/* ======================================================================
   NorthArc — /glossary stylesheet
   Loaded after briefing.css. Briefing.css supplies the shared header,
   footer, wordmark, and skip-link styles. This file owns everything
   inside <body class="glossary-page">.
   ====================================================================== */

:root {
  --gloss-cream:    #F5F1E8;
  --gloss-bone:     #FAF7F2;
  --gloss-card:     #FFFFFF;
  --gloss-card-bd:  #E5E1D5;
  --gloss-rule:     #D6D0C0;
  --gloss-tag-bg:   #EEF2FF;
  --gloss-ink:      #0F172A;
  --gloss-body:     #475569;
  --gloss-muted:    #94A3B8;
  --gloss-arc:      #4F46E5;
  --gloss-arc-dk:   #818CF8;     /* indigo on dark surface */
  --gloss-dark:     #07080F;
  --gloss-dark-mu:  #9CA3AF;
}

body.glossary-page { background: var(--gloss-cream); color: var(--gloss-ink); }

/* ── Hero ──────────────────────────────────────────────────────────── */

.glossary-hero {
  padding: 80px 0 48px;
  background: var(--gloss-cream);
}
.glossary-hero-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 1024px) { .glossary-hero-inner { padding: 0 40px; } }

.glossary-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--gloss-arc);
  text-transform: uppercase;
  margin: 0 0 24px;
}
.glossary-eyebrow .rule {
  display: inline-block;
  width: 60px;
  height: 1px;
  background: var(--gloss-arc);
  opacity: 0.35;
}

.glossary-headline {
  font-size: 38px;
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.1;
  color: var(--gloss-ink);
  max-width: 720px;
  margin: 0 0 24px;
}
.glossary-headline em.accent {
  font-style: italic;
  color: var(--gloss-arc);
}
@media (max-width: 1023px) { .glossary-headline { font-size: 30px; } }
@media (max-width: 767px)  { .glossary-headline { font-size: 24px; } }

.glossary-standfirst {
  font-size: 17px;
  line-height: 1.55;
  color: var(--gloss-body);
  max-width: 640px;
  margin: 0 0 32px;
}

/* ── Search input ──────────────────────────────────────────────────── */

.glossary-search-wrap {
  position: relative;
  max-width: 520px;
  margin: 0 0 24px;
}
.glossary-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--gloss-muted);
  pointer-events: none;
}
.glossary-search {
  width: 100%;
  height: 48px;
  background: #FFFFFF;
  border: 1px solid var(--gloss-card-bd);
  border-radius: 8px;
  padding: 0 16px 0 44px;
  font: 400 14px/1.4 'Geist', ui-sans-serif, system-ui, sans-serif;
  color: var(--gloss-ink);
  transition: border-color 200ms cubic-bezier(0.2, 0, 0, 1);
}
.glossary-search::placeholder { color: var(--gloss-muted); }
.glossary-search:focus {
  outline: none;
  border-color: var(--gloss-arc);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

/* ── Category filter pills ────────────────────────────────────────── */

.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 32px;
}
.category-pill {
  font: 500 12px/1 'Geist', ui-sans-serif, system-ui, sans-serif;
  letter-spacing: 0.02em;
  padding: 6px 14px;
  border-radius: 20px;
  background: transparent;
  color: var(--gloss-body);
  border: 1px solid var(--gloss-rule);
  cursor: pointer;
  transition: border-color 200ms cubic-bezier(0.2, 0, 0, 1),
              background-color 200ms cubic-bezier(0.2, 0, 0, 1),
              color 200ms cubic-bezier(0.2, 0, 0, 1);
}
.category-pill:hover { border-color: var(--gloss-body); }
.category-pill.active {
  background: var(--gloss-arc);
  color: #FFFFFF;
  border-color: var(--gloss-arc);
}

/* ── Alphabet jump nav ────────────────────────────────────────────── */

.alphabet-nav-wrap {
  border-top: 0.5px solid var(--gloss-rule);
  padding-top: 20px;
  margin-top: 12px;
}
.alphabet-nav-eyebrow {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gloss-muted);
  margin: 0 0 12px;
}
.alphabet-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}
.alphabet-nav a,
.alphabet-nav span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 4px;
  text-decoration: none;
  transition: background-color 200ms cubic-bezier(0.2, 0, 0, 1);
}
.alphabet-nav a {
  color: var(--gloss-arc);
  cursor: pointer;
}
.alphabet-nav a:hover { background: var(--gloss-tag-bg); }
.alphabet-nav span {
  color: var(--gloss-muted);
  cursor: default;
}

