/* ============================================================
   The Labs · Fariborz Aref
   Shares the visual system of fariborzaref.com:
   black bands above and below, a paper field between,
   EB Garamond for text, Archivo for apparatus.
   ============================================================ */

:root {
  --bar: #12100c;
  --paper: #f8f7f4;
  --card: #fdfcfa;
  --ink: #1a1712;
  --ink-soft: #544d40;
  --ink-faint: #8a8272;
  --hair: #ddd8cd;
  --hair-strong: #8a8272;
  --accent: #6b4d1f;
  --accent-soft: #efe7d8;

  /* chart palette: one warm, one cool, three supporting */
  --c-blue: #2c4a6b;
  --c-green: #4f6b4a;
  --c-terra: #a5502f;
  --c-gold: #a57c3a;
  --c-plum: #6b5a7a;
  --c-stone: #a29a8a;

  --serif: "EB Garamond", Georgia, "Times New Roman", serif;
  --sans: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;

  --measure: 40rem;
  --site-w: 68rem;
}

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

html { font-size: 18px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1, "liga" 1, "onum" 1;
}

a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--bar); color: var(--paper); padding: 8px 14px; }
.skip:focus { left: 8px; }

.apparatus,
.brand,
.nav a,
.kicker,
.rn-label,
.btn,
.seg button,
.note-label,
.foot,
.stat-label,
.index-title {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

/* ---------------- header ---------------- */

.site-header { position: sticky; top: 0; z-index: 30; background: var(--bar); border-bottom: 1px solid rgba(246, 245, 241, 0.12); }
.header-inner {
  max-width: var(--site-w);
  margin: 0 auto;
  padding: 0.95rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}
.brand { font-size: 0.82rem; font-weight: 500; letter-spacing: 0.1em; color: var(--paper); text-decoration: none; }
.brand span { color: rgba(246, 245, 241, 0.5); margin-left: 0.6em; }
.nav { margin-left: auto; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.6rem; }
.nav a {
  font-size: 0.66rem;
  font-weight: 500;
  color: rgba(246, 245, 241, 0.72);
  text-decoration: none;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.nav a:hover { color: var(--paper); }
.nav a[aria-current="page"] { color: var(--paper); border-bottom-color: rgba(246, 245, 241, 0.6); }
.nav .ext::after { content: " \2197"; letter-spacing: 0; }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 40px;
  height: 36px;
  background: transparent;
  border: 0;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.nav-toggle span { display: block; width: 22px; height: 1.5px; background: var(--paper); transition: transform 0.25s ease; }
.nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* ---------------- page frame ---------------- */

main { display: block; }
.wrap { max-width: var(--site-w); margin: 0 auto; padding: 0 1.4rem; }
.col { max-width: var(--measure); }

.hero { padding: 5.2rem 0 3.2rem; border-bottom: 1px solid var(--hair); }
.kicker { display: inline-flex; align-items: center; gap: 0.7rem; font-size: 0.64rem; font-weight: 500; color: var(--ink-soft); margin: 0 0 1.6rem; }
.kicker::before { content: "\00A7"; font-family: var(--serif); font-style: italic; font-size: 1.3rem; letter-spacing: 0; text-transform: none; color: var(--accent); line-height: 1; }

h1, h2, h3 { font-weight: 400; color: var(--ink); margin: 0; line-height: 1.12; }
h1 { font-size: clamp(2.5rem, 5.4vw, 3.9rem); letter-spacing: -0.012em; margin-bottom: 1.4rem; }
h1 em, h2 em { font-style: italic; color: var(--accent); }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); margin-bottom: 1rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }

.lead { font-size: 1.28rem; line-height: 1.6; max-width: 38rem; margin: 0 0 1rem; }
.lead.soft { font-size: 1.08rem; color: var(--ink-soft); }
p { margin: 0 0 1rem; }

/* contents */
.index { padding: 2.6rem 0 3rem; border-bottom: 1px solid var(--hair); }
.index-title { font-size: 0.62rem; color: var(--ink-faint); margin-bottom: 1rem; }
.index ol { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: 3rem; }
.index li { break-inside: avoid; border-top: 1px solid var(--hair); }
.index a { display: grid; grid-template-columns: 2.4rem 1fr; gap: 0.2rem 0.6rem; padding: 0.85rem 0; text-decoration: none; }
.index .rn { font-style: italic; color: var(--accent); font-size: 1.05rem; grid-row: span 2; }
.index .nm { font-size: 1.12rem; line-height: 1.3; }
.index .ds { font-family: var(--sans); font-size: 0.72rem; color: var(--ink-faint); letter-spacing: 0.02em; }
.index a:hover .nm { color: var(--accent); }

