*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
    --md-sys-color-primary: #5D7A5E;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #DFF7DE;
    --md-sys-color-on-primary-container: #002110;
    --md-sys-color-secondary: #52634F;
    --md-sys-color-on-secondary: #FFFFFF;
    --md-sys-color-secondary-container: #D5E8CE;
    --md-sys-color-on-secondary-container: #10200D;
    --md-sys-color-tertiary: #C4A97D;
    --md-sys-color-on-tertiary: #FFFFFF;
    --md-sys-color-tertiary-container: #FFF0D5;
    --md-sys-color-on-tertiary-container: #2A1F00;
    --md-sys-color-error: #BA1A1A;
    --md-sys-color-on-error: #FFFFFF;
    --md-sys-color-error-container: #FFDAD6;
    --md-sys-color-on-error-container: #410002;
    --md-sys-color-background: #F8FBF4;
    --md-sys-color-on-background: #191D18;
    --md-sys-color-surface: #F8FBF4;
    --md-sys-color-on-surface: #191D18;
    --md-sys-color-surface-variant: #DDE5D9;
    --md-sys-color-on-surface-variant: #42493F;
    --md-sys-color-outline: #72796E;
    --md-sys-color-outline-variant: #C1C9BD;
    --md-sys-color-shadow: rgba(0,0,0,0.1);
    --md-sys-color-scrim: rgba(0,0,0,0.4);
    --md-sys-color-surface-container: #EDF1E8;
    --md-sys-color-surface-container-high: #E7ECE3;
    --md-sys-color-surface-container-highest: #E1E6DE;
    --md-sys-color-surface-container-lowest: #FFFFFF;
    --file-icon-folder: #5D7A5E;
    --file-icon-image: #5D7A5E;
    --file-icon-pdf: #C76B4C;
    --file-icon-doc: #6B8A9E;
    --file-icon-video: #8E6B9E;
    --file-icon-audio: #9E8E6B;
    --file-icon-archive: #6B9E8E;
    --file-icon-other: #9E9E9E;
    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-2xl: 28px;
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 20px;
    --space-2xl: 24px;
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 64px;
    --top-bar-height: 56px;
    --bottom-nav-height: 64px;
    --touch-target: 44px;
    --transition-base: 0.2s ease;
    --transition-theme: 0.3s ease;
}

.dark {
    --md-sys-color-primary: #B2CCAE;
    --md-sys-color-on-primary: #003917;
    --md-sys-color-primary-container: #2D512C;
    --md-sys-color-on-primary-container: #DFF7DE;
    --md-sys-color-secondary: #B9CCB3;
    --md-sys-color-on-secondary: #243423;
    --md-sys-color-secondary-container: #3A4B38;
    --md-sys-color-on-secondary-container: #D5E8CE;
    --md-sys-color-tertiary: #D4BFA0;
    --md-sys-color-on-tertiary: #342818;
    --md-sys-color-tertiary-container: #4C3E2B;
    --md-sys-color-on-tertiary-container: #FFF0D5;
    --md-sys-color-error: #FFB4AB;
    --md-sys-color-on-error: #690005;
    --md-sys-color-error-container: #93000A;
    --md-sys-color-on-error-container: #FFDAD6;
    --md-sys-color-background: #191D18;
    --md-sys-color-on-background: #E1E6DE;
    --md-sys-color-surface: #191D18;
    --md-sys-color-on-surface: #E1E6DE;
    --md-sys-color-surface-variant: #42493F;
    --md-sys-color-on-surface-variant: #C1C9BD;
    --md-sys-color-outline: #8C9386;
    --md-sys-color-outline-variant: #42493F;
    --md-sys-color-surface-container: #1E211D;
    --md-sys-color-surface-container-high: #282C27;
    --md-sys-color-surface-container-highest: #333731;
    --md-sys-color-surface-container-lowest: #0E0F0D;
    --file-icon-folder: #B2CCAE;
    --file-icon-image: #B2CCAE;
    --file-icon-pdf: #E8A590;
    --file-icon-doc: #A3C0D4;
    --file-icon-video: #C4A3D4;
    --file-icon-audio: #D4C4A3;
    --file-icon-archive: #A3D4C4;
    --file-icon-other: #B0B0B0;
}

html {
    color-scheme: light;
    scroll-behavior: smooth;
}

html.dark {
    color-scheme: dark;
}

body {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    font-family: 'Roboto', -apple-system, sans-serif;
    background: var(--md-sys-color-background);
    color: var(--md-sys-color-on-background);
    transition: background var(--transition-theme), color var(--transition-theme);
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
}

img, video, canvas, svg {
    max-width: 100%;
    height: auto;
}

.material-symbols-rounded {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    user-select: none;
    pointer-events: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.material-symbols-rounded.filled {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    background: var(--md-sys-color-background);
    transition: background var(--transition-theme);
}

.app-layout {
    display: flex;
    flex: 1;
    min-height: 0;
}

.main-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-base);
    min-height: 100vh;
    min-height: 100dvh;
}

@media (max-width: 1023px) {
    .main-content {
        margin-left: 0 !important;
    }
}

.sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--md-sys-color-surface);
    border-right: 1px solid var(--md-sys-color-outline-variant);
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 90;
    flex-shrink: 0;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.3s cubic-bezier(0.4, 0, 0.2, 1), background var(--transition-theme);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar.collapsed .sidebar-item-text,
.sidebar.collapsed .sidebar-section-title,
.sidebar.collapsed .sidebar-storage-text,
.sidebar.collapsed .sidebar-folder-tree,
.sidebar.collapsed .sidebar-item-badge,
.sidebar.collapsed .sidebar-logo-text,
.sidebar.collapsed .sidebar-logo-horizontal,
.sidebar.collapsed .sidebar-storage {
    display: none !important;
}

.sidebar.collapsed .sidebar-logo-icon-only {
    display: flex !important;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.sidebar.collapsed .sidebar-logo {
    justify-content: center;
    padding: var(--space-lg) var(--space-sm);
}

.sidebar.collapsed .sidebar-item {
    justify-content: center;
    padding: var(--space-md) var(--space-sm);
}

.sidebar.collapsed .sidebar-item .sidebar-item-icon {
    margin: 0;
}

.sidebar:not(.collapsed) .sidebar-logo-icon-only {
    display: none !important;
}

.sidebar-scroll {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
    min-height: 0;
    padding-bottom: 52px;
}

.sidebar-scroll::-webkit-scrollbar {
    width: 4px;
}

.sidebar-scroll::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-scroll::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: 4px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    transition: background var(--transition-base);
    user-select: none;
    flex-shrink: 0;
}

.sidebar-logo:hover {
    background: var(--md-sys-color-surface-variant);
}

.sidebar-section-title {
    font-size: 11px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    padding: var(--space-lg) var(--space-xl) var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.7;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px var(--space-xl);
    cursor: pointer;
    border-radius: var(--radius-sm);
    margin: 1px var(--space-sm);
    transition: background var(--transition-base);
    user-select: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    white-space: nowrap;
    min-width: 0;
    min-height: var(--touch-target);
}

.sidebar-item:hover {
    background: var(--md-sys-color-surface-variant);
}

.sidebar-item.active {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    font-weight: 600;
}

.sidebar-item-icon {
    font-size: 22px;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.sidebar-item-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-item-badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface-variant);
    font-weight: 500;
}

.sidebar-storage {
    padding: var(--space-lg) var(--space-xl);
    margin-top: auto;
    flex-shrink: 0;
}

.sidebar-storage-bar {
    height: 4px;
    background: var(--md-sys-color-surface-variant);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 6px;
}

.sidebar-storage-fill {
    height: 100%;
    background: var(--md-sys-color-primary);
    border-radius: 2px;
    width: 2%;
    transition: width 0.5s ease;
}

.sidebar-storage-text {
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-folder-tree {
    padding: var(--space-xs) var(--space-sm);
}

.sidebar-folder-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    cursor: pointer;
    border-radius: 10px;
    font-size: 13px;
    color: var(--md-sys-color-on-surface-variant);
    transition: background var(--transition-base);
    user-select: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    min-height: var(--touch-target);
}

.sidebar-folder-item:hover {
    background: var(--md-sys-color-surface-variant);
}

.sidebar-folder-item.active {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    font-weight: 500;
}

.sidebar-folder-item .folder-arrow {
    font-size: 16px;
    transition: transform var(--transition-base);
    flex-shrink: 0;
    opacity: 0.5;
}

.sidebar-folder-item .folder-arrow.expanded {
    transform: rotate(90deg);
}

.sidebar-folder-children {
    margin-left: var(--space-lg);
    display: none;
}

.sidebar-folder-children.expanded {
    display: block;
}

.sidebar-toggle-btn {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--md-sys-color-surface-container-highest);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    z-index: 5;
    transition: background var(--transition-base), box-shadow var(--transition-base);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.sidebar-toggle-btn:hover {
    background: var(--md-sys-color-surface-variant);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.sidebar-toggle-btn .material-symbols-rounded {
    transition: transform 0.3s ease;
}

.sidebar.collapsed .sidebar-toggle-btn .material-symbols-rounded {
    transform: rotate(180deg);
}

.sidebar .sidebar-item[title]:hover::after,
.sidebar.collapsed .sidebar-item::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--md-sys-color-surface-container-highest);
    color: var(--md-sys-color-on-surface);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    pointer-events: none;
}

.sidebar.collapsed .sidebar-item {
    position: relative;
}

.sidebar.collapsed .sidebar-item::after {
    display: none;
}

.sidebar.collapsed .sidebar-item:hover::after {
    display: block;
}

@media (max-width: 1023px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 95;
        box-shadow: none;
    }

    .sidebar.mobile-open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0,0,0,0.2);
    }

