:root {
  --bg-app: #f1f5f9;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-sub: #64748b;
  --accent: #2563eb;
  --accent-active: #1d4ed8;
  --border: #e2e8f0;
  --exit-bg: #fef2f2;
  --exit-border: #fecaca;
  --exit-text: #991b1b;
  --toast-bg: #0f172a;
  --toast-text: #ffffff;
  
  /* 風險標籤（淺色模式） */
  --risk-low-bg: #e0f2fe;
  --risk-low-text: #0369a1;
  --risk-med-bg: #fef3c7;
  --risk-med-text: #b45309;
  --risk-high-bg: #fee2e2;
  --risk-high-text: #b91c1c;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-app: #090d16;
    --bg-card: #131b2e;
    --text-main: #f8fafc;
    --text-sub: #94a3b8;
    --accent: #3b82f6;
    --accent-active: #60a5fa;
    --border: #1e293b;
    --exit-bg: #2d1517;
    --exit-border: #4c1d1f;
    --exit-text: #fca5a5;
    --toast-bg: #1e293b;
    --toast-text: #f8fafc;

    /* 風險標籤（深色模式專屬調和） */
    --risk-low-bg: #0c4a6e;
    --risk-low-text: #7dd3fc;
    --risk-med-bg: #78350f;
    --risk-med-text: #fcd34d;
    --risk-high-bg: #7f1d1d;
    --risk-high-text: #fca5a5;
  }
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", sans-serif;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
  -webkit-font-smoothing: antialiased;
}

.card-container {
  background: var(--bg-card);
  max-width: 420px;
  width: 100%;
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 24px 20px;
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.brand {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.lang-selector {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-sub);
  transition: background 0.15s ease, color 0.15s ease;
}

.lang-btn.active {
  background: var(--accent);
  color: #ffffff;
}

.scenarios-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.script-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: fadeIn 0.25s ease;
}

@media (prefers-reduced-motion: reduce) {
  .script-block {
    animation: none;
  }
}

.script-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.meta-group {
  display: flex;
  gap: 6px;
  align-items: center;
}

.attempt-badge {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-sub);
  background: rgba(100, 116, 139, 0.1);
  padding: 1px 5px;
  border-radius: 4px;
}

.role-tag {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
}

.risk-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.2px;
}
.risk-low { background: var(--risk-low-bg); color: var(--risk-low-text); }
.risk-medium { background: var(--risk-med-bg); color: var(--risk-med-text); }
.risk-high { background: var(--risk-high-bg); color: var(--risk-high-text); }

.script-quote {
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.5;
  text-wrap: balance;
  background: rgba(37, 99, 235, 0.04);
  padding: 9px 12px;
  border-left: 4px solid var(--accent);
  border-radius: 4px 8px 8px 4px;
}

.script-silent {
  font-size: 0.74rem;
  color: var(--text-sub);
  background: rgba(100, 116, 139, 0.06);
  padding: 6px 10px;
  border-radius: 6px;
  line-height: 1.35;
}

.script-exit-rule {
  font-size: 0.72rem;
  color: var(--text-sub);
  line-height: 1.4;
  padding-left: 2px;
  opacity: 0.9;
}

.btn-toggle {
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.btn-toggle:hover {
  background: rgba(37, 99, 235, 0.04);
}

.exit-block {
  background: var(--exit-bg);
  border: 1px solid var(--exit-border);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exit-title {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--exit-text);
}

.exit-content {
  font-size: 0.75rem;
  color: var(--exit-text);
  line-height: 1.4;
  opacity: 0.95;
}

.action-bar {
  display: flex;
  gap: 8px;
}

.btn-action {
  flex: 1;
  padding: 10px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
  user-select: none;
}

.btn-action.primary {
  background: var(--accent);
  color: #ffffff;
  border: none;
}
.btn-action.primary:active {
  background: var(--accent-active);
}

.btn-action.secondary {
  background: rgba(100, 116, 139, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border);
}
.btn-action.secondary:active {
  background: rgba(100, 116, 139, 0.16);
}

.btn-action:focus-visible,
.lang-btn:focus-visible,
.btn-toggle:focus-visible,
.feedback-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.feedback-box {
  text-align: center;
}

.feedback-link {
  font-size: 0.72rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.feedback-link:hover {
  text-decoration: underline;
}

/* Toast：已移除 animation 屬性，交由 WAAPI 控制 */
.toast {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translate(-50%, 0);
  background: var(--toast-bg);
  color: var(--toast-text);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  pointer-events: none;
  white-space: normal;
  max-width: calc(100% - 48px);
  text-align: center;
  line-height: 1.4;
  z-index: 10;
  opacity: 0;
}

.toast.fallback-show {
  opacity: 1;
}

.card-footer {
  border-top: 1px solid var(--border);
  padding-top: 8px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-note {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-sub);
}

.footer-legal {
  font-size: 0.65rem;
  color: var(--text-sub);
  opacity: 0.8;
}

.empty-state {
  font-size: 0.8rem;
  color: var(--text-sub);
  text-align: center;
  padding: 16px;
}