/* ---------------- demonstrations ---------------- */

.demo { padding: 4.8rem 0; border-bottom: 1px solid var(--hair); scroll-margin-top: 70px; }
.demo-head { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 4rem; align-items: start; margin-bottom: 2.4rem; }
.rn-label { display: block; font-size: 0.62rem; color: var(--accent); margin-bottom: 0.9rem; }
.rn-label b { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 1.15rem; letter-spacing: 0; text-transform: none; margin-right: 0.5rem; }
.lineage {
  font-style: italic;
  color: var(--ink-soft);
  border-left: 1px solid var(--accent);
  padding-left: 1.1rem;
  margin: 0.2rem 0 0;
  font-size: 1.04rem;
}
.intro { font-size: 1.1rem; max-width: 38rem; }

.panel {
  background: var(--card);
  border: 1px solid var(--hair);
  padding: 2rem 2.2rem 1.6rem;
}
.panel-grid { display: grid; grid-template-columns: 1.55fr 1fr; gap: 2.4rem; align-items: start; }

.readout { font-size: 1.08rem; line-height: 1.55; min-height: 3.2em; margin: 0 0 1.2rem; }
.readout b { font-weight: 500; color: var(--accent); }

.note { font-family: var(--sans); font-size: 0.72rem; line-height: 1.55; color: var(--ink-faint); margin: 1.2rem 0 0; padding-top: 0.9rem; border-top: 1px solid var(--hair); }
.note-label { color: var(--ink-soft); font-size: 0.6rem; margin-right: 0.5rem; }

.lesson { margin: 2rem 0 0; max-width: 40rem; font-size: 1.22rem; line-height: 1.5; }
.lesson::before { content: "Lesson"; display: block; font-family: var(--sans); font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.5rem; }

/* controls */
.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 0.8rem 1.4rem; margin-top: 1.2rem; }
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-size: 0.66rem; font-weight: 500;
  padding: 0.85rem 1.3rem;
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--hair-strong); }
.btn.ghost:hover { border-color: var(--ink); background: transparent; color: var(--ink); }
.btn:disabled { opacity: 0.4; cursor: default; }

.seg { display: inline-flex; border: 1px solid var(--hair-strong); }
.seg button {
  font-size: 0.62rem; font-weight: 500;
  padding: 0.65rem 0.95rem;
  background: transparent; color: var(--ink-soft);
  border: 0; cursor: pointer;
}
.seg button + button { border-left: 1px solid var(--hair-strong); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }

.range-row { display: flex; align-items: center; gap: 1rem; flex: 1 1 260px; }
.range-row label { font-family: var(--sans); font-size: 0.72rem; color: var(--ink-soft); white-space: nowrap; }
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  flex: 1; height: 2px; background: var(--hair-strong); outline: none; margin: 14px 0;
}
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--accent); border: 3px solid var(--card); box-shadow: 0 0 0 1px var(--accent); cursor: pointer; }
input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--accent); border: 3px solid var(--card); box-shadow: 0 0 0 1px var(--accent); cursor: pointer; }

.legend { display: flex; flex-wrap: wrap; gap: 0.4rem 1.2rem; font-family: var(--sans); font-size: 0.72rem; color: var(--ink-soft); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 0.45rem; vertical-align: -1px; }
.legend i.line { width: 18px; height: 2px; border-radius: 0; vertical-align: 3px; }

/* svg charts */
.chart { width: 100%; height: auto; overflow: visible; touch-action: pan-y; }
.chart text { font-family: var(--sans); font-size: 11px; fill: var(--ink-faint); }
.chart .t-title { font-size: 11px; fill: var(--ink-soft); letter-spacing: 0.04em; }
.chart .t-label { font-size: 12px; fill: var(--ink); }
.chart .t-serif { font-family: var(--serif); font-size: 15px; fill: var(--ink); }
.chart .grid { stroke: var(--hair); stroke-width: 1; }
.chart .axis { stroke: var(--hair-strong); stroke-width: 1; }
.chart .fade { transition: opacity 0.45s ease; }
.chart .move { transition: all 0.45s ease; }

