/* ── AlgebraVerse Automated Demo ── */

/* Layout */
.av-demo { min-height: 100vh; display: flex; flex-direction: column; background: var(--nbz-bg); }

/* Fixed header */
.av-header { position: fixed; top: 0; left: 0; right: 0; z-index: 50; background: rgba(var(--nbz-bg-rgb, 10,10,18), 0.8); backdrop-filter: blur(20px); border-bottom: 1px solid var(--nbz-border); }
.av-header-inner { max-width: 1200px; margin: 0 auto; padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; }
.av-header-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--nbz-text); font-weight: 700; font-size: 15px; }
.av-header-logo img { width: 32px; height: 32px; object-fit: contain; border-radius: 8px; }
.av-header-actions { display: flex; align-items: center; gap: 12px; }
.av-step-counter { font-size: 13px; color: var(--nbz-muted); }
.av-btn-trial { padding: 8px 20px; font-size: 13px; font-weight: 600; background: linear-gradient(135deg, var(--nbz-accent), var(--nbz-accent-2)); color: #fff; border: none; border-radius: 10px; cursor: pointer; text-decoration: none; transition: opacity 0.2s; }
.av-btn-trial:hover { opacity: 0.9; }
.av-btn-close { padding: 8px; color: var(--nbz-muted); background: none; border: none; cursor: pointer; font-size: 18px; transition: color 0.2s; }
.av-btn-close:hover { color: var(--nbz-text); }

/* Demo area */
.av-stage { flex: 1; padding-top: 60px; position: relative; display: flex; flex-direction: column; min-height: 0; }
.av-stage-bg { position: absolute; inset: 0; opacity: 0.05; transition: background 1s; z-index: 0; }
.av-scene-container { position: relative; z-index: 1; flex: 1; min-height: 0; display: flex; align-items: flex-start; justify-content: center; padding: 12px 16px; overflow-y: auto; overflow-x: hidden; }
.av-scene { width: 100%; max-width: 560px; animation: avFadeIn 0.4s ease-out; }
.av-scene-wide { max-width: 680px; }

@keyframes avFadeIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes avFadeOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(-16px); } }

/* Scene card */
.av-card { background: var(--nbz-panel); border: 1px solid var(--nbz-border); border-radius: 20px; overflow: hidden; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25); }
.av-card-header { padding: 12px 16px; border-bottom: 1px solid var(--nbz-border-2); display: flex; align-items: center; gap: 12px; }
.av-card-icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: #fff; font-size: 16px; flex-shrink: 0; }
.av-card-title { font-size: 13px; font-weight: 700; color: var(--nbz-text); }
.av-card-subtitle { font-size: 10px; color: var(--nbz-muted); }
.av-card-badge { margin-left: auto; padding: 4px 12px; border-radius: 999px; font-size: 11px; font-weight: 600; display: flex; align-items: center; gap: 4px; }
.av-card-body { padding: 12px 16px; }
.av-card-footer { padding: 10px 16px; border-top: 1px solid var(--nbz-border-2); }

/* Item rows (used across scenes) */
.av-item { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 12px; background: var(--nbz-panel-3); border: 1px solid var(--nbz-border); margin-bottom: 5px; transition: all 0.3s; }
.av-item:last-child { margin-bottom: 0; }
.av-item-icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; font-size: 14px; flex-shrink: 0; }
.av-item-info { flex: 1; min-width: 0; }
.av-item-label { font-size: 12px; font-weight: 600; color: var(--nbz-text); }
.av-item-desc { font-size: 10px; color: var(--nbz-muted); margin-top: 1px; }
.av-item-value { font-size: 13px; font-weight: 700; color: var(--nbz-text); text-align: right; }
.av-item-badge { padding: 3px 8px; border-radius: 999px; font-size: 10px; font-weight: 600; }

/* Status colors */
.av-status-green { background: rgba(34,197,94,0.1); color: #22c55e; border-color: rgba(34,197,94,0.2); }
.av-status-blue { background: rgba(59,130,246,0.1); color: #3b82f6; border-color: rgba(59,130,246,0.2); }
.av-status-amber { background: rgba(245,158,11,0.1); color: #f59e0b; border-color: rgba(245,158,11,0.2); }
.av-status-red { background: rgba(239,68,68,0.1); color: #ef4444; border-color: rgba(239,68,68,0.2); }

/* Progress bar (inside items) */
.av-progress { height: 8px; background: var(--nbz-panel-3); border-radius: 999px; overflow: hidden; }
.av-progress-bar { height: 100%; border-radius: 999px; transition: width 0.5s ease-out; }

/* Stats grid */
.av-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.av-stats-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.av-stat { text-align: center; padding: 6px; border-radius: 10px; background: var(--nbz-panel-3); }
.av-stat-num { font-size: 14px; font-weight: 800; color: var(--nbz-text); }
.av-stat-label { font-size: 9px; color: var(--nbz-muted); margin-top: 2px; text-transform: uppercase; letter-spacing: 0.05em; }

