/* =====================================================================
   FileVault — Clean Minimal Business Luxury
   ===================================================================== */

:root {
    --color-bg: #faf9f6;
    --color-surface: #ffffff;
    --color-ink: #1c1c1a;
    --color-ink-soft: #5c5b56;
    --color-border: #e6e3db;
    --color-accent: #1f3a34;        /* deep forest green */
    --color-accent-soft: #e8efec;
    --color-gold: #a9812f;          /* muted gold, used very sparingly */
    --color-danger: #9c3b3b;
    --color-warning: #a9812f;
    --color-success: #2f6b4f;

    --radius-sm: 6px;
    --radius-md: 10px;
    --shadow-sm: 0 1px 3px rgba(28, 28, 26, 0.06);
    --shadow-md: 0 4px 16px rgba(28, 28, 26, 0.08);

    --font-heading: 'Georgia', 'Iowan Old Style', serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

    --nav-width: 240px;
    --bottom-nav-height: 64px;
}

/* Dark theme — applied when <html> has data-theme="dark" */
[data-theme="dark"] {
    --color-bg:          #0f0f0e;
    --color-surface:     #1a1a18;
    --color-ink:         #e8e6e0;
    --color-ink-soft:    #8a8880;
    --color-border:      #2e2e2b;
    --color-accent:      #4a9e82;
    --color-accent-soft: #1a2e28;
    --color-gold:        #c9a050;
    --color-danger:      #c06060;
    --color-warning:     #c9a050;
    --color-success:     #4a9e82;
    --shadow-sm:         0 1px 3px rgba(0,0,0,0.3);
    --shadow-md:         0 4px 16px rgba(0,0,0,0.4);
}

/* Smooth theme transition on all colour-bearing properties */
*, *::before, *::after {
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.15s ease;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-ink);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    letter-spacing: 0.01em;
    font-weight: 500;
    margin: 0;
}

a { color: inherit; text-decoration: none; }

/* ---------------------------------------------------------------------
   Auth pages
   --------------------------------------------------------------------- */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}
.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    padding: 40px 32px;
    width: 100%;
    max-width: 400px;
}
.brand { font-size: 1.6rem; text-align: center; }
.auth-subtitle { text-align: center; color: var(--color-ink-soft); margin: 6px 0 28px; font-size: 0.95rem; }
.auth-footer { text-align: center; margin-top: 20px; font-size: 0.9rem; color: var(--color-ink-soft); }
.auth-footer a { color: var(--color-accent); font-weight: 600; }

form label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-ink-soft);
    margin-bottom: 14px;
}
form input[type="text"], form input[type="email"], form input[type="password"], form input[type="number"] {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background: var(--color-bg);
    min-height: 44px;
}
form input:focus { outline: none; border-color: var(--color-accent); }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; margin: 0; }

/* ---------------------------------------------------------------------
   Buttons / chips / badges
   --------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 20px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
}
.btn-primary { background: var(--color-accent); color: #fff; }
.btn-secondary { background: var(--color-surface); border-color: var(--color-border); color: var(--color-ink); }
.btn-danger { background: transparent; border-color: var(--color-danger); color: var(--color-danger); }
.btn-tiny { min-height: 34px; padding: 0 12px; font-size: 0.8rem; }
.btn-sticky-upload { position: sticky; top: 12px; }

.chip {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-ink-soft);
    margin-right: 8px;
}
.chip-active { background: var(--color-accent-soft); border-color: var(--color-accent); color: var(--color-accent); font-weight: 600; }

.badge { padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-success { background: #e5f1ea; color: var(--color-success); }
.badge-warning { background: #f4ecd9; color: var(--color-warning); }

.alert { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: 0.9rem; }
.alert-error { background: #f7e9e9; color: var(--color-danger); border: 1px solid #e6c6c6; }
.alert-success { background: #e5f1ea; color: var(--color-success); border: 1px solid #c8e0d1; }

/* ---------------------------------------------------------------------
   App shell / navigation
   --------------------------------------------------------------------- */
.app-shell { min-height: 100vh; }

.sidebar {
    display: none;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--nav-width);
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    padding: 24px 16px;
    flex-direction: column;
}
.sidebar-brand { font-family: var(--font-heading); font-size: 1.3rem; padding: 0 12px 24px; }
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px; border-radius: var(--radius-sm);
    color: var(--color-ink-soft); font-size: 0.95rem; margin-bottom: 4px;
}
.nav-item.active, .nav-item:hover { background: var(--color-accent-soft); color: var(--color-accent); }
.sidebar-footer { margin-top: auto; }
.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.icon-lg { width: 32px; height: 32px; }

.bottom-nav {
    position: fixed; bottom: 0; left: 0; right: 0;
    height: var(--bottom-nav-height);
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    display: flex;
    z-index: 20;
}
.bottom-nav-item {
    flex: 1;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 2px; font-size: 0.7rem; color: var(--color-ink-soft);
    min-height: 44px;
}
.bottom-nav-item.active { color: var(--color-accent); }

