/* ────────────────────────────────────────────────────────────
   Glossary — page-specific styles (builds on style.css vars)
   ──────────────────────────────────────────────────────────── */

/* ── Missing tokens not defined in style.css ────────────── */
:root {
  /* Spacing scale (4-point base, matches Tailwind-style naming) */
  --space-2:  0.5rem;    /*  8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */

  /* Surface colour (white card backgrounds) */
  --surface:  #ffffff;
}

/* ── Shared glossary utilities ─────────────────────────── */
.glossary-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.glossary-breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.glossary-breadcrumb a:hover { color: var(--primary); }
.glossary-breadcrumb .sep { opacity: 0.5; }
.glossary-breadcrumb .current { color: var(--text); font-weight: 500; }

/* ── Main glossary page ─────────────────────────────────── */
.glossary-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: #fff;
  padding: var(--space-16) 0 var(--space-12);
  text-align: center;
}
.glossary-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-4);
  line-height: 1.15;
}
.glossary-hero p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin: 0 auto var(--space-8);
  line-height: 1.7;
}

/* Search bar on main page */
.glossary-search-wrap {
  max-width: 520px;
  margin: 0 auto;
  position: relative;
}
.glossary-search {
  width: 100%;
  padding: 0.9rem 1.1rem 0.9rem 3rem;
  border: none;
  border-radius: 999px;
  font-size: 0.95rem;
  background: rgba(255,255,255,0.12);
  color: #fff;
  outline: none;
  transition: background 0.2s;
  box-sizing: border-box;
}
.glossary-search::placeholder { color: rgba(255,255,255,0.5); }
.glossary-search:focus { background: rgba(255,255,255,0.2); }
.glossary-search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,0.5);
  pointer-events: none;
}

/* Category grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}
.category-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}
.category-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
  border-color: var(--primary);
  text-decoration: none;
}
.category-card__icon {
  font-size: 2rem;
  line-height: 1;
}
.category-card__name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}
.category-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}
.category-card__meta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* All-terms listing (search results) */
.all-terms-section { margin-top: var(--space-12); }
.all-terms-section h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: var(--space-6);
  color: var(--text);
}
.term-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-3);
}
.term-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  text-decoration: none;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s;
}
.term-chip:hover {
  background: #f0f7ff;
  border-color: var(--primary);
  color: var(--primary);
  text-decoration: none;
}
.term-chip .cat-badge {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-left: auto;
}

/* ── Category page — gradient banner hero ───────────────── */
.cat-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1a3a5c 45%, #1a6ea8 100%);
  color: #fff;
  padding: var(--space-12) 0 var(--space-10);
  position: relative;
  overflow: hidden;
}
/* subtle dot-grid texture */
.cat-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
.cat-banner__breadcrumb {
  margin-bottom: var(--space-8);
}
.cat-banner__breadcrumb a,
.cat-banner__breadcrumb .sep,
.cat-banner__breadcrumb .current {
  color: rgba(255,255,255,0.6);
}
.cat-banner__breadcrumb a:hover { color: #fff; }
.cat-banner__breadcrumb .current { color: rgba(255,255,255,0.9); font-weight: 600; }
.cat-banner__body {
  text-align: center;
  position: relative;
  z-index: 1;
}
.cat-banner__icon {
  font-size: 3.5rem;
  line-height: 1;
  margin-bottom: var(--space-4);
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.3));
}
.cat-banner__title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: #fff;
  line-height: 1.15;
  margin-bottom: var(--space-4);
}
.cat-banner__desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.72);
  max-width: 600px;
  margin: 0 auto var(--space-6);
  line-height: 1.75;
}
.cat-banner__pill {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  padding: 0.3rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  backdrop-filter: blur(6px);
}

/* ── Category body layout ────────────────────────────────── */
.cat-body {
  padding-top: var(--space-10);
  padding-bottom: var(--space-16);
}

/* ── Terms gradient container ────────────────────────────── */
.cat-terms-wrapper {
  background: linear-gradient(145deg, #f0f7ff 0%, #fafcff 55%, #fff8f0 100%);
  border: 1px solid #d1e4f5;
  border-radius: 20px;
  padding: var(--space-8);
  box-shadow: 0 6px 40px rgba(26,110,168,0.07), 0 1px 0 rgba(255,255,255,0.9) inset;
}
.cat-terms-wrapper__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid #d1e4f5;
}
.cat-terms-wrapper__title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
}
.cat-terms-wrapper__count {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
  background: #dbeafe;
  border-radius: 999px;
  padding: 0.15rem 0.7rem;
}

