:root {
  --bg: #f6f3ee;
  --bg-glow: #efe7da;
  --surface: #ffffff;
  --ink: #1c1a17;
  --muted: #6b6560;
  --accent: #1f6f5b;
  --accent-soft: #d8efe7;
  --border: #e4ddd4;
  --shadow: 0 8px 24px rgba(28, 26, 23, 0.06);
  --btn-bg: #ffffff;
  --line-bg: #fcfbf9;
  --popup-bg: #1c1a17;
  --popup-ink: #ffffff;
  --error-bg: #fdeceb;
  --error-ink: #8a1f1b;
  --error-border: #f3c4c0;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  color-scheme: light;
}

html[data-theme="dark"] {
  --bg: #12141a;
  --bg-glow: #1a2430;
  --surface: #1c212b;
  --ink: #e8eaef;
  --muted: #9aa3b2;
  --accent: #5ec4a8;
  --accent-soft: #24352f;
  --border: #2c3444;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --btn-bg: #252b36;
  --line-bg: #171b24;
  --popup-bg: #0e1016;
  --popup-ink: #f2f4f8;
  --error-bg: #3a1f22;
  --error-ink: #ffb4ae;
  --error-border: #5c2f33;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, var(--bg-glow) 0, transparent 40%),
    var(--bg);
  line-height: 1.5;
  min-height: 100vh;
  transition: background 0.2s ease, color 0.2s ease;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  width: min(720px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  padding: 1.75rem 0 1rem;
}

.header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.theme-toggle {
  flex-shrink: 0;
  margin-top: 0.15rem;
  min-width: 2.5rem;
}

.eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: clamp(1.6rem, 5vw, 2.1rem);
  line-height: 1.2;
}

.lede {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.section-title {
  margin: 0;
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--muted);
}

.card-list {
  display: grid;
  gap: 0.85rem;
  margin: 1rem 0 2rem;
}

.card {
  display: block;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: inherit;
  transition: transform 0.12s ease, border-color 0.12s ease;
}

.card:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  text-decoration: none;
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.panel {
  margin: 1.25rem 0;
  padding: 1rem 1.05rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.05);
}

.btn-ghost {
  padding: 0.3rem 0.7rem;
  font-size: 0.85rem;
}

.lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.line {
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--line-bg);
}

.line-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}

.line-fr {
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.55;
}

.line-en {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.token {
  display: inline;
  border: none;
  background: transparent;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  border-radius: 4px;
}

.token:hover,
.token:focus-visible {
  background: var(--accent-soft);
  outline: none;
}

.token.is-active {
  background: var(--accent);
  color: #fff;
}

.punct {
  white-space: pre;
}

.prompt-list {
  margin: 0.75rem 0 0;
  padding-left: 1.15rem;
}

.prompt-list li { margin: 0.35rem 0; }

.notes { margin: 0.6rem 0 0; color: var(--muted); }

.hint {
  font-size: 0.9rem;
  margin: 0 0 2rem;
}

.muted { color: var(--muted); }

.site-footer {
  padding: 1rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.word-popup {
  position: sticky;
  top: 0.75rem;
  z-index: 10;
  margin: 0 0 1rem;
  padding: 0.75rem 0.95rem;
  background: var(--popup-bg);
  color: var(--popup-ink);
  border-radius: 12px;
  box-shadow: var(--shadow);
  font-size: 0.98rem;
}

.word-popup .ipa {
  opacity: 0.85;
  margin-inline: 0.35rem;
}

.word-popup .en {
  opacity: 0.95;
}

.error {
  padding: 1rem;
  border-radius: var(--radius);
  background: var(--error-bg);
  color: var(--error-ink);
  border: 1px solid var(--error-border);
}

@media (max-width: 480px) {
  .panel-head {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-primary { width: 100%; }
}


.playback-control {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.playback-control select {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  color: var(--ink);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font: inherit;
  font-size: 0.88rem;
  cursor: pointer;
}