:root {
  --green: #499D6D;
  --pink: #F593A0;
  --blue: #425582;
  --yellow1: #EDD3A0;
  --yellow2: #FAECC1;
  --grey: #D9D9D9;
  --lightblue: #93A1C3;
  --white: #FFFFFF;
  --ink: #26262E;
  --ink-soft: #5B5B66;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 8px 24px rgba(37, 41, 64, 0.08);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
}

* { box-sizing: border-box; }

body {
  font-family: 'Barlow', sans-serif;
  background: var(--white);
  color: var(--ink);
  margin: 0;
  line-height: 1.6;
}

h1, h2, h3, .eyebrow, .tag-right, .tag-wrong, .level-num, .hint-btn, .btn-start, .btn-secondary {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Header */
.site-header {
  text-align: center;
  padding: var(--space-4) var(--space-2) var(--space-3);
  background: var(--blue);
  color: #fff;
}
.site-header h1 { margin: 0; font-size: 2.5rem; }
.site-header h1 a { color: inherit; text-decoration: none; }
.site-header .tagline {
  font-family: 'Barlow', sans-serif;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  opacity: 0.85;
  margin: 0.5rem 0 0;
}

main#app {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-3) var(--space-2) var(--space-4);
}

/* Level select */
.chapter { margin-bottom: var(--space-4); }
.chapter h2 { font-size: 1.15rem; color: var(--accent, var(--blue)); margin: 0 0 var(--space-2); }
.chapter.accent-green { --accent: var(--green); }
.chapter.accent-pink { --accent: var(--pink); }
.chapter.accent-blue { --accent: var(--blue); }
.chapter.accent-yellow { --accent: #C9A24D; }
.chapter.accent-lightblue { --accent: var(--lightblue); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-2);
}

.level-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  background: #fff;
  border: 2px solid #EEE;
  border-top: 6px solid var(--accent, var(--blue));
  border-radius: var(--radius);
  padding: var(--space-2);
  text-decoration: none;
  color: var(--ink);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease;
  min-height: 110px;
}
.level-card:hover { transform: translateY(-3px); }
.level-card.locked { opacity: 0.55; cursor: default; box-shadow: none; border-top-color: var(--grey); }
.level-num { font-size: 1.5rem; color: var(--accent, var(--blue)); }
.level-card h3 {
  font-family: 'Barlow', sans-serif;
  font-weight: 700;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.95rem;
  margin: 0;
}
.stars .star { color: var(--grey); font-size: 1rem; }
.stars .star.filled { color: var(--yellow1); }
.lock { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; color: var(--ink-soft); }

.reset-btn { margin-top: var(--space-3); }
.link-btn {
  background: none;
  border: none;
  color: var(--blue);
  font-family: 'Barlow', sans-serif;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  font-size: 1rem;
}

/* Intro */
.intro-panel { max-width: 600px; margin: 0 auto; }
.back-link { display: inline-block; margin-bottom: var(--space-2); color: var(--blue); text-decoration: none; font-weight: 600; }
.eyebrow { color: var(--ink-soft); font-size: 0.75rem; margin: 0 0 0.25rem; }
.intro-panel h2 { font-size: 1.75rem; margin: 0 0 var(--space-2); }
.rule-explanation { font-size: 1.05rem; line-height: 1.7; }
.example { background: var(--yellow2); border-radius: var(--radius-sm); padding: var(--space-2); margin: var(--space-2) 0; }
.example p { margin: 0.35rem 0; }
.tag-right, .tag-wrong { display: inline-block; font-size: 0.6rem; padding: 2px 8px; border-radius: 4px; margin-right: 0.5rem; vertical-align: middle; }
.tag-right { background: var(--green); color: #fff; }
.tag-wrong { background: var(--pink); color: #fff; }