/* stat blocks */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 0; border-top: 1px solid var(--hair); }
.stat { padding: 1rem 1rem 1rem 0; border-bottom: 1px solid var(--hair); }
.stat-label { display: block; font-size: 0.58rem; color: var(--ink-faint); margin-bottom: 0.3rem; }
.stat-val { font-size: 2rem; line-height: 1.1; color: var(--ink); font-variant-numeric: lining-nums tabular-nums; }
.stat-val small { font-size: 1rem; color: var(--ink-soft); }

/* ---------------- birth lottery ---------------- */
.lottery { text-align: center; padding: 2.6rem 2.2rem 1.8rem; }
.lot-kicker { font-family: var(--sans); font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); }
.lot-name { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.15; margin: 0.6rem 0 0.3rem; min-height: 1.2em; font-style: italic; }
.lot-name.spin { color: var(--ink-faint); }
.lot-band { font-family: var(--sans); font-size: 0.78rem; color: var(--ink-soft); min-height: 1.4em; }
.lot-bars { max-width: 34rem; margin: 2rem auto 0; text-align: left; opacity: 0; transition: opacity 0.4s ease; }
.lot-bars.show { opacity: 1; }
.bar-row { margin-bottom: 1.1rem; }
.bar-top { display: flex; justify-content: space-between; font-family: var(--sans); font-size: 0.74rem; color: var(--ink-soft); margin-bottom: 0.4rem; }
.bar-top b { font-family: var(--serif); font-weight: 400; font-size: 1.1rem; color: var(--ink); }
.track { position: relative; height: 6px; background: var(--accent-soft); }
.fill { position: absolute; left: 0; top: 0; bottom: 0; width: 0; transition: width 0.7s cubic-bezier(.2,.7,.2,1); }
.tick-world { position: absolute; top: -4px; bottom: -4px; width: 1px; background: var(--ink); }
.bar-ends { display: flex; justify-content: space-between; font-family: var(--sans); font-size: 0.62rem; color: var(--ink-faint); margin-top: 0.3rem; }
.lot-take { font-size: 1.15rem; font-style: italic; max-width: 32rem; margin: 1.6rem auto 0; min-height: 1.5em; }
.lot-tally { font-family: var(--sans); font-size: 0.74rem; color: var(--ink-soft); margin-top: 1rem; min-height: 1.4em; }
.lot-tally b { color: var(--accent); }
.lottery .controls { justify-content: center; }

/* ---------------- forking paths ---------------- */
.fp-grid { display: grid; grid-template-columns: repeat(10, 1fr); gap: 6px; margin: 1rem 0; }
.fp-cell { aspect-ratio: 1; border: 1px solid var(--hair); background: transparent; font-family: var(--sans); font-size: 0.6rem; display: grid; place-items: center; color: transparent; transition: background 0.2s ease; }
.fp-cell.ns { background: var(--accent-soft); color: var(--ink-faint); }
.fp-cell.sig { background: var(--c-terra); border-color: var(--c-terra); color: #fff; }
.fp-p { font-size: 2.6rem; line-height: 1; font-variant-numeric: tabular-nums; }
.fp-p.sig { color: var(--c-terra); }

/* ---------------- closing ---------------- */
.closing { padding: 5rem 0 4rem; }
.coda { font-size: clamp(1.5rem, 2.8vw, 2.1rem); line-height: 1.35; max-width: 44rem; margin: 0 0 2.4rem; }
.coda em { color: var(--accent); }
.cross { display: inline-flex; align-items: center; gap: 1rem; padding: 1.1rem 1.4rem; border: 1px solid var(--hair-strong); text-decoration: none; transition: border-color 0.15s ease; }
.cross:hover { border-color: var(--ink); }
.cross small { display: block; font-family: var(--sans); font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); }
.cross span { font-size: 1.15rem; }
.sources { margin-top: 3.2rem; padding-top: 1.4rem; border-top: 1px solid var(--hair); font-family: var(--sans); font-size: 0.74rem; line-height: 1.7; color: var(--ink-soft); }
.sources h3 { font-family: var(--sans); font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 0.8rem; }
.sources ol { margin: 0; padding-left: 1.2rem; }
.sources li { margin-bottom: 0.35rem; }
.sources a { color: var(--ink); }