    .sidebar.collapsed {
        transform: translateX(-100%);
    }

    .sidebar.collapsed.mobile-open {
        transform: translateX(0);
        width: var(--sidebar-width);
    }

    .sidebar.collapsed.mobile-open .sidebar-item-text,
    .sidebar.collapsed.mobile-open .sidebar-section-title,
    .sidebar.collapsed.mobile-open .sidebar-storage-text,
    .sidebar.collapsed.mobile-open .sidebar-folder-tree,
    .sidebar.collapsed.mobile-open .sidebar-item-badge,
    .sidebar.collapsed.mobile-open .sidebar-logo-text,
    .sidebar.collapsed.mobile-open .sidebar-logo-horizontal,
    .sidebar.collapsed.mobile-open .sidebar-storage {
        display: block !important;
    }

    .sidebar.collapsed.mobile-open .sidebar-logo-icon-only {
        display: none !important;
    }

    .sidebar.collapsed.mobile-open .sidebar-logo {
        justify-content: flex-start;
        padding: var(--space-lg) var(--space-xl);
    }

    .sidebar.collapsed.mobile-open .sidebar-item {
        justify-content: flex-start;
        padding: 10px var(--space-xl);
    }

    .sidebar.collapsed.mobile-open .sidebar-item .sidebar-item-icon {
        margin: 0;
    }

    .sidebar .sidebar-item:hover::after {
        display: none !important;
    }
}

.mobile-sidebar-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 85;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-sidebar-backdrop.visible {
    opacity: 1;
    visibility: visible;
}

.top-bar {
    z-index: 75;
    background: var(--md-sys-color-surface);
    padding-top: env(safe-area-inset-top, 8px);
    transition: background var(--transition-theme), box-shadow var(--transition-base), transform 0.3s ease, opacity 0.3s ease;
    width: 100%;
    flex-shrink: 0;
}

.top-bar.scrolled {
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.top-bar-content {
    display: flex;
    align-items: center;
    padding: var(--space-xs) var(--space-md);
    gap: 6px;
    min-height: 56px;
    width: 100%;
}

.top-bar.multi-select {
    background: var(--md-sys-color-surface-container-high);
}

.top-bar-left,
.top-bar-right {
    display: flex;
    align-items: center;
    gap: 2px;
    flex-shrink: 0;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface);
    transition: background var(--transition-base), color var(--transition-base), transform 0.15s ease;
    flex-shrink: 0;
    user-select: none;
    border: 2px solid transparent;
}

.icon-btn:active {
    transform: scale(0.92);
}

.icon-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
    .icon-btn:hover {
        background: var(--md-sys-color-surface-variant);
        box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
        border-color: var(--md-sys-color-primary);
    }
}

@media (max-width: 1023px) {
    .icon-btn {
        width: var(--touch-target);
        height: var(--touch-target);
    }
}

.avatar-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    user-select: none;
    padding: 0;
    transition: box-shadow var(--transition-base), transform 0.15s ease;
    border: 2px solid transparent;
}

.avatar-btn:active {
    transform: scale(0.92);
}

.avatar-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
    .avatar-btn:hover {
        box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
        border-color: var(--md-sys-color-primary);
    }
}

@media (max-width: 1023px) {
    .avatar-btn {
        width: var(--touch-target);
        height: var(--touch-target);
    }
}

.avatar-btn img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-placeholder-icon {
    font-size: 22px;
    color: var(--md-sys-color-on-surface-variant);
}

.search-container {
    flex: 1;
    min-width: 0;
    display: flex;
    justify-content: stretch;
    position: relative;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--md-sys-color-surface-container-high);
    border-radius: var(--radius-2xl);
    padding: 4px 8px 4px 14px;
    height: 48px;
    border: 2px solid transparent;
    transition: border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
    width: 100%;
    min-width: 0;
}

.search-input-wrapper:focus-within {
    border-color: var(--md-sys-color-primary);
    background: var(--md-sys-color-surface-container-highest);
    box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
}

.search-input-wrapper .material-symbols-rounded:first-child {
    font-size: 20px;
    color: var(--md-sys-color-on-surface-variant);
    flex-shrink: 0;
}

.search-input-wrapper input {
    flex: 1;
    border: none;
    background: none;
    font-size: 16px;
    color: var(--md-sys-color-on-surface);
    outline: none;
    font-family: inherit;
    min-width: 0;
    padding: 8px;
}

.search-input-wrapper input::placeholder {
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.7;
}

.search-actions {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    flex-shrink: 0;
}

.search-actions .mini-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 18px;
    transition: background var(--transition-base), transform 0.15s ease;
    user-select: none;
}

.search-actions .mini-btn:active {
    transform: scale(0.9);
}

.search-actions .mini-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

.search-ai-chip {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 5px 10px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--md-sys-color-outline-variant);
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface-variant);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.25s ease;
    flex-shrink: 0;
    font-family: inherit;
    user-select: none;
}

.search-ai-chip:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

.search-ai-chip.active {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    border-color: var(--md-sys-color-primary);
    font-weight: 600;
}

.search-ai-chip .chip-icon {
    font-size: 17px;
    transition: transform var(--transition-base);
}

.search-ai-chip.active .chip-icon {
    transform: scale(1.1);
}

@media (hover: hover) and (pointer: fine) {
    .search-ai-chip:hover {
        background: var(--md-sys-color-surface-container);
        border-color: var(--md-sys-color-outline);
    }
    .search-ai-chip.active:hover {
        background: var(--md-sys-color-primary-container);
        border-color: var(--md-sys-color-primary);
        opacity: 0.9;
    }
}

.ai-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    z-index: 100;
    margin-top: 6px;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.ai-suggestions.visible {
    opacity: 1;
    visibility: visible;
}

.ai-suggestion-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    transition: background var(--transition-base);
    min-height: var(--touch-target);
}

.ai-suggestion-item:hover {
    background: var(--md-sys-color-surface-variant);
}

.ai-suggestion-item .suggestion-icon {
    font-size: 18px;
    color: var(--md-sys-color-primary);
    flex-shrink: 0;
}

.ai-suggestion-item .suggestion-text {
    flex: 1;
    font-size: 14px;
    color: var(--md-sys-color-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sticky-controls {
    position: sticky;
    top: 0;
    z-index: 70;
    background: var(--md-sys-color-background);
    transition: background var(--transition-theme), transform 0.3s ease, opacity 0.3s ease;
    flex-shrink: 0;
    width: 100%;
}

.breadcrumbs-row-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 4px 14px 4px 12px;
    margin: 6px 8px 3px;
}

.breadcrumbs-scroll-wrapper {
    flex: 1;
    min-width: 0;
    position: relative;
}

.breadcrumbs-scroll-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--md-sys-color-surface-container-highest);
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    flex-shrink: 0;
    transition: background var(--transition-base), opacity var(--transition-base), transform 0.15s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    opacity: 0;
    pointer-events: none;
}

.breadcrumbs-scroll-btn:active {
    transform: scale(0.9);
}

.breadcrumbs-scroll-btn.visible {
    display: flex;
    opacity: 1;
    pointer-events: auto;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 1px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    flex-wrap: nowrap;
    scroll-behavior: smooth;
    background: var(--md-sys-color-surface-container);
    border-radius: 14px;
    padding: 3px 6px;
    -webkit-overflow-scrolling: touch;
}

.breadcrumbs::-webkit-scrollbar {
    display: none;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: var(--radius-lg);
    cursor: pointer;
    white-space: nowrap;
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    transition: background var(--transition-base), color var(--transition-base);
    flex-shrink: 0;
    user-select: none;
    background: transparent;
    border: 1px solid transparent;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
    min-height: var(--touch-target);
}

.breadcrumb-item:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

.breadcrumb-item.current {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    border-color: var(--md-sys-color-primary);
    cursor: default;
}

@media (hover: hover) and (pointer: fine) {
    .breadcrumb-item:hover:not(.current) {
        background: var(--md-sys-color-surface-container-highest);
        border-color: var(--md-sys-color-outline-variant);
    }
}

.breadcrumb-separator {
    color: var(--md-sys-color-on-surface);
    font-size: 16px;
    flex-shrink: 0;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    opacity: 0.5;
}

.view-toggle-row {
    display: flex;
    align-items: center;
    border-radius: var(--radius-sm);
    background: var(--md-sys-color-surface-container);
    padding: 2px;
    flex-shrink: 0;
    margin-left: var(--space-xs);
}

.view-toggle-btn {
    width: 34px;
    height: 34px;
    border: none;
    background: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    transition: all 0.25s ease;
    user-select: none;
}

.view-toggle-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

.view-toggle-btn.active {
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

@media (hover: hover) and (pointer: fine) {
    .view-toggle-btn:hover {
        background: var(--md-sys-color-surface-container);
    }
}

.sections-row {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 4px 12px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    background: var(--md-sys-color-surface-variant);
    border-radius: var(--radius-lg);
    margin: 4px 12px;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    flex-wrap: nowrap;
}

.sections-row::-webkit-scrollbar {
    display: none;
}

.section-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 13px;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-base);
    flex-shrink: 0;
    font-family: inherit;
    user-select: none;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
    min-height: var(--touch-target);
}

.section-chip:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

.section-chip.active {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.section-chip .chip-icon {
    font-size: 17px;
}

@media (hover: hover) and (pointer: fine) {
    .section-chip:hover {
        background: var(--md-sys-color-surface-container);
    }
}

.section-add-btn {
    width: 34px;
    height: 34px;
    border-radius: 17px;
    border: none;
    background: var(--md-sys-color-surface-container-high);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-primary);
    flex-shrink: 0;
    transition: background var(--transition-base), transform 0.15s ease;
    user-select: none;
    margin-left: 2px;
}