.btn-start, .btn-secondary {
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.9rem 1.6rem;
  font-size: 0.95rem;
  cursor: pointer;
}
.btn-start { background: var(--green); color: #fff; }
.btn-start:hover { background: #3F8A5D; }
.btn-secondary { background: var(--grey); color: var(--ink); }
.btn-secondary:hover { background: #C7C7C7; }

/* Game */
.hud { display: flex; align-items: center; gap: var(--space-2); margin-bottom: var(--space-3); flex-wrap: wrap; }
.progress-bar { flex: 1; min-width: 120px; height: 10px; background: var(--grey); border-radius: 6px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--green); width: 0%; transition: width 0.25s ease; }
.progress-text { font-size: 0.85rem; color: var(--ink-soft); min-width: 44px; }
.hint-btn {
  background: var(--lightblue);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  cursor: pointer;
}
.hint-btn:disabled { background: var(--grey); cursor: not-allowed; }

.passage { font-size: 1.35rem; line-height: 2.4; }
.token {
  font-family: 'Barlow', sans-serif;
  font-weight: 700;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0 2px;
  border-radius: 4px;
  color: var(--pink);
  min-width: 14px;
  display: inline-block;
}
.token.gap { color: var(--ink-soft); opacity: 0.5; font-size: 1rem; }
.token:hover:not(:disabled) { background: var(--yellow2); }
.token.settled.correct { color: var(--blue); opacity: 1; cursor: default; background: none; animation: pop 0.25s ease; }
.token.gap-empty { min-width: 0; padding: 0; }
.token.pretaught { color: var(--ink); font-weight: 400; opacity: 1; cursor: default; }
.token.hinted { animation: pulse 1.2s ease 2; }
.token.revealed { color: var(--pink); }
.token.shake { animation: shake 0.3s ease; background: var(--yellow2); }

@keyframes pop { 0% { transform: scale(1.5); } 100% { transform: scale(1); } }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(147, 161, 195, 0.6); }
  50% { box-shadow: 0 0 0 6px rgba(147, 161, 195, 0); }
}

.hint-toast { margin-top: var(--space-2); font-size: 0.9rem; color: var(--blue); min-height: 1.2em; opacity: 0; transition: opacity 0.2s; }
.hint-toast.visible { opacity: 1; }

/* Palette popover */
.palette {
  position: absolute;
  z-index: 50;
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 32px rgba(37, 41, 64, 0.2);
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 190px;
  max-width: min(280px, calc(100vw - 32px));
}
.palette-btn {
  border: none;
  background: #F5F5F7;
  border-radius: 6px;
  padding: 0.55rem 0.75rem;
  text-align: left;
  font-family: 'Barlow', sans-serif;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
}
.palette-btn:hover { background: var(--yellow2); }
.palette-btn.cat-terminal { border-left: 4px solid var(--blue); }
.palette-btn.cat-pause { border-left: 4px solid var(--green); }
.palette-btn.cat-quote { border-left: 4px solid var(--pink); }
.palette-btn.cat-none { border-left: 4px solid var(--grey); }

/* Summary */
.summary-panel { max-width: 500px; margin: 0 auto; text-align: center; }
.stars.big .star { font-size: 2rem; }
.stat-list { list-style: none; padding: 0; margin: var(--space-3) 0; display: flex; justify-content: space-around; }
.stat-list li { display: flex; flex-direction: column; gap: 4px; }
.stat-list span { font-size: 0.7rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-list strong { font-size: 1.4rem; color: var(--blue); font-family: 'Outfit', sans-serif; }
.retry-note { color: var(--ink-soft); }
.summary-actions { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; margin-top: var(--space-2); }

@media (max-width: 600px) {
  .site-header { padding: var(--space-3) var(--space-2) var(--space-2); }
  .site-header h1 { font-size: 1.8rem; }
  .passage { font-size: 1.15rem; line-height: 2.2; }
  main#app { padding: var(--space-2); }
  .stat-list { gap: var(--space-2); }
}