/* ============================================================================
   MBTI ATLAS — design system
   Aesthetic: editorial "atlas of the self". Warm paper, deep ink, a coral
   signal accent, and four group hues. Characterful serif display (Fraunces)
   over a calm grotesque body (Hanken Grotesk). RTL-aware via logical props.
   ========================================================================== */

:root {
  /* Surfaces */
  --paper: #f6f1e7;
  --paper-2: #efe7d7;
  --card: #fffdf8;
  --ink: #17161f;
  --ink-soft: #45414f;
  --ink-faint: #7a7484;
  --line: #e2d8c6;
  --line-strong: #d3c6ad;

  /* Signal accent */
  --coral: #e2542f;
  --coral-deep: #bf3d1c;
  --coral-wash: #fbe6dd;

  /* Personality groups */
  --analyst: #6d5ae6;   /* violet   — NT */
  --diplomat: #1f9e73;  /* green    — NF */
  --sentinel: #2f6fb0;  /* blue     — SJ */
  --explorer: #e0a021;  /* amber    — SP */

  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 30px;
  --shadow: 0 1px 0 rgba(0,0,0,.04), 0 18px 40px -24px rgba(23,22,31,.45);
  --shadow-lift: 0 30px 60px -30px rgba(23,22,31,.55);

  --font-display: "Fraunces", "Noto Serif SC", Georgia, serif;
  --font-body: "Hanken Grotesk", "Noto Sans SC", system-ui, sans-serif;

  --maxw: 1120px;
}

* { box-sizing: border-box; }
*::before, *::after { box-sizing: inherit; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(1200px 600px at 100% -10%, rgba(226,84,47,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(109,90,230,.10), transparent 55%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.035'/%3E%3C/svg%3E");
  line-height: 1.6;
  font-size: 17px;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: 0;
  margin: 0 0 .5em;
  overflow-wrap: break-word;
}

p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }

.eyebrow {
  font-size: .74rem; font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; color: var(--coral-deep);
  display: inline-flex; align-items: center; gap: .5em;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--coral); display: inline-block; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  font-family: var(--font-body); font-weight: 700; font-size: 1rem;
  padding: .85em 1.5em; border-radius: 999px; border: 1.5px solid transparent;
  cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  text-align: center; line-height: 1;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--coral); box-shadow: var(--shadow-lift); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { border-color: var(--ink); background: var(--card); }
.btn-lg { font-size: 1.08rem; padding: 1.05em 2em; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-block: 14px; }
.brand { display: inline-flex; align-items: center; gap: .55em; font-family: var(--font-display); font-weight: 600; font-size: 1.28rem; letter-spacing: 0; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: var(--ink); color: var(--paper); font-size: .95rem; font-weight: 700;
  transform: rotate(-6deg);
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a { padding: .5em .85em; border-radius: 999px; font-weight: 600; font-size: .95rem; color: var(--ink-soft); }
.nav-links a:hover { color: var(--ink); background: var(--card); }

/* Language switcher (native details/summary) */
.lang { position: relative; }
.lang > summary {
  list-style: none; cursor: pointer; display: inline-flex; align-items: center; gap: .5em;
  padding: .5em .85em; border: 1.5px solid var(--line-strong); border-radius: 999px;
  font-weight: 700; font-size: .9rem;
}
.lang > summary::-webkit-details-marker { display: none; }
.lang > summary::after { content: "▾"; font-size: .7em; }
.lang[open] > summary { border-color: var(--ink); }
.lang-menu {
  position: absolute; inset-inline-end: 0; margin-top: 10px; width: 232px; max-height: 60vh; overflow: auto;
  background: var(--card); border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lift); padding: 8px; z-index: 60;
  display: grid; grid-template-columns: 1fr 1fr; gap: 2px;
}
.lang-menu a { padding: .55em .7em; border-radius: 9px; font-size: .88rem; font-weight: 600; color: var(--ink-soft); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lang-menu a:hover { background: var(--paper-2); color: var(--ink); }
.lang-menu a.active { background: var(--ink); color: var(--paper); }

.menu-toggle { display: none; }

/* ---------- Footer ---------- */
.site-footer { margin-top: 90px; border-top: 1px solid var(--line); background: color-mix(in srgb, var(--paper-2) 70%, transparent); }
.footer-grid { display: flex; flex-wrap: wrap; gap: 26px 60px; justify-content: space-between; padding-block: 44px; }
.footer-brand { max-width: 320px; }
.footer-brand p { color: var(--ink-faint); font-size: .92rem; }
.footer-cols { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 { font-family: var(--font-body); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); }
.footer-col a { display: block; padding: .28em 0; color: var(--ink-soft); font-size: .93rem; }
.footer-col a:hover { color: var(--coral-deep); }
.footer-bottom { border-top: 1px solid var(--line); padding-block: 18px; display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; justify-content: space-between; font-size: .82rem; color: var(--ink-faint); }
.footer-bottom a { color: var(--ink-faint); text-decoration: underline; text-underline-offset: 3px; }
.footer-bottom a:hover { color: var(--coral-deep); }
.icp { font-variant-numeric: tabular-nums; }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(48px, 8vw, 96px) 20px; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 54px; align-items: center; }
.hero h1 {
  font-size: clamp(2.1rem, 7vw, 4.6rem); font-weight: 600;
  overflow-wrap: break-word; word-break: break-word; hyphens: auto;
}
.hero h1 em { font-style: italic; color: var(--coral); }
.hero-lead { font-size: 1.2rem; color: var(--ink-soft); max-width: 40ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-stats { display: flex; gap: 30px; margin-top: 40px; }
.hero-stat .n { font-family: var(--font-display); font-size: 2rem; font-weight: 600; }
.hero-stat .l { font-size: .82rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .08em; }

/* Hero visual: rotating type medallions */
.hero-art { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
.hero-disc {
  width: 100%; aspect-ratio: 1; border-radius: 50%;
  background:
    conic-gradient(from 200deg, var(--analyst), var(--diplomat), var(--explorer), var(--sentinel), var(--analyst));
  filter: saturate(.85);
  -webkit-mask: radial-gradient(circle at center, transparent 46%, #000 47%, #000 62%, transparent 63%);
          mask: radial-gradient(circle at center, transparent 46%, #000 47%, #000 62%, transparent 63%);
  animation: spin 40s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.hero-core {
  position: absolute; inset: 22%; border-radius: 50%; background: var(--card);
  border: 1px solid var(--line-strong); box-shadow: var(--shadow); display: grid; place-items: center; text-align: center;
}
.hero-core .code { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3rem); letter-spacing: .06em; }
.hero-core .cap { font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-faint); }

/* ---------- Section scaffolding ---------- */
.section { padding-block: clamp(46px, 7vw, 82px); }
.section-head { max-width: 60ch; margin-bottom: 38px; }
.section-head h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.section-head p { color: var(--ink-soft); font-size: 1.08rem; }

/* ---------- Mode cards ---------- */
.mode-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.mode-card {
  position: relative; background: var(--card); border: 1px solid var(--line-strong);
  border-radius: var(--radius); padding: 30px; display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  overflow: hidden; min-width: 0;
}
.mode-card::before { content: ""; position: absolute; inset-inline: 0; top: 0; height: 4px; background: var(--coral); transform: scaleX(0); transform-origin: inline-start; transition: transform .3s ease; }
.mode-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lift); border-color: var(--ink); }
.mode-card:hover::before { transform: scaleX(1); }
.mode-icon { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; background: var(--coral-wash); color: var(--coral-deep); font-size: 1.4rem; margin-bottom: 18px; flex: none; }
.mode-card h3 { font-size: 1.5rem; }
.mode-count { font-family: var(--font-display); font-size: 3.2rem; line-height: 1; color: var(--ink); }
.mode-count small { font-family: var(--font-body); font-size: .9rem; color: var(--ink-faint); font-weight: 600; letter-spacing: .04em; }
.mode-desc { color: var(--ink-soft); font-size: .98rem; margin-block: 12px 18px; flex: 1; }
.mode-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.pill { font-size: .78rem; font-weight: 700; padding: .35em .7em; border-radius: 999px; background: var(--paper-2); color: var(--ink-soft); }
.pill.tag { background: var(--ink); color: var(--paper); }