/* ── Term card grid ──────────────────────────────────────── */
.cat-term-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-3);
}
.cat-term-card {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  background: #fff;
  border: 1px solid #dde8f5;
  border-radius: 14px;
  padding: var(--space-4) var(--space-5);
  text-decoration: none;
  color: var(--text);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s, background 0.2s;
}
/* accent stripe on top */
.cat-term-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #38bdf8);
  opacity: 0;
  transition: opacity 0.2s;
}
.cat-term-card:hover {
  border-color: #93c5fd;
  box-shadow: 0 6px 24px rgba(26,110,168,0.14);
  transform: translateY(-3px);
  background: linear-gradient(160deg, #f0f7ff 0%, #fff 100%);
  text-decoration: none;
}
.cat-term-card:hover::before { opacity: 1; }
.cat-term-card__name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  line-height: 1.3;
}
.cat-term-card:hover .cat-term-card__name { color: var(--primary); }
.cat-term-card__pos {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
}
.cat-term-card__arrow {
  margin-top: var(--space-3);
  color: var(--text-light);
  width: 14px;
  height: 14px;
  transition: transform 0.2s, color 0.2s;
}
.cat-term-card:hover .cat-term-card__arrow {
  transform: translateX(4px);
  color: var(--primary);
}

/* ── Other categories strip ──────────────────────────────── */
.other-cats {
  margin-top: var(--space-12);
}
.other-cats__title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: var(--space-4);
}
.other-cats__grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.other-cat-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
}
.other-cat-chip:hover {
  background: #eff6ff;
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 2px 8px rgba(26,110,168,0.12);
  text-decoration: none;
}
.other-cat-chip__icon { font-size: 1.05rem; line-height: 1; }
.other-cat-chip__name { font-weight: 600; }

/* ── Term detail page ───────────────────────────────────── */
.term-page { max-width: 740px; margin: 0 auto; }

.term-header { margin-bottom: var(--space-6); }
.term-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: var(--space-3);
}
.term-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.88rem;
}
.term-pronunciation {
  font-family: 'Courier New', monospace;
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.2rem 0.6rem;
  color: var(--text);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
.term-pos {
  color: var(--text-light);
  font-style: italic;
}
.term-category-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  padding: 0.2rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #1d4ed8;
  text-decoration: none;
}
.term-category-link:hover { background: #dbeafe; text-decoration: none; }

/* Definition and example sections */
.term-section { margin-bottom: var(--space-8); }
.term-section h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}
.term-section p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: var(--space-4);
}
.term-section p:last-child { margin-bottom: 0; }

/* Example box */
.example-box {
  background: #f8fafc;
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--space-5) var(--space-6);
  font-style: italic;
  color: var(--text);
}
.example-box p {
  margin-bottom: var(--space-3);
  font-size: 0.97rem;
  line-height: 1.8;
}
.example-box p:last-child { margin-bottom: 0; }

/* Related terms */
.related-terms { margin-top: var(--space-10); }
.related-terms h3 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: var(--space-4);
}
.related-terms__chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.related-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.related-chip:hover {
  background: #eff6ff;
  border-color: var(--primary);
  color: var(--primary);
  text-decoration: none;
}

/* Term page sidebar layout */
@media (min-width: 900px) {
  .term-layout {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: var(--space-10);
    align-items: start;
  }
}
.term-sidebar { display: flex; flex-direction: column; gap: var(--space-6); }
.sidebar-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.sidebar-box h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: var(--space-3);
}
.sidebar-term-list { list-style: none; padding: 0; margin: 0; }
.sidebar-term-list li { border-bottom: 1px solid var(--border); }
.sidebar-term-list li:last-child { border-bottom: none; }
.sidebar-term-list a {
  display: block;
  padding: 0.55rem 0;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: color 0.15s;
}
.sidebar-term-list a:hover { color: var(--primary); }

/* Not-found state */
.glossary-not-found {
  text-align: center;
  padding: var(--space-16) var(--space-4);
}
.glossary-not-found h2 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  margin-bottom: var(--space-4);
  color: var(--text);
}
.glossary-not-found p {
  color: var(--text-muted);
  margin-bottom: var(--space-6);
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .category-grid { grid-template-columns: 1fr; }
  .term-grid { grid-template-columns: 1fr; }
  .cat-term-grid { grid-template-columns: 1fr 1fr; }
  .cat-terms-wrapper { padding: var(--space-5); }
  .cat-banner { padding: var(--space-8) 0 var(--space-6); }
}
@media (max-width: 400px) {
  .cat-term-grid { grid-template-columns: 1fr; }
}