/* Grid layouts */
.av-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.av-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }

/* Avatar */
.av-avatar { width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-size: 11px; font-weight: 700; flex-shrink: 0; }

/* Spinner animation */
@keyframes avSpin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.av-spin { animation: avSpin 1s linear infinite; }

/* Pulse animation */
@keyframes avPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.av-pulse { animation: avPulse 2s ease-in-out infinite; }

/* Scanning line animation */
@keyframes avScan { 0% { top: 0; } 100% { top: 100%; } }
.av-scan-line { position: absolute; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, transparent, rgba(var(--nbz-accent-rgb, 139,92,246),0.8), transparent); animation: avScan 3s linear infinite; }

/* Typing dots */
.av-typing { display: flex; gap: 4px; padding: 12px 16px; }
.av-typing span { width: 8px; height: 8px; border-radius: 50%; background: var(--nbz-accent); }
@keyframes avBounce { 0%, 60%, 100% { transform: translateY(0); } 30% { transform: translateY(-8px); } }
.av-typing span:nth-child(1) { animation: avBounce 1.4s infinite 0ms; }
.av-typing span:nth-child(2) { animation: avBounce 1.4s infinite 200ms; }
.av-typing span:nth-child(3) { animation: avBounce 1.4s infinite 400ms; }

/* Chart bars */
.av-chart-bars { display: flex; align-items: flex-end; gap: 3px; height: 64px; }
.av-chart-bar { flex: 1; border-radius: 3px 3px 0 0; transition: height 0.5s ease-out; }

/* Donut chart */
.av-donut { width: 64px; height: 64px; }
.av-donut circle { fill: none; stroke-width: 4; }

/* Controls panel */
.av-controls { background: var(--nbz-panel); border-top: 1px solid var(--nbz-border); padding: 10px 16px 14px; flex-shrink: 0; }
.av-controls-inner { max-width: 800px; margin: 0 auto; }

/* Step info */
.av-step-info { text-align: center; margin-bottom: 8px; }
.av-step-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 999px; color: #fff; font-size: 11px; font-weight: 600; margin-bottom: 4px; }
.av-step-title { font-size: clamp(15px, 2.5vw, 20px); font-weight: 800; color: var(--nbz-text); margin: 0 0 2px; }
.av-step-desc { font-size: 11px; color: var(--nbz-muted); max-width: 500px; margin: 0 auto; line-height: 1.5; }

/* Progress track */
.av-progress-track { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.av-nav-btn { width: 36px; height: 36px; border-radius: 10px; border: none; background: var(--nbz-panel-3); color: var(--nbz-text); cursor: pointer; display: grid; place-items: center; font-size: 16px; transition: background 0.2s; flex-shrink: 0; }
.av-nav-btn:hover { background: var(--nbz-border); }
.av-segments { display: flex; gap: 3px; flex: 1; overflow-x: auto; padding: 4px 0; }
.av-segment { flex: 1; min-width: 16px; height: 5px; border-radius: 999px; background: var(--nbz-panel-3); overflow: hidden; cursor: pointer; transition: transform 0.1s; }
.av-segment:hover { transform: scaleY(1.5); }
.av-segment-fill { height: 100%; border-radius: 999px; width: 0; transition: width 0.05s linear; }

/* Play/pause */
.av-play-row { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 8px; }
.av-play-btn { width: 34px; height: 34px; border-radius: 50%; border: none; background: linear-gradient(135deg, var(--nbz-accent), var(--nbz-accent-2)); color: #fff; cursor: pointer; display: grid; place-items: center; font-size: 14px; transition: opacity 0.2s; }
.av-play-btn:hover { opacity: 0.9; }
.av-play-label { font-size: 12px; color: var(--nbz-muted); }

/* CTA */
.av-cta { text-align: center; }
.av-cta-btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 24px; font-size: 14px; font-weight: 700; background: linear-gradient(135deg, var(--nbz-accent), var(--nbz-accent-2)); color: #fff; border: none; border-radius: 12px; cursor: pointer; text-decoration: none; box-shadow: 0 8px 25px rgba(var(--nbz-accent-rgb, 139,92,246),0.25); transition: transform 0.2s, box-shadow 0.2s; }
.av-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(var(--nbz-accent-rgb, 139,92,246),0.35); }
.av-cta-sub { font-size: 11px; color: var(--nbz-muted); margin-top: 6px; }

/* Chat scene specific */
.av-chat-msg { padding: 10px 14px; border-radius: 16px; font-size: 13px; line-height: 1.6; max-width: 90%; margin-bottom: 10px; animation: avFadeIn 0.3s ease-out; white-space: pre-line; }
.av-chat-msg-user { background: linear-gradient(135deg, var(--nbz-accent), var(--nbz-accent-2)); color: #fff; margin-left: auto; border-bottom-right-radius: 4px; }
.av-chat-msg-ai { background: var(--nbz-panel-3); color: var(--nbz-text); border-bottom-left-radius: 4px; }
.av-chat-input { display: flex; align-items: center; gap: 8px; padding: 12px 14px; border-radius: 14px; background: var(--nbz-panel-3); border: 1px solid var(--nbz-border); }
.av-chat-input i { color: var(--nbz-muted); font-size: 14px; }
.av-chat-input span { flex: 1; font-size: 13px; color: var(--nbz-muted); }