/* ---------- Dimensions ---------- */
.dim-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.dim-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; min-width: 0; }
.dim-card .axis { display: flex; align-items: center; flex-wrap: wrap; gap: .5em; font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 8px; min-width: 0; overflow-wrap: anywhere; }
.dim-card .axis span { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; background: var(--ink); color: var(--paper); font-size: .95rem; }
.dim-card p { color: var(--ink-soft); font-size: .95rem; margin-bottom: 14px; overflow-wrap: anywhere; }
.dim-poles { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 14px; font-size: .82rem; font-weight: 700; color: var(--ink-faint); overflow-wrap: anywhere; }

/* ---------- Atlas grid (16 types) ---------- */
.atlas-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.type-chip {
  background: var(--card); border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 18px; display: flex; flex-direction: column; gap: 4px; position: relative;
  transition: transform .16s ease, box-shadow .16s ease; overflow: hidden;
}
.type-chip:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.type-chip .code { font-family: var(--font-display); font-size: 1.6rem; letter-spacing: .05em; }
.type-chip .name { font-size: .9rem; color: var(--ink-soft); font-weight: 600; }
.type-chip .dot { position: absolute; inset-inline-end: 14px; top: 16px; width: 10px; height: 10px; border-radius: 50%; }
.g-analyst .dot, .g-analyst .code { color: var(--analyst); }
.g-diplomat .dot, .g-diplomat .code { color: var(--diplomat); }
.g-sentinel .dot, .g-sentinel .code { color: var(--sentinel); }
.g-explorer .dot, .g-explorer .code { color: var(--explorer); }
.type-chip .dot.analyst { background: var(--analyst); }
.type-chip .dot.diplomat { background: var(--diplomat); }
.type-chip .dot.sentinel { background: var(--sentinel); }
.type-chip .dot.explorer { background: var(--explorer); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--ink); color: var(--paper); border-radius: var(--radius-lg); padding: clamp(34px, 6vw, 64px); text-align: center; position: relative; overflow: hidden; }
.cta-band h2 { color: var(--paper); font-size: clamp(1.8rem, 4vw, 3rem); }
.cta-band p { color: color-mix(in srgb, var(--paper) 72%, transparent); max-width: 46ch; margin-inline: auto; }
.cta-band .btn-primary { background: var(--coral); color: #fff; }
.cta-band .btn-primary:hover { background: #fff; color: var(--ink); }

/* ---------- Quiz ---------- */
.quiz-shell { max-width: 760px; margin-inline: auto; padding-block: 40px 60px; }
.quiz-top { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.quiz-top .mode-name { font-weight: 700; letter-spacing: .02em; }
.quiz-top .counter { font-variant-numeric: tabular-nums; color: var(--ink-faint); font-weight: 700; }
.progress { height: 10px; background: var(--paper-2); border-radius: 999px; overflow: hidden; border: 1px solid var(--line); }
.progress > span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--coral), var(--coral-deep)); border-radius: 999px; transition: width .4s cubic-bezier(.4,0,.2,1); }
.q-card { background: var(--card); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: clamp(24px, 4vw, 42px); margin-top: 26px; box-shadow: var(--shadow); }
.q-index { font-family: var(--font-display); color: var(--coral); font-size: 1.1rem; }
.q-text { font-family: var(--font-display); font-size: clamp(1.4rem, 3.4vw, 2rem); margin: 8px 0 26px; }
.options { display: grid; gap: 12px; }
.option {
  display: flex; align-items: center; gap: 14px; padding: 18px 20px; cursor: pointer;
  width: 100%; text-align: start; font-family: inherit; color: inherit;
  background: var(--paper); border: 1.5px solid var(--line-strong); border-radius: var(--radius-sm);
  transition: border-color .16s ease, background .16s ease, transform .12s ease; font-size: 1.02rem; font-weight: 500;
}
.option-label { flex: 1; }
.option:hover { border-color: var(--ink); transform: translateX(3px); }
.option:focus-visible { outline: 3px solid var(--coral); outline-offset: 2px; border-color: var(--coral); }
.option .bullet { width: 26px; height: 26px; flex: none; border-radius: 50%; border: 2px solid var(--line-strong); display: grid; place-items: center; transition: all .16s ease; }
.option.selected { border-color: var(--coral); background: var(--coral-wash); }
.option.selected .bullet { border-color: var(--coral); background: var(--coral); color: #fff; }
.quiz-nav { display: flex; justify-content: space-between; margin-top: 26px; gap: 12px; }
.quiz-loading, .quiz-done { text-align: center; padding: 50px 0; }
.spinner { width: 44px; height: 44px; border-radius: 50%; border: 4px solid var(--line-strong); border-top-color: var(--coral); margin: 0 auto 16px; animation: spin 1s linear infinite; }

/* ---------- Result ---------- */
.result-hero { display: grid; grid-template-columns: auto 1fr; gap: 34px; align-items: center; padding-block: 46px 30px; }
.result-badge { width: 168px; aspect-ratio: 1; border-radius: 26px; display: grid; place-items: center; text-align: center; color: #fff; box-shadow: var(--shadow-lift); }
.result-badge .code { font-family: var(--font-display); font-size: 2.6rem; letter-spacing: .06em; }
.result-badge .grp { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; opacity: .85; }
.b-analyst { background: linear-gradient(150deg, var(--analyst), #4a37b8); }
.b-diplomat { background: linear-gradient(150deg, var(--diplomat), #14764f); }
.b-sentinel { background: linear-gradient(150deg, var(--sentinel), #1e4f82); }
.b-explorer { background: linear-gradient(150deg, var(--explorer), #b87908); }
.result-hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
.result-hero .quote { color: var(--ink-soft); font-style: italic; font-family: var(--font-display); font-size: 1.1rem; }

.dim-bars { display: grid; gap: 16px; margin-block: 10px; }
.dim-bar .labels { display: flex; justify-content: space-between; font-size: .86rem; font-weight: 700; margin-bottom: 6px; }
.dim-bar .labels .on { color: var(--coral-deep); }
.dim-bar .labels .off { color: var(--ink-faint); }
.dim-track { height: 12px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; position: relative; }
.dim-track > i { position: absolute; inset-block: 0; inset-inline-start: 0; background: linear-gradient(90deg, var(--coral), var(--coral-deep)); border-radius: 999px; width: 0; transition: width 1s cubic-bezier(.4,0,.2,1); }

.result-section { padding-block: 30px; border-top: 1px solid var(--line); scroll-margin-top: 76px; }
.result-section > h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin-bottom: 6px; }

/* Result table of contents (anchor navigation) */
.result-toc {
  display: flex; flex-wrap: wrap; gap: 8px; padding-block: 16px 4px;
  border-top: 1px solid var(--line); background: var(--paper);
}
.result-toc a {
  font-size: .84rem; font-weight: 700; padding: .4em .85em; border-radius: 999px;
  background: var(--paper-2); color: var(--ink-soft); border: 1px solid transparent;
}
.result-toc a:hover, .result-toc a:focus-visible { background: var(--ink); color: var(--paper); }
.result-toc a:focus-visible { outline: 3px solid var(--coral); outline-offset: 2px; }
.result-section .lede { color: var(--ink-soft); max-width: 68ch; }
.prose p { color: var(--ink-soft); max-width: 72ch; }
.trait-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 16px; }
.trait { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 20px; }
.trait h4 { font-family: var(--font-body); font-size: 1rem; margin-bottom: 4px; display: flex; align-items: center; gap: .5em; }
.trait p { font-size: .92rem; color: var(--ink-soft); margin: 0; }
.trait.pos h4::before { content: "+"; color: var(--diplomat); font-weight: 800; }
.trait.neg h4::before { content: "–"; color: var(--coral-deep); font-weight: 800; }

.func-list { display: grid; gap: 12px; margin-top: 16px; }
.func { display: flex; gap: 16px; align-items: flex-start; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 16px 20px; }
.func .fc { font-family: var(--font-display); font-size: 1.4rem; color: var(--analyst); min-width: 44px; }
.func .fn { font-weight: 700; }
.func .fs { font-size: .86rem; color: var(--ink-faint); }
.func p { font-size: .9rem; color: var(--ink-soft); margin: 6px 0 0; }

