/* ═══════════════════════════════════════════════════════════
   AttentionAI — Premium Dark Dashboard Stylesheet
   ═══════════════════════════════════════════════════════════ */

:root {
  /* Color Tokens */
  --bg-base:      #080c14;
  --bg-surface:   #0d1322;
  --bg-card:      #111827;
  --bg-card-2:    #161f30;
  --border:       rgba(99, 120, 160, 0.18);
  --border-glow:  rgba(99, 179, 237, 0.3);

  --text-primary:   #e8edf5;
  --text-secondary: #8899bb;
  --text-muted:     #556080;

  --focused:    #22d67a;
  --focused-bg: rgba(34, 214, 122, 0.12);
  --distracted: #f59e0b;
  --distracted-bg: rgba(245, 158, 11, 0.12);
  --drowsy:     #ef4444;
  --drowsy-bg:  rgba(239, 68, 68, 0.12);

  --accent:     #6ee7f7;
  --accent2:    #a78bfa;
  --gradient:   linear-gradient(135deg, #6ee7f7 0%, #a78bfa 100%);

  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.45);
  --shadow-glow: 0 0 30px rgba(110,231,247,0.1);

  --font-mono: 'JetBrains Mono', 'Fira Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ── Background Particles ──────────────────────────────────── */
.bg-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.bg-particles::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  top: -200px; left: -200px;
  background: radial-gradient(circle, rgba(110,231,247,0.06) 0%, transparent 70%);
  animation: drift1 18s ease-in-out infinite alternate;
}
.bg-particles::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  bottom: -150px; right: -100px;
  background: radial-gradient(circle, rgba(167,139,250,0.07) 0%, transparent 70%);
  animation: drift2 14s ease-in-out infinite alternate;
}
@keyframes drift1 { to { transform: translate(80px, 60px); } }
@keyframes drift2 { to { transform: translate(-60px, -80px); } }

/* ── Header ─────────────────────────────────────────────────── */
.header {
  position: relative; z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 14px 28px;
  background: rgba(13, 19, 34, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-brand {
  display: flex; align-items: center; gap: 12px;
  flex: 1;
}
.brand-icon {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: linear-gradient(135deg, rgba(110,231,247,0.15), rgba(167,139,250,0.15));
  border: 1px solid rgba(110,231,247,0.25);
  border-radius: var(--radius-sm);
}
.brand-name {
  font-size: 1.2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}
.brand-sub {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}
.header-status {
  display: flex; align-items: center; gap: 8px;
}
.live-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background 0.5s;
}
.live-dot.active {
  background: var(--focused);
  box-shadow: 0 0 8px var(--focused);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}
.live-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(110,231,247,0.06);
}

/* ── Main Grid ───────────────────────────────────────────────── */
.main-grid {
  position: relative; z-index: 5;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 20px;
  padding: 20px 28px;
  max-width: 1400px;
  margin: 0 auto;
}
@media (max-width: 1100px) {
  .main-grid { grid-template-columns: 1fr; }
  .dashboard { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
}
@media (max-width: 700px) {
  .dashboard { grid-template-columns: 1fr; }
  .main-grid { padding: 12px 14px; }
}

/* ── Card Base ───────────────────────────────────────────────── */
.video-card, .state-card, .metric-card,
.pose-card, .session-card, .timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s, box-shadow 0.3s;
}
.video-card:hover, .state-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

/* ── Video Section ───────────────────────────────────────────── */
.video-section { display: flex; flex-direction: column; gap: 16px; }
.video-card    { overflow: hidden; }
.video-header  {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.section-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}
.fps-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  background: rgba(110,231,247,0.08);
  border: 1px solid rgba(110,231,247,0.2);
  padding: 3px 10px;
  border-radius: 20px;
}
.video-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #070b12;
  min-height: 300px;
}
#videoCanvas {
  width: 100%;
  display: block;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: #070b12;
}
.video-no-face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(8,12,20,0.85);
  color: var(--text-muted);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.btn-cam-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 25;
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #0ea5e9, #8b5cf6);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 30px;
  box-shadow: 0 6px 24px rgba(14, 165, 233, 0.45);
  cursor: pointer;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-cam-overlay:hover {
  transform: translate(-50%, -53%) scale(1.05);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.6);
}
.video-no-face svg { opacity: 0.4; }
.video-no-face p   { font-size: 0.95rem; font-weight: 500; }
.video-no-face small { font-size: 0.75rem; opacity: 0.6; }
.hidden { display: none !important; }

/* ── Dashboard Column ────────────────────────────────────────── */
.dashboard { display: flex; flex-direction: column; gap: 14px; }

/* ── State Card ──────────────────────────────────────────────── */
.state-card {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  transition: all 0.4s;
}
.state-icon {
  font-size: 2.8rem;
  line-height: 1;
  transition: transform 0.3s;
  filter: drop-shadow(0 0 12px rgba(110,231,247,0.3));
}
.state-info  { flex: 1; }
.state-label {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  transition: color 0.4s;
  margin-bottom: 8px;
}
.state-card.focused    { border-color: rgba(34,214,122,0.35);  background: linear-gradient(135deg, var(--bg-card), rgba(34,214,122,0.05)); }
.state-card.distracted { border-color: rgba(245,158,11,0.35);  background: linear-gradient(135deg, var(--bg-card), rgba(245,158,11,0.05)); }
.state-card.drowsy     { border-color: rgba(239,68,68,0.4);    background: linear-gradient(135deg, var(--bg-card), rgba(239,68,68,0.07)); }
.focused    .state-label { color: var(--focused);    }
.distracted .state-label { color: var(--distracted); }
.drowsy     .state-label { color: var(--drowsy);     }

.confidence-bar-wrap {
  height: 5px;
  background: rgba(255,255,255,0.07);
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 6px;
}
.confidence-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--gradient);
  transition: width 0.5s ease;
  width: 0%;
}
.confidence-text {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ── Metrics Grid ────────────────────────────────────────────── */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}
.metric-card {
  padding: 14px 12px;
  text-align: center;
  transition: transform 0.2s;
}
.metric-card:hover { transform: translateY(-2px); }
.metric-value {
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent);
  margin-bottom: 4px;
}
.metric-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.metric-bar-wrap {
  margin-top: 8px;
  height: 3px;
  background: rgba(255,255,255,0.07);
  border-radius: 99px;
  overflow: hidden;
}
.metric-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--gradient);
  transition: width 0.4s ease;
}
.metric-icon { font-size: 1.2rem; margin-bottom: 2px; }

/* ── Head Pose Card ──────────────────────────────────────────── */
.pose-card { padding: 16px; }
.pose-card .section-label { margin-bottom: 14px; }
.pose-metrics { display: flex; flex-direction: column; gap: 10px; }
.pose-metric { display: flex; align-items: center; gap: 10px; }
.pose-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  width: 36px;
  flex-shrink: 0;
}
.pose-gauge { flex: 1; display: flex; align-items: center; gap: 8px; }
.gauge-track {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}
.gauge-fill {
  position: absolute;
  height: 100%;
  background: var(--gradient);
  border-radius: 99px;
  transition: left 0.4s ease, width 0.4s ease;
  left: 50%; width: 0%;
}
.pose-value {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--accent);
  width: 42px;
  text-align: right;
}

/* ── Session Card ────────────────────────────────────────────── */
.session-card { padding: 16px; }
.session-card .section-label { margin-bottom: 10px; }
.session-timer {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 2px;
  margin-bottom: 14px;
  text-align: center;
}
.donut-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  width: 160px;
  height: 160px;
}
#donutChart { position: absolute; inset: 0; }
.donut-center {
  position: relative;
  text-align: center;
  pointer-events: none;
}
.donut-pct {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--focused);
  font-family: var(--font-mono);
  transition: color 0.4s;
}
.donut-sub {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.session-legend {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-secondary);
}
.legend-item span:last-child {
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}
.legend-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.legend-dot.focused    { background: var(--focused);    box-shadow: 0 0 6px var(--focused);    }
.legend-dot.distracted { background: var(--distracted); box-shadow: 0 0 6px var(--distracted); }
.legend-dot.drowsy     { background: var(--drowsy);     box-shadow: 0 0 6px var(--drowsy);     }