.section-add-btn:active {
    transform: scale(0.9);
}

.section-add-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

@media (hover: hover) and (pointer: fine) {
    .section-add-btn:hover {
        background: var(--md-sys-color-surface-variant);
    }
}

.sort-view-row {
    display: flex;
    align-items: center;
    padding: 4px 12px;
    gap: 0;
    width: 100%;
}

.sort-col {
    display: flex;
    align-items: center;
    gap: 0;
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    cursor: pointer;
    padding: 4px 10px;
    border-radius: var(--radius-xs);
    transition: background var(--transition-base), color var(--transition-base);
    user-select: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-height: var(--touch-target);
}

.sort-col.header-col-name {
    flex: 1;
    min-width: 0;
    justify-content: flex-start;
}

.sort-col.header-col-date {
    width: 130px;
    flex-shrink: 0;
    justify-content: flex-start;
}

.sort-col.header-col-type {
    width: 120px;
    flex-shrink: 0;
    justify-content: flex-start;
    position: relative;
}

.sort-col.header-col-size {
    width: 90px;
    flex-shrink: 0;
    justify-content: flex-end;
}

.sort-col:hover {
    background: var(--md-sys-color-surface-variant);
}

.sort-col.active {
    color: var(--md-sys-color-primary);
}

.sort-arrow {
    font-size: 16px;
    opacity: 0;
    transition: opacity var(--transition-base), transform var(--transition-base);
}

.sort-col.active .sort-arrow {
    opacity: 1;
}

.sort-col.asc .sort-arrow {
    transform: rotate(0deg);
}

.sort-col.desc .sort-arrow {
    transform: rotate(180deg);
}

.sort-separator {
    width: 1px;
    height: 16px;
    background: var(--md-sys-color-outline-variant);
    margin: 0 6px;
    flex-shrink: 0;
}

.type-dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    z-index: 50;
    min-width: 170px;
    overflow: hidden;
    margin-top: var(--space-xs);
    animation: fadeInDown 0.15s ease;
}

.type-dropdown-item {
    padding: 10px 14px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    transition: background var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    white-space: nowrap;
    min-height: var(--touch-target);
}

.type-dropdown-item:hover {
    background: var(--md-sys-color-surface-variant);
}

.type-dropdown-item.active {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.type-dropdown-item .type-dot {
    width: 8px;
    height: 8px;
    border-radius: 2px;
    flex-shrink: 0;
}

.bottom-nav {
    display: none;
    align-items: center;
    justify-content: space-around;
    background: var(--md-sys-color-surface-container);
    border-top: 1px solid var(--md-sys-color-outline-variant);
    height: var(--bottom-nav-height);
    min-height: var(--bottom-nav-height);
    padding: 0 4px;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    z-index: 80;
    flex-shrink: 0;
    transition: background var(--transition-theme), transform 0.3s ease;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: var(--space-xs) var(--space-sm);
    cursor: pointer;
    border-radius: var(--radius-md);
    border: none;
    background: none;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 10px;
    font-weight: 500;
    font-family: inherit;
    transition: all var(--transition-base);
    user-select: none;
    min-width: 48px;
    max-width: 80px;
    min-height: 48px;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.bottom-nav-item.active {
    color: var(--md-sys-color-primary);
    font-weight: 600;
}

.bottom-nav-item .bn-icon {
    font-size: 24px;
    transition: transform var(--transition-base), font-variation-settings var(--transition-base);
}

.bottom-nav-item.active .bn-icon {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

@media (max-width: 1023px) {
    .bottom-nav {
        display: flex;
    }
    .bottom-nav.hidden {
        display: none;
    }
}

.content-area {
    flex: 1;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
    min-height: 0;
    padding: 0 12px;
}

@media (min-width: 480px) {
    .content-area {
        padding: 0 16px;
    }
}

@media (min-width: 768px) {
    .content-area {
        padding: 0 20px;
    }
}

@media (min-width: 1024px) {
    .content-area {
        padding: 0 24px;
    }
}

@media (min-width: 1280px) {
    .content-area {
        padding: 0 28px;
    }
}

.content-area::-webkit-scrollbar {
    width: 6px;
}

.content-area::-webkit-scrollbar-track {
    background: transparent;
}

.content-area::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: 10px;
    min-height: 40px;
    transition: background var(--transition-base);
}

.content-area::-webkit-scrollbar-thumb:hover {
    background: var(--md-sys-color-outline);
}

.file-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    width: 100%;
}

.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
    width: 100%;
}

@media (min-width: 480px) {
    .file-grid {
        gap: 12px;
    }
}

@media (min-width: 768px) {
    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 16px;
    }
}

.file-card {
    display: flex;
    align-items: center;
    padding: 10px;
    border-radius: 14px;
    cursor: pointer;
    gap: 10px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    position: relative;
    width: 100%;
    min-width: 0;
    min-height: 56px;
}

.file-card:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: -2px;
}

.file-card.selected {
    background: var(--md-sys-color-primary-container);
    border-color: var(--md-sys-color-primary);
}

.file-card.drag-over {
    background: var(--md-sys-color-primary-container);
    border: 2px dashed var(--md-sys-color-primary);
    transform: scale(1.01);
}

@media (hover: hover) and (pointer: fine) {
    .file-card:hover {
        background: var(--md-sys-color-surface-container);
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    }
}

.file-icon-box {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.file-icon-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.file-icon-box.folder {
    background: rgba(93, 122, 94, 0.1);
    color: var(--file-icon-folder);
}

.file-icon-box.image {
    background: rgba(93, 122, 94, 0.1);
    color: var(--file-icon-image);
}

.file-icon-box.pdf {
    background: rgba(199, 107, 76, 0.1);
    color: var(--file-icon-pdf);
}

.file-icon-box.doc {
    background: rgba(107, 138, 158, 0.1);
    color: var(--file-icon-doc);
}

.file-icon-box.video {
    background: rgba(142, 107, 158, 0.1);
    color: var(--file-icon-video);
}

.file-icon-box.audio {
    background: rgba(158, 142, 107, 0.1);
    color: var(--file-icon-audio);
}

.file-icon-box.archive {
    background: rgba(107, 158, 142, 0.1);
    color: var(--file-icon-archive);
}

.file-icon-box.other {
    background: rgba(158, 158, 158, 0.1);
    color: var(--file-icon-other);
}

.dark .file-icon-box.folder {
    background: rgba(178, 204, 174, 0.1);
}

.dark .file-icon-box.image {
    background: rgba(178, 204, 174, 0.1);
}

.file-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
}

.file-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 20px;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 6px;
}

.file-name mark,
.file-name .search-highlight {
    background: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
    border-radius: 3px;
    padding: 0 2px;
    font-weight: 600;
}

.file-name .label-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.file-meta {
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
    margin-top: 2px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.match-badge {
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 8px;
    font-weight: 500;
    flex-shrink: 0;
}

.match-badge.name-match {
    background: var(--md-sys-color-secondary-container);
    color: var(--md-sys-color-on-secondary-container);
}

.match-badge.content-match {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.card-actions {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity var(--transition-base);
}

@media (hover: hover) and (pointer: fine) {
    .file-card:hover .card-actions {
        opacity: 1;
    }
}

@media (max-width: 1023px) {
    .card-actions {
        opacity: 1;
    }
}

.card-action-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 18px;
    flex-shrink: 0;
    transition: background var(--transition-base), color var(--transition-base), transform 0.15s ease;
    user-select: none;
}

.card-action-btn:active {
    transform: scale(0.9);
}

.card-action-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

@media (hover: hover) and (pointer: fine) {
    .card-action-btn:hover {
        background: var(--md-sys-color-surface-variant);
        color: var(--md-sys-color-primary);
    }
}

.checkbox {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--md-sys-color-outline);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    user-select: none;
}

.file-card.selected .checkbox {
    background: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
}

.file-card.selected .checkbox::after {
    content: '\2713';
    color: white;
    font-size: 12px;
    font-weight: 700;
    font-family: inherit;
}

.file-col-date {
    width: 130px;
    flex-shrink: 0;
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
}

.file-col-type {
    width: 120px;
    flex-shrink: 0;
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
}

.file-col-size {
    width: 90px;
    flex-shrink: 0;
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
    text-align: right;
}

@media (max-width: 600px) {
    .file-col-date,
    .file-col-type,
    .file-col-size {
        display: none;
    }
}

.file-card-grid {
    padding: 10px 6px;
    border-radius: 14px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-height: 130px;
    width: 100%;
    position: relative;
}

.file-card-grid:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: -2px;
}

.file-card-grid.selected {
    background: var(--md-sys-color-primary-container);
    border-color: var(--md-sys-color-primary);
}

.file-card-grid.drag-over {
    background: var(--md-sys-color-primary-container);
    border: 2px dashed var(--md-sys-color-primary);
    transform: scale(1.02);
}

@media (hover: hover) and (pointer: fine) {
    .file-card-grid:hover {
        background: var(--md-sys-color-surface-container);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0,0,0,0.06);
    }
}

.grid-icon-box {
    width: 100%;
    max-width: 80px;
    aspect-ratio: 1 / 1;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
    overflow: hidden;
    background: var(--md-sys-color-surface-variant);
    transition: transform var(--transition-base), background var(--transition-theme);
    user-select: none;
    position: relative;
}

.grid-icon-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.grid-icon-placeholder {
    font-size: 34px;
    z-index: 0;
}

.grid-file-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    width: 100%;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.grid-file-name mark,
.grid-file-name .search-highlight {
    background: var(--md-sys-color-tertiary-container);
    color: var(--md-sys-color-on-tertiary-container);
    border-radius: 3px;
    padding: 0 2px;
    font-weight: 600;
}