.career-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 16px; }
.career { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 18px 20px; }
.career h4 { font-family: var(--font-body); font-size: 1rem; }
.career p { font-size: .88rem; color: var(--ink-soft); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tag-chip { font-size: .78rem; font-weight: 600; padding: .32em .7em; border-radius: 999px; background: var(--paper-2); color: var(--ink-soft); }

.match-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.match { display: inline-flex; align-items: center; gap: .5em; padding: .5em .9em; border: 1.5px solid var(--line-strong); border-radius: 999px; font-weight: 700; }
.match:hover { border-color: var(--ink); }
.match .mc { font-family: var(--font-display); }

.stage { border-inline-start: 3px solid var(--coral); padding-inline-start: 18px; margin-bottom: 16px; }
.stage h4 { font-family: var(--font-body); font-size: 1rem; margin-bottom: 2px; }
.stage p { font-size: .93rem; color: var(--ink-soft); margin: 0; }

.fame-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-top: 16px; }
.fame { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; }
.fame .nm { font-weight: 700; }
.fame .cm { font-size: .84rem; color: var(--ink-faint); }

.dark-list { list-style: none; padding: 0; margin-top: 14px; display: grid; gap: 8px; }
.dark-list li { padding-inline-start: 26px; position: relative; color: var(--ink-soft); }
.dark-list li::before { content: "◆"; position: absolute; inset-inline-start: 0; color: var(--coral); font-size: .7em; top: .35em; }

/* ---------- Trust, legal, and contact pages ---------- */
.info-page { --info-rail: 220px; }
.info-hero {
  position: relative; overflow: hidden; border-bottom: 1px solid var(--line);
  background:
    linear-gradient(115deg, color-mix(in srgb, var(--paper-2) 72%, transparent), transparent 56%),
    radial-gradient(circle at 82% 24%, color-mix(in srgb, var(--coral) 13%, transparent), transparent 28%);
}
.info-hero-grid {
  min-height: 420px; display: grid; grid-template-columns: minmax(0, 1fr) 300px;
  gap: clamp(44px, 8vw, 110px); align-items: center; padding-block: clamp(64px, 10vw, 112px);
}
.info-heading { max-width: 720px; }
.info-heading h1 { max-width: 16ch; margin-top: 14px; font-size: clamp(2.5rem, 7vw, 5.4rem); }
.info-lede { max-width: 58ch; color: var(--ink-soft); font-size: clamp(1.05rem, 2.2vw, 1.28rem); }
.info-updated {
  width: fit-content; margin: 28px 0 0; padding-top: 12px; border-top: 1px solid var(--line-strong);
  color: var(--ink-faint); font-size: .82rem; font-weight: 700; letter-spacing: .04em;
}
.info-heading .btn { margin-top: 12px; }
.info-mark {
  position: relative; width: min(100%, 276px); aspect-ratio: 1; display: grid; place-items: center;
  border: 1px solid var(--line-strong); border-radius: 50%; justify-self: end;
  background: color-mix(in srgb, var(--card) 72%, transparent); box-shadow: var(--shadow);
}
.info-mark::before, .info-mark::after {
  content: ""; position: absolute; inset: 13%; border: 1px solid var(--line); border-radius: 50%;
}
.info-mark::after { inset: 29%; border-color: var(--coral); }
.info-mark span {
  position: relative; z-index: 2; max-width: 5ch; text-align: center; overflow-wrap: anywhere;
  font-family: var(--font-display); font-size: clamp(1.5rem, 4vw, 2.25rem); letter-spacing: .08em;
}
.info-mark i {
  position: absolute; z-index: 3; width: 12px; height: 12px; border-radius: 50%; background: var(--ink);
}
.info-mark i:nth-of-type(1) { inset-inline-start: 6%; top: 48%; background: var(--analyst); }
.info-mark i:nth-of-type(2) { inset-inline-end: 13%; top: 17%; background: var(--diplomat); }
.info-mark i:nth-of-type(3) { inset-inline-end: 5%; bottom: 34%; background: var(--explorer); }
.info-mark i:nth-of-type(4) { inset-inline-start: 26%; bottom: 8%; background: var(--sentinel); }

.info-layout {
  display: grid; grid-template-columns: var(--info-rail) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 92px); align-items: start; padding-block: clamp(54px, 8vw, 100px);
}
.info-index {
  position: sticky; top: 96px; padding-top: 4px; border-top: 3px solid var(--ink);
}
.info-index > span {
  display: block; padding-block: 14px 10px; color: var(--ink-faint);
  font-size: .72rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase;
}
.info-index nav { display: grid; }
.info-index a {
  display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 8px; padding: 9px 0;
  border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .82rem; line-height: 1.35;
}
.info-index a b { color: var(--coral-deep); font-variant-numeric: tabular-nums; }
.info-index a:hover { color: var(--ink); padding-inline-start: 5px; }
.info-copy { min-width: 0; }
.info-section {
  display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: clamp(16px, 3vw, 34px);
  padding-block: 0 clamp(42px, 7vw, 76px); scroll-margin-top: 100px;
}
.info-section + .info-section { padding-top: clamp(36px, 6vw, 64px); border-top: 1px solid var(--line); }
.info-section-number {
  padding-top: .26em; color: var(--coral-deep); font-family: var(--font-display);
  font-size: 1rem; font-variant-numeric: tabular-nums;
}
.info-section h2 { max-width: 24ch; font-size: clamp(1.5rem, 3vw, 2.25rem); }
.info-section p, .info-section li { max-width: 72ch; color: var(--ink-soft); }
.info-section ul { display: grid; gap: 9px; padding-inline-start: 1.2em; }
.info-section li::marker { color: var(--coral); }
.info-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
.info-links a {
  display: inline-flex; align-items: center; gap: .4em; padding: .55em .9em;
  border: 1px solid var(--line-strong); border-radius: 999px; background: var(--card);
  color: var(--ink-soft); font-size: .82rem; font-weight: 700;
}
.info-links a:hover { border-color: var(--ink); color: var(--ink); transform: translateY(-2px); }

/* ---------- Error ---------- */
.error-wrap { text-align: center; padding-block: 90px; max-width: 520px; margin-inline: auto; }
.error-wrap .big { font-family: var(--font-display); font-size: 5rem; color: var(--coral); }

/* ---------- Utilities ---------- */
.reveal { opacity: 0; transform: translateY(16px); animation: fadeUp .7s cubic-bezier(.2,.7,.2,1) forwards; }
@keyframes fadeUp { to { opacity: 1; transform: none; } }
.mt-0 { margin-top: 0; }
.center { text-align: center; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { display: none; }
  .mode-grid { grid-template-columns: 1fr; }
  .atlas-grid { grid-template-columns: repeat(2, 1fr); }
  .result-hero { grid-template-columns: 1fr; text-align: center; }
  .result-badge { margin-inline: auto; }
  .trait-grid, .career-grid, .dim-grid { grid-template-columns: 1fr; }
  .info-hero-grid { grid-template-columns: minmax(0, 1fr) 220px; }
  .info-layout { grid-template-columns: 180px minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .container { width: auto; max-width: none; margin-inline: 22px; padding-inline: 0; }
  .nav { display: grid; grid-template-columns: auto auto; justify-content: start; gap: 12px; }
  .brand { min-width: 0; overflow: hidden; white-space: nowrap; font-size: 0; }
  .brand::after { content: "MBTI"; font-size: 1.08rem; }
  .brand .mark { flex: none; }
  .nav > .nav-links:not(.primary) { min-width: 0; justify-self: start; }
  .lang > summary {
    width: 42px; height: 42px; padding: 0; justify-content: center;
    overflow: hidden; white-space: nowrap; font-size: 0;
  }
  .lang > summary::before { content: "🌐"; font-size: 1rem; }
  .lang > summary::after { font-size: .72rem; margin-inline-start: 2px; }
  .nav-links.primary { display: none; }
  .menu-toggle { display: inline-grid; place-items: center; width: 42px; height: 42px; border: 1.5px solid var(--line-strong); border-radius: 12px; background: var(--card); cursor: pointer; }
  .nav.open .nav-links.primary {
    display: flex; position: absolute; inset-inline: 14px; top: 70px; flex-direction: column; align-items: stretch;
    background: var(--card); border: 1px solid var(--line-strong); border-radius: var(--radius); padding: 10px; box-shadow: var(--shadow-lift);
  }
  /* Language menu: pin to the viewport with safe insets so it never overflows
     horizontally (incl. RTL). */
  .lang-menu {
    position: fixed; top: 64px; left: 12px; right: 12px; inset-inline: 12px;
    width: auto; max-width: none; grid-template-columns: 1fr 1fr; max-height: 72vh;
  }
  body { font-size: 16px; }

