/**
 * AlfTube - Styles
 * Thème dark inspiré du logo : rouge (play), bleu (Alf), vert (alien)
 */

/* =========================================
   Variables & Reset
   ========================================= */
:root {
    --bg-dark:        #0e0e12;
    --bg-card:        #1a1a24;
    --bg-input:       #22222e;
    --bg-header:      #12121a;
    --text-primary:   #e8e8f0;
    --text-secondary: #8888a0;
    --text-muted:     #55556a;
    --accent-red:     #e63946;
    --accent-blue:    #3b82f6;
    --accent-green:   #4ade80;
    --border-color:   #2a2a3a;
    --radius:         10px;
    --radius-sm:      6px;
    --shadow:         0 4px 20px rgba(0,0,0,0.4);
    --transition:     0.2s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: #60a5fa; }

img { max-width: 100%; height: auto; }

/* =========================================
   Layout
   ========================================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

main.container {
    flex: 1;
    padding-top: 2rem;
    padding-bottom: 3rem;
}

/* =========================================
   Header
   ========================================= */
.site-header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.header-logo img {
    height: 40px;
    width: auto;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-link {
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}
.nav-link:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}
.nav-admin {
    color: var(--accent-green);
}
.nav-admin:hover {
    color: var(--accent-green);
}

/* Dropdown langue */
.lang-dropdown {
    position: relative;
}
.lang-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.6rem;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    color: var(--text-primary);
    transition: background var(--transition);
}
.lang-btn:hover { background: var(--bg-card); }

.lang-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    min-width: 140px;
    overflow: hidden;
    z-index: 200;
}
.lang-dropdown:hover .lang-menu { display: block; }

.lang-menu a {
    display: block;
    padding: 0.5rem 0.8rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: background var(--transition);
}
.lang-menu a:hover { background: var(--bg-input); color: var(--text-primary); }
.lang-menu a.active { color: var(--accent-blue); font-weight: 600; }

/* =========================================
   Footer
   ========================================= */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* =========================================
   Login Page
   ========================================= */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(ellipse at center, #1a1a2e 0%, var(--bg-dark) 70%);
}

.login-container {
    text-align: center;
    max-width: 360px;
    width: 100%;
    padding: 2rem;
}

.login-logo img {
    width: 200px;
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 4px 20px rgba(230, 57, 70, 0.2));
}

.login-container h1 {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.login-form input[type="password"] {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 1rem;
    text-align: center;
    outline: none;
    transition: border-color var(--transition);
}
.login-form input:focus {
    border-color: var(--accent-blue);
}

.login-form button {
    padding: 0.8rem;
    background: var(--accent-red);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}
.login-form button:hover {
    background: #d62839;
    transform: translateY(-1px);
}

.login-back {
    display: inline-block;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.lang-selector-float {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    gap: 0.5rem;
}
.lang-selector-float a {
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}
.lang-selector-float a.active { color: var(--accent-blue); }

/* =========================================
   Alerts
   ========================================= */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}
.alert-error {
    background: rgba(230, 57, 70, 0.15);
    border: 1px solid var(--accent-red);
    color: #ff6b7a;
}
.alert-success {
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

/* =========================================
   Catalog Toolbar
   ========================================= */
.catalog-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2rem;
}

.search-form {
    display: flex;
    gap: 0;
}
.search-form input {
    padding: 0.5rem 0.8rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    width: 220px;
}
.search-form input:focus { border-color: var(--accent-blue); }
.search-form button {
    padding: 0.5rem 0.7rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: none;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    cursor: pointer;
    font-size: 0.9rem;
}

.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}
.category-filter a {
    padding: 0.35rem 0.7rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}
.category-filter a:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}
.category-filter a.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

/* =========================================
   Video Grid
   ========================================= */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.video-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    color: var(--text-primary);
    display: block;
}
.video-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-red);
    box-shadow: 0 8px 30px rgba(230, 57, 70, 0.15);
    color: var(--text-primary);
}