.grid-file-name .label-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.grid-file-size {
    font-size: 10px;
    color: var(--md-sys-color-on-surface-variant);
}

.grid-card-actions {
    display: flex;
    gap: 1px;
    position: absolute;
    top: 4px;
    right: 4px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

@media (hover: hover) and (pointer: fine) {
    .file-card-grid:hover .grid-card-actions {
        opacity: 1;
    }
}

@media (max-width: 1023px) {
    .grid-card-actions {
        opacity: 1;
    }
}

.grid-action-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--md-sys-color-surface-container-highest);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 16px;
    flex-shrink: 0;
    transition: background var(--transition-base), color var(--transition-base), transform 0.15s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.grid-action-btn:active {
    transform: scale(0.9);
}

@media (max-width: 1023px) {
    .grid-action-btn {
        width: 32px;
        height: 32px;
        font-size: 18px;
    }
}

.grid-action-btn:hover {
    background: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-primary);
}

.favorite-star {
    cursor: pointer;
    transition: color var(--transition-base), transform var(--transition-base);
    color: var(--md-sys-color-on-surface-variant);
}

.favorite-star.active {
    color: #F59E0B;
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.favorite-star:hover {
    transform: scale(1.15);
}

.file-list-header {
    display: flex;
    align-items: center;
    padding: 4px 12px;
    gap: 0;
    width: 100%;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    background: var(--md-sys-color-surface-container);
    border-radius: 10px 10px 0 0;
    position: sticky;
    top: 0;
    z-index: 5;
    min-height: 36px;
}

.file-list-header .header-col {
    font-size: 11px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface-variant);
    text-transform: none;
    letter-spacing: 0.01em;
    padding: 6px 10px;
    cursor: pointer;
    border-radius: 6px;
    transition: background var(--transition-base), color var(--transition-base);
    user-select: none;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 3px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-list-header .header-col:hover {
    background: var(--md-sys-color-surface-variant);
}

.file-list-header .header-col.active {
    color: var(--md-sys-color-primary);
}

.file-list-header .header-col-name {
    flex: 1;
    min-width: 0;
}

.file-list-header .header-col-date {
    width: 130px;
    flex-shrink: 0;
}

.file-list-header .header-col-type {
    width: 120px;
    flex-shrink: 0;
    position: relative;
}

.file-list-header .header-col-size {
    width: 90px;
    flex-shrink: 0;
    justify-content: flex-end;
}

.file-list-header .header-col-actions {
    width: 80px;
    flex-shrink: 0;
    justify-content: flex-end;
    padding: 6px 8px;
}

.fab-container {
    position: fixed;
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    z-index: 200;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

@media (max-width: 1023px) {
    .fab-container {
        bottom: calc(var(--bottom-nav-height) + 16px);
    }
}

.fab-container > * {
    pointer-events: auto;
}

.fab {
    height: 56px;
    padding: 0 24px;
    border-radius: var(--radius-2xl);
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: box-shadow var(--transition-base), background var(--transition-theme), transform 0.15s ease;
    white-space: nowrap;
    user-select: none;
}

.fab:active {
    transform: scale(0.95);
}

.fab:focus-visible {
    outline: 2px solid var(--md-sys-color-on-primary);
    outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
    .fab:hover {
        box-shadow: 0 6px 16px rgba(0,0,0,0.25);
    }
}

@media (max-width: 1023px) {
    .fab {
        height: 50px;
        padding: 0 20px;
        font-size: 14px;
        border-radius: 25px;
    }
}

.fab-menu {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-lg);
    padding: 8px 0;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    width: 280px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform-origin: bottom center;
    margin-bottom: 8px;
    animation: fadeInUp 0.2s ease;
}

.fab-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-xl);
    cursor: pointer;
    font-size: 15px;
    color: var(--md-sys-color-on-surface);
    transition: background var(--transition-base);
    border: none;
    background: none;
    font-family: inherit;
    width: 100%;
    text-align: left;
    user-select: none;
    min-height: 48px;
}

.fab-menu-item:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: -2px;
}

.fab-menu-item .menu-item-icon {
    font-size: 24px;
    color: var(--md-sys-color-primary);
}

@media (hover: hover) and (pointer: fine) {
    .fab-menu-item:hover {
        background: var(--md-sys-color-surface-variant);
    }
}

.fab-menu-divider {
    height: 1px;
    background: var(--md-sys-color-outline-variant);
    margin: var(--space-xs) var(--space-xl);
}

.multi-select-bar {
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding: 8px 12px;
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-2xl);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
    gap: var(--space-xs);
    width: 100%;
    max-width: 400px;
}

.multi-select-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 6px 12px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--md-sys-color-on-surface);
    font-size: 10px;
    font-family: inherit;
    border-radius: var(--radius-sm);
    transition: background var(--transition-base), color var(--transition-base), transform 0.15s ease;
    user-select: none;
    white-space: nowrap;
    min-height: 48px;
}

.multi-select-btn:active {
    transform: scale(0.9);
}

.multi-select-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

.multi-select-btn.danger {
    color: var(--md-sys-color-error);
}

.multi-select-btn .ms-icon {
    font-size: 22px;
}

@media (hover: hover) and (pointer: fine) {
    .multi-select-btn:hover {
        background: var(--md-sys-color-surface-variant);
    }
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-sys-color-scrim);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-sys-color-scrim);
    z-index: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    overflow-y: auto;
    animation: fadeIn 0.2s ease;
}

.dialog {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-2xl);
    padding: var(--space-2xl);
    width: 100%;
    max-width: 420px;
    max-height: 85vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
    margin: auto;
    transition: background var(--transition-theme);
    word-break: break-word;
}

.dialog::-webkit-scrollbar {
    width: 4px;
}

.dialog::-webkit-scrollbar-track {
    background: transparent;
}

.dialog::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: 4px;
}

.dialog h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--md-sys-color-on-surface);
    letter-spacing: -0.01em;
}

.dialog input,
.dialog select,
.dialog textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--radius-sm);
    font-size: 16px;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    margin-bottom: var(--space-lg);
    outline: none;
    transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-theme), color var(--transition-theme);
    box-sizing: border-box;
}

.dialog input:focus,
.dialog select:focus,
.dialog textarea:focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
}

.dialog textarea {
    resize: vertical;
    min-height: 80px;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.dialog-btn {
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    transition: background var(--transition-base), color var(--transition-base), transform 0.15s ease;
    user-select: none;
    white-space: nowrap;
    min-height: var(--touch-target);
}

.dialog-btn:active {
    transform: scale(0.95);
}

.dialog-btn:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}

.dialog-btn.primary {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
}

.dialog-btn.primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.dialog-btn.danger {
    background: var(--md-sys-color-error);
    color: var(--md-sys-color-on-error);
}

.dialog-btn.secondary {
    background: none;
    color: var(--md-sys-color-primary);
}

.dialog-section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    text-align: center;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
    word-break: break-word;
}

.dialog-logo {
    text-align: center;
    margin-bottom: 10px;
}

.bottom-sheet {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-2xl);
    width: 100%;
    max-width: 480px;
    padding: var(--space-2xl);
    max-height: 80vh;
    overflow-y: auto;
}

.bottom-sheet h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--md-sys-color-on-surface);
    letter-spacing: -0.01em;
}

.sheet-menu-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: 14px 8px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
    font-size: 15px;
    color: var(--md-sys-color-on-surface);
    border: none;
    background: none;
    font-family: inherit;
    width: 100%;
    text-align: left;
    user-select: none;
    min-height: 48px;
}

.sheet-menu-item:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 1px;
}

.sheet-menu-item.danger {
    color: var(--md-sys-color-error);
}

.sheet-menu-item .sheet-icon {
    font-size: 24px;
    color: var(--md-sys-color-primary);
    flex-shrink: 0;
}

.sheet-menu-item.danger .sheet-icon {
    color: var(--md-sys-color-error);
}

@media (hover: hover) and (pointer: fine) {
    .sheet-menu-item:hover {
        background: var(--md-sys-color-surface-variant);
    }
}

.property-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    gap: var(--space-md);
}

.property-label {
    color: var(--md-sys-color-on-surface-variant);
    flex-shrink: 0;
}

.property-value {
    color: var(--md-sys-color-on-surface);
    font-weight: 500;
    text-align: right;
    word-break: break-word;
}

.divider {
    height: 1px;
    background: var(--md-sys-color-outline-variant);
    margin: 4px 0;
}

.settings-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-sys-color-scrim);
    z-index: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-y: auto;
    padding: 24px;
    animation: fadeIn 0.2s ease;
}

.settings-panel {
    background: var(--md-sys-color-surface-container-high);
    border-radius: var(--radius-2xl);
    width: 94%;
    max-width: 480px;
    max-height: 82vh;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
    margin: auto;
    transition: background var(--transition-theme);
}

.settings-panel::-webkit-scrollbar {
    width: 6px;
}

.settings-panel::-webkit-scrollbar-track {
    background: transparent;
}

.settings-panel::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: 10px;
    min-height: 40px;
}

.settings-page {
    width: 100%;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    flex-shrink: 0;
}

.settings-page.hidden-left {
    transform: translateX(-100%);
    opacity: 0;
    position: absolute;
    pointer-events: none;
}

.settings-subpage {
    width: 100%;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    flex-shrink: 0;
    position: absolute;
    top: 0;
    left: 0;
}

.settings-subpage.hidden-right {
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
}

.settings-subpage.active {
    transform: translateX(0);
    opacity: 1;
    position: relative;
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    position: relative;
    gap: var(--space-sm);
    min-height: 60px;
}

.settings-header-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 24px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    letter-spacing: -0.02em;
    transition: background var(--transition-base);
    user-select: none;
}

