/* ─── TRIANGLE SESSION COMPANION — SHARED STYLES ─────────────────────────── */
/* Mobile-first. High contrast. Readable in direct sunlight.                  */

:root {
  --navy:    #0D1B2A;
  --gold:    #C9A84C;
  --teal:    #3AAFA9;
  --coral:   #E8785A;
  --sand:    #EDE8DE;
  --muted:   #5A7085;
  --white:   #FFFFFF;
  --bg:      #FAFAF8;
  --text:    #1A1A1A;
  --border:  #DEDAD0;
  --max:     760px;
  --radius:  6px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 18px; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  padding: 0 1rem 4rem;
  overflow-x: hidden;
}

.wrap { max-width: var(--max); margin: 0 auto; }

/* HEADER */
.site-header {
  background: var(--navy);
  color: var(--white);
  padding: 2rem 1rem 1.5rem;
  margin: 0 -1rem 2rem;
}
.site-header .wrap { max-width: var(--max); margin: 0 auto; }
.event-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.site-header h1 {
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 0.4rem;
}
.site-header h1 em { color: var(--gold); font-style: normal; }
.tagline { font-size: 0.95rem; color: #8A9BB0; font-style: italic; margin-bottom: 1rem; }
.presenter { font-size: 0.85rem; color: #8A9BB0; margin-bottom: 0.25rem; }
.presenter a { color: var(--gold); text-decoration: none; }
.presenter a:hover { text-decoration: underline; }
.event-meta {
  font-size: 0.8rem;
  color: #5A7085;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #1E3448;
}

/* NAV */
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--border);
}
.site-nav a {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius);
  letter-spacing: 0.03em;
}
.site-nav a:hover { background: var(--gold); color: var(--navy); }
.site-nav a.active { background: var(--gold); color: var(--navy); }

/* SECTION HEADERS */
.section-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
h2 { font-size: 1.5rem; font-weight: 700; color: var(--navy); margin-bottom: 0.5rem; line-height: 1.25; }
h3 { font-size: 1.1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.4rem; line-height: 1.3; }
p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* SLIDE COMPANION */
.slide-block { margin-bottom: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--border); }
.slide-block:last-child { border-bottom: none; }
.slide-num {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.slide-block h3 { font-size: 1.15rem; color: var(--navy); margin-bottom: 0.75rem; }

/* CALLOUT BOXES — all text must be visible on dark bg */
.callout {
  background: var(--navy);
  color: var(--white);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin: 1.25rem 0;
  font-size: 0.95rem;
  line-height: 1.6;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.callout.gold  { border-left: 4px solid var(--gold); }
.callout.teal  { border-left: 4px solid var(--teal); }
.callout.coral { border-left: 4px solid var(--coral); }
.callout p { color: var(--white); margin-bottom: 0.5rem; }
.callout p:last-child { margin-bottom: 0; }
.callout strong { color: var(--gold); }
/* Named span classes inside callouts */
.callout span.dim  { color: #9AAEC0; }
.callout span.bold { color: var(--white); font-weight: 700; }
.callout span.gold { color: var(--gold); font-weight: 700; }

.highlight-box {
  background: #F0EDE6;
  border-left: 4px solid var(--gold);
  padding: 0.85rem 1rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1rem 0;
  font-style: italic;
  font-size: 0.95rem;
  color: var(--navy);
  word-wrap: break-word;
}

/* TWO-COL — single column on mobile, two on wider */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.25rem 0;
}
@media (min-width: 520px) {
  .two-col { grid-template-columns: 1fr 1fr; }
}
.col-dark {
  background: var(--navy);
  color: var(--white);
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  word-wrap: break-word;
}
.col-light {
  background: var(--white);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  word-wrap: break-word;
}
.col-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}
.col-dark .col-label { color: var(--gold); }
.col-light .col-label { color: var(--navy); }
.col-dark h4 { font-size: 1rem; margin-bottom: 0.4rem; color: var(--white); }
.col-light h4 { font-size: 1rem; margin-bottom: 0.4rem; color: var(--navy); }
.col-dark p { color: #9AAEC0; font-size: 0.9rem; }
.col-light p { color: var(--muted); font-size: 0.9rem; }
.col-dark .lang-tag { color: var(--gold); font-size: 0.8rem; font-weight: 700; margin-top: 0.5rem; }
.col-light .lang-tag { color: var(--navy); font-size: 0.8rem; font-weight: 700; margin-top: 0.5rem; }

/* DCR STAGES — single column on mobile */
.dcr-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 1.25rem 0;
}
@media (min-width: 480px) {
  .dcr-grid { grid-template-columns: 1fr 1fr; }
}
.dcr-stage { border-radius: var(--radius); overflow: hidden; }
.dcr-header {
  padding: 0.6rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
  word-wrap: break-word;
}
.dcr-body {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: none;
  padding: 0.75rem 0.85rem;
  font-size: 0.85rem;
  word-wrap: break-word;
}
.dcr-stage.discovery    .dcr-header { background: var(--gold); color: var(--navy); }
.dcr-stage.categorization .dcr-header { background: var(--teal); color: var(--white); }
.dcr-stage.ranking      .dcr-header { background: var(--muted); color: var(--white); }
.dcr-stage.output       .dcr-header { background: var(--navy); color: var(--white); }
.agency-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.4rem;
}
.badge-yes { background: #E8F4E8; color: #2A6B2A; }
.badge-no  { background: #FCE8E4; color: #C05A3E; }
.badge-out { background: #EEF0F2; color: var(--muted); }
.dcr-triangle { font-size: 0.78rem; font-style: italic; color: var(--muted); margin-top: 0.4rem; }

