/* wen3.sysbrain.io - Styles */
:root {
    --bg: #f5f7fa;
    --card-bg: #ffffff;
    --text: #1a1a2e;
    --text-muted: #6b7280;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #e5e7eb;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }

.navbar { background: var(--card-bg); border-bottom: 1px solid var(--border); padding: 0.75rem 1.5rem; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 100; }
.nav-brand a { text-decoration: none; font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav-links a { text-decoration: none; color: var(--text); font-size: 0.9rem; padding: 0.4rem 0.8rem; border-radius: 6px; transition: background 0.2s; }
.nav-links a:hover { background: var(--bg); }
.nav-user { font-weight: 600; color: var(--primary); font-size: 0.85rem; }

.container { max-width: 1100px; margin: 2rem auto; padding: 0 1.5rem; }

h1 { font-size: 1.75rem; margin-bottom: 1.5rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; margin-bottom: 2rem; }
.card { background: var(--card-bg); border-radius: var(--radius); padding: 1.25rem; box-shadow: var(--shadow); border: 1px solid var(--border); }
.stat-card { text-align: center; padding: 1.5rem; }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--primary); }
.stat-label { color: var(--text-muted); font-size: 0.9rem; margin-top: 0.25rem; }
.stat-card.processing .stat-number { color: var(--warning); }
.stat-card.success .stat-number { color: var(--success); }

.actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn { display: inline-block; padding: 0.6rem 1.2rem; border-radius: 8px; border: none; cursor: pointer; font-size: 0.9rem; font-weight: 600; text-decoration: none; transition: all 0.2s; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #d1d5db; }
.btn-danger { background: var(--danger); color: white; }
.btn-lg { padding: 0.8rem 1.6rem; font-size: 1rem; }
.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; border-radius: 6px; border: 1px solid var(--border); background: var(--card-bg); cursor: pointer; }
.btn-sm:hover { background: var(--bg); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; gap: 0.5rem; }
.filters { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.chip { display: inline-block; padding: 0.3rem 0.8rem; border-radius: 20px; font-size: 0.8rem; background: var(--bg); border: 1px solid var(--border); cursor: pointer; text-decoration: none; color: var(--text); transition: all 0.2s; }
.chip:hover, .chip.active { background: var(--primary); color: white; border-color: var(--primary); }
.chip-template { background: #ede9fe; color: #7c3aed; border-color: #c4b5fd; }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }

/* Login */
.login-box { max-width: 400px; margin: 10vh auto; background: var(--card-bg); padding: 2.5rem; border-radius: var(--radius); box-shadow: 0 4px 20px rgba(0,0,0,0.08); text-align: center; }
.login-box h1 { font-size: 2rem; margin-bottom: 0.25rem; }
.subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }
.login-box form { text-align: left; }
.login-box label { display: block; margin-bottom: 0.25rem; font-weight: 600; font-size: 0.85rem; }
.login-box input { width: 100%; padding: 0.7rem; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 1rem; font-size: 0.95rem; }
.login-box .btn { width: 100%; text-align: center; }

.alert { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.9rem; }
.alert-error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }

/* Forms */
.video-form label { display: block; margin-bottom: 0.25rem; font-weight: 600; font-size: 0.85rem; margin-top: 1rem; }
.video-form textarea, .video-form select, .video-form input[type="text"] { width: 100%; padding: 0.7rem; border: 1px solid var(--border); border-radius: 8px; font-size: 0.95rem; font-family: inherit; }
.form-row { display: flex; gap: 1rem; }
.form-row > div { flex: 1; }
.form-actions { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; margin-top: 1.5rem; }
.form-status { margin-top: 1rem; padding: 0.75rem; border-radius: 8px; font-weight: 600; }
.form-status.pending { background: #fffbeb; color: var(--warning); }
.form-status.success { background: #ecfdf5; color: var(--success); }
.form-status.error { background: #fef2f2; color: var(--danger); }

/* Video cards */
.video-card .card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.75rem; }
.status-badge { padding: 0.2rem 0.6rem; border-radius: 12px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; }
.status-pending { background: #fffbeb; color: var(--warning); }
.status-running { background: #dbeafe; color: #2563eb; animation: pulse 2s infinite; }
.status-succeeded { background: #ecfdf5; color: var(--success); }
.status-failed { background: #fef2f2; color: var(--danger); }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }

.video-player { width: 100%; border-radius: 8px; background: #000; max-height: 300px; }
.video-placeholder { height: 180px; display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--bg); border-radius: 8px; color: var(--text-muted); }
.video-placeholder.error { background: #fef2f2; color: var(--danger); }

.spinner { width: 32px; height: 32px; border: 3px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.8s linear infinite; margin-bottom: 0.5rem; }
@keyframes spin { to { transform: rotate(360deg); } }

.prompt-body { color: var(--text-muted); font-size: 0.85rem; margin: 0.5rem 0; }
.prompt-snapshot { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.5rem; }
.card-meta { display: flex; justify-content: space-between; font-size: 0.8rem; color: var(--text-muted); margin-top: 0.5rem; }
.card-actions { display: flex; gap: 0.5rem; margin-top: 0.75rem; }

.empty-state { text-align: center; color: var(--text-muted); padding: 3rem; grid-column: 1 / -1; }

@media (max-width: 640px) {
    .navbar { flex-direction: column; gap: 0.5rem; }
    .nav-links { flex-wrap: wrap; justify-content: center; }
    .form-row { flex-direction: column; }
    .cards { grid-template-columns: 1fr; }
}

/* Duration slider */
.duration-slider-wrap { display: flex; align-items: center; gap: 0.75rem; }
.duration-slider-wrap input[type="range"] {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    accent-color: var(--primary);
    cursor: pointer;
    appearance: auto;
}
.dur-badge {
    display: inline-block;
    min-width: 3rem;
    text-align: center;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    background: #ede9fe;
    color: var(--primary);
    white-space: nowrap;
}
.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* === Prompt Helper === */
.helper-card {
    margin: 1rem 0;
    padding: 1rem;
    border: 1px solid var(--border, #ddd);
    border-radius: 8px;
    background: var(--card-bg, #f9f9fb);
}
.helper-header {
    font-weight: 600;
    margin-bottom: .5rem;
    font-size: 1rem;
}
.helper-actions {
    display: flex;
    gap: .5rem;
    flex-wrap: wrap;
    margin-bottom: .5rem;
}
.helper-preview {
    margin-top: .75rem;
    padding: .75rem;
    background: var(--bg, #fff);
    border: 1px dashed var(--border, #ccc);
    border-radius: 6px;
    white-space: pre-wrap;
    font-size: .95rem;
    line-height: 1.5;
}
.helper-preview-actions {
    margin-top: .5rem;
    display: flex;
    gap: .5rem;
}
.helper-ideas {
    margin-top: .75rem;
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}
.idea-chip {
    text-align: left;
    white-space: normal;
    max-width: 100%;
    line-height: 1.4;
}
.helper-status {
    margin-top: .5rem;
    font-size: .9rem;
}
.helper-status.pending { color: var(--accent, #6366f1); }
.helper-status.error { color: #dc2626; }
.helper-hint {
    margin-top: .5rem;
    font-size: .8rem;
    color: var(--muted, #888);
}
.btn-outline {
    background: transparent;
    border: 1px solid var(--border, #ccc);
    color: var(--text, #333);
}
.btn-outline:hover { background: var(--hover, #eee); }