.settings-header-close {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    width: 40px;
    height: 40px;
    background: var(--md-sys-color-surface-variant);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition-base), transform 0.15s ease;
    transform: translateY(-50%);
}

.settings-header-close:active {
    transform: translateY(-50%) scale(0.9);
}

@media (max-width: 1023px) {
    .settings-header-close {
        width: var(--touch-target);
        height: var(--touch-target);
    }
}

@media (hover: hover) and (pointer: fine) {
    .settings-header-close:hover {
        background: var(--md-sys-color-surface-container-highest);
    }
}

.settings-back-btn {
    position: absolute;
    left: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition-base), transform 0.15s ease;
    background: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface);
}

.settings-back-btn:active {
    transform: translateY(-50%) scale(0.9);
}

@media (max-width: 1023px) {
    .settings-back-btn {
        width: var(--touch-target);
        height: var(--touch-target);
    }
}

.settings-section-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-primary);
    padding: var(--space-lg) var(--space-xl) var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.settings-card {
    margin: 0 14px 8px;
    background: var(--md-sys-color-surface);
    border-radius: var(--radius-lg);
    border: 0.5px solid var(--md-sys-color-outline-variant);
    overflow: hidden;
    transition: background var(--transition-theme);
}

.settings-nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px var(--space-lg);
    cursor: pointer;
    transition: background var(--transition-base);
    user-select: none;
    position: relative;
    min-height: 48px;
}

.settings-nav-item:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: -2px;
}

.settings-nav-item .nav-icon {
    font-size: 22px;
    color: var(--md-sys-color-primary);
    flex-shrink: 0;
}

.settings-nav-item .nav-text {
    flex: 1;
    font-size: 15px;
    color: var(--md-sys-color-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
}

.settings-nav-item .nav-subtitle {
    font-size: 12px;
    color: var(--md-sys-color-on-surface-variant);
    margin-top: 2px;
}

.settings-nav-item .nav-chevron {
    font-size: 20px;
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.4;
    flex-shrink: 0;
}

@media (hover: hover) and (pointer: fine) {
    .settings-nav-item:hover {
        background: var(--md-sys-color-surface-variant);
    }
}

.settings-switch-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px var(--space-lg);
    min-height: 48px;
}

.switch-track {
    width: 48px;
    height: 28px;
    border-radius: 14px;
    cursor: pointer;
    position: relative;
    transition: background 0.3s ease;
    flex-shrink: 0;
}

.switch-track.on {
    background: var(--md-sys-color-primary);
}

.switch-track.off {
    background: var(--md-sys-color-outline);
}

.switch-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: white;
    position: absolute;
    top: 2px;
    transition: left 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.switch-thumb.on {
    left: 22px;
}

.switch-thumb.off {
    left: 2px;
}

.settings-action-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px var(--space-lg);
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    color: var(--md-sys-color-primary);
    transition: background var(--transition-base);
    user-select: none;
    min-height: 48px;
}

.settings-action-item.danger {
    color: var(--md-sys-color-error);
}

.settings-divider {
    height: 0.5px;
    background: var(--md-sys-color-outline-variant);
    margin: 0 var(--space-lg);
    opacity: 0.3;
}

.settings-version {
    text-align: center;
    padding: var(--space-lg);
    font-size: 13px;
    color: var(--md-sys-color-on-surface);
    opacity: 0.5;
}

.profile-card {
    margin: 8px 14px 16px;
    background: var(--md-sys-color-surface);
    border-radius: var(--radius-xl);
    border: 0.5px solid var(--md-sys-color-outline-variant);
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: background var(--transition-theme);
}

.profile-avatar {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-lg);
    background: var(--md-sys-color-surface-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(93, 122, 94, 0.3);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform var(--transition-base);
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-avatar .avatar-placeholder {
    font-size: 48px;
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.5;
}

.profile-field {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 10px 8px;
    cursor: pointer;
    border-radius: var(--radius-xs);
    transition: background var(--transition-base);
    user-select: none;
    min-height: var(--touch-target);
}

.profile-field .field-value {
    flex: 1;
    font-size: 15px;
    color: var(--md-sys-color-on-surface);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.profile-field .field-value.muted {
    color: var(--md-sys-color-on-surface-variant);
    font-size: 14px;
}

.profile-field .field-edit-icon {
    font-size: 18px;
    color: var(--md-sys-color-primary);
    opacity: 0.5;
    flex-shrink: 0;
    margin-left: var(--space-sm);
    transition: opacity var(--transition-base);
}

@media (hover: hover) and (pointer: fine) {
    .profile-field:hover {
        background: var(--md-sys-color-surface-variant);
    }
}

.auth-container {
    width: 100%;
    max-width: 400px;
    margin: auto;
    padding: 32px 24px;
    background: var(--md-sys-color-surface);
    border-radius: var(--radius-2xl);
    max-height: 90vh;
    overflow-y: auto;
    animation: fadeInUp 0.3s ease;
    transition: background var(--transition-theme);
}

.auth-container h2 {
    font-size: 28px;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--space-sm);
    color: var(--md-sys-color-primary);
    letter-spacing: -0.02em;
}

.auth-subtitle {
    text-align: center;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: var(--space-2xl);
    font-size: 14px;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--radius-sm);
    font-size: 16px;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-theme), color var(--transition-theme);
    box-sizing: border-box;
}

.form-group input:focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
}

.btn {
    width: 100%;
    padding: 16px;
    border-radius: var(--radius-2xl);
    border: none;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: opacity var(--transition-base), background var(--transition-theme), transform 0.15s ease;
    user-select: none;
    min-height: 48px;
}

.btn:active {
    transform: scale(0.97);
}

.btn:focus-visible {
    outline: 2px solid var(--md-sys-color-on-primary);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.auth-link {
    text-align: center;
    margin-top: var(--space-xl);
    font-size: 14px;
    color: var(--md-sys-color-on-surface-variant);
}

.auth-link a {
    color: var(--md-sys-color-primary);
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.error-banner,
.success-banner {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-lg);
    font-size: 14px;
    word-break: break-word;
}

.error-banner {
    background: var(--md-sys-color-error-container);
    color: var(--md-sys-color-on-error-container);
}

.success-banner {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.password-input-wrapper {
    position: relative;
}

.password-input-wrapper input {
    padding-right: 44px;
    width: 100%;
    box-sizing: border-box;
}

.password-toggle-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 20px;
    border-radius: 50%;
    transition: background var(--transition-base), transform 0.15s ease;
    user-select: none;
}

.password-toggle-btn:active {
    transform: translateY(-50%) scale(0.9);
}

.search-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-lg);
    width: 100%;
}

.search-results-count {
    font-size: 15px;
    font-weight: 500;
    color: var(--md-sys-color-primary);
}

.shared-tabs {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--md-sys-color-surface-container);
    border-radius: var(--radius-sm);
    padding: 2px;
    margin: 0 12px 4px;
}

.shared-tab {
    flex: 1;
    padding: 8px 12px;
    border-radius: 10px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    font-family: inherit;
    text-align: center;
    transition: all var(--transition-base);
    user-select: none;
    white-space: nowrap;
    min-height: var(--touch-target);
}

.shared-tab.active {
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    font-weight: 600;
}

.version-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.version-info {
    flex: 1;
    min-width: 0;
}

.version-date {
    font-size: 13px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
}

.version-meta {
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
    margin-top: 2px;
}

.version-actions {
    display: flex;
    gap: var(--space-sm);
}

.diff-container {
    font-family: 'Courier New', monospace;
    font-size: 12px;
    background: var(--md-sys-color-surface);
    border-radius: var(--radius-sm);
    padding: var(--space-lg);
    overflow-x: auto;
    max-height: 400px;
    word-break: break-all;
    transition: background var(--transition-theme);
}

.diff-line {
    white-space: pre-wrap;
    padding: 2px 4px;
}

.diff-line.removed {
    background: rgba(186, 26, 26, 0.2);
    color: var(--md-sys-color-error);
}

.diff-line.added {
    background: rgba(93, 122, 94, 0.2);
    color: var(--md-sys-color-primary);
}

.image-compare {
    position: relative;
    overflow: hidden;
    cursor: ew-resize;
}

.image-compare img {
    display: block;
    width: 100%;
    height: auto;
}

.image-compare .compare-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    overflow: hidden;
}

.image-compare .compare-overlay img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: left;
}

.compare-slider {
    position: absolute;
    top: 0;
    left: 50%;
    width: 4px;
    height: 100%;
    background: white;
    transform: translateX(-50%);
    cursor: ew-resize;
    box-shadow: 0 0 8px rgba(0,0,0,0.5);
}

.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    border-radius: var(--radius-xl);
    background: var(--md-sys-color-on-surface);
    color: var(--md-sys-color-surface);
    font-size: 14px;
    z-index: 10001;
    white-space: nowrap;
    max-width: 90vw;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    animation: fadeInUp 0.25s ease;
}

@media (max-width: 1023px) {
    .toast {
        bottom: calc(var(--bottom-nav-height) + 24px);
    }
}

.toast-undo-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    font-weight: 600;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 13px;
    transition: background var(--transition-base);
    white-space: nowrap;
    min-height: 36px;
}

.toast-undo-btn:hover {
    background: rgba(255,255,255,0.3);
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--md-sys-color-surface-variant);
    border-top-color: var(--md-sys-color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.empty-state,
.search-placeholder,
.section-placeholder {
    text-align: center;
    padding: 60px 20px;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.empty-state .empty-icon,
.search-placeholder .ph-icon,
.section-placeholder .ph-icon {
    font-size: 80px;
    color: var(--md-sys-color-on-surface);
    opacity: 0.3;
    margin-bottom: var(--space-lg);
}