  /* Tighter hero on small screens */
  .hero { padding-block: 36px 24px; }
  .hero-grid { gap: 0; }
  .hero-copy, .section-head, .mode-card, .btn { min-width: 0; max-width: 100%; }
  .hero h1 {
    font-size: clamp(1.72rem, 7vw, 2.08rem);
    line-height: 1.1;
    max-width: min(100%, 12ch);
    overflow-wrap: anywhere;
    word-break: normal;
  }
  .hero-lead { font-size: 1.06rem; }
  .hero-cta { display: grid; grid-template-columns: minmax(0, 1fr); margin-top: 22px; }
  .hero-cta .btn { width: 100%; }
  .hero-stats {
    display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px;
    width: min(100%, 356px); margin: 28px 0 0;
  }
  .hero-stat {
    min-width: 0; min-height: 92px; display: grid; align-content: center; justify-items: center;
    padding: 12px 8px; text-align: center; background: color-mix(in srgb, var(--card) 76%, transparent);
    border: 1px solid var(--line); border-radius: var(--radius-sm);
  }
  .hero-stat .n { font-size: 1.45rem; line-height: 1; }
  .hero-stat .l {
    max-width: 100%; margin: 8px auto 0; font-size: .66rem; line-height: 1.25;
    letter-spacing: .06em; overflow-wrap: anywhere; word-break: normal;
  }

  /* Compress the mode-selection page vertically */
  .section { padding-block: 30px; }
  .section-head { max-width: 100%; margin-bottom: 18px; }
  .section-head h2 { font-size: clamp(1.18rem, 5vw, 1.45rem); line-height: 1.18; max-width: min(100%, 18ch); overflow-wrap: anywhere; word-break: normal; }
  .mode-grid { gap: 14px; }
  .mode-card {
    display: grid; grid-template-columns: 44px minmax(0, 1fr); column-gap: 14px; row-gap: 8px;
    padding: 16px; align-items: start;
  }
  .mode-icon { width: 44px; height: 44px; font-size: 1.2rem; margin-bottom: 0; grid-row: span 4; }
  .mode-card > :not(.mode-icon) { grid-column: 2; min-width: 0; }
  .mode-card h3 { font-size: 1.22rem; margin-bottom: 0; }
  .mode-count { font-size: 1.65rem; }
  .mode-count small { font-size: .75rem; letter-spacing: 0; }
  .mode-desc { margin-block: 0 4px; font-size: .92rem; line-height: 1.45; }
  .mode-meta { margin-bottom: 4px; gap: 6px; }
  .mode-card .btn { grid-column: 1 / -1; min-height: 42px; padding: .75em 1em; width: 100%; }

  .dim-card { padding: 20px; }
  .dim-card .axis { font-size: 1.12rem; }
  .dim-poles { font-size: .78rem; }

  /* Result TOC: single scrollable row to save vertical space */
  .result-toc {
    position: sticky; top: 63px; z-index: 40; padding: 10px 0;
    flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; scrollbar-width: none;
    border-bottom: 1px solid var(--line); box-shadow: 0 12px 24px -24px rgba(23,22,31,.45);
  }
  .result-toc::-webkit-scrollbar { display: none; }
  .result-toc a { white-space: nowrap; flex: 0 0 auto; }
  .result-hero { gap: 20px; padding-block: 30px 20px; }
  .result-badge { width: 128px; border-radius: 22px; }
  .result-badge .code { font-size: 2rem; }
  .result-section { padding-block: 22px; scroll-margin-top: 118px; }
  .trait, .career, .func, .fame { padding: 14px 16px; }
  .func { gap: 12px; }
  .hero-cta .btn { width: 100%; }

  .info-hero-grid { min-height: auto; grid-template-columns: 1fr; padding-block: 52px; }
  .info-heading h1 { font-size: clamp(2.25rem, 12vw, 3.6rem); }
  .info-mark { display: none; }
  .info-layout { display: block; padding-block: 36px 64px; }
  .info-index {
    position: static; margin-bottom: 36px; padding-bottom: 12px; overflow-x: auto;
    border-bottom: 1px solid var(--line); scrollbar-width: none;
  }
  .info-index::-webkit-scrollbar { display: none; }
  .info-index > span { padding-bottom: 8px; }
  .info-index nav { display: flex; width: max-content; gap: 8px; }
  .info-index a {
    display: inline-flex; align-items: baseline; padding: 7px 10px; border: 1px solid var(--line);
    border-radius: 999px; background: var(--card); white-space: nowrap;
  }
  .info-index a:hover { padding-inline-start: 10px; }
  .info-section { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; scroll-margin-top: 84px; }
}

@media (max-width: 400px) {
  .lang-menu { grid-template-columns: 1fr; }
  .container { margin-inline: 18px; }
  .nav { gap: 10px; }
  .brand { font-size: 1.08rem; }
  .brand .mark { width: 30px; height: 30px; border-radius: 9px; }
  .nav-links { gap: 4px; }
  .lang > summary { max-width: 136px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding-inline: .72em; }
  .menu-toggle { width: 38px; height: 38px; }
  .mode-card { grid-template-columns: 40px minmax(0, 1fr); column-gap: 12px; padding: 14px; }
  .mode-icon { width: 40px; height: 40px; border-radius: 12px; }
  .mode-card h3 { font-size: 1.1rem; }
  .mode-desc { font-size: .88rem; }
  .hero h1 { font-size: 1.72rem; }
  .section-head h2 { font-size: 1.18rem; }
  .hero-stats { gap: 8px; }
  .hero-stat { min-height: 86px; padding: 10px 6px; }
  .hero-stat .l { font-size: .62rem; letter-spacing: .04em; }
  .dim-card { padding: 16px; }
  .dim-card .axis span { width: 28px; height: 28px; }
}

/* RTL niceties */
[dir="rtl"] .eyebrow::before { transform: scaleX(-1); }
[dir="rtl"] .option:hover { transform: translateX(-3px); }

.content-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.55;
}
.quiz-note { margin: 14px 0 0; text-align: center; }

/* ---------- Knowledge graph & tools ---------- */
.brand-copy { display: grid; line-height: 1; }
.brand-copy small {
  margin-top: 5px; color: var(--ink-faint); font-family: var(--font-body);
  font-size: .52rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
}
.nav-links.primary { flex: 1; justify-content: center; }
.nav-links.primary a { font-size: .86rem; white-space: nowrap; }

.tool-ribbon-section { padding-block: 16px 50px; }
.tool-ribbon {
  display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line-strong);
}
.tool-ribbon a { display: grid; grid-template-columns: 34px 1fr auto; gap: 12px; align-items: center; padding: 20px 18px; }
.tool-ribbon a + a { border-inline-start: 1px solid var(--line-strong); }
.tool-ribbon b { color: var(--coral-deep); font: 600 .78rem var(--font-display); }
.tool-ribbon span { font-weight: 700; }
.tool-ribbon i { font-style: normal; transition: transform .2s ease; }
.tool-ribbon a:hover { background: var(--card); }
.tool-ribbon a:hover i { transform: translate(3px, -3px); }

