/* Speak the Sentences · Teen2Teen 2 Unit 1 */
:root {
  --vs-bg: #f4f6fb;
  --vs-card: #ffffff;
  --vs-text: #1e1b4b;
  --vs-muted: #64748b;
  --vs-purple: #6d28d9;
  --vs-purple-soft: rgba(109, 40, 217, 0.12);
  --vs-green: #16a34a;
  --vs-red: #dc2626;
  --vs-radius: 16px;
  --vs-shadow: 0 10px 28px rgba(30, 27, 75, 0.08);
  --vs-mic: #6d28d9;
  --vs-mic-listening: #dc2626;
}

html[data-theme="dark"] {
  --vs-bg: #0f1220;
  --vs-card: #1a1f35;
  --vs-text: #f1f5f9;
  --vs-muted: #94a3b8;
  --vs-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  --vs-purple-soft: rgba(167, 139, 250, 0.18);
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  min-height: 100dvh;
  background: var(--vs-bg) !important;
  color: var(--vs-text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

.arcade-header-bar,
.arcade-nav,
.nav-profile,
.profile-fab,
[data-theme-toggle],
.theme-toggle,
body > header,
.site-footer {
  display: none !important;
}
html, body, body.game-page {
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  margin: 0 !important;
}

.vs-game {
  max-width: 480px;
  margin: 0 auto;
  padding: 12px 16px 36px;
  padding-left: max(16px, env(safe-area-inset-left));
  padding-right: max(16px, env(safe-area-inset-right));
  padding-bottom: max(36px, env(safe-area-inset-bottom));
  min-height: 100dvh;
}

/* Top bar */
.vs-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.vs-back {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--vs-card);
  color: var(--vs-text);
  text-decoration: none;
  border: 1px solid rgba(109, 40, 217, 0.15);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
  flex-shrink: 0;
  font-size: 1.15rem;
}
.vs-title {
  flex: 1;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--vs-muted);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.vs-badge {
  font-size: 12px;
  font-weight: 800;
  padding: 6px 11px;
  border-radius: 999px;
  background: var(--vs-purple-soft);
  color: var(--vs-purple);
  flex-shrink: 0;
}
.vs-stat {
  font-size: 12px;
  font-weight: 700;
  color: var(--vs-muted);
  margin-left: 4px;
}

/* Progress */
.vs-progress {
  height: 5px;
  background: rgba(109, 40, 217, 0.1);
  border-radius: 3px;
  margin-bottom: 12px;
  overflow: hidden;
}
.vs-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #6d28d9, #a78bfa);
  width: 0%;
  transition: width 0.35s ease;
  border-radius: 3px;
}
.vs-partlabel {
  text-align: center;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--vs-muted);
  margin: 0 0 10px;
}

/* Picture */
.vs-picwrap {
  width: 100%;
  max-width: 340px;
  margin: 0 auto 14px;
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--vs-shadow);
  border: 1px solid rgba(109, 40, 217, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  max-height: min(38vh, 280px);
}
html[data-theme="dark"] .vs-picwrap { background: #111827; }
.vs-pic {
  width: 100%;
  height: auto;
  max-height: min(38vh, 280px);
  display: block;
  object-fit: contain;
  object-position: center;
}

/* Question prompt */
.vs-prompt {
  text-align: center;
  margin: 0 0 8px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--vs-text);
  line-height: 1.35;
}
.vs-type-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--vs-purple-soft);
  color: var(--vs-purple);
  margin-bottom: 8px;
}

/* Heard transcript */
.vs-heard {
  text-align: center;
  min-height: 1.5em;
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--vs-muted);
  transition: color 0.2s;
}
.vs-heard.is-listening { color: var(--vs-mic-listening); }
.vs-heard.is-ok { color: var(--vs-green); }
.vs-heard.is-bad { color: var(--vs-red); }

/* Mic button */
.vs-mic-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin: 8px 0 18px;
}
.vs-mic-btn {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: var(--vs-mic);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(109, 40, 217, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s;
  position: relative;
  -webkit-user-select: none;
  user-select: none;
}
.vs-mic-btn:active { transform: scale(0.94); }
.vs-mic-btn svg {
  width: 36px;
  height: 36px;
  fill: currentColor;
}
.vs-mic-btn.is-listening {
  background: var(--vs-mic-listening);
  box-shadow: 0 8px 28px rgba(220, 38, 38, 0.45);
  animation: vs-pulse 1.2s ease-in-out infinite;
}
.vs-mic-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}
@keyframes vs-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.45); }
  50% { box-shadow: 0 0 0 18px rgba(220, 38, 38, 0); }
}
.vs-mic-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--vs-muted);
}

/* Feedback */
.vs-fb {
  text-align: center;
  min-height: 1.4em;
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--vs-muted);
}
.vs-fb.is-ok { color: var(--vs-green); }
.vs-fb.is-bad { color: var(--vs-red); }

/* Buttons */
.vs-btn {
  appearance: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: 14px;
  background: var(--vs-purple);
  color: #fff;
  box-shadow: 0 6px 16px rgba(109, 40, 217, 0.28);
  min-height: 48px;
  transition: transform 0.12s ease;
}
.vs-btn:active { transform: scale(0.97); }
.vs-btn.secondary {
  background: var(--vs-card);
  color: var(--vs-text);
  border: 1px solid rgba(109, 40, 217, 0.18);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
}
.vs-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Start / bridge / done */
.vs-start, .vs-done {
  text-align: center;
  padding: 24px 8px 16px;
}
.vs-hero {
  font-size: 3.2rem;
  line-height: 1;
  margin-bottom: 12px;
}
.vs-start h1, .vs-done h1 {
  margin: 0 0 8px;
  font-size: clamp(1.4rem, 5vw, 1.75rem);
  font-weight: 800;
}
.vs-sub {
  margin: 0 auto 18px;
  max-width: 340px;
  color: var(--vs-muted);
  font-size: 0.98rem;
  line-height: 1.45;
}
.vs-tips {
  list-style: none;
  margin: 0 auto 22px;
  padding: 0;
  max-width: 300px;
  text-align: left;
  color: var(--vs-muted);
  font-size: 0.92rem;
}
.vs-tips li {
  padding: 6px 0 6px 22px;
  position: relative;
}
.vs-tips li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--vs-green);
  font-weight: 700;
}

/* Unsupported banner */
.vs-unsupported {
  background: #fef2f2;
  color: #991b1b;
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 0.9rem;
  margin: 12px 0;
  text-align: center;
}
html[data-theme="dark"] .vs-unsupported {
  background: rgba(220, 38, 38, 0.15);
  color: #fca5a5;
}

/* Skip / next */
.vs-skip {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--vs-muted);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
  font-weight: 600;
}

@media (min-width: 640px) {
  .vs-game { max-width: 520px; padding: 18px 20px 40px; }
  .vs-picwrap {
    max-width: 380px;
    min-height: 200px;
    max-height: min(42vh, 320px);
  }
  .vs-pic { max-height: min(42vh, 320px); }
  .vs-mic-btn { width: 96px; height: 96px; }
  .vs-mic-btn svg { width: 40px; height: 40px; }
  .vs-prompt { font-size: 1.3rem; }
}

@media (max-height: 500px) and (orientation: landscape) {
  .vs-picwrap {
    min-height: 90px;
    max-height: 26vh;
  }
  .vs-pic { max-height: 26vh; }
  .vs-mic-btn { width: 64px; height: 64px; }
  .vs-mic-btn svg { width: 28px; height: 28px; }
}