.empty-state h3,
.search-placeholder .ph-text,
.section-placeholder .ph-title {
    font-size: 20px;
    color: var(--md-sys-color-on-surface);
    opacity: 0.6;
    letter-spacing: -0.01em;
    word-break: break-word;
}

.empty-state p,
.search-placeholder .ph-text,
.section-placeholder .ph-msg {
    font-size: 14px;
    color: var(--md-sys-color-on-surface);
    opacity: 0.5;
    line-height: 1.5;
    word-break: break-word;
    max-width: 400px;
}

.empty-state-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    flex-wrap: wrap;
    justify-content: center;
}

.empty-state-btn {
    padding: 12px 24px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--md-sys-color-outline);
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    min-height: 48px;
}

.empty-state-btn:hover {
    background: var(--md-sys-color-primary-container);
    border-color: var(--md-sys-color-primary);
}

.drag-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(93, 122, 94, 0.1);
    border: 3px dashed var(--md-sys-color-primary);
    z-index: 1000;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.15s ease;
}

.drag-overlay-content {
    background: var(--md-sys-color-surface-container-highest);
    padding: 20px 32px;
    border-radius: var(--radius-2xl);
    font-size: 18px;
    font-weight: 500;
    color: var(--md-sys-color-primary);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.skeleton-card {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    gap: 10px;
    background: var(--md-sys-color-surface-container);
    border-radius: 14px;
    animation: pulse 1.2s ease-in-out infinite;
    min-height: 56px;
}

.skeleton-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--md-sys-color-surface-variant);
}

.skeleton-text {
    flex: 1;
    min-width: 0;
}

.skeleton-line {
    height: 14px;
    background: var(--md-sys-color-surface-variant);
    border-radius: 8px;
    margin-bottom: 8px;
}

.skeleton-line.short {
    width: 60%;
    height: 10px;
}

.skeleton-card-grid {
    padding: 14px 10px;
    border-radius: 14px;
    background: var(--md-sys-color-surface-container);
    animation: pulse 1.2s ease-in-out infinite;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.skeleton-icon-grid {
    width: 76px;
    height: 76px;
    border-radius: 14px;
    background: var(--md-sys-color-surface-variant);
}

.skeleton-line-grid {
    height: 12px;
    background: var(--md-sys-color-surface-variant);
    border-radius: 6px;
    width: 70%;
}

.skeleton-line-grid.short {
    width: 45%;
    height: 9px;
}

.scroll-to-top {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 150;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    transition: opacity 0.3s ease, box-shadow var(--transition-base), background var(--transition-theme), transform 0.15s ease;
    opacity: 0;
    pointer-events: none;
}

.scroll-to-top:active {
    transform: scale(0.9);
}

.scroll-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.scroll-to-top:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}

@media (max-width: 1023px) {
    .scroll-to-top {
        bottom: calc(var(--bottom-nav-height) + 24px);
        right: 16px;
        width: 48px;
        height: 48px;
    }
}

.upload-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    z-index: 240;
    max-height: 60vh;
    overflow-y: auto;
    transition: transform 0.3s ease, background var(--transition-theme);
}

@media (max-width: 1023px) {
    .upload-panel {
        bottom: var(--bottom-nav-height);
        border-radius: var(--radius-md) var(--radius-md) 0 0;
    }
}

.upload-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    position: sticky;
    top: 0;
    background: var(--md-sys-color-surface-container-highest);
    z-index: 1;
    transition: background var(--transition-theme);
}

.upload-panel-header h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
}

.upload-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    min-height: 56px;
}

.upload-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--md-sys-color-surface-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.upload-item-info {
    flex: 1;
    min-width: 0;
}

.upload-item-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.upload-item-progress {
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: var(--md-sys-color-surface-variant);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--md-sys-color-primary);
    border-radius: 2px;
    transition: width 0.2s ease;
    width: 0%;
}

.upload-item-stats {
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
    font-family: monospace;
}

.upload-item.error .upload-item-name {
    color: var(--md-sys-color-error);
}

.inline-viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
    background: var(--md-sys-color-surface);
    border-radius: 0;
    margin: 0;
    animation: fadeIn 0.2s ease;
    transition: background var(--transition-theme);
}

.inline-viewer-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px var(--space-md);
    background: var(--md-sys-color-surface-container-high);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    flex-shrink: 0;
    min-height: 44px;
    flex-wrap: nowrap;
    overflow-x: auto;
    transition: background var(--transition-theme);
}

.inline-viewer-title {
    flex: 1;
    font-weight: 500;
    font-size: 14px;
    color: var(--md-sys-color-on-surface);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.inline-viewer-content {
    flex: 1;
    overflow: auto;
    min-height: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
    word-break: break-word;
    -webkit-overflow-scrolling: touch;
}

.inline-viewer-content::-webkit-scrollbar {
    width: 6px;
}

.inline-viewer-content::-webkit-scrollbar-track {
    background: transparent;
}

.inline-viewer-content::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: 6px;
}

.inline-viewer-content.text-content {
    padding: var(--space-lg);
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.7;
    white-space: pre-wrap;
    background: var(--md-sys-color-surface-container-lowest);
    color: var(--md-sys-color-on-surface);
    transition: background var(--transition-theme), color var(--transition-theme);
}

.inline-viewer-content.code-content {
    padding: var(--space-lg);
    background: #1E1E1E;
    color: #D4D4D4;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.7;
    white-space: pre-wrap;
}

.pdf-system-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px var(--space-md);
    background: var(--md-sys-color-surface-container-high);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    flex-shrink: 0;
    flex-wrap: nowrap;
    position: sticky;
    top: 0;
    z-index: 5;
    min-height: 44px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    transition: background var(--transition-theme);
}

.pdf-pages-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    width: 100%;
    padding: var(--space-lg);
    overflow: auto;
    -webkit-overflow-scrolling: touch;
}

.pdf-search-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px var(--space-md);
    background: var(--md-sys-color-surface-container);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    transition: background var(--transition-theme);
}

.pdf-search-bar input {
    flex: 1;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 13px;
    font-family: inherit;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    outline: none;
    height: 28px;
    min-width: 0;
    transition: border-color var(--transition-base), background var(--transition-theme), color var(--transition-theme);
}

.pdf-search-bar input:focus {
    border-color: var(--md-sys-color-primary);
}

.image-viewer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.92);
    z-index: 700;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: fadeIn 0.3s ease;
}

.image-viewer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    padding-top: env(safe-area-inset-top, 8px);
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.image-viewer-toolbar.hidden {
    transform: translateY(-100%);
    opacity: 0;
}

.image-viewer-file-name {
    color: white;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    text-align: center;
    padding: 0 12px;
}

.image-viewer-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    touch-action: none;
}

.image-viewer-img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    user-select: none;
    transition: transform 0.1s ease;
    cursor: grab;
}

.image-viewer-img.dragging {
    cursor: grabbing;
    transition: none;
}

.image-viewer-close {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    border: none;
    cursor: pointer;
    color: white;
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-base), transform 0.15s ease;
    flex-shrink: 0;
}

.image-viewer-close:active {
    transform: scale(0.9);
}

.image-viewer-close:hover {
    background: rgba(255,255,255,0.25);
}

.image-viewer-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    border: none;
    cursor: pointer;
    color: white;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-base), opacity var(--transition-base), transform 0.15s ease;
    z-index: 5;
}

.image-viewer-nav:active {
    transform: translateY(-50%) scale(0.9);
}

.image-viewer-nav:hover {
    background: rgba(255,255,255,0.25);
}

.image-viewer-nav.prev {
    left: 16px;
}

.image-viewer-nav.next {
    right: 16px;
}

.image-viewer-counter {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    font-weight: 500;
    background: rgba(0,0,0,0.4);
    padding: 6px 16px;
    border-radius: var(--radius-md);
    z-index: 5;
}

.image-viewer-actions {
    position: absolute;
    bottom: 24px;
    right: 24px;
    display: flex;
    gap: var(--space-sm);
    z-index: 5;
}

@media (max-width: 1023px) {
    .image-viewer-actions {
        bottom: 80px;
        right: 12px;
        gap: var(--space-xs);
    }
}

.image-viewer-action-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    border: none;
    cursor: pointer;
    color: white;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-base), transform 0.15s ease;
}

.image-viewer-action-btn:active {
    transform: scale(0.9);
}

.image-viewer-action-btn:hover {
    background: rgba(255,255,255,0.25);
}

.image-viewer-spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255,255,255,0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    z-index: 3;
}

.media-viewer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.95);
    z-index: 700;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: fadeIn 0.3s ease;
}

.media-viewer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    padding-top: env(safe-area-inset-top, 8px);
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.media-viewer-toolbar.hidden {
    transform: translateY(-100%);
    opacity: 0;
}

.media-viewer-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
}

.media-viewer-content video {
    max-width: 100%;
    max-height: 100%;
    outline: none;
}

.media-viewer-content audio {
    width: 80%;
    max-width: 500px;
}

.archive-viewer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-sys-color-surface-container-lowest);
    z-index: 800;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: fadeIn 0.3s ease;
    transition: background var(--transition-theme);
}

.archive-viewer-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px var(--space-md);
    background: var(--md-sys-color-surface-container);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    flex-shrink: 0;
    min-height: 52px;
    transition: background var(--transition-theme);
}

.archive-viewer-content {
    flex: 1;
    overflow: auto;
    padding: var(--space-lg);
    scrollbar-width: thin;
    scrollbar-color: var(--md-sys-color-outline-variant) transparent;
    -webkit-overflow-scrolling: touch;
}

.archive-viewer-content::-webkit-scrollbar {
    width: 6px;
}

.archive-viewer-content::-webkit-scrollbar-track {
    background: transparent;
}