.hub-actions {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-block: 1px solid var(--line-strong);
  margin-bottom: 8px;
}
.hub-actions a { display: grid; gap: 5px; padding: 16px 12px; font-size: .84rem; font-weight: 700; }
.hub-actions a + a { border-inline-start: 1px solid var(--line); }
.hub-actions b, .section-kicker { color: var(--coral-deep); font: 600 .72rem var(--font-display); letter-spacing: .1em; }
.hub-actions a:hover { background: var(--card); }
.type-hub .result-section { scroll-margin-top: 94px; }
.type-hub .func { color: inherit; }
.type-hub .func:hover { border-color: var(--ink); transform: translateY(-2px); box-shadow: var(--shadow); }
.trait ul { margin: 0; padding-inline-start: 1.1em; color: var(--ink-soft); }
.topic-graph { padding-block: 58px; }
.topic-graph > h2 { font-size: clamp(1.8rem, 4vw, 3rem); max-width: 18ch; }
.topic-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 28px; }
.topic-columns > div { border-top: 3px solid var(--ink); }
.topic-columns h3 { padding-block: 16px 10px; font-size: 1.1rem; }
.topic-columns a { display: flex; justify-content: space-between; padding: 13px 4px; border-top: 1px solid var(--line); font-weight: 700; }
.topic-columns a:hover { color: var(--coral-deep); padding-inline: 10px; }

.tool-hero { padding-block: clamp(52px, 9vw, 112px); border-bottom: 1px solid var(--line); overflow: hidden; }
.tool-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 64px; }
.tool-hero h1, .knowledge-hero h1 { max-width: 12ch; font-size: clamp(2.7rem, 7vw, 5.7rem); }
.tool-hero h1 em { color: var(--coral); font-style: italic; }
.tool-hero p, .knowledge-hero p { max-width: 56ch; color: var(--ink-soft); font-size: 1.12rem; }
.type-orbit { min-height: 270px; position: relative; display: grid; grid-template-columns: 1fr 74px 1fr; align-items: center; }
.type-orbit::before { content: ""; position: absolute; inset: 5%; border: 1px solid var(--line-strong); border-radius: 50%; transform: rotate(-12deg); }
.type-orbit span { z-index: 1; aspect-ratio: 1; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--paper); font: 600 clamp(1rem, 2.2vw, 1.7rem) var(--font-display); box-shadow: var(--shadow-lift); }
.type-orbit span:last-child { background: var(--coral); transform: translateY(30px); }
.type-orbit i { z-index: 2; justify-self: center; color: var(--ink-faint); font: 600 .76rem var(--font-display); font-style: normal; }
.type-orbit.paired span { border-radius: 30% 70% 65% 35% / 35% 45% 55% 65%; }
.tool-workspace { padding-block: 0 80px; }
.pair-form { display: grid; grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr) auto; gap: 16px; align-items: end; padding: 24px; margin-top: -1px; background: var(--card); border: 1px solid var(--line-strong); border-radius: 0 0 var(--radius-lg) var(--radius-lg); box-shadow: var(--shadow); }
.pair-form label { display: grid; gap: 7px; min-width: 0; }
.pair-form label > span { color: var(--ink-faint); font-size: .74rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.pair-form select { width: 100%; min-width: 0; border: 1.5px solid var(--line-strong); border-radius: 12px; padding: 12px 42px 12px 14px; background: var(--paper); color: var(--ink); font: 700 .98rem var(--font-body); }
.pair-form select:focus-visible { outline: 3px solid color-mix(in srgb, var(--coral) 30%, transparent); border-color: var(--coral); }
.pair-separator { align-self: center; justify-self: center; font: 600 .8rem var(--font-display); color: var(--coral-deep); }
.form-error { padding: 12px 16px; border-inline-start: 4px solid var(--coral); color: var(--coral-deep); background: var(--coral-wash); }
.pair-report, .compat-report { padding-block: clamp(50px, 8vw, 90px); }
.pair-report > header h2 { font-size: clamp(2.2rem, 6vw, 4.4rem); }
.compare-head { display: grid; grid-template-columns: 1fr 1fr; margin-top: 32px; border-block: 3px solid var(--ink); }
.compare-head div { display: flex; justify-content: space-between; gap: 15px; align-items: baseline; padding: 18px; }
.compare-head div + div { border-inline-start: 1px solid var(--line-strong); }
.compare-head b { font: 600 2rem var(--font-display); }
.compare-head span { color: var(--ink-faint); }
.compare-rows > section { display: grid; grid-template-columns: 90px 1fr 1fr; border-bottom: 1px solid var(--line-strong); }
.compare-rows > section > * { padding: 22px 18px; }
.compare-rows > section > div + div { border-inline-start: 1px solid var(--line); }
.compare-rows h3 { color: var(--coral-deep); }
.compare-rows p { color: var(--ink-soft); font-size: .9rem; }
.axis-label { color: var(--ink-faint); font: 700 .78rem var(--font-body); }
.pair-deep-dive { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-block: 46px; }
.pair-deep-dive section { padding-top: 20px; border-top: 3px solid var(--ink); }
.pair-deep-dive p { color: var(--ink-soft); }
.curated-index { padding-block: 70px; }
.curated-index > h2 { font-size: clamp(2rem, 5vw, 3.8rem); }
.curated-index > div { display: grid; grid-template-columns: repeat(2, 1fr); margin-top: 28px; border-top: 3px solid var(--ink); }
.curated-index a { display: grid; grid-template-columns: 1fr 44px 1fr auto; padding: 18px; border-bottom: 1px solid var(--line); align-items: center; }
.curated-index a:nth-child(odd) { border-inline-end: 1px solid var(--line); }
.curated-index a i { color: var(--ink-faint); font-size: .76rem; font-style: normal; }
.curated-index a span { transition: transform .2s ease; }
.curated-index a:hover { background: var(--card); color: var(--coral-deep); }
.curated-index a:hover span { transform: translate(3px,-3px); }

.pair-directory { padding-block: 18px 90px; }
.pair-directory > header { max-width: 760px; margin-bottom: 30px; }
.pair-directory > header h2 { max-width: 18ch; font-size: clamp(2rem, 5vw, 3.8rem); }
.pair-directory > header p { max-width: 62ch; color: var(--ink-soft); }
.pair-directory-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 3px solid var(--ink); }
.pair-directory-grid details { min-width: 0; border-bottom: 1px solid var(--line-strong); }
.pair-directory-grid details:not(:nth-child(4n + 1)) { border-inline-start: 1px solid var(--line); }
.pair-directory-grid summary {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding: 18px 16px; cursor: pointer; list-style: none; transition: background .18s ease, color .18s ease;
}
.pair-directory-grid summary::-webkit-details-marker { display: none; }
.pair-directory-grid summary::after { content: "+"; color: var(--coral-deep); font: 600 1rem var(--font-display); }
.pair-directory-grid details[open] summary::after { content: "−"; }
.pair-directory-grid summary b { font: 600 1.15rem var(--font-display); }
.pair-directory-grid summary span { margin-inline-start: auto; color: var(--ink-faint); font-size: .72rem; }
.pair-directory-grid summary:hover, .pair-directory-grid summary:focus-visible { background: var(--card); color: var(--coral-deep); outline: 0; }
.pair-directory-grid details > div { display: grid; border-top: 1px solid var(--line); background: color-mix(in srgb, var(--card) 62%, transparent); }
.pair-directory-grid a { display: grid; grid-template-columns: 1fr auto auto; gap: 8px; padding: 11px 16px; border-bottom: 1px solid var(--line); font-size: .78rem; font-weight: 800; }
.pair-directory-grid a:last-child { border-bottom: 0; }
.pair-directory-grid a i { color: var(--ink-faint); font-style: normal; font-weight: 500; }
.pair-directory-grid a span { color: var(--coral-deep); transition: transform .18s ease; }
.pair-directory-grid a:hover { color: var(--coral-deep); background: var(--paper); }
.pair-directory-grid a:hover span { transform: translate(2px, -2px); }

.knowledge-triptych { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.knowledge-triptych > * { padding: 24px; border-top: 3px solid var(--ink); background: color-mix(in srgb, var(--card) 65%, transparent); }
.knowledge-triptych > * > b { color: var(--coral-deep); font: 600 1rem var(--font-display); }
.knowledge-triptych p { color: var(--ink-soft); font-size: .9rem; }

.knowledge-hero { padding-block: clamp(70px, 11vw, 140px) 52px; border-bottom: 1px solid var(--line); }
.function-constellation { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 38px; }
.function-constellation a { display: flex; align-items: baseline; gap: 8px; padding: 12px 16px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--card); }
.function-constellation a:hover { transform: translateY(-3px); border-color: var(--ink); }
.function-constellation b { color: var(--coral-deep); font: 600 1.15rem var(--font-display); }
.function-constellation span { color: var(--ink-soft); font-size: .82rem; }
.editorial-list, .guide-ledger { border-top: 3px solid var(--ink); }
.editorial-list > a, .guide-ledger > a { display: grid; grid-template-columns: 56px 1fr auto; gap: 24px; align-items: start; padding: 25px 10px; border-bottom: 1px solid var(--line-strong); }
.editorial-list > a > span, .guide-ledger > a > span { color: var(--coral-deep); font: 600 .8rem var(--font-display); }
.editorial-list h2, .guide-ledger h2 { font-size: clamp(1.3rem, 3vw, 2rem); }
.editorial-list p, .guide-ledger p { max-width: 68ch; color: var(--ink-soft); }
.editorial-list i, .guide-ledger i { font-style: normal; font-size: .8rem; }
.editorial-list > a:hover, .guide-ledger > a:hover { padding-inline: 20px; background: var(--card); }
.function-hero { padding-block: 72px; border-bottom: 1px solid var(--line); }
.function-hero > .container { display: grid; grid-template-columns: 220px 1fr; gap: 50px; align-items: center; }
.function-code { display: grid; place-items: center; aspect-ratio: 1; border-radius: 50%; background: var(--ink); color: var(--paper); font: 600 4.6rem var(--font-display); box-shadow: inset 0 0 0 14px var(--ink), inset 0 0 0 15px var(--paper); }
.function-hero h1 { font-size: clamp(2.4rem, 6vw, 4.8rem); }
.knowledge-article, .guide-article, .resource-detail { padding-block: clamp(50px, 8vw, 100px); }
.knowledge-article > section, .guide-article > section { margin-bottom: 60px; }
.type-function-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 25px; }
.type-function-grid a { display: grid; grid-template-columns: 70px 1fr; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--card); }
.type-function-grid b { color: var(--coral-deep); font: 600 1.1rem var(--font-display); }
.type-function-grid p { grid-column: 1 / -1; margin-top: 10px; color: var(--ink-soft); font-size: .86rem; }
.guide-ledger small { color: var(--coral-deep); font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.guide-article > header, .resource-detail > header { max-width: 850px; margin-bottom: 60px; }
.guide-article > header h1, .resource-detail > header h1 { font-size: clamp(2.4rem, 7vw, 5rem); }
.guide-article > header p, .resource-detail > header p { color: var(--ink-soft); font-size: 1.2rem; }
.guide-source { padding-block: 42px; border-block: 1px solid var(--line-strong); }
.guide-source > div:first-child { max-width: 76ch; }
.mini-stack { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 28px; border-block: 1px solid var(--line); }
.mini-stack a { display: grid; padding: 15px; }
.mini-stack a + a { border-inline-start: 1px solid var(--line); }
.mini-stack b { color: var(--coral-deep); font: 600 1.2rem var(--font-display); }
.mini-stack span { color: var(--ink-faint); font-size: .78rem; }
.takeaway { display: grid; grid-template-columns: 70px 1fr; gap: 20px; padding: 30px; background: var(--ink); color: var(--paper); border-radius: var(--radius); }
.takeaway > span { color: var(--coral); font: 600 2rem var(--font-display); }
.takeaway p { color: var(--paper-2); }

.resource-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.resource-grid > a { position: relative; padding: 20px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); }
.resource-grid > a > span { color: var(--coral-deep); font: 600 .8rem var(--font-display); }
.resource-grid h2 { margin-top: 18px; }
.resource-grid p { color: var(--ink-soft); }
.resource-grid > a:hover { transform: translateY(-5px); box-shadow: var(--shadow-lift); }
.resource-preview { height: 220px; margin-top: 12px; display: grid; place-items: center; color: var(--paper); font: 600 clamp(1.4rem, 4vw, 3rem) var(--font-display); letter-spacing: .08em; background: conic-gradient(from 30deg, var(--analyst), var(--diplomat), var(--explorer), var(--sentinel), var(--analyst)); border-radius: 48% 52% 42% 58% / 55% 42% 58% 45%; }
.resource-detail figure { margin: 0; padding: 22px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); }
.resource-detail figcaption { padding-top: 12px; color: var(--ink-faint); font-size: .8rem; }
.download-panel { display: flex; flex-wrap: wrap; gap: 12px; margin-block: 25px 50px; }
.embed-note { padding: 24px; border-top: 3px solid var(--ink); background: var(--paper-2); }
.embed-note code { display: block; overflow-x: auto; padding: 15px; background: var(--ink); color: var(--paper); border-radius: 8px; }

/* ---------- Editorial reports v2 ---------- */
.report-title h2, .relationship-thesis h2 {
  max-width: 14ch; font-size: clamp(2.4rem, 7vw, 5rem);
}
.comparison-thesis {
  display: grid; grid-template-columns: 1fr 1.15fr 1fr; margin-block: 36px 52px;
  border-block: 3px solid var(--ink);
}
.comparison-thesis > div { padding: 24px; }
.comparison-thesis > div + div { border-inline-start: 1px solid var(--line-strong); }
.comparison-thesis span, .scenario-index {
  color: var(--coral-deep); font: 600 .76rem var(--font-display); letter-spacing: .1em;
}
.comparison-thesis h3 { margin-block: 28px 10px; }
.comparison-thesis p, .baseline-notice { color: var(--ink-soft); }
.baseline-notice {
  margin-block: 30px; padding: 18px 20px; border-inline-start: 4px solid var(--coral);
  background: var(--coral-wash);
}
.stack-contrast {
  display: grid; grid-template-columns: 1fr 36px 1fr; align-items: center;
  margin-top: 28px; padding: 18px 22px; background: var(--ink); color: var(--paper);
}
.stack-contrast > div { display: flex; gap: 10px; align-items: center; }
.stack-contrast > div:last-child { justify-content: flex-end; }
.stack-contrast span { color: var(--paper-2); font-size: .76rem; font-weight: 800; letter-spacing: .1em; }
.stack-contrast b {
  display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid color-mix(in srgb, var(--paper) 35%, transparent);
  border-radius: 50%; font: 600 .84rem var(--font-display);
}
.stack-contrast i { color: var(--coral); text-align: center; font-style: normal; }
.scenario-section { margin-top: 76px; }
.scenario-section > header { max-width: 650px; margin-bottom: 28px; }
.scenario-section > header h2 { font-size: clamp(2rem, 5vw, 3.7rem); }
.scenario-ledger { border-top: 3px solid var(--ink); }
.scenario-ledger > article {
  display: grid; grid-template-columns: 54px minmax(130px, .7fr) 1fr 1fr;
  border-bottom: 1px solid var(--line-strong);
}
.scenario-ledger > article > * { min-width: 0; padding: 22px 16px; }
.scenario-ledger > article > * + * { border-inline-start: 1px solid var(--line); }
.scenario-ledger h3 { font-size: 1.05rem; }
.scenario-side b { color: var(--coral-deep); font: 600 .8rem var(--font-display); }
.scenario-side p, .scenario-ledger aside p { color: var(--ink-soft); font-size: .88rem; }
.scenario-ledger aside { grid-column: 3 / -1; display: grid; grid-template-columns: 52px 1fr; gap: 12px; background: var(--paper-2); }
.scenario-ledger aside span { color: var(--ink-faint); font: 600 .66rem var(--font-display); }
.scenario-ledger aside p { margin: 0; }
.function-explainer {
  display: grid; grid-template-columns: 180px 1fr; gap: 30px; align-items: start;
  margin-block: 44px; padding: 28px; background: var(--ink); color: var(--paper);
}
.function-explainer p { margin: 0; color: var(--paper-2); font-size: 1.16rem; }
.mistype-check {
  display: grid; grid-template-columns: minmax(240px, .72fr) 1.28fr; gap: 50px;
  margin-block: 70px;
}
.mistype-check > div { position: sticky; top: 92px; align-self: start; }
.mistype-check > div h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
.mistype-check > div li { margin-block: 10px; color: var(--ink-soft); }
.mistype-check > ol { margin: 0; padding: 0; border-top: 3px solid var(--ink); list-style: none; }
.mistype-check > ol > li { padding: 22px 6px; border-bottom: 1px solid var(--line-strong); }
.mistype-check > ol h3 { margin-bottom: 14px; font-size: 1rem; }
.mistype-check > ol div { display: grid; grid-template-columns: 64px 1fr; gap: 10px; padding-block: 5px; }
.mistype-check > ol b { color: var(--coral-deep); font: 600 .76rem var(--font-display); }
.mistype-check > ol span { color: var(--ink-soft); font-size: .9rem; }