/* Gradient helpers */
.av-grad-blue { background: linear-gradient(135deg, #3b82f6, #06b6d4); }
.av-grad-violet { background: linear-gradient(135deg, var(--nbz-accent, #8b5cf6), color-mix(in srgb, var(--nbz-accent, #8b5cf6) 80%, black)); }
.av-grad-amber { background: linear-gradient(135deg, #f59e0b, #f97316); }
.av-grad-emerald { background: linear-gradient(135deg, #10b981, #16a34a); }
.av-grad-red { background: linear-gradient(135deg, #ef4444, #e11d48); }
.av-grad-cyan { background: linear-gradient(135deg, #06b6d4, #0d9488); }
.av-grad-indigo { background: linear-gradient(135deg, #6366f1, #2563eb); }
.av-grad-fuchsia { background: linear-gradient(135deg, #d946ef, #ec4899); }
.av-grad-sky { background: linear-gradient(135deg, #0ea5e9, #2563eb); }
.av-grad-slate { background: linear-gradient(135deg, #475569, #3f3f46); }
.av-grad-orange { background: linear-gradient(135deg, #f97316, #d97706); }
.av-grad-pink { background: linear-gradient(135deg, #ec4899, #e11d48); }
.av-grad-teal { background: linear-gradient(135deg, #14b8a6, #059669); }
.av-grad-gray { background: linear-gradient(135deg, #4b5563, #334155); }

/* Responsive */
@media (max-width: 768px) {
  .av-demo { touch-action: manipulation; }
  .av-header-inner { padding: 10px 12px; }
  .av-header-logo { font-size: 14px; gap: 6px; }
  .av-header-logo img { width: 28px; height: 28px; }
  .av-btn-trial { padding: 6px 14px; font-size: 12px; }
  .av-controls { padding: 8px 12px 12px; }
  .av-step-desc { font-size: 11px; }
  .av-cta-btn { padding: 12px 20px; font-size: 14px; min-height: 48px; }
  .av-nav-btn { min-width: 44px; min-height: 44px; }
  .av-play-btn { min-width: 44px; min-height: 44px; }
}

@media (max-width: 640px) {
  .av-scene-container { min-height: 260px; padding: 10px 12px; }
  .av-step-counter { display: none; }
  .av-stats { grid-template-columns: repeat(2, 1fr); }
  .av-stats-4 { grid-template-columns: repeat(2, 1fr); }
  .av-grid-2 { grid-template-columns: 1fr; }
  .av-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .av-card { border-radius: 16px; }
  .av-step-title { font-size: 16px; }
  .av-step-badge { font-size: 10px; padding: 3px 10px; }
}

@media (max-width: 480px) {
  .av-header-inner { padding: 8px 10px; }
  .av-header-logo { font-size: 13px; }
  .av-header-logo img { width: 24px; height: 24px; }
  .av-btn-trial { padding: 5px 10px; font-size: 11px; }
  .av-controls { padding: 6px 10px 10px; }
  .av-step-title { font-size: 15px; }
  .av-step-desc { font-size: 10px; line-height: 1.4; }
  .av-cta-btn { width: 100%; justify-content: center; }
  .av-cta-sub { font-size: 10px; }
  .av-segments { gap: 2px; }
  .av-segment { min-width: 12px; }
}

/* RTL Support */
[dir="rtl"] .av-demo { direction: rtl; }
[dir="rtl"] .av-header-inner { flex-direction: row-reverse; }
[dir="rtl"] .av-header-logo { flex-direction: row-reverse; }
[dir="rtl"] .av-header-actions { flex-direction: row-reverse; }
[dir="rtl"] .av-card-header { flex-direction: row-reverse; }
[dir="rtl"] .av-card-badge { margin-left: 0; margin-right: auto; }
[dir="rtl"] .av-item { flex-direction: row-reverse; }
[dir="rtl"] .av-item-value { text-align: left; }
[dir="rtl"] .av-progress-track { flex-direction: row-reverse; }
[dir="rtl"] .av-segments { flex-direction: row-reverse; }
[dir="rtl"] .av-cta-btn { flex-direction: row-reverse; }
[dir="rtl"] .av-chat-msg-user { margin-left: 0; margin-right: auto; border-bottom-right-radius: 16px; border-bottom-left-radius: 4px; }
[dir="rtl"] .av-chat-msg-ai { border-bottom-left-radius: 16px; border-bottom-right-radius: 4px; }

/* RTL Scene specific */
[dir="rtl"] .av-scene { text-align: right; }
[dir="rtl"] .av-item-info { text-align: right; }
[dir="rtl"] .av-card-title { text-align: right; }
[dir="rtl"] .av-card-subtitle { text-align: right; }