.archive-viewer-content::-webkit-scrollbar-thumb {
    background: var(--md-sys-color-outline-variant);
    border-radius: 6px;
}

.archive-file-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 10px var(--space-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-base);
    min-height: var(--touch-target);
}

.archive-file-item:hover {
    background: var(--md-sys-color-surface-variant);
}

.archive-file-icon {
    font-size: 20px;
    color: var(--md-sys-color-primary);
    flex-shrink: 0;
}

.tool-dialog {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-2xl);
    padding: 0;
    width: 94%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    margin: auto;
    animation: fadeInUp 0.2s ease;
    transition: background var(--transition-theme);
}

.tool-dialog.wide {
    max-width: 800px;
}

.tool-dialog-body {
    padding: 0 var(--space-lg) var(--space-lg);
}

.panel-wide {
    max-width: 680px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-sm);
    margin-bottom: 10px;
}

.stat-card {
    background: var(--md-sys-color-surface);
    border-radius: var(--radius-md);
    padding: 14px;
    text-align: center;
    border: 1px solid var(--md-sys-color-outline-variant);
    transition: background var(--transition-theme);
}

.stat-card .stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--md-sys-color-primary);
    letter-spacing: -0.02em;
}

.stat-card .stat-label {
    font-size: 11px;
    color: var(--md-sys-color-on-surface-variant);
    margin-top: 2px;
}

.usage-bar-container {
    margin: 4px 0 2px;
}

.usage-bar {
    height: 5px;
    background: var(--md-sys-color-surface-variant);
    border-radius: 3px;
    overflow: hidden;
}

.usage-fill {
    height: 100%;
    background: var(--md-sys-color-primary);
    border-radius: 3px;
    transition: width 0.6s ease;
}

.usage-label {
    font-size: 10px;
    color: var(--md-sys-color-on-surface-variant);
    margin-top: 2px;
    text-align: right;
}

.type-chart {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.type-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.type-row .type-color {
    width: 8px;
    height: 8px;
    border-radius: 2px;
    flex-shrink: 0;
}

.type-row .type-name {
    flex: 1;
    font-size: 11px;
    color: var(--md-sys-color-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.type-row .type-size {
    font-size: 11px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    flex-shrink: 0;
}

.recent-activity {
    margin-top: var(--space-xs);
    max-height: 120px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 0;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    font-size: 11px;
    color: var(--md-sys-color-on-surface);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--md-sys-color-primary);
    flex-shrink: 0;
}

.activity-time {
    margin-left: auto;
    font-size: 9px;
    color: var(--md-sys-color-outline);
    flex-shrink: 0;
}

.workspace-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-sm);
}

.workspace-card {
    background: var(--md-sys-color-surface);
    border-radius: var(--radius-md);
    padding: 14px;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.workspace-card:hover {
    border-color: var(--md-sys-color-outline-variant);
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.workspace-card.active {
    border-color: var(--md-sys-color-primary);
    background: var(--md-sys-color-primary-container);
}

.workspace-card .ws-icon {
    font-size: 26px;
    margin-bottom: var(--space-xs);
}

.workspace-card .ws-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.workspace-card .ws-active-badge {
    font-size: 9px;
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    padding: 2px 7px;
    border-radius: 8px;
    font-weight: 600;
}

.workspace-card .ws-meta {
    font-size: 10px;
    color: var(--md-sys-color-on-surface-variant);
}

.calc-overlay-root {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-sys-color-scrim);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.calc-panel {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-2xl);
    width: 340px;
    max-width: 94vw;
    height: 520px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.2s ease;
    transition: background var(--transition-theme);
}

.calc-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    position: relative;
    min-height: 44px;
    flex-shrink: 0;
}

.calc-body {
    padding: 0 12px 12px;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.calc-display {
    background: var(--md-sys-color-surface-container);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    margin-bottom: 8px;
    text-align: right;
    font-size: 18px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    line-height: 1.2;
    overflow-x: auto;
    flex-shrink: 0;
    transition: background var(--transition-theme);
}

.calc-display-input {
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
    text-align: right;
    font-size: 18px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    outline: none;
    caret-color: var(--md-sys-color-primary);
    padding: 0;
}

.calc-bit-display {
    background: var(--md-sys-color-surface-container);
    border-radius: 10px;
    padding: 5px 8px;
    margin-bottom: 8px;
    font-family: 'Courier New', monospace;
    font-size: 8px;
    color: var(--md-sys-color-on-surface-variant);
    text-align: right;
    line-height: 1.2;
    min-height: 52px;
    flex-shrink: 0;
    transition: background var(--transition-theme);
}

.calc-bit-display span {
    color: var(--md-sys-color-on-surface);
    font-weight: 600;
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    flex: 1;
    min-height: 0;
    align-content: stretch;
}

.calc-btn {
    width: 100%;
    height: 100%;
    min-height: 0;
    border-radius: 50%;
    border: none;
    font-size: 20px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    padding: 0;
    white-space: nowrap;
    transition: background var(--transition-base), transform 0.1s ease;
    user-select: none;
}

.calc-btn:active {
    transform: scale(0.9);
}

.calc-btn:hover {
    background: var(--md-sys-color-surface-variant);
}

.calc-btn.operator {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    font-weight: 600;
    font-size: 22px;
}

.calc-btn.equals {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    font-weight: 600;
    font-size: 22px;
}

.calc-btn.clear {
    color: var(--md-sys-color-error);
}

.calc-btn.func {
    font-size: 12px;
    background: var(--md-sys-color-surface-container-highest);
}

.calc-btn.span2 {
    grid-column: span 2;
    border-radius: var(--radius-2xl);
}

.calc-btn.bit-digit {
    font-family: 'Courier New', monospace;
    font-size: 18px;
    font-weight: 600;
}

.calc-mode-btn {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--md-sys-color-surface-variant);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 16px;
    z-index: 2;
    transition: background var(--transition-base);
}

.calc-mode-menu {
    position: absolute;
    top: 38px;
    left: 10px;
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 20px rgba(0,0,0,0.2);
    z-index: 20;
    min-width: 140px;
    overflow: hidden;
    animation: fadeInDown 0.15s ease;
}

.calc-mode-item {
    padding: 10px 14px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    white-space: nowrap;
    min-height: 36px;
    display: flex;
    align-items: center;
    transition: background var(--transition-base);
}

.calc-mode-item:hover {
    background: var(--md-sys-color-surface-variant);
}

.calc-mode-item.active {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.cal-root {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-sys-color-scrim);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.cal-panel {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-2xl);
    width: 460px;
    max-width: 96vw;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.2s ease;
    transition: background var(--transition-theme);
}

.cal-hdr {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 16px;
    position: relative;
    min-height: 56px;
    flex-shrink: 0;
}

.cal-hdr-close {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--md-sys-color-surface-variant);
    border: 2px solid transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
    font-size: 20px;
    transition: background var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), transform 0.15s ease;
}

.cal-hdr-close:active {
    transform: translateY(-50%) scale(0.9);
}

.cal-hdr-close:focus-visible {
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
    .cal-hdr-close:hover {
        background: var(--md-sys-color-surface-container-highest);
        box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
        border-color: var(--md-sys-color-primary);
    }
}

.cal-body {
    padding: 0 12px 10px;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.cal-dr-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 100%;
    padding: 6px 10px;
    margin-bottom: 6px;
    border-radius: 10px;
    border: 1px solid var(--md-sys-color-outline-variant);
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-primary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    flex-shrink: 0;
    transition: background var(--transition-base);
    min-height: 40px;
}

.cal-dr-btn:hover {
    background: var(--md-sys-color-primary-container);
    border-color: var(--md-sys-color-primary);
}

.cal-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: 6px;
    flex-shrink: 0;
}

.cal-nav .cal-month-label {
    flex: 1;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.cal-nav-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface);
    flex-shrink: 0;
    transition: background var(--transition-base), transform 0.15s ease;
}

.cal-nav-btn:active {
    transform: scale(0.9);
}

.cal-nav-btn:hover {
    background: var(--md-sys-color-surface-variant);
}

.cal-today-btn {
    padding: 4px 8px;
    border-radius: 8px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 11px;
    font-weight: 500;
    color: var(--md-sys-color-primary);
    font-family: inherit;
    flex-shrink: 0;
    white-space: nowrap;
    min-height: 32px;
    transition: background var(--transition-base);
}

.cal-today-btn:hover {
    background: var(--md-sys-color-surface-variant);
}

.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: repeat(7, 1fr);
    text-align: center;
    flex: 1;
    min-height: 0;
}

.cal-grid .cal-dh {
    font-size: 9px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    opacity: 0.6;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cal-grid .cal-dc {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    font-weight: 500;
    width: 100%;
    height: 100%;
    transition: background var(--transition-base), transform 0.1s ease;
}

.cal-grid .cal-dc:active {
    transform: scale(0.9);
}

.cal-grid .cal-dc:hover {
    background: var(--md-sys-color-surface-variant);
}

.cal-grid .cal-dc.cal-today {
    background: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    font-weight: 700;
}

.cal-grid .cal-dc.cal-sel {
    background: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
}

.cal-grid .cal-dc.cal-om {
    color: var(--md-sys-color-outline);
    opacity: 0.35;
}

.cal-dr-ext {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-lg);
    padding: 18px;
    width: 360px;
    min-width: 360px;
    max-width: 360px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    display: none;
    flex-shrink: 0;
    margin-left: 14px;
    flex-direction: column;
    animation: fadeIn 0.2s ease;
    transition: background var(--transition-theme);
}

