/* ========================================
   Venue Digital Signage — Main Stylesheet
   ======================================== */

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #e0e7ff;
    --secondary: #64748b;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --dark: #1e293b;
    --light: #f8fafc;
    --border: #e2e8f0;
    --text: #334155;
    --text-muted: #94a3b8;
    --sidebar-width: 250px;
    --header-height: 64px;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f1f5f9;
    color: var(--text);
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* Layout */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--dark);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 20px 24px;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.sidebar-brand i { font-size: 1.5rem; color: var(--primary); }

.sidebar-nav {
    flex: 1;
    padding: 12px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 24px;
    color: #cbd5e1;
    transition: all .2s;
    font-size: .9rem;
}

.nav-item:hover {
    background: rgba(255,255,255,.08);
    color: #fff;
}

.nav-item.active {
    background: var(--primary);
    color: #fff;
}

.nav-item i { width: 20px; text-align: center; }

.nav-divider {
    height: 1px;
    background: rgba(255,255,255,.08);
    margin: 8px 24px;
}

.sidebar-footer {
    padding: 12px 0;
    border-top: 1px solid rgba(255,255,255,.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 24px;
    font-size: .85rem;
    color: #94a3b8;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.content-header {
    background: #fff;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.content-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.content-body {
    padding: 24px 32px;
}

/* Cards */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
}

.card-body { padding: 20px; }

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon.blue { background: #dbeafe; color: var(--info); }
.stat-icon.green { background: #d1fae5; color: var(--success); }
.stat-icon.purple { background: #e0e7ff; color: var(--primary); }
.stat-icon.orange { background: #fef3c7; color: var(--warning); }
.stat-icon.red { background: #fee2e2; color: var(--danger); }

.stat-info h3 { font-size: 1.75rem; font-weight: 700; line-height: 1; }
.stat-info p { font-size: .85rem; color: var(--text-muted); margin-top: 4px; }

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

table {
    width: 100%;
    border-collapse: collapse;
}

table th, table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

table th {
    font-weight: 600;
    font-size: .8rem;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--text-muted);
    background: #f8fafc;
}

table tbody tr:hover { background: #f8fafc; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: .875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all .2s;
    text-decoration: none;
    line-height: 1.5;
}

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

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; color: #fff; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #d97706; color: #fff; }

.btn-secondary { background: var(--secondary); color: #fff; }
.btn-secondary:hover { background: #475569; color: #fff; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { background: #f8fafc; color: var(--text); }

.btn-sm { padding: 4px 10px; font-size: .8rem; }
.btn-lg { padding: 12px 24px; font-size: 1rem; }

.btn-group { display: flex; gap: 8px; }

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: .875rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: .9rem;
    transition: border-color .2s;
    background: #fff;
    color: var(--text);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.1);
}

select.form-control { cursor: pointer; }

textarea.form-control { resize: vertical; min-height: 100px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-hint {
    font-size: .8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: .9rem;
}

.alert-success { background: #d1fae5; color: #065f46; }
.alert-danger { background: #fee2e2; color: #991b1b; }
.alert-warning { background: #fef3c7; color: #92400e; }
.alert-info { background: #dbeafe; color: #1e40af; }

.alert-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: inherit;
    opacity: .7;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: .75rem;
    font-weight: 600;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-secondary { background: #e2e8f0; color: #475569; }
.badge-purple { background: #ede9fe; color: #6d28d9; }

/* Status indicators */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 6px;
}

.status-dot.online { background: var(--success); }
.status-dot.offline { background: var(--danger); }

/* Media Grid */
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.media-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform .2s, box-shadow .2s;
    position: relative;
}

.media-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.media-card-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    background: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.media-card-thumb .video-icon {
    font-size: 2rem;
    color: var(--text-muted);
}

.media-card-info {
    padding: 10px 12px;
}

.media-card-info h4 {
    font-size: .85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.media-card-info .meta {
    font-size: .75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.media-card-actions {
    position: absolute;
    top: 8px;
    right: 8px;
    display: none;
    gap: 4px;
}

.media-card:hover .media-card-actions { display: flex; }

.media-card-select {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 2;
}

.media-card-select input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    opacity: 0;
    transition: opacity .15s;
}

.media-card:hover .media-card-select input[type="checkbox"],
.media-card.selected .media-card-select input[type="checkbox"] {
    opacity: 1;
}

.media-card.selected {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
}

/* Bulk Actions Bar */
.bulk-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--primary);
    color: #fff;
    padding: 10px 16px;
    border-radius: var(--radius);
    margin-bottom: 12px;
    gap: 12px;
}

.bulk-bar-left {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: .9rem;
    font-weight: 500;
}