/* ── Glossary body ─────────────────────────────────────────────────── */

.glossary-body {
  background: var(--gloss-cream);
  padding: 32px 0 80px;
}
.glossary-body-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 1024px) { .glossary-body-inner { padding: 0 40px; } }

.glossary-letter-group { margin: 0 0 32px; }
.glossary-letter-group:last-child { margin-bottom: 0; }

.letter-divider {
  font-size: 64px;
  font-weight: 300;
  letter-spacing: -0.02em;
  color: var(--gloss-muted);
  line-height: 1;
  margin: 0 0 24px;
  scroll-margin-top: 96px;
}
@media (max-width: 767px) { .letter-divider { font-size: 48px; margin-bottom: 16px; } }

/* ── Entry card ────────────────────────────────────────────────────── */

.glossary-entry {
  background: var(--gloss-card);
  border: 1px solid var(--gloss-card-bd);
  border-radius: 12px;
  padding: 28px 32px;
  margin: 0 0 16px;
  scroll-margin-top: 96px;
  max-width: 880px;
}
.glossary-entry:last-child { margin-bottom: 0; }
@media (max-width: 767px) {
  .glossary-entry { padding: 22px 20px; border-radius: 10px; }
}

.glossary-entry .category-tags {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 12px;
}
.glossary-entry .tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  background: var(--gloss-tag-bg);
  color: var(--gloss-arc);
  font: 500 10px/1.3 'Geist', ui-sans-serif, system-ui, sans-serif;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 12px;
}

.glossary-entry .term-name {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--gloss-ink);
  margin: 0 0 12px;
  line-height: 1.25;
}

.glossary-entry .definition {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--gloss-ink);
  margin: 0 0 16px;
}
.glossary-entry .definition strong { font-weight: 500; }

.glossary-entry .expansion {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--gloss-body);
  margin: 0 0 16px;
}
.glossary-entry .expansion p:not(:last-child) { margin-bottom: 12px; }

/* Visible flag for [TECHNICAL: ...] placeholders inside expansion blocks.
   Mirrors the briefing-page convention so Stephen can spot fill-ins. */
.glossary-entry .expansion .placeholder-needed {
  display: block;
  background: #FEF9C3;
  border-left: 3px solid #CA8A04;
  padding: 10px 14px;
  margin: 8px 0;
  border-radius: 2px;
  font-family: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.55;
  color: #422006;
}
.glossary-entry .expansion .placeholder-needed::before {
  content: 'TECHNICAL INPUT NEEDED — ';
  font-weight: 600;
  color: #854D0E;
  letter-spacing: 0.04em;
}

.glossary-entry .related-terms {
  border-top: 0.5px solid var(--gloss-card-bd);
  padding-top: 14px;
  margin-top: 14px;
}
.glossary-entry .related-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gloss-muted);
  margin: 0 0 8px;
}
.glossary-entry .related-list {
  font-size: 13px;
  font-weight: 400;
  line-height: 1.6;
}
.glossary-entry .related-list a {
  color: var(--gloss-arc);
  text-decoration: none;
  transition: color 200ms cubic-bezier(0.2, 0, 0, 1);
}
.glossary-entry .related-list a:hover {
  color: var(--gloss-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.glossary-entry .related-list .separator {
  color: var(--gloss-muted);
  margin: 0 6px;
}

/* Inline source links inside expansion paragraphs */
.glossary-entry .expansion a {
  color: var(--gloss-arc);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 200ms cubic-bezier(0.2, 0, 0, 1),
              text-decoration-thickness 200ms cubic-bezier(0.2, 0, 0, 1);
}
.glossary-entry .expansion a:hover {
  color: var(--gloss-ink);
  text-decoration-thickness: 2px;
}

/* Global disclaimer at end of glossary body */
.glossary-disclaimer {
  max-width: 880px;
  padding: 32px 0;
  margin: 32px 0 0;
  border-top: 0.5px solid var(--gloss-rule);
}
.glossary-disclaimer .disclaimer-text {
  font-size: 14px;
  font-style: italic;
  color: var(--gloss-body);
  line-height: 1.6;
  max-width: 640px;
  margin: 0;
}

