:root {
  --bg: #0c0e0f;
  --panel: #15181a;
  --panel-raised: #1b1f21;
  --line: #262b2d;
  --text: #eceeec;
  --muted: #8b9391;
  --amber: #e0a458;
  --amber-dim: #7a5a30;
  --teal: #4fa89f;
  --teal-dim: #2c5652;
  --danger: #c96a54;
  --display: 'Space Grotesk', system-ui, sans-serif;
  --mono: 'IBM Plex Mono', 'SF Mono', monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--display);
  min-height: 100vh;
}

body {
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.035;
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- topbar ---------- */

.topbar {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 28px 40px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  color: var(--amber);
  font-size: 20px;
  transform: rotate(0deg);
  transition: transform 0.6s ease;
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 15px;
}

.brand-tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* ---------- stage / layout ---------- */

.stage {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 24px 80px;
}

.panel {
  width: 100%;
  max-width: 560px;
}

.hidden { display: none !important; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 34px 0 14px;
}

.eyebrow:first-child { margin-top: 0; }

.optional {
  color: var(--teal);
  text-transform: none;
  letter-spacing: 0;
}

/* ---------- mode cards ---------- */

.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.mode-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 18px;
  text-align: left;
  color: var(--text);
  cursor: pointer;
  font-family: var(--display);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.15s ease;
}

.mode-card:hover { transform: translateY(-1px); border-color: var(--amber-dim); }

.mode-card[aria-pressed="true"] {
  border-color: var(--amber);
  background: linear-gradient(180deg, rgba(224,164,88,0.08), rgba(224,164,88,0.02));
}

.mode-icon {
  font-size: 22px;
  color: var(--amber);
}

.mode-name {
  font-weight: 500;
  font-size: 15px;
}

.mode-desc {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- language row ---------- */

.lang-row {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.lang-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  flex: 1;
  min-width: 180px;
}

select {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 8px;
  font-family: var(--display);
  font-size: 14px;
  appearance: none;
}

select:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.ghost-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  padding: 11px 14px;
  border-radius: 8px;
  cursor: default;
}

/* ---------- toggle ---------- */

.toggle-row {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.toggle-row input { position: absolute; opacity: 0; pointer-events: none; }

.toggle-track {
  width: 40px;
  height: 22px;
  border-radius: 999px;
  background: var(--panel-raised);
  border: 1px solid var(--line);
  position: relative;
  transition: background 0.2s ease;
  flex-shrink: 0;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 0.2s ease, background 0.2s ease;
}

.toggle-row input:checked + .toggle-track { background: var(--teal-dim); border-color: var(--teal); }
.toggle-row input:checked + .toggle-track .toggle-thumb { transform: translateX(18px); background: var(--teal); }

.toggle-label {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
}

/* ---------- buttons ---------- */

.primary-btn {
  margin-top: 34px;
  width: 100%;
  background: var(--amber);
  color: #1a1305;
  border: none;
  padding: 16px 20px;
  border-radius: 10px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.1s ease;
}

.primary-btn:hover { filter: brightness(1.08); }
.primary-btn:active { transform: scale(0.99); }

.mic-note {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  margin-top: 14px;
  line-height: 1.5;
}

/* ---------- live panel ---------- */

.live-panel { max-width: 560px; }

.live-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.live-mode {
  display: flex;
  align-items: center;
  gap: 14px;
}

.live-mode-name {
  font-weight: 500;
  font-size: 16px;
}

.live-status {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
}

.end-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--danger);
  font-family: var(--mono);
  font-size: 12px;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
}

.end-btn:hover { border-color: var(--danger); }

.visualizer {
  position: relative;
  height: 180px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: radial-gradient(ellipse at center, rgba(79,168,159,0.08), transparent 70%), var(--panel);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#waveCanvas {
  width: 100%;
  height: 100%;
}

.listening-dot {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 rgba(79,168,159,0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(79,168,159,0.5); }
  70% { box-shadow: 0 0 0 10px rgba(79,168,159,0); }
  100% { box-shadow: 0 0 0 0 rgba(79,168,159,0); }
}

.camera-preview-wrap {
  position: relative;
  margin-top: 14px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 16 / 9;
}

#cameraPreview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.camera-preview-label {
  position: absolute;
  bottom: 10px;
  left: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(12,14,15,0.7);
  color: var(--amber);
  padding: 4px 8px;
  border-radius: 999px;
}

.transcript {
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  max-height: 220px;
  overflow-y: auto;
}

.transcript p {
  margin: 0 0 8px;
  color: var(--text);
}

.transcript p::before {
  content: "· ";
  color: var(--amber);
}

/* ---------- footer ---------- */

.foot {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 20px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 560px) {
  .mode-grid { grid-template-columns: 1fr; }
  .topbar { padding: 20px 20px 0; }
  .stage { padding: 32px 16px 60px; }
}