:root {
    --bg-color: #f0f4f8;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #cbd5e1;
    --input-bg: #ffffff;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --focus-border: #64748b;
    --focus-ring: rgba(100, 116, 139, 0.4);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --success-color: #10b981;
    --transition: all 0.2s ease;
}

[data-theme="dark"] {
    --bg-color: #31353a;
    --card-bg: #26292d;
    --text-main: #f8fafc;
    --text-muted: #9ba1a6;
    --border-color: #4a5057;
    --input-bg: #1e2124;
    --primary: #60a5fa;
    --primary-hover: #93c5fd;
    --focus-border: #9ba1a6;
    --focus-ring: rgba(155, 161, 166, 0.4);
    --shadow-md: 0 8px 12px -3px rgb(0 0 0 / 0.3);
    --success-color: #34d399;
}

* {
    box-sizing: border-box;
    font-family: 'JetBrains Mono', monospace;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    padding: 1.5rem;
    margin: 0;
    transition: var(--transition);
    font-size: 16px;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
}

.theme-control {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-label {
    font-size: 0.9rem;
    font-weight: 500;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.theme-switch {
    position: relative;
    width: 50px;
    height: 28px;
    background-color: var(--border-color);
    border-radius: 999px;
    cursor: pointer;
    transition: var(--transition);
}

.theme-switch:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--focus-ring);
}

.toggle-thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background-color: white;
    border-radius: 50%;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

#darkModeToggle:checked + .theme-switch {
    background-color: var(--primary);
}

#darkModeToggle:checked + .theme-switch .toggle-thumb {
    transform: translateX(22px);
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.card-header h2 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    white-space: nowrap;
}

.card-header h2 svg {
    color: var(--primary);
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 500px;
    min-width: 250px;
}

.search-box svg {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

.search-box input {
    width: 100%;
    height: 38px;
    padding: 0.6rem 0.85rem 0.6rem 2.5rem;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    color: var(--text-main);
    outline: none;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--focus-ring);
}

.meta-count {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
    background-color: var(--input-bg);
    padding: 0.35rem 0.85rem;
    border-radius: 99px;
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.table-wrapper {
    width: 100%;
    overflow-x: auto;
}

.file-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    min-width: 800px;
}

.file-table th {
    padding: 1rem 1.5rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .file-table th {
    background-color: rgba(255, 255, 255, 0.02);
}

.file-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: color 0.2s ease;
}

.file-table th.sortable:hover {
    color: var(--text-main);
}

.sort-icon {
    width: 14px;
    height: 14px;
    margin-left: 0.25rem;
    vertical-align: middle;
    opacity: 0.3;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.file-table th.sortable.active .sort-icon {
    opacity: 1;
    color: var(--primary);
}

.file-table th.sortable.asc .sort-icon {
    transform: rotate(180deg);
}

.file-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.file-table tr:last-child td {
    border-bottom: none;
}

.file-row:hover {
    background-color: rgba(59, 130, 246, 0.04);
}

.file-name-cell {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-weight: 500;
    color: var(--text-main);
}

.file-name-cell svg {
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.file-name-text {
    word-break: break-all;
    overflow-wrap: anywhere;
    white-space: normal;
    line-height: 1.5;
}

.meta-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    white-space: nowrap;
}

.action-group {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.btn {
    height: 34px;
    padding: 0 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    outline: none;
    white-space: nowrap;
}

.btn-secondary {
    background-color: var(--input-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-secondary.copied {
    border-color: var(--success-color);
    color: var(--success-color);
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

#loading-hint {
    padding: 4rem;
    text-align: center;
    color: var(--text-muted);
    font-weight: 500;
    font-style: italic;
}

@media (max-width: 768px) {
    .card-header {
        flex-direction: column;
        align-items: stretch;
    }
    .search-box {
        max-width: 100%;
        order: 3;
    }
    .meta-count {
        align-self: flex-start;
    }
}