/* Plural -s Sound Match · Teen2Teen 1 Unit 10 */
:root {
  --ps-bg: #f4f6fb;
  --ps-card: #ffffff;
  --ps-text: #1e1b4b;
  --ps-muted: #64748b;
  --ps-purple: #6d28d9;
  --ps-purple-soft: rgba(109, 40, 217, 0.12);
  --ps-green: #16a34a;
  --ps-red: #dc2626;
  --ps-s: #2563eb;
  --ps-z: #db2777;
  --ps-iz: #059669;
  --ps-shadow: 0 10px 28px rgba(30, 27, 75, 0.08);
  --ps-radius: 18px;
}

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

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  min-height: 100dvh;
  background: var(--ps-bg) !important;
  color: var(--ps-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;
}

.ps-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 */
.ps-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.ps-back {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: var(--ps-card);
  color: var(--ps-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;
}
.ps-title {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ps-muted);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ps-badge {
  font-size: 12px;
  font-weight: 800;
  padding: 6px 11px;
  border-radius: 999px;
  background: var(--ps-purple-soft);
  color: var(--ps-purple);
  flex-shrink: 0;
}
.ps-stat {
  font-size: 12px;
  font-weight: 700;
  color: var(--ps-muted);
}

/* Progress */
.ps-progress {
  height: 5px;
  background: rgba(109, 40, 217, 0.1);
  border-radius: 3px;
  margin-bottom: 14px;
  overflow: hidden;
}
.ps-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #6d28d9, #a78bfa);
  width: 0%;
  transition: width 0.35s ease;
  border-radius: 3px;
}

/* Start */
.ps-start, .ps-done {
  text-align: center;
  padding: 20px 8px 16px;
}
.ps-hero {
  font-size: 3rem;
  line-height: 1;
  margin-bottom: 10px;
}
.ps-start h1, .ps-done h1 {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 5vw, 1.7rem);
  font-weight: 800;
}
.ps-sub {
  margin: 0 auto 16px;
  max-width: 340px;
  color: var(--ps-muted);
  font-size: 0.98rem;
  line-height: 1.45;
}

/* Sound preview chips on start */
.ps-sound-preview {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0 0 20px;
}
.ps-preview-btn {
  appearance: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  font-size: 1rem;
  padding: 12px 18px;
  border-radius: 14px;
  color: #fff;
  min-width: 88px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.12);
  transition: transform 0.12s ease;
}
.ps-preview-btn:active { transform: scale(0.95); }
.ps-preview-btn[data-sound="s"]  { background: var(--ps-s); }
.ps-preview-btn[data-sound="z"]  { background: var(--ps-z); }
.ps-preview-btn[data-sound="iz"] { background: var(--ps-iz); }
.ps-preview-btn small {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  opacity: 0.9;
  margin-top: 2px;
}

.ps-tips {
  list-style: none;
  margin: 0 auto 22px;
  padding: 0;
  max-width: 300px;
  text-align: left;
  color: var(--ps-muted);
  font-size: 0.92rem;
}
.ps-tips li {
  padding: 6px 0 6px 22px;
  position: relative;
}
.ps-tips li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--ps-green);
  font-weight: 700;
}

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

/* Play card */
.ps-card {
  background: var(--ps-card);
  border-radius: var(--ps-radius);
  box-shadow: var(--ps-shadow);
  border: 1px solid rgba(109, 40, 217, 0.1);
  padding: 16px 16px 18px;
  text-align: center;
  margin-bottom: 16px;
}
.ps-picwrap {
  width: 100%;
  max-width: 220px;
  margin: 0 auto 12px;
  border-radius: 14px;
  overflow: hidden;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  max-height: min(32vh, 220px);
}
html[data-theme="dark"] .ps-picwrap { background: #111827; }
.ps-pic {
  width: 100%;
  height: auto;
  max-height: min(32vh, 220px);
  object-fit: contain;
  display: block;
}
.ps-word {
  margin: 0 0 10px;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.ps-listen {
  appearance: none;
  border: none;
  cursor: pointer;
  background: var(--ps-purple-soft);
  color: var(--ps-purple);
  font: inherit;
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 16px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.12s ease;
}
.ps-listen:active { transform: scale(0.96); }
.ps-listen svg { width: 18px; height: 18px; fill: currentColor; }
.ps-listen.is-playing {
  background: var(--ps-purple);
  color: #fff;
}

/* Prompt */
.ps-prompt {
  text-align: center;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ps-muted);
  margin: 0 0 12px;
}

/* Sound choice buttons */
.ps-choices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}
.ps-choice {
  appearance: none;
  border: 2px solid transparent;
  cursor: pointer;
  font: inherit;
  border-radius: 16px;
  padding: 16px 8px;
  color: #fff;
  text-align: center;
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  transition: transform 0.12s ease, box-shadow 0.15s ease, opacity 0.2s;
  min-height: 88px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  position: relative;
  -webkit-user-select: none;
  user-select: none;
}
.ps-choice:active { transform: scale(0.96); }
.ps-choice[data-sound="s"]  { background: linear-gradient(160deg, #3b82f6, #1d4ed8); }
.ps-choice[data-sound="z"]  { background: linear-gradient(160deg, #ec4899, #be185d); }
.ps-choice[data-sound="iz"] { background: linear-gradient(160deg, #10b981, #047857); }
.ps-choice .ipa {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: 0.02em;
}
.ps-choice .hint {
  font-size: 0.72rem;
  font-weight: 600;
  opacity: 0.9;
}
.ps-choice .speaker {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 22px;
  height: 22px;
  opacity: 0.85;
}
.ps-choice .speaker svg { width: 100%; height: 100%; fill: currentColor; }
.ps-choice.is-ok {
  box-shadow: 0 0 0 3px #16a34a, 0 8px 20px rgba(0,0,0,0.12);
  transform: scale(1.04);
}
.ps-choice.is-bad {
  box-shadow: 0 0 0 3px #dc2626, 0 8px 20px rgba(0,0,0,0.12);
  opacity: 0.85;
  animation: ps-shake 0.35s ease;
}
.ps-choice:disabled { cursor: default; }

@keyframes ps-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* Feedback */
.ps-fb {
  text-align: center;
  min-height: 1.4em;
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--ps-muted);
}
.ps-fb.is-ok { color: var(--ps-green); }
.ps-fb.is-bad { color: var(--ps-red); }

@media (min-width: 640px) {
  .ps-game { max-width: 520px; padding: 18px 20px 40px; }
  .ps-picwrap { max-width: 260px; min-height: 160px; }
  .ps-choice { min-height: 100px; }
  .ps-choice .ipa { font-size: 1.5rem; }
}

@media (max-height: 520px) and (orientation: landscape) {
  .ps-picwrap { min-height: 80px; max-height: 22vh; }
  .ps-pic { max-height: 22vh; }
  .ps-choice { min-height: 64px; padding: 10px 6px; }
  .ps-word { font-size: 1.15rem; }
}