.bulk-bar-left input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

.bulk-bar-right {
    display: flex;
    gap: 8px;
}

.bulk-bar .btn-outline {
    border-color: rgba(255,255,255,.4);
    color: #fff;
}

.bulk-bar .btn-outline:hover {
    background: rgba(255,255,255,.15);
}

/* Folder Management */
.folder-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.folder-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #f1f5f9;
}

.folder-row:last-child {
    border-bottom: none;
}

.folder-row-info {
    display: flex;
    align-items: center;
    font-size: .93rem;
}

.folder-row-info a {
    color: var(--text-dark);
    font-weight: 500;
    text-decoration: none;
}

.folder-row-info a:hover {
    color: var(--primary);
}

.folder-row-actions {
    display: flex;
    gap: 4px;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
    background: #fff;
    border-radius: var(--radius);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px rgba(0,0,0,.25);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 { font-size: 1.1rem; }

.modal-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body { padding: 20px; }

#previewModal .modal { display: flex; flex-direction: column; overflow: hidden; }

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* Upload area */
.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all .2s;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-area i { font-size: 2.5rem; color: var(--text-muted); }
.upload-area p { margin-top: 12px; color: var(--text-muted); }

/* Upload queue & progress */
.upload-queue {
    margin-top: 16px;
    max-height: 240px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.upload-file-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}
.upload-file-row:last-child { border-bottom: none; }

.upload-file-icon {
    flex-shrink: 0;
    width: 32px;
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
}

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

.upload-file-name {
    font-size: .875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.upload-file-size {
    font-size: .75rem;
    color: var(--text-muted);
}

.upload-file-error {
    font-size: .75rem;
    color: var(--danger);
}

.upload-file-progress {
    flex-shrink: 0;
    width: 100px;
    text-align: center;
}
.upload-file-progress.done { color: var(--success); font-size: 1.1rem; }
.upload-file-progress.error { color: var(--danger); font-size: 1.1rem; }

.upload-file-remove {
    flex-shrink: 0;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}
.upload-file-remove:hover { color: var(--danger); }

/* Progress bar */
.progress-bar-track {
    background: var(--border);
    border-radius: 99px;
    height: 8px;
    overflow: hidden;
    width: 100%;
}

.progress-bar-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 99px;
    transition: width .2s ease;
}

.upload-overall {
    margin-top: 16px;
}

.upload-overall-text {
    display: flex;
    justify-content: space-between;
    font-size: .8rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

/* Playlist item row */
.playlist-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 8px;
    cursor: grab;
}

.playlist-item:active { cursor: grabbing; }

.playlist-item .drag-handle {
    color: var(--text-muted);
    cursor: grab;
}

.playlist-item .thumb {
    width: 80px;
    height: 45px;
    border-radius: 4px;
    object-fit: cover;
    background: #e2e8f0;
}

.playlist-item .item-info { flex: 1; }
.playlist-item .item-info h4 { font-size: .9rem; }
.playlist-item .item-info .meta { font-size: .8rem; color: var(--text-muted); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i { font-size: 3rem; margin-bottom: 16px; }
.empty-state h3 { font-size: 1.1rem; color: var(--text); margin-bottom: 8px; }
.empty-state p { margin-bottom: 20px; }

/* Grid layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }

/* Login page */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, #312e81 100%);
}

.login-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: 0 25px 50px rgba(0,0,0,.25);
    width: 100%;
    max-width: 400px;
    padding: 40px;
}

.login-card h1 {
    text-align: center;
    margin-bottom: 8px;
    font-size: 1.5rem;
}

.login-card .subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: .9rem;
}

.login-card .login-icon {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

/* Player download links on login */
.player-downloads {
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.player-downloads p {
    font-size: .8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: 12px;
}

.download-links {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: .85rem;
    font-weight: 500;
    color: var(--text);
    text-decoration: none;
    transition: all .2s;
}

.download-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.download-link i { font-size: 1.1rem; }

/* Toolbar / Filter bar */
.toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.toolbar .search-input {
    flex: 1;
    min-width: 200px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; }
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .content-body { padding: 16px; }
    .media-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
}

/* Drag & drop highlight */
.drag-over { background-color: var(--primary-light) !important; }

/* Screen preview card */
.screen-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
}

.screen-card .screen-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.screen-card .screen-monitor {
    background: #1e293b;
    border-radius: 6px;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 2rem;
    margin-bottom: 12px;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    color: var(--text-muted);
    font-weight: 500;
    transition: all .2s;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* Toggle switch */
.toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #cbd5e1;
    border-radius: 24px;
    transition: .2s;
}

.toggle-slider:before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: #fff;
    border-radius: 50%;
    transition: .2s;
}

.toggle input:checked + .toggle-slider { background: var(--primary); }
.toggle input:checked + .toggle-slider:before { transform: translateX(20px); }

/* Utility */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }