/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #050810;
  --surface: #0d1117;
  --surface2: #161b27;
  --border: rgba(99, 202, 183, 0.15);
  --accent: #63cab7;
  --accent2: #f0c06a;
  --text: #e8edf5;
  --text-muted: #5a6478;
  --danger: #ff6b6b;
  --font-display: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  overflow-x: hidden;
}

/* =============================================
   BACKGROUND EFFECTS
   ============================================= */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,202,183,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,202,183,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.bg-glow {
  position: fixed;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(99,202,183,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* =============================================
   LAYOUT
   ============================================= */
body > * { position: relative; z-index: 1; }

header {
  text-align: center;
  padding: 48px 24px 32px;
  animation: fadeDown 0.8s ease both;
}

main {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px 40px;
  animation: fadeUp 0.8s 0.2s ease both;
}

/* =============================================
   HEADER
   ============================================= */
.badge {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 4px 12px;
  border-radius: 2px;
  margin-bottom: 16px;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 80px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--text);
}

h1 span {
  color: var(--accent);
  -webkit-text-stroke: 1px var(--accent);
}

.subtitle {
  margin-top: 12px;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* =============================================
   CARDS
   ============================================= */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}

.card-label {
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 14px;
  font-weight: 700;
}

/* =============================================
   WEBCAM CARD
   ============================================= */
.webcam-card {
  display: flex;
  flex-direction: column;
  padding: 16px;
}

#webcam-container {
  width: 100%;
  aspect-ratio: 1;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

#webcam-container canvas {
  width: 100% !important;
  height: 100% !important;
  object-fit: cover;
  display: block;
}

.cam-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  text-align: center;
  font-size: 11px;
  line-height: 1.6;
}

.cam-icon {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
  opacity: 0.4;
}

.cam-icon svg { width: 100%; height: 100%; }

/* Corner decorations */
.webcam-card::after {
  content: '';
  position: absolute;
  bottom: 16px; right: 16px;
  width: 24px; height: 24px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  opacity: 0.4;
}

/* Scan line animation */
.scan-line {
  position: absolute;
  left: 16px; right: 16px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.scan-line.active {
  opacity: 0.6;
  animation: scanMove 2.5s linear infinite;
}

@keyframes scanMove {
  0%   { top: 36px; }
  100% { bottom: 16px; top: calc(100% - 36px); }
}

/* =============================================
   RIGHT PANEL
   ============================================= */
.right-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* =============================================
   RESULT CARD (label bars)
   ============================================= */
.result-card {
  flex: 1;
}

.no-result {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  padding: 20px 0;
}

#label-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Injected by JS */
.label-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.label-top {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.label-name { color: var(--text); }
.label-pct  { color: var(--accent); font-weight: 700; }

.label-bar-bg {
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
}

.label-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.2s ease;
}

.label-bar-fill.top { background: var(--accent2); }

/* =============================================
   TOP PREDICTION CARD
   ============================================= */
.top-card {}

.top-result {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}

.top-name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent2);
  letter-spacing: -0.01em;
}

.top-pct {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font-display);
}

.confidence-bar-wrap {
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  overflow: hidden;
}

.confidence-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
  transition: width 0.25s ease;
}

/* =============================================
   START BUTTON
   ============================================= */
#start-btn {
  width: 100%;
  padding: 16px;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  cursor: pointer;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background 0.2s, color 0.2s;
  position: relative;
  overflow: hidden;
}

#start-btn:hover {
  background: var(--accent);
  color: var(--bg);
}

#start-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 640px) {
  main {
    grid-template-columns: 1fr;
  }

  #webcam-container {
    aspect-ratio: 1;
    max-width: 320px;
    margin: 0 auto;
  }
}