.video-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #111;
    overflow: hidden;
}
.video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}
.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.thumb-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 3rem;
    color: var(--text-muted);
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.85);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.video-info {
    padding: 0.8rem 1rem;
}
.video-info h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    line-height: 1.3;
}
.video-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    background: var(--bg-input);
    padding: 2px 8px;
    border-radius: 10px;
    display: inline-block;
}
.video-subs {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 0.5rem;
}

/* =========================================
   Watch Page
   ========================================= */
.back-link {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.back-link:hover { color: var(--text-primary); }

.player-wrapper {
    max-width: 960px;
    margin: 0 auto 2rem;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}

/* Thème Video.js custom */
.vjs-theme-alftube .vjs-control-bar {
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
}
.vjs-theme-alftube .vjs-play-progress,
.vjs-theme-alftube .vjs-volume-level {
    background: var(--accent-red);
}
.vjs-theme-alftube .vjs-big-play-button {
    background: var(--accent-red);
    border: none;
    border-radius: 50%;
    width: 70px;
    height: 70px;
    line-height: 70px;
    font-size: 2rem;
    transition: transform var(--transition);
}
.vjs-theme-alftube:hover .vjs-big-play-button {
    transform: scale(1.1);
}
/* Menu sous-titres : s'ouvre vers la gauche pour ne pas déborder */
.vjs-theme-alftube .vjs-subs-caps-button .vjs-menu .vjs-menu-content,
.vjs-theme-alftube .vjs-subtitles-button .vjs-menu .vjs-menu-content {
    min-width: 10em;
}
.vjs-theme-alftube .vjs-subtitles-button .vjs-menu,
.vjs-theme-alftube .vjs-subs-caps-button .vjs-menu {
    right: 0;
    left: auto;
}

.video-details {
    max-width: 960px;
    margin: 0 auto;
}
.video-details h1 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}
.video-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}
.meta-category {
    background: var(--accent-blue);
    color: white;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 0.8rem;
}

.video-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.video-nav {
    max-width: 960px;
    margin: 2rem auto 0;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}
.video-nav a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.video-nav a:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* =========================================
   Admin
   ========================================= */
.admin-page h1 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}
.admin-page h2 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}
.admin-page h3 {
    font-size: 1rem;
    margin: 2rem 0 1rem;
    color: var(--text-secondary);
}

.admin-toolbar {
    margin-bottom: 1.5rem;
}

/* Boutons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition);
}
.btn:hover { border-color: var(--text-muted); color: var(--text-primary); }
.btn-primary {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}
.btn-primary:hover { background: #2563eb; color: white; }
.btn-danger { border-color: transparent; }
.btn-danger:hover { background: rgba(230,57,70,0.15); border-color: var(--accent-red); }
.btn-sm { padding: 0.25rem 0.5rem; font-size: 0.8rem; }

/* Table admin */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.admin-table th,
.admin-table td {
    padding: 0.6rem 0.8rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.admin-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.admin-table tr:hover td {
    background: rgba(255,255,255,0.02);
}
.admin-table .mono {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
}
.admin-table .actions {
    display: flex;
    gap: 0.3rem;
}

/* Formulaire admin */
.admin-form {
    max-width: 700px;
}
.form-group {
    margin-bottom: 1.2rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}
.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.55rem 0.8rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition);
    font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent-blue);
}
.form-group select {
    cursor: pointer;
}
.form-group input[type="file"] {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.form-checkbox label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}
.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-blue);
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.current-thumb {
    margin-bottom: 0.5rem;
}
.current-thumb img {
    width: 160px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

/* =========================================
   Empty State
   ========================================= */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}
.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 768px) {
    .header-inner { height: 50px; }
    .header-logo img { height: 32px; }
    
    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1rem;
    }
    
    .catalog-toolbar { flex-direction: column; }
    .search-form input { width: 100%; }
    
    .video-nav { flex-direction: column; }
    
    .admin-table { font-size: 0.75rem; }
    .admin-table th, .admin-table td { padding: 0.4rem; }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }
}