/* PROOF TABLE */
.proof-table {
  margin: 1.25rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.proof-row {
  display: flex;
  border-bottom: 1px solid var(--border);
}
.proof-row:last-child { border-bottom: none; }
.proof-label {
  padding: 0.75rem 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--white);
  flex: 0 0 90px;
  display: flex;
  align-items: flex-start;
  line-height: 1.3;
}
.proof-label.scope      { background: var(--navy); }
.proof-label.complexity { background: #1E3448; }
.proof-label.outcome    { background: var(--coral); }
.proof-label.scale      { background: var(--teal); }
.proof-example {
  padding: 0.75rem 1rem;
  font-style: italic;
  font-size: 0.9rem;
  color: var(--navy);
  background: var(--white);
  flex: 1;
  min-width: 0;
  word-wrap: break-word;
}

/* PATTERNS — flex instead of grid to prevent crushing */
.pattern-block {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  margin-bottom: 1rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}
.pattern-num {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  flex-shrink: 0;
}
.pattern-num.gold  { background: var(--gold); }
.pattern-num.teal  { background: var(--teal); color: var(--white); }
.pattern-num.coral { background: var(--coral); color: var(--white); }
.pattern-content { flex: 1; min-width: 0; }
.pattern-title { font-size: 0.95rem; font-weight: 700; color: var(--navy); }
.pattern-tag   { font-size: 0.82rem; font-style: italic; color: var(--muted); margin-bottom: 0.3rem; }
.pattern-body  { font-size: 0.88rem; color: var(--muted); }

/* GLOSSARY */
.glossary-item { margin-bottom: 2rem; padding-bottom: 2rem; border-bottom: 1px solid var(--border); }
.glossary-item:last-child { border-bottom: none; }
.gloss-term { font-size: 1.1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.2rem; }
.gloss-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.5rem;
}
.gloss-tag.framework { background: #FFF3D0; color: #8C6F2A; }
.gloss-tag.mechanism { background: #E8F4F8; color: #2A6878; }
.gloss-tag.element   { background: #F0EDE6; color: #5A4A2A; }
.gloss-tag.system    { background: #F4E8E4; color: #8C3A2A; }
.gloss-def { font-size: 0.95rem; color: var(--text); line-height: 1.7; }
.gloss-caveat {
  margin-top: 0.5rem;
  font-size: 0.82rem;
  font-style: italic;
  color: var(--muted);
  padding: 0.5rem 0.75rem;
  background: #F0EDE6;
  border-radius: var(--radius);
}

/* FAQ */
.faq-section-head {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 2rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--gold);
}
.faq-item { margin-bottom: 2rem; scroll-margin-top: 1rem; }
.faq-q { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.6rem; line-height: 1.4; }
.faq-a { font-size: 0.95rem; color: var(--text); line-height: 1.75; }
.faq-a p { margin-bottom: 0.75rem; }
.faq-a p:last-child { margin-bottom: 0; }
.faq-a strong { color: var(--navy); }

/* ARCHETYPE TABS */
.archetype-nav { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.archetype-nav a {
  padding: 0.55rem 1rem;
  background: var(--white);
  border: 2px solid var(--border);
  color: var(--navy);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius);
}
.archetype-nav a:hover,
.archetype-nav a.active { background: var(--navy); color: var(--white); border-color: var(--navy); }

/* FOOTER */
.site-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}
.site-footer a { color: var(--navy); text-decoration: none; }
.site-footer a:hover { color: var(--gold); }

/* UTILITY — contrast lines inside callout boxes */
.contrast-line {
  font-size: 1.05rem;
  line-height: 1.6;
  margin: 0.3rem 0;
  color: var(--white);
}
.contrast-line .dim  { color: #9AAEC0; }
.contrast-line .bold { color: var(--white); font-weight: 700; }
.contrast-line .gold { color: var(--gold); font-weight: 700; }

section { margin-bottom: 3rem; }

/* VERY SMALL SCREENS */
@media (max-width: 400px) {
  html { font-size: 16px; }
  .site-header h1 { font-size: 1.45rem; }
  .proof-row { flex-direction: column; }
  .proof-label { flex: none; width: 100%; padding: 0.5rem 0.85rem; }
}

/* ─── GLOSSARY NUDGE (hub callout) ───────────────────────────────────────── */
.glossary-nudge {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: #F0EDE6;
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.25rem 1rem;
  margin-bottom: 0;
}
.glossary-nudge-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  line-height: 1;
  padding-top: 0.1rem;
}
.glossary-nudge-text {
  flex: 1;
  min-width: 0;
}
.glossary-nudge-text strong {
  display: block;
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 0.4rem;
}
.glossary-nudge-text p {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}
.glossary-nudge-link {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--navy);
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 1px;
}
.glossary-nudge-link:hover { color: var(--gold); }

/* ─── WAYBACK LINK (spoke pages) ─────────────────────────────────────────── */
.wayback {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 2rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
}
.wayback:hover { color: var(--navy); border-color: var(--navy); }