/* ── Groovon Design System ──────────────────────────────────────── */
/* Premium dark theme with glassmorphism, gradients, micro-animations */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Custom Properties ─────────────────────────────────────── */
:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(20, 20, 32, 0.8);
    --bg-card-hover: rgba(30, 30, 48, 0.9);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);
    --bg-sidebar: rgba(14, 14, 22, 0.95);

    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-active: rgba(124, 58, 237, 0.5);

    --text-primary: #f1f1f6;
    --text-secondary: #8b8b9e;
    --text-muted: #5a5a72;

    --accent: #7c3aed;
    --accent-hover: #8b5cf6;
    --accent-glow: rgba(124, 58, 237, 0.3);
    --accent-gradient: linear-gradient(135deg, #7c3aed, #a855f7, #ec4899);
    --accent-gradient-subtle: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(168, 85, 247, 0.05));

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(124, 58, 237, 0.15);

    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    --sidebar-width: 260px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a { color: var(--accent-hover); text-decoration: none; transition: color var(--transition); }
a:hover { color: #c084fc; }

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

/* ── Sidebar ───────────────────────────────────────────────────── */
.sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition-slow);
}

.sidebar-brand {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-brand h1 {
    font-size: 22px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.sidebar-brand span {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    display: block;
    margin-top: 2px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all var(--transition);
    cursor: pointer;
}

.nav-item:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-gradient-subtle);
    color: var(--accent-hover);
    box-shadow: inset 3px 0 0 var(--accent);
}

.nav-item .icon { font-size: 18px; width: 24px; text-align: center; }
.nav-item .badge {
    margin-left: auto;
    background: var(--accent);
    color: white;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 99px;
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: white;
}

.user-name { font-weight: 600; font-size: 13px; }
.user-email { font-size: 11px; color: var(--text-muted); }

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

.page-header {
    padding: 28px 32px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.page-header h2 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 4px;
    font-size: 14px;
}

.page-body { padding: 28px 32px; }

/* ── Stats Grid ────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition);
}

.stat-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.stat-card:hover::before { opacity: 1; }

.stat-card .stat-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 6px;
    font-weight: 500;
}

/* color variants */
.stat-card.purple .stat-value { color: var(--accent-hover); }
.stat-card.green .stat-value { color: var(--success); }
.stat-card.amber .stat-value { color: var(--warning); }
.stat-card.red .stat-value { color: var(--danger); }
.stat-card.blue .stat-value { color: var(--info); }

/* ── Cards ─────────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.card-body { padding: 24px; }

/* ── Table ─────────────────────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border);
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.data-table tbody tr {
    transition: background var(--transition);
}

.data-table tbody tr:hover {
    background: var(--bg-glass-hover);
}

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

/* ── Status Badges ─────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    border-radius: 99px;
    font-size: 12px;
    font-weight: 600;
}

.badge.pending {
    background: var(--info-bg);
    color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge.running {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
    animation: pulse 2s infinite;
}

.badge.completed {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge.failed {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    font-family: inherit;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
    color: white;
}

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

.btn-secondary:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border-hover);
    color: white;
}

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ── Progress Bar ──────────────────────────────────────────────── */
.progress-container {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 99px;
    height: 12px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    border-radius: 99px;
    background: var(--accent-gradient);
    transition: width 0.5s ease;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    font-size: 13px;
}

.progress-phase { color: var(--text-secondary); }
.progress-pct { color: var(--accent-hover); font-weight: 700; }

/* ── Forms ─────────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: all var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder { color: var(--text-muted); }

textarea.form-control { min-height: 120px; resize: vertical; }

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%238b8b9e' viewBox='0 0 16 16'%3E%3Cpath d='M4.47 5.97a.75.75 0 0 1 1.06 0L8 8.44l2.47-2.47a.75.75 0 1 1 1.06 1.06l-3 3a.75.75 0 0 1-1.06 0l-3-3a.75.75 0 0 1 0-1.06z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* ── File Upload Zone ──────────────────────────────────────────── */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--accent);
    background: var(--accent-gradient-subtle);
}

.upload-zone .icon { font-size: 48px; margin-bottom: 16px; }
.upload-zone .label { font-weight: 600; font-size: 15px; }
.upload-zone .hint { color: var(--text-muted); font-size: 13px; margin-top: 6px; }
.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* ── Template Download Link ───────────────────────────────────── */
.template-download-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    margin-bottom: 14px;
    border-radius: 99px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-hover);
    background: var(--accent-gradient-subtle);
    border: 1px solid rgba(124, 58, 237, 0.25);
    transition: all var(--transition);
    text-decoration: none;
}

.template-download-link:hover {
    background: rgba(124, 58, 237, 0.15);
    border-color: var(--accent);
    color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--accent-glow);
}

/* ── Tabs ──────────────────────────────────────────────────────── */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 24px;
}

.tab {
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: inherit;
}

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

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Artist Cards ──────────────────────────────────────────────── */
.artist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.artist-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.artist-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.artist-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.artist-card:hover::before { transform: scaleX(1); }

.artist-card .artist-avatar {
    width: 56px; height: 56px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
}

.artist-card .artist-name {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 4px;
}

.artist-card .artist-genre {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.artist-card .artist-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-muted);
}

.artist-card .score-ring {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 800;
}

.artist-links {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.artist-links a {
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-glass);
    border: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.artist-links a:hover {
    border-color: var(--accent);
    color: var(--accent-hover);
}

/* ── Job Detail ────────────────────────────────────────────────── */
.job-hero {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 32px;
    margin-bottom: 28px;
}

.job-hero .job-title {
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.job-phases {
    display: flex;
    gap: 12px;
    margin: 24px 0;
    flex-wrap: wrap;
}

.phase-step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    background: var(--bg-glass);
    border: 1px solid var(--border);
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.phase-step.active {
    border-color: var(--accent);
    color: var(--accent-hover);
    background: var(--accent-gradient-subtle);
}

.phase-step.done {
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--success);
}

/* ── Auth Pages ────────────────────────────────────────────────── */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(236, 72, 153, 0.05) 0%, transparent 50%);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.auth-card .auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-card .auth-logo h1 {
    font-size: 32px;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-card .auth-logo p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 4px;
}

/* ── Empty State ───────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 64px 24px;
    color: var(--text-muted);
}

.empty-state .icon { font-size: 56px; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 18px; font-weight: 600; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 14px; max-width: 400px; margin: 0 auto 24px; }

/* ── Toast ─────────────────────────────────────────────────────── */
.messages {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.message {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideIn 0.3s ease;
    backdrop-filter: blur(12px);
    border: 1px solid;
    min-width: 300px;
}

.message.success { background: var(--success-bg); color: var(--success); border-color: rgba(16, 185, 129, 0.3); }
.message.error { background: var(--danger-bg); color: var(--danger); border-color: rgba(239, 68, 68, 0.3); }
.message.warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(245, 158, 11, 0.3); }
.message.info { background: var(--info-bg); color: var(--info); border-color: rgba(59, 130, 246, 0.3); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open { transform: translateX(0); }

    .main-content { margin-left: 0; }

    .page-body { padding: 20px 16px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }

    .artist-grid { grid-template-columns: 1fr; }

    .job-phases { gap: 8px; }
}

/* ── Misc ──────────────────────────────────────────────────────── */
.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }

.error-list {
    list-style: none;
    padding: 0;
}

.error-list li {
    padding: 6px 12px;
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: var(--radius-sm);
    color: var(--danger);
    font-size: 13px;
    margin-bottom: 6px;
}