/* ---------------- home ---------------- */
.labs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; padding: 3.6rem 0; border-bottom: 1px solid var(--hair); }
.lab-card { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--hair); text-decoration: none; transition: border-color 0.2s ease, transform 0.3s ease; }
.lab-card:hover { border-color: var(--hair-strong); transform: translateY(-3px); }
.lab-card .fig { border-bottom: 1px solid var(--hair); padding: 1.6rem 1.8rem; background: var(--paper); }
.lab-card .body { padding: 1.8rem; display: flex; flex-direction: column; flex: 1; }
.lab-card h2 { font-size: 2rem; margin-bottom: 0.6rem; }
.lab-card p { color: var(--ink-soft); }
.lab-card ul { list-style: none; margin: 0.6rem 0 1.4rem; padding: 0; }
.lab-card li { display: grid; grid-template-columns: 2rem 1fr; padding: 0.55rem 0; border-top: 1px solid var(--hair); }
.lab-card li i { color: var(--accent); }
.lab-card .go { margin-top: auto; font-family: var(--sans); font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent); }
.badge { font-family: var(--sans); font-size: 0.56rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-terra); margin-left: 0.5rem; }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 2.4rem; padding: 3.6rem 0; border-bottom: 1px solid var(--hair); }
.principles .p { border-top: 1px solid var(--hair-strong); padding-top: 1rem; }
.principles .p i { color: var(--accent); font-size: 1.2rem; }
.principles h3 { margin: 0.4rem 0 0.5rem; }
.principles p { color: var(--ink-soft); font-size: 1rem; margin: 0; }

.strip { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; padding: 3.6rem 0 4.4rem; align-items: start; }
.strip p { color: var(--ink-soft); }
.strip a.text { color: var(--ink); text-decoration-color: var(--hair-strong); text-underline-offset: 3px; }
.strip a.text:hover { color: var(--accent); }

/* ---------------- courses ---------------- */
.course-list { border-top: 1px solid var(--hair-strong); }
.course { border-bottom: 1px solid var(--hair); }
.course summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: baseline; padding: 1.5rem 0; }
.course summary::-webkit-details-marker { display: none; }
.course summary h3 { font-size: 1.55rem; margin: 0; }
.course summary .sub { display: block; font-style: italic; color: var(--ink-soft); font-size: 1.05rem; margin-top: 0.2rem; }
.course summary .plus { font-family: var(--sans); font-size: 1.2rem; color: var(--accent); transition: transform 0.2s ease; }
.course[open] summary .plus { transform: rotate(45deg); }
.course-body { display: grid; grid-template-columns: 1.1fr 1fr; gap: 2.4rem; padding: 0 0 2rem; }
.course-body h4 { font-family: var(--sans); font-size: 0.6rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink-faint); font-weight: 500; margin: 0 0 0.6rem; }
.course-body ul { margin: 0; padding: 0; list-style: none; }
.course-body li { padding: 0.5rem 0; border-top: 1px solid var(--hair); }
.course-body li b { font-weight: 500; }
.course-tag { display: inline-block; margin-top: 1rem; font-family: var(--sans); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent-soft); }
.shape { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; font-size: 1.15rem; margin: 1rem 0 0; }
.shape span { padding: 0.35rem 0.8rem; border: 1px solid var(--hair-strong); background: var(--card); }
.shape i { color: var(--accent); font-style: normal; }

/* ---------------- footer ---------------- */
.site-footer { background: var(--bar); color: rgba(246, 245, 241, 0.6); }
.foot-inner { max-width: var(--site-w); margin: 0 auto; padding: 1.4rem; display: flex; flex-wrap: wrap; gap: 0.8rem 1.6rem; justify-content: space-between; align-items: center; }
.foot { font-size: 0.6rem; }
.foot a { color: rgba(246, 245, 241, 0.75); text-decoration: none; margin-left: 1.4rem; }
.foot a:first-child { margin-left: 0; }
.foot a:hover { color: var(--paper); }

/* ---------------- tooltip ---------------- */
.tip { position: fixed; z-index: 40; pointer-events: none; background: var(--bar); color: var(--paper); font-family: var(--sans); font-size: 0.72rem; line-height: 1.45; padding: 0.5rem 0.7rem; max-width: 240px; opacity: 0; transition: opacity 0.12s ease; }
.tip.show { opacity: 1; }
.tip b { font-weight: 500; color: #f0d9a8; }

/* ---------------- reveal ---------------- */
.js .rv { opacity: 0; transform: translateY(16px); transition: opacity 0.8s cubic-bezier(.16,.7,.2,1), transform 0.8s cubic-bezier(.16,.7,.2,1); }
.js .rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .rv { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ---------------- responsive ---------------- */
@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--bar); border-top: 1px solid rgba(246,245,241,0.12); display: none; }
  .nav.open { display: block; }
  .nav ul { flex-direction: column; gap: 0; padding: 0.4rem 1.4rem 1rem; }
  .nav li { border-bottom: 1px solid rgba(246,245,241,0.1); }
  .nav a { display: block; padding: 0.95rem 0; font-size: 0.72rem; border: 0; }
  .nav a[aria-current="page"] { color: #f0d9a8; }