.cal-dr-ext.cal-visible {
    display: flex;
}

@media (max-width: 1023px) {
    .cal-dr-ext {
        width: 92vw;
        min-width: 92vw;
        max-width: 92vw;
        margin-left: 0;
        margin-top: 12px;
    }
}

.cal-dr-ext .cal-dr-inner {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.cal-dr-ext .cal-dr-scroll {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.cal-dr-ext h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    text-align: center;
    margin-bottom: 14px;
    flex-shrink: 0;
}

.cal-dr-ext label {
    font-size: 11px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface-variant);
    display: block;
    margin-bottom: 3px;
}

.cal-dr-ext .cal-date-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.cal-dr-ext .cal-date-input-wrapper input[type="date"] {
    width: 100%;
    padding: 9px 34px 9px 10px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 8px;
    font-size: 13px;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-base), background var(--transition-theme), color var(--transition-theme);
}

.cal-dr-ext .cal-date-input-wrapper input[type="date"]:focus {
    border-color: var(--md-sys-color-primary);
}

.cal-dr-result {
    font-size: 14px;
    font-weight: 600;
    color: var(--md-sys-color-on-primary-container);
    text-align: center;
    padding: var(--space-sm);
    background: var(--md-sys-color-primary-container);
    border-radius: 10px;
    margin-top: var(--space-sm);
}

.notes-toolbar {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.notes-list {
    display: flex;
    flex-direction: column;
    gap: 3px;
    max-height: 300px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.note-card {
    background: var(--md-sys-color-surface);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    min-height: 56px;
}

.note-card:hover {
    border-color: var(--md-sys-color-outline-variant);
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.note-card .note-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--md-sys-color-on-surface);
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.note-card .note-preview {
    font-size: 10px;
    color: var(--md-sys-color-on-surface-variant);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.note-card .note-date {
    font-size: 9px;
    color: var(--md-sys-color-outline);
    margin-top: 2px;
}

.note-editor textarea {
    width: 100%;
    min-height: 140px;
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--radius-sm);
    padding: 10px;
    font-family: inherit;
    font-size: 13px;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    box-sizing: border-box;
}

.note-editor textarea:focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
}

.support-textarea {
    width: 100%;
    min-height: 140px;
    border: 1px solid var(--md-sys-color-outline);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-size: 16px;
    background: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    font-family: inherit;
    outline: none;
    resize: vertical;
    transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-theme), color var(--transition-theme);
    margin-bottom: var(--space-lg);
    box-sizing: border-box;
}

.support-textarea:focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
}

.support-description {
    font-size: 14px;
    color: var(--md-sys-color-on-surface-variant);
    text-align: center;
    margin-bottom: var(--space-xl);
    line-height: 1.6;
    padding: 0 8px;
    word-break: break-word;
}

.notification-toast-container {
    position: fixed;
    top: 80px;
    right: 16px;
    z-index: 1050;
    max-width: 360px;
    width: calc(100% - 32px);
}

.notification-toast {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    padding: 12px 16px;
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transition: transform var(--transition-base), opacity var(--transition-base), background var(--transition-theme);
}

.notification-toast:hover {
    transform: translateY(-2px);
}

.notification-toast .notif-icon {
    font-size: 24px;
    color: var(--md-sys-color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.notification-toast .notif-content {
    flex: 1;
    min-width: 0;
}

.notification-toast .notif-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
}

.notification-toast .notif-body {
    font-size: 12px;
    color: var(--md-sys-color-on-surface-variant);
}

.notification-toast .notif-close {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--md-sys-color-on-surface-variant);
}

.label-preset-colors {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 0;
    justify-content: center;
}

.label-preset-color {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid transparent;
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transform 0.15s ease;
}

.label-preset-color:active {
    transform: scale(0.9);
}

.label-preset-color:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.label-preset-color.selected {
    border-color: var(--md-sys-color-on-surface);
    box-shadow: 0 0 0 3px var(--md-sys-color-primary-container);
}

.label-clear-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px dashed var(--md-sys-color-outline);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base), transform 0.15s ease;
}

.label-clear-btn:active {
    transform: scale(0.9);
}

.label-clear-btn:hover {
    background: var(--md-sys-color-surface-variant);
    border-color: var(--md-sys-color-error);
}

.label-custom-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: 12px 16px;
    border-radius: 14px;
    border: 1.5px dashed var(--md-sys-color-outline-variant);
    background: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-base);
    margin-top: var(--space-sm);
    min-height: 48px;
}

.label-custom-btn:hover {
    background: var(--md-sys-color-primary-container);
    border-color: var(--md-sys-color-primary);
}

.color-palette-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--md-sys-color-scrim);
    z-index: 650;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.color-palette-panel {
    background: var(--md-sys-color-surface-container-highest);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    width: 90%;
    max-width: 360px;
    max-height: 90vh;
    overflow-y: auto;
    margin: auto;
    animation: fadeInUp 0.2s ease;
    transition: background var(--transition-theme);
}

.color-palette-panel h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--md-sys-color-on-surface);
    text-align: center;
    margin-bottom: var(--space-lg);
}

.color-canvas-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: crosshair;
    margin-bottom: var(--space-lg);
}

.color-canvas-wrapper canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.color-preview-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.color-preview-swatch {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--md-sys-color-outline-variant);
    flex-shrink: 0;
}

.color-preview-value {
    flex: 1;
    font-size: 16px;
    font-family: 'Courier New', monospace;
    color: var(--md-sys-color-on-surface);
    overflow: hidden;
    text-overflow: ellipsis;
}

.color-palette-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    justify-content: flex-end;
}

.folder-tree-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 10px var(--space-md);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
    user-select: none;
    min-height: var(--touch-target);
}

.folder-tree-item:hover {
    background: var(--md-sys-color-surface-variant);
}

.folder-tree-item .tree-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--md-sys-color-outline);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--md-sys-color-surface);
    transition: all var(--transition-base);
    cursor: pointer;
    flex-shrink: 0;
}

.folder-tree-item .tree-checkbox.checked {
    background: var(--md-sys-color-primary);
    border-color: var(--md-sys-color-primary);
}

.folder-tree-item .tree-checkbox.checked::after {
    content: '\2713';
    color: white;
    font-size: 12px;
    font-weight: bold;
    font-family: inherit;
}

.tree-children {
    margin-left: 32px;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@media (max-width: 480px) {
    .file-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .file-card-grid {
        min-height: 110px;
        padding: 8px 4px;
        gap: 4px;
    }

    .grid-icon-box {
        max-width: 64px;
    }

    .grid-icon-placeholder {
        font-size: 28px;
    }

    .grid-file-name {
        font-size: 11px;
    }

    .grid-file-size {
        font-size: 9px;
    }

    .calc-panel {
        width: 92vw;
        height: 480px;
    }
}

@media (max-width: 600px) {
    .file-list-header .header-col-date {
        width: 90px;
    }

    .file-list-header .header-col-type {
        width: 80px;
    }

    .file-list-header .header-col-size {
        width: 70px;
    }

    .file-list-header .header-col-actions {
        width: 40px;
    }

    .file-list-header .header-col {
        font-size: 10px;
        padding: 6px;
    }
}

@media (max-width: 1023px) {
    .top-bar-content {
        padding: 4px 10px;
        gap: 4px;
        min-height: 52px;
    }

    .breadcrumbs-row-container {
        padding: 4px 8px;
        margin: 4px 4px 2px;
        gap: 4px;
    }

    .breadcrumb-item {
        padding: 6px 12px;
        font-size: 12px;
        gap: 3px;
        max-width: 120px;
    }

    .search-input-wrapper {
        height: 44px;
        padding: 4px 6px 4px 10px;
    }

    .search-input-wrapper input {
        font-size: 15px;
        padding: 6px 4px;
    }

    .sort-col {
        font-size: 12px;
        padding: 6px 8px;
    }

    .sort-col.header-col-date,
    .sort-col.header-col-size {
        display: none;
    }

    .sections-row {
        display: none;
    }

    .section-add-btn {
        display: none;
    }

    .dialog-overlay {
        padding: var(--space-lg);
    }

    .dialog {
        border-radius: var(--radius-lg);
        max-height: 80vh;
        padding: var(--space-xl);
    }

    .fab-menu {
        width: 260px;
    }

    .upload-item-actions button {
        width: 36px;
        height: 36px;
    }
}

@media (min-width: 1024px) {
    .sections-row {
        display: none;
    }

    .section-add-btn {
        display: none;
    }

    .bottom-nav {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}



.has-error,
input.has-error,
select.has-error,
textarea.has-error {
    border-color: #B3261E !important;
    box-shadow: 0 0 0 1px #B3261E;
}

.field-error {
    color: #B3261E;
    font-size: 12px;
    line-height: 1.4;
    margin-top: 4px;
    padding-left: 4px;
}



.pw-strength {
    margin-top: 8px;
    padding: 8px 10px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.03);
    font-size: 12px;
}

.pw-strength-bar {
    height: 4px;
    border-radius: 2px;
    transition: background-color 0.2s ease;
    margin-bottom: 6px;
}

.pw-strength-label {
    font-weight: 600;
    margin-bottom: 6px;
}

.pw-strength-rules {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 12px;
}

.pw-strength-rules li {
    color: #B3261E;
    font-size: 11px;
}

.pw-strength-rules li::before {
    content: '○ ';
}

.pw-strength-rules li.ok {
    color: #10B981;
}

.pw-strength-rules li.ok::before {
    content: '✓ ';
}




.btn:disabled,
.btn[disabled] {
    background: #ccc !important;
    color: #666 !important;
    cursor: not-allowed !important;
    opacity: 0.7;
    pointer-events: none;
}

.auth-form .btn:disabled,
#auth-submit-btn:disabled {
    background: #ccc !important;
    color: #666 !important;
}