/* ==========================================================================
   Modern Video Portal Stylesheet
   Dark Slate / Indigo Theme - Clean, Responsive & Fast
   ========================================================================== */

:root {
    --bg-main: #0b0f19;
    --bg-surface: #111827;
    --bg-card: #1f2937;
    --bg-hover: #374151;
    --border: #374151;
    --border-focus: #60a5fa;
    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --text-subtle: #6b7280;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-glow: rgba(59, 130, 246, 0.25);
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #10b981;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.6);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-family);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--border-focus);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
    background-color: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-main);
    text-decoration: none;
}

.brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.35);
}

.brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    display: block;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-link {
    color: var(--text-muted);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-main);
    background-color: var(--bg-hover);
}

.user-badge-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 0.3rem 0.75rem;
    border-radius: 9999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
}

/* ==========================================================================
   Buttons & Badges
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.2;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.82rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 1.05rem;
}

.btn-primary {
    background-color: var(--accent);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-glow);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    color: #ffffff;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: #4b5563;
    color: #ffffff;
}

.btn-outline {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border);
}

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

.btn-danger {
    background-color: var(--danger);
    color: #fff;
}

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

.btn-disabled {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-subtle);
    cursor: not-allowed;
}

.btn-block {
    width: 100%;
}

.nav-btn {
    padding: 0.45rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 600;
}

.nav-btn-primary {
    background-color: var(--accent);
    color: #ffffff;
}

.nav-btn-outline {
    border: 1px solid var(--border);
    color: var(--text-muted);
}

.nav-btn-outline:hover {
    color: var(--text-main);
    background-color: var(--bg-hover);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-admin {
    background-color: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-viewer {
    background-color: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-lesson {
    background-color: rgba(99, 102, 241, 0.2);
    color: #a5b4fc;
}

.badge-duration {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

.badge-outline {
    border: 1px solid var(--border);
    color: var(--text-muted);
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */

.main-content {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ==========================================================================
   Catalog Page (index.php)
   ========================================================================== */

.catalog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.catalog-title-area h1 {
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.catalog-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

.catalog-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-input {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-main);
    border-radius: var(--radius-md);
    padding: 0.6rem 1rem 0.6rem 2.5rem;
    font-size: 0.9rem;
    width: 260px;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
    width: 300px;
}

.catalog-stats {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Video Card Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.75rem;
}

.video-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.video-card:hover {
    transform: translateY(-5px);
    border-color: rgba(96, 165, 250, 0.4);
    box-shadow: var(--shadow-lg);
}

.thumbnail-wrapper {
    position: relative;
    aspect-ratio: 16 / 9;
    background-color: #0f172a;
    overflow: hidden;
    display: block;
}

.thumbnail-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-card:hover .thumbnail-img {
    transform: scale(1.04);
}

.thumbnail-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.video-card:hover .thumbnail-overlay {
    opacity: 1;
}

.play-button-circle {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background-color: var(--accent);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.2s ease;
}

.video-card:hover .play-button-circle {
    transform: scale(1);
}

.lesson-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(6px);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.duration-badge {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: rgba(0, 0, 0, 0.8);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
}

.video-card-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.video-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.35;
    margin-bottom: 0.5rem;
}

.video-card-title a {
    color: var(--text-main);
}

.video-card-title a:hover {
    color: var(--accent);
}

.video-card-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.45;
    margin-bottom: 1rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    font-size: 0.8rem;
}

.upload-date {
    color: var(--text-subtle);
}

.card-watch-link {
    font-weight: 600;
    color: var(--accent);
}

.empty-catalog-state {
    text-align: center;
    padding: 5rem 1rem;
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--border);
}

.empty-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

/* ==========================================================================
   Watch Page (watch.php)
   ========================================================================== */

.watch-container {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 2rem;
    align-items: start;
}

.watch-main-column {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.player-wrapper {
    position: relative;
    background-color: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    aspect-ratio: 16 / 9;
}

.video-player {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    background-color: #000;
    outline: none;
}

.player-navigation-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.video-meta-box {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 1.75rem;
}

.meta-badge-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.current-video-title {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

.video-description h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
}

.desc-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #e2e8f0;
}

.protection-notice {
    margin-top: 1.5rem;
    padding: 0.85rem 1rem;
    background-color: rgba(59, 130, 246, 0.08);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--accent);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* Watch Sidebar */
.watch-sidebar {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    position: sticky;
    top: 5rem;
}

.sidebar-header {
    padding: 1.2rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.playlist-list {
    max-height: 550px;
    overflow-y: auto;
}

.playlist-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    text-decoration: none;
}

.playlist-item:hover {
    background-color: var(--bg-hover);
}

.playlist-item.active {
    background-color: rgba(59, 130, 246, 0.15);
    border-left: 3px solid var(--accent);
}

.playlist-thumb {
    width: 90px;
    height: 52px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
    background-color: #0f172a;
}

.playlist-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.playing-indicator {
    position: absolute;
    inset: 0;
    background-color: rgba(59, 130, 246, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.8rem;
}