  .demo-head, .panel-grid, .labs-grid, .strip, .course-body { grid-template-columns: 1fr; gap: 1.6rem; }
  .principles { grid-template-columns: 1fr; gap: 1.6rem; }
  .index ol { columns: 1; }
}

@media (max-width: 600px) {
  html { font-size: 17px; }
  .wrap, .header-inner, .foot-inner { padding-left: 16px; padding-right: 16px; }
  .brand span { display: none; }
  .hero { padding: 3.4rem 0 2.4rem; }
  .demo { padding: 3.4rem 0; }
  .panel { padding: 1.4rem 1rem 1.2rem; margin-left: -4px; margin-right: -4px; }
  .lottery { padding: 1.8rem 1rem 1.4rem; }
  .fp-grid { grid-template-columns: repeat(5, 1fr); }
  .controls .btn { flex: 1 1 auto; justify-content: center; }
  .foot a { margin-left: 1rem; }
  .stat-val { font-size: 1.6rem; }
}

/* ---------------- course and lab matrix ---------------- */
.matrix-sec { padding: 4.4rem 0 4.8rem; border-top: 1px solid var(--hair); }
.mx-wrap { background: var(--card); border: 1px solid var(--hair); padding: 1.6rem 1.8rem 1.2rem; }
.mx { width: 100%; border-collapse: collapse; table-layout: fixed; }
.mx th, .mx td { padding: 0; text-align: center; vertical-align: middle; }
.mx thead th { font-family: var(--sans); font-weight: 500; text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.56rem; color: var(--ink-faint); }
.mx .mx-corner { width: 36%; }
.mx .mx-group { padding-bottom: 0.5rem; border-bottom: 1px solid var(--hair-strong); text-align: left; padding-left: 0.4rem; }
.mx .mx-col { padding: 0.55rem 0 0.7rem; }
.mx .mx-col a { font-family: var(--serif); font-style: italic; font-size: 1rem; letter-spacing: 0; text-transform: none; color: var(--accent); text-decoration: none; }
.mx .mx-col a:hover { text-decoration: underline; text-underline-offset: 3px; }
.mx tbody th { text-align: left; font-weight: 400; font-size: 1rem; padding: 0.55rem 0.8rem 0.55rem 0; border-top: 1px solid var(--hair); line-height: 1.3; }
.mx tbody td { border-top: 1px solid var(--hair); height: 2.6rem; }
.mx tbody tr:hover th { color: var(--accent); }
.mx tbody tr:hover td { background: rgba(107, 77, 31, 0.04); }
.mx .mx-split { border-left: 1px solid var(--hair-strong); }
.mx-dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; background: var(--ink); transition: transform 0.15s ease, background 0.15s ease; }
.mx-dot:hover { background: var(--accent); transform: scale(1.35); }
.mx-none { display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--hair); }
.mx tfoot th, .mx tfoot td { border-top: 1px solid var(--hair-strong); padding: 0.7rem 0 0.2rem; font-family: var(--sans); font-size: 0.72rem; color: var(--ink-soft); font-weight: 400; }
.mx tfoot th { text-align: left; text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.56rem; color: var(--ink-faint); }
.mx-key { list-style: none; margin: 1.4rem 0 0; padding: 0; columns: 3; column-gap: 2rem; }
.mx-key li { break-inside: avoid; margin-bottom: 0.5rem; font-size: 0.95rem; }
.mx-key a { text-decoration: none; color: var(--ink-soft); }
.mx-key a:hover { color: var(--accent); }
.mx-key i { display: block; font-family: var(--sans); font-style: normal; font-size: 0.56rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); }

@media (max-width: 900px) { .mx-key { columns: 2; } }
@media (max-width: 600px) {
  .mx-wrap { padding: 1rem 0.6rem 0.8rem; margin: 0 -4px; }
  .mx .mx-corner { width: 34%; }
  .mx tbody th { font-size: 0.8rem; padding-right: 0.4rem; }
  .mx .mx-group { font-size: 0.48rem; letter-spacing: 0.08em; padding-left: 0.2rem; }
  .mx .mx-col a { font-size: 0.8rem; }
  .mx-dot { width: 9px; height: 9px; }
  .mx tfoot th { font-size: 0.46rem; letter-spacing: 0.06em; }
  .mx-key { columns: 1; }
}