.content {
    padding: 20px 16px calc(var(--bottom-nav-height) + 24px);
    max-width: 1000px;
    margin: 0 auto;
}
.content-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 20px; gap: 12px;
}
.content-header h1 { font-size: 1.4rem; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 60vw; }
.back-link { color: var(--color-ink-soft); font-size: 0.9rem; }

@media (min-width: 768px) {
    .sidebar { display: flex; }
    .bottom-nav { display: none; }
    .content { margin-left: var(--nav-width); padding: 32px 40px; max-width: 1100px; }
    .btn-sticky-upload { position: static; }
}

/* ---------------------------------------------------------------------
   Storage meter
   --------------------------------------------------------------------- */
.storage-meter { margin-bottom: 24px; }
.storage-meter-bar {
    height: 8px; border-radius: 999px; background: var(--color-accent-soft); overflow: hidden;
}
.storage-meter-fill { height: 100%; background: var(--color-accent); border-radius: 999px; }
.storage-meter-label { font-size: 0.8rem; color: var(--color-ink-soft); margin: 8px 0 0; }

/* ---------------------------------------------------------------------
   Files grid / list
   --------------------------------------------------------------------- */
.filter-row { display: flex; align-items: center; gap: 4px; margin-bottom: 16px; overflow-x: auto; padding-bottom: 4px; }
.view-toggle { margin-left: auto; background: none; border: 1px solid var(--color-border); border-radius: var(--radius-sm); min-width: 44px; min-height: 44px; }

.file-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
@media (min-width: 480px) { .file-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px) { .file-grid { grid-template-columns: repeat(4, 1fr); } }

.file-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 12px;
    display: block;
    position: relative;
}
.file-card-thumb {
    height: 90px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; letter-spacing: 0.05em; font-size: 0.75rem;
    background: var(--color-accent-soft); color: var(--color-accent);
    margin-bottom: 10px;
}
.file-type-videos { background: #f4ecd9; color: var(--color-gold); }
.file-type-zip { background: #efe7f2; color: #5b3d70; }
.file-type-other { background: #eee; color: #666; }
.file-card-name { font-size: 0.85rem; font-weight: 600; margin: 0 0 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-card-meta { font-size: 0.75rem; color: var(--color-ink-soft); margin: 0; }
.file-card-actions { position: absolute; top: 8px; right: 8px; display: flex; gap: 4px; }
.icon-btn { width: 32px; height: 32px; border-radius: 999px; border: none; background: rgba(255,255,255,0.9); }
.empty-state { color: var(--color-ink-soft); text-align: center; padding: 60px 0; grid-column: 1 / -1; }

/* ---------------------------------------------------------------------
   Upload
   --------------------------------------------------------------------- */
.upload-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    padding: 48px 20px;
    text-align: center;
    cursor: pointer;
    margin-bottom: 20px;
}
.upload-zone.dragover { border-color: var(--color-accent); background: var(--color-accent-soft); }
.upload-zone-sub { color: var(--color-ink-soft); font-size: 0.85rem; }
.upload-queue { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.upload-queue li {
    background: var(--color-surface); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); padding: 12px 14px;
}
.upload-queue .progress-bar { height: 6px; background: var(--color-accent-soft); border-radius: 999px; margin-top: 8px; overflow: hidden; }
.upload-queue .progress-fill { height: 100%; background: var(--color-accent); }
.upload-queue .upload-status { font-size: 0.75rem; color: var(--color-ink-soft); margin-top: 4px; }
.upload-queue .upload-status.error { color: var(--color-danger); }

/* ---------------------------------------------------------------------
   Viewer
   --------------------------------------------------------------------- */
.viewer { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 16px; margin-bottom: 20px; text-align: center; }
.viewer-image { max-width: 100%; border-radius: var(--radius-sm); }
.viewer-video { width: 100%; border-radius: var(--radius-sm); }
.viewer-text { text-align: left; white-space: pre-wrap; font-family: monospace; font-size: 0.85rem; max-height: 60vh; overflow: auto; }
.viewer-pdf { width: 100%; height: 70vh; border: none; }
.viewer-fallback { padding: 40px 0; color: var(--color-ink-soft); }
.file-meta p { font-size: 0.85rem; color: var(--color-ink-soft); margin: 4px 0; }

/* ---------------------------------------------------------------------
   Admin
   --------------------------------------------------------------------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 18px; }
.stat-value { display: block; font-family: var(--font-heading); font-size: 1.6rem; }
.stat-label { font-size: 0.8rem; color: var(--color-ink-soft); }
.admin-subnav { display: flex; gap: 16px; margin-bottom: 20px; }
.admin-subnav a { color: var(--color-accent); font-weight: 600; font-size: 0.9rem; }
.admin-panel { margin-bottom: 32px; }
.admin-panel h2 { font-size: 1.05rem; margin-bottom: 12px; }
.admin-search-form { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.admin-search-form input, .admin-search-form select { padding: 10px 12px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); min-height: 44px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--color-border); }
.data-table th { color: var(--color-ink-soft); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
.row-flagged { background: #fbf3e9; }
.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.action-cell { display: flex; gap: 6px; flex-wrap: wrap; }
.quota-input, .reason-input { width: 90px; padding: 6px 8px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }

/* =====================================================================
   Admin user cards (replaces the overflow-prone table on mobile)
   ===================================================================== */
.user-card-list { display: flex; flex-direction: column; gap: 12px; }

.user-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px;
}
.user-card-top {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}
.user-card-info {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.user-card-name {
    font-weight: 600;
    font-size: 0.95rem;
}
.user-card-meta {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--color-ink-soft);
    flex-wrap: wrap;
}
.user-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.badge-role {
    background: #eef0f7;
    color: #3a3d5c;
}
.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.btn-icon .icon {
    width: 14px;
    height: 14px;
}

@media (min-width: 768px) {
    .user-card-top { flex-direction: row; justify-content: space-between; align-items: center; margin-bottom: 14px; }
    .user-card-meta { gap: 24px; }
}

/* =====================================================================
   Flagged file card highlight
   ===================================================================== */
.file-card-flagged {
    border-color: #e0c080;
    background: #fdf8ee;
}

/* =====================================================================
   Admin pages — mobile-first responsive fixes
   ===================================================================== */
.admin-panel { overflow-x: auto; }

.data-table {
    min-width: 500px;   /* lets table scroll horizontally on small screens */
}

/* Wrap the table in a scrollable container on mobile */
.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}
.table-scroll .data-table {
    border: none;
    border-radius: 0;
}

.admin-search-form {
    flex-direction: column;
}
.admin-search-form input,
.admin-search-form select {
    width: 100%;
}
@media (min-width: 600px) {
    .admin-search-form { flex-direction: row; }
    .admin-search-form input { flex: 1; }
    .admin-search-form select { width: auto; }
}

/* Stat grid: single column on very small screens */
@media (max-width: 400px) {
    .stat-grid { grid-template-columns: 1fr 1fr; }
}

/* Admin subnav wraps nicely */
.admin-subnav { flex-wrap: wrap; }

/* =====================================================================
   Filter row — no hamburger, just horizontal scroll on mobile
   ===================================================================== */
.filter-row {
    display: flex;
    align-items: center;
    gap: 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
    scrollbar-width: none;
}
.filter-row::-webkit-scrollbar { display: none; }
/* Remove old view-toggle styles */
.view-toggle { display: none; }

/* =====================================================================
   Theme toggle button
   ===================================================================== */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-ink-soft);
    font-size: 0.9rem;
    cursor: pointer;
    margin-bottom: 8px;
}
.theme-toggle:hover {
    background: var(--color-accent-soft);
    color: var(--color-accent);
    border-color: var(--color-accent);
}
.theme-toggle .icon { flex-shrink: 0; }

/* Sun icon: visible in dark mode */
.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* Bottom nav theme button — compact icon-only */
.bottom-theme-toggle {
    flex: 0 0 52px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    font-size: 0.7rem;
    color: var(--color-ink-soft);
    background: none;
    border: none;
    cursor: pointer;
    min-height: 44px;
    padding: 0;
}
.bottom-theme-toggle:hover { color: var(--color-accent); }

/* Auth pages respect dark mode too */
[data-theme="dark"] .auth-card {
    background: var(--color-surface);
    border-color: var(--color-border);
}
[data-theme="dark"] form input[type="text"],
[data-theme="dark"] form input[type="email"],
[data-theme="dark"] form input[type="password"],
[data-theme="dark"] form input[type="number"] {
    background: var(--color-bg);
    color: var(--color-ink);
    border-color: var(--color-border);
}
[data-theme="dark"] .data-table {
    background: var(--color-surface);
}
[data-theme="dark"] .file-card {
    background: var(--color-surface);
}
[data-theme="dark"] .upload-zone {
    background: var(--color-surface);
}
[data-theme="dark"] .viewer {
    background: var(--color-surface);
}
[data-theme="dark"] .stat-card {
    background: var(--color-surface);
}
[data-theme="dark"] .user-card {
    background: var(--color-surface);
}
[data-theme="dark"] .sidebar {
    background: var(--color-surface);
}
[data-theme="dark"] .bottom-nav {
    background: var(--color-surface);
}
[data-theme="dark"] .file-card-flagged {
    background: #2a2010;
    border-color: #6a5010;
}
[data-theme="dark"] .row-flagged {
    background: #2a2010;
}
[data-theme="dark"] .alert-success {
    background: #0f2a1a;
    border-color: #1a4a2a;
    color: #4a9e82;
}
[data-theme="dark"] .alert-error {
    background: #2a0f0f;
    border-color: #4a1a1a;
    color: #c06060;
}
[data-theme="dark"] .badge-success { background: #0f2a1a; color: #4a9e82; }
[data-theme="dark"] .badge-warning { background: #2a1f0a; color: #c9a050; }
[data-theme="dark"] .badge-role    { background: #1a1a2e; color: #8888cc; }