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

.playlist-num {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    display: block;
}

.playlist-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

.playlist-duration {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ==========================================================================
   Admin Panel (admin.php)
   ========================================================================== */

.admin-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.admin-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.admin-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    padding-bottom: 2px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-main);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.panel {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 2rem;
}

.panel-header {
    margin-bottom: 1.75rem;
}

.panel-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
}

.panel-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* Forms */
.form-row {
    display: flex;
    gap: 1rem;
}

.flex-1 { flex: 1; }
.flex-2 { flex: 2; }

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.form-group label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-main);
}

.form-input {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-main);
    border-radius: var(--radius-md);
    padding: 0.7rem 1rem;
    font-size: 0.92rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.upload-drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.02);
    margin-bottom: 1.25rem;
}

.drop-zone-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.drop-zone-label {
    font-size: 1rem;
    font-weight: 600;
    display: block;
    margin-bottom: 0.5rem;
}

.file-input {
    color: var(--text-muted);
    font-size: 0.88rem;
}

.file-hint {
    font-size: 0.8rem;
    color: var(--text-subtle);
    margin-top: 0.5rem;
}

/* Thumbnail grabber tool */
.thumbnail-tool-box {
    background-color: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    margin: 1.25rem 0;
}

.grabber-preview-row {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.video-preview-wrap {
    flex: 2;
    min-width: 260px;
}

.thumb-preview-wrap {
    flex: 1;
    min-width: 200px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.preview-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Data Table */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th, .data-table td {
    padding: 0.9rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-muted);
    font-weight: 600;
}

.table-thumb {
    width: 65px;
    height: 38px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    background-color: #0f172a;
}

.table-subtext {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.table-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* Passwords & System Info */
.password-management-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.password-box {
    background-color: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 1.5rem;
}

.password-box h3 {
    font-size: 1.1rem;
    margin-bottom: 0.35rem;
}

.system-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.info-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.info-value {
    font-size: 1.15rem;
    font-weight: 700;
}

.text-success { color: var(--success); }
.text-muted { color: var(--text-muted); }

.hotel-tip-box {
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    padding: 1.25rem;
}

.hotel-tip-box h4 {
    margin-bottom: 0.5rem;
    color: #fde047;
}

.hotel-tip-box pre {
    background-color: #000;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-top: 0.75rem;
    font-size: 0.85rem;
    overflow-x: auto;
    color: #a7f3d0;
}

/* ==========================================================================
   Auth / Login (login.php)
   ========================================================================== */

.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
}

.auth-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 440px;
    padding: 2.25rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 1.75rem;
}

.auth-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.15);
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.auth-header h2 {
    font-size: 1.45rem;
    font-weight: 700;
}

.auth-header p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.auth-demo-box {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.demo-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.6rem;
}

.demo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.demo-pill {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.6rem;
    font-size: 0.78rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.demo-pill code {
    color: #60a5fa;
    font-weight: 600;
}

.demo-pill small {
    color: var(--text-subtle);
}

.demo-hint {
    font-size: 0.74rem;
    color: var(--text-subtle);
    margin-top: 0.6rem;
    text-align: center;
}

/* ==========================================================================
   Alerts & Modals
   ========================================================================== */

.alert {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #86efac;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}

.modal-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    width: 100%;
    max-width: 520px;
    padding: 1.75rem;
    box-shadow: var(--shadow-lg);
}

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

.modal-close {
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    border-top: 1px solid var(--border);
    background-color: var(--bg-surface);
    padding: 2rem 1.5rem;
    margin-top: auto;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-note {
    font-size: 0.75rem;
    color: var(--text-subtle);
    margin-top: 0.25rem;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 980px) {
    .watch-container {
        grid-template-columns: 1fr;
    }
    .watch-sidebar {
        position: static;
    }
}

@media (max-width: 640px) {
    .header-container {
        flex-direction: column;
        align-items: flex-start;
    }
    .nav-menu {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
    }
    .form-row {
        flex-direction: column;
    }
    .catalog-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .search-input {
        width: 100%;
    }
    .search-box {
        width: 100%;
    }
    .catalog-actions {
        width: 100%;
    }
    .demo-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Chunked Upload Progress & FTP Staging Styles
   ========================================================================== */

.upload-progress-box {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-top: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.progress-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-main);
}

.progress-percent {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
}

.progress-bar-bg {
    width: 100%;
    height: 12px;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 9999px;
    overflow: hidden;
    margin-bottom: 0.6rem;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #2563eb 0%, #38bdf8 100%);
    border-radius: 9999px;
    transition: width 0.25s ease-out;
}

.progress-stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.ftp-empty-box {
    text-align: center;
    padding: 3rem 1.5rem;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    max-width: 650px;
    margin: 0 auto;
}

.ftp-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
}

.ftp-steps {
    text-align: left;
    margin: 1.25rem auto 0;
    max-width: 520px;
    padding-left: 1.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.8;
}

.ftp-steps code {
    background-color: rgba(0, 0, 0, 0.4);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    color: #60a5fa;
}