.relationship-form { grid-template-columns: minmax(0, 1fr) 34px minmax(0, 1fr) minmax(150px, .55fr) auto; }
.relationship-report { padding-block: clamp(50px, 8vw, 90px); }
.relationship-thesis {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 42px; align-items: end;
  padding-bottom: 30px; border-bottom: 3px solid var(--ink);
}
.relationship-thesis > div > p { max-width: 62ch; color: var(--ink-soft); font-size: 1.1rem; }
.context-switcher { display: flex; gap: 5px; padding: 5px; border: 1px solid var(--line-strong); border-radius: 999px; background: var(--card); }
.context-switcher button {
  border: 0; border-radius: 999px; padding: 10px 14px; background: transparent; color: var(--ink-soft);
  font: 800 .78rem var(--font-body); cursor: pointer;
}
.context-switcher button[aria-current="true"] { background: var(--ink); color: var(--paper); }
.context-switcher button:focus-visible { outline: 3px solid color-mix(in srgb, var(--coral) 38%, transparent); }
.context-lede { max-width: 70ch; margin-block: 18px 34px; color: var(--ink-faint); }
.relationship-lenses { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.relationship-lenses article { padding: 18px; border: 1px solid var(--line); background: var(--card); }
.relationship-lenses article.is-different { border-top: 3px solid var(--coral); }
.relationship-lenses article.is-shared { border-top: 3px solid var(--ink); }
.relationship-lenses header { display: grid; grid-template-columns: auto 1fr auto; gap: 9px; align-items: baseline; }
.relationship-lenses header > span { color: var(--coral-deep); font: 600 .74rem var(--font-display); }
.relationship-lenses h3 { font-size: .96rem; }
.relationship-lenses header b { font: 600 1rem var(--font-display); }
.relationship-lenses p { min-height: 112px; color: var(--ink-soft); font-size: .82rem; }
.relationship-lenses article > div { display: flex; gap: 8px; align-items: center; }
.relationship-lenses article > div span { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid var(--line-strong); border-radius: 50%; font-weight: 800; }
.relationship-lenses article > div i { color: var(--ink-faint); font-style: normal; }
.connection-lines, .friction-section, .needs-section { margin-top: 76px; }
.connection-lines > header, .friction-section > header, .needs-section > header { max-width: 700px; margin-bottom: 28px; }
.connection-lines h2, .friction-section h2, .needs-section h2 { font-size: clamp(1.9rem, 5vw, 3.5rem); }
.connection-lines ol { margin: 0; padding: 0; border-top: 3px solid var(--ink); list-style: none; }
.connection-lines li { display: grid; grid-template-columns: 62px 1fr; border-bottom: 1px solid var(--line-strong); }
.connection-lines li > * { padding: 18px 12px; }
.connection-lines li span { color: var(--coral-deep); font: 600 .76rem var(--font-display); }
.connection-lines li p { margin: 0; max-width: 78ch; color: var(--ink-soft); }
.friction-ledger { border-top: 3px solid var(--ink); }
.friction-ledger > article {
  display: grid; grid-template-columns: minmax(170px, .65fr) 1fr 1fr; border-bottom: 1px solid var(--line-strong);
}
.friction-ledger > article > * { min-width: 0; padding: 22px; }
.friction-ledger > article > * + * { border-inline-start: 1px solid var(--line); }
.friction-ledger > article > header { display: grid; grid-template-columns: 34px 1fr; gap: 10px; }
.friction-ledger > article > header > span { color: var(--coral-deep); font: 600 .75rem var(--font-display); }
.friction-ledger small { color: var(--ink-faint); }
.friction-ledger h3 { margin-top: 8px; }
.dialogue { position: relative; }
.dialogue::after {
  content: ""; position: absolute; inset-inline-start: 20px; bottom: -8px; width: 16px; height: 16px;
  background: inherit; border-inline-start: 1px solid var(--line); border-bottom: 1px solid var(--line);
  transform: rotate(-45deg); z-index: 1;
}
.dialogue.first { background: var(--card); }
.dialogue.second { background: var(--coral-wash); }
.dialogue b { color: var(--coral-deep); font: 600 .78rem var(--font-display); }
.dialogue p { color: var(--ink-soft); font-size: .9rem; }
.friction-ledger .misread {
  grid-column: 2 / -1; display: grid; grid-template-columns: 62px 1fr; gap: 12px;
  background: var(--coral-wash); color: var(--ink-soft);
}
.friction-ledger .misread span { color: var(--coral-deep); font: 600 1rem var(--font-display); }
.friction-ledger .misread p { margin: 0; }
.friction-ledger aside {
  grid-column: 2 / -1; display: grid; grid-template-columns: 62px 1fr; gap: 12px; background: var(--ink); color: var(--paper);
}
.friction-ledger aside span { color: var(--coral); font: 600 .67rem var(--font-display); }
.friction-ledger aside p { margin: 0; color: var(--paper-2); }
.needs-section > div { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.needs-section article { padding: 28px; border-top: 3px solid var(--ink); background: var(--card); }
.needs-section h3 { color: var(--coral-deep); font: 600 1.3rem var(--font-display); }
.needs-section li, .agreement-grid li { margin-block: 10px; color: var(--ink-soft); }
.agreement-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; margin-top: 70px; }
.agreement-grid > article { padding-top: 22px; border-top: 3px solid var(--ink); }
.agreement-grid h2 { font-size: clamp(1.4rem, 3vw, 2.3rem); }
.watchout-note {
  display: grid; grid-template-columns: 76px 1fr; gap: 20px; margin-top: 52px; padding: 28px;
  border-radius: var(--radius); background: var(--ink); color: var(--paper);
}
.watchout-note > span { color: var(--coral); font: 600 2rem var(--font-display); }
.watchout-note p { color: var(--paper-2); }
.relationship-disclaimer {
  display: block; margin-top: 22px; padding: 16px 18px; border: 1px dashed var(--line-strong);
  color: var(--ink-faint); font-size: .84rem;
}

.function-atlas > section { margin-bottom: 76px; }
.function-process > header, .position-section > header, .variation-section > header { margin-bottom: 24px; }
.function-process h2, .position-section h2, .variation-section h2 { font-size: clamp(1.8rem, 5vw, 3.3rem); }
.function-process ol { display: grid; grid-template-columns: repeat(3, 1fr); margin: 0; padding: 0; border-block: 3px solid var(--ink); list-style: none; }
.function-process li { display: grid; grid-template-columns: 42px 1fr; gap: 10px; padding: 24px; }
.function-process li + li { border-inline-start: 1px solid var(--line-strong); }
.function-process li span { color: var(--coral-deep); font: 600 .74rem var(--font-display); }
.function-process li p { margin: 0; color: var(--ink-soft); }
.function-experience-grid, .function-balance { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; }
.function-experience-grid > article, .function-balance > article { padding: 28px; border-top: 3px solid var(--ink); background: var(--card); }
.function-experience-grid p { color: var(--ink-soft); }
.not-equal { background: var(--coral-wash) !important; }
.not-equal li, .function-balance li { margin-block: 10px; color: var(--ink-soft); }
.function-contrast-flow { padding: 34px; background: var(--ink); color: var(--paper); }
.function-contrast-flow h2 { max-width: 24ch; font-size: clamp(1.6rem, 4vw, 2.8rem); }
.function-contrast-flow > div { display: flex; gap: 14px; align-items: center; margin-top: 28px; }
.function-contrast-flow > div span { flex: 1; padding: 18px; border: 1px solid color-mix(in srgb, var(--paper) 30%, transparent); text-align: center; }
.function-contrast-flow > div i { color: var(--coral); font-style: normal; }
.position-ledger { border-top: 3px solid var(--ink); }
.position-ledger article { display: grid; grid-template-columns: 180px 1fr .8fr; gap: 22px; padding: 22px 8px; border-bottom: 1px solid var(--line-strong); }
.position-ledger article > div { display: grid; grid-template-columns: 36px 1fr; align-items: baseline; }
.position-ledger article > div span { color: var(--coral-deep); font: 600 .72rem var(--font-display); }
.position-ledger article > p { margin: 0; color: var(--ink-soft); }
.position-ledger nav { display: flex; flex-wrap: wrap; gap: 6px; }
.position-ledger nav a { padding: 7px 9px; border: 1px solid var(--line); border-radius: 999px; font-size: .75rem; font-weight: 800; }
.variation-section > div { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.variation-section > div p { margin: 0; padding: 24px; border-top: 3px solid var(--ink); background: var(--card); }
.source-note { padding-top: 24px; border-top: 1px solid var(--line-strong); }
.source-note ul { padding-inline-start: 1.2em; }
.source-note a { color: var(--ink-soft); }