/* Brief flash when arriving at a related-term anchor.
   Respect prefers-reduced-motion. */
.glossary-entry.highlight {
  animation: gloss-highlight-flash 1.5s ease-out;
}
@keyframes gloss-highlight-flash {
  0%   { background: #FAF8F2; }
  100% { background: var(--gloss-card); }
}
@media (prefers-reduced-motion: reduce) {
  .glossary-entry.highlight { animation: none; }
  .glossary-search,
  .category-pill,
  .alphabet-nav a,
  .glossary-entry .related-list a,
  .gloss-cta {
    transition: none;
  }
  html { scroll-behavior: auto; }
}

/* ── Empty state (no search/filter results) ───────────────────────── */

.glossary-empty-state {
  background: var(--gloss-card);
  border: 1px dashed var(--gloss-card-bd);
  border-radius: 12px;
  padding: 40px 32px;
  text-align: center;
  max-width: 880px;
  margin: 0 0 16px;
}
.glossary-empty-state .empty-eyebrow {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gloss-muted);
  margin: 0 0 8px;
}
.glossary-empty-state .empty-title {
  font-size: 18px;
  font-weight: 500;
  color: var(--gloss-ink);
  margin: 0 0 8px;
}
.glossary-empty-state .empty-body {
  font-size: 14px;
  color: var(--gloss-body);
  margin: 0 0 16px;
}
.glossary-empty-state .empty-clear {
  font: 500 12px/1 'Geist', ui-sans-serif, system-ui, sans-serif;
  background: transparent;
  border: 1px solid var(--gloss-rule);
  color: var(--gloss-body);
  padding: 8px 16px;
  border-radius: 20px;
  cursor: pointer;
  transition: border-color 200ms cubic-bezier(0.2, 0, 0, 1),
              color 200ms cubic-bezier(0.2, 0, 0, 1);
}
.glossary-empty-state .empty-clear:hover {
  border-color: var(--gloss-body);
  color: var(--gloss-ink);
}

/* ── Cross-sell dark block ────────────────────────────────────────── */

.glossary-crosssell {
  background: var(--gloss-dark);
  padding: 80px 0;
}
.glossary-crosssell-inner { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
@media (min-width: 1024px) { .glossary-crosssell-inner { padding: 0 40px; } }

.glossary-crosssell .gloss-eyebrow-dark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gloss-arc-dk);
  margin: 0 0 24px;
}
.glossary-crosssell .gloss-eyebrow-dark .rule {
  display: inline-block;
  width: 60px;
  height: 1px;
  background: var(--gloss-arc-dk);
  opacity: 0.5;
}

.glossary-crosssell .gloss-headline {
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: #FFFFFF;
  max-width: 700px;
  margin: 0;
}
.glossary-crosssell .gloss-headline em.accent {
  font-style: italic;
  color: var(--gloss-arc-dk);
}
@media (max-width: 1023px) { .glossary-crosssell .gloss-headline { font-size: 28px; } }
@media (max-width: 767px)  { .glossary-crosssell .gloss-headline { font-size: 22px; } }

.glossary-crosssell .gloss-standfirst {
  font-size: 17px;
  line-height: 1.55;
  color: var(--gloss-dark-mu);
  max-width: 600px;
  margin: 24px 0 40px;
}

.gloss-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gloss-arc);
  color: #FFFFFF;
  font: 500 14px/1 'Geist', ui-sans-serif, system-ui, sans-serif;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color 200ms cubic-bezier(0.2, 0, 0, 1);
}
.gloss-cta:hover { background: #5750E8; }

/* ── Mobile refinements ───────────────────────────────────────────── */

@media (max-width: 767px) {
  .glossary-hero { padding: 56px 0 32px; }
  .glossary-body { padding: 24px 0 56px; }
  .glossary-crosssell { padding: 56px 0; }
  .glossary-search-wrap { max-width: 100%; }
  .glossary-search { height: 44px; font-size: 16px; } /* 16px prevents iOS zoom-on-focus */
  .alphabet-nav a,
  .alphabet-nav span { width: 26px; height: 26px; font-size: 12px; }
}