/* ── Timeline Card ───────────────────────────────────────────── */
.timeline-card { padding: 16px; }
.timeline-card .section-label { margin-bottom: 10px; }
#timelineChart { width: 100% !important; }

/* ── Toast ───────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card-2);
  border: 1px solid var(--border-glow);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  z-index: 1000;
  animation: fadeInUp 0.3s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateX(-50%) translateY(20px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ── Warning Banner ──────────────────────────────────────────── */
.warning-banner {
  position: relative; z-index: 20;
  display: flex; align-items: center; gap: 12px;
  padding: 14px 28px;
  font-size: 0.9rem; font-weight: 600; letter-spacing: 0.2px;
  border-bottom: 2px solid transparent;
  transition: background 0.4s, border-color 0.4s;
  animation: bannerSlideIn 0.35s ease;
}
@keyframes bannerSlideIn {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.warning-banner.warn-distracted {
  background: linear-gradient(90deg, rgba(245,158,11,0.2), rgba(245,158,11,0.04));
  border-color: #f59e0b; color: #fbbf24;
}
.warning-banner.warn-drowsy {
  background: linear-gradient(90deg, rgba(239,68,68,0.2), rgba(239,68,68,0.04));
  border-color: #ef4444; color: #f87171;
}
.warning-banner.warn-urgent { animation: bannerSlideIn 0.35s ease, urgentPulse 0.9s ease-in-out infinite; }
@keyframes urgentPulse { 0%,100% { opacity:1; } 50% { opacity:0.6; } }
.warning-icon { font-size: 1.4rem; line-height: 1; flex-shrink: 0; }
.warning-text { flex: 1; }
.warning-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.btn-mute, .btn-dismiss {
  background: rgba(255,255,255,0.09); border: 1px solid rgba(255,255,255,0.16);
  color: inherit; padding: 5px 12px; border-radius: 20px;
  font-size: 0.74rem; font-weight: 600; cursor: pointer; font-family: inherit;
  transition: background 0.2s;
}
.btn-mute:hover, .btn-dismiss:hover { background: rgba(255,255,255,0.18); }
.btn-mute.muted { opacity: 0.4; }

/* ── Enable Audio Button ─────────────────────────────────────── */
.btn-enable-audio {
  background: linear-gradient(135deg, rgba(110,231,247,0.2), rgba(167,139,250,0.2));
  border: 1px solid rgba(110,231,247,0.5);
  color: var(--accent);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  animation: audioPulse 2s ease-in-out infinite;
}
.btn-enable-audio:hover {
  background: linear-gradient(135deg, rgba(110,231,247,0.35), rgba(167,139,250,0.35));
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(110,231,247,0.3);
}
.btn-enable-audio.enabled {
  animation: none;
  background: rgba(34,214,122,0.12);
  border-color: rgba(34,214,122,0.4);
  color: var(--focused);
  cursor: default;
}
@keyframes audioPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(110,231,247,0.4); }
  50%       { box-shadow: 0 0 0 6px rgba(110,231,247,0); }
}

/* ── Session Highlights ──────────────────────────────────────── */
.session-highlights {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.highlight-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  transition: border-color 0.3s;
  position: relative;
  overflow: hidden;
}
.highlight-row:hover { border-color: var(--border-glow); }
.hl-icon { font-size: 1.3rem; flex-shrink: 0; }
.hl-info { flex: 1; min-width: 0; }
.hl-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}
.hl-value {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent);
}
/* Score bar — sits at the bottom of its row */
.hl-bar-wrap {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: rgba(255,255,255,0.06);
}
.hl-bar {
  height: 100%;
  background: var(--gradient);
  border-radius: 0 99px 99px 0;
  transition: width 0.8s ease;
}

/* ── Export CSV Button ───────────────────────────────────────── */
.btn-export {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  margin-top: 12px;
  padding: 9px 16px;
  background: rgba(110,231,247,0.08);
  border: 1px solid rgba(110,231,247,0.25);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-export:hover {
  background: rgba(110,231,247,0.16);
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(110,231,247,0.2);
}
.btn-export.downloading {
  opacity: 0.6;
  cursor: wait;
}