.guide-question {
  display: grid; grid-template-columns: 72px 1fr; gap: 22px; padding: 30px; background: var(--ink); color: var(--paper);
}
.guide-question > span { color: var(--coral); font: 600 2.4rem var(--font-display); }
.guide-question small { color: var(--paper-2); letter-spacing: .12em; }
.guide-question h2 { max-width: 28ch; margin-top: 10px; font-size: clamp(1.5rem, 4vw, 2.6rem); }
.guide-body { border-top: 3px solid var(--ink); margin-bottom: 60px; }
.guide-body > section { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding: 30px 8px; border-bottom: 1px solid var(--line-strong); }
.guide-body > section > span { color: var(--coral-deep); font: 600 .76rem var(--font-display); }
.guide-body > section > div { min-width: 0; }
.guide-body h1, .guide-body h2, .guide-body p, .guide-question h2 {
  overflow-wrap: anywhere;
  hyphens: auto;
}
.guide-body > section p { max-width: 74ch; color: var(--ink-soft); font-size: 1.02rem; }
.guide-example { padding: 32px; border-inline-start: 5px solid var(--coral); background: var(--coral-wash); }
.guide-example p { max-width: 70ch; font-size: 1.15rem; }
.guide-two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.guide-two-column > article { padding-top: 24px; border-top: 3px solid var(--ink); }
.guide-two-column li { margin-block: 12px; color: var(--ink-soft); }

@media (max-width: 1080px) {
  .nav-links.primary a { font-size: .78rem; padding-inline: .55em; }
  .brand-copy small { display: none; }
}

@media (max-width: 720px) {
  .brand { font-size: 1.05rem; overflow: visible; }
  .brand::after { content: none; }
  .brand-copy { display: block; font-size: 1.05rem; }
  .brand-copy small { display: none; }
  .nav { grid-template-columns: minmax(0, 1fr) auto; justify-content: stretch; }
  .nav > .nav-links:not(.primary) { justify-self: end; }
  .nav.open .nav-links.primary { max-height: calc(100vh - 92px); overflow-y: auto; }
  .nav.open .nav-links.primary a { padding: 12px; font-size: .95rem; }
  .tool-ribbon { grid-template-columns: 1fr; }
  .tool-ribbon a + a { border-inline-start: 0; border-top: 1px solid var(--line); }
  .hub-actions { display: flex; overflow-x: auto; scrollbar-width: none; }
  .hub-actions a { flex: 0 0 auto; min-width: 128px; }
  .topic-columns, .tool-hero-grid, .pair-deep-dive, .resource-grid { grid-template-columns: 1fr; }
  .type-orbit { display: none; }
  .pair-form { grid-template-columns: 1fr; border-radius: 0 0 var(--radius) var(--radius); }
  .pair-separator { display: none; }
  .compare-head { grid-template-columns: 1fr; }
  .compare-head div + div { border-inline-start: 0; border-top: 1px solid var(--line); }
  .compare-rows > section { grid-template-columns: 42px 1fr 1fr; }
  .compare-rows > section > * { padding: 15px 10px; }
  .compare-rows p { font-size: .78rem; line-height: 1.45; }
  .curated-index > div { grid-template-columns: 1fr; }
  .curated-index a:nth-child(odd) { border-inline-end: 0; }
  .pair-directory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pair-directory-grid details:not(:nth-child(4n + 1)) { border-inline-start: 0; }
  .pair-directory-grid details:nth-child(even) { border-inline-start: 1px solid var(--line); }
  .knowledge-triptych { grid-template-columns: 1fr; }
  .function-hero > .container { grid-template-columns: 110px 1fr; gap: 22px; }
  .function-code { font-size: 2.5rem; }
  .type-function-grid { grid-template-columns: 1fr; }
  .editorial-list > a, .guide-ledger > a { grid-template-columns: 34px 1fr; gap: 12px; }
  .editorial-list > a > i, .guide-ledger > a > i { display: none; }
  .mini-stack { grid-template-columns: repeat(2, 1fr); }
  .mini-stack a:nth-child(3) { border-inline-start: 0; border-top: 1px solid var(--line); }
  .mini-stack a:nth-child(4) { border-top: 1px solid var(--line); }
}

@media (max-width: 720px) {
  .comparison-thesis, .mistype-check, .relationship-thesis,
  .needs-section > div, .agreement-grid, .function-experience-grid,
  .function-balance, .guide-two-column { grid-template-columns: 1fr; }
  .comparison-thesis > div + div { border-inline-start: 0; border-top: 1px solid var(--line); }
  .stack-contrast { grid-template-columns: 1fr; gap: 14px; }
  .stack-contrast > div:last-child { justify-content: flex-start; }
  .stack-contrast > i { text-align: start; transform: rotate(90deg); transform-origin: center; }
  .scenario-ledger > article { grid-template-columns: 38px 1fr 1fr; }
  .scenario-ledger > article > h3 { grid-column: 2 / -1; }
  .scenario-ledger > article > .scenario-side:first-of-type { grid-column: 2; }
  .scenario-ledger > article > aside { grid-column: 2 / -1; }
  .function-explainer { grid-template-columns: 1fr; gap: 12px; }
  .mistype-check > div { position: static; }
  .relationship-form { grid-template-columns: 1fr; }
  .relationship-thesis { align-items: start; }
  .context-switcher { width: 100%; overflow-x: auto; border-radius: 14px; }
  .context-switcher button { flex: 1 0 auto; }
  .relationship-lenses { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .relationship-lenses p { min-height: 0; }
  .friction-ledger > article { grid-template-columns: 1fr 1fr; }
  .friction-ledger > article > header { grid-column: 1 / -1; }
  .friction-ledger > article > aside,
  .friction-ledger > article > .misread { grid-column: 1 / -1; }
  .function-process ol, .variation-section > div { grid-template-columns: 1fr; }
  .function-process li + li { border-inline-start: 0; border-top: 1px solid var(--line); }
  .function-contrast-flow > div { flex-direction: column; align-items: stretch; }
  .function-contrast-flow > div i { transform: none; text-align: center; }
  .position-ledger article { grid-template-columns: 1fr; }
  .guide-question { grid-template-columns: 48px 1fr; padding: 24px 18px; }
}

@media (max-width: 430px) {
  .pair-directory-grid { grid-template-columns: 1fr; }
  .pair-directory-grid details:nth-child(even) { border-inline-start: 0; }
  .relationship-lenses { grid-template-columns: 1fr; }
  .scenario-ledger > article { grid-template-columns: 34px 1fr; }
  .scenario-ledger > article > h3,
  .scenario-ledger > article > .scenario-side:first-of-type,
  .scenario-ledger > article > .scenario-side,
  .scenario-ledger > article > aside { grid-column: 2; }
  .scenario-ledger > article > .scenario-side + .scenario-side { border-top: 1px solid var(--line); }
  .friction-ledger > article { grid-template-columns: 1fr; }
  .friction-ledger > article > header,
  .friction-ledger > article > aside { grid-column: 1; }
  .dialogue + .dialogue { border-inline-start: 0 !important; border-top: 1px solid var(--line); }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition: none !important; }
  .hero-disc { animation: none; }
}