/* Práctica CMM — minimal cálido / editorial científico */
:root {
  --bg: #f5efe4;
  --paper: #fbf7ef;
  --plate: #fffdf9;
  --ink: #2a2018;
  --ink-soft: #5c4f41;
  --muted: #76685a;
  --line: #e2d6c3;
  --line-soft: #ece3d3;
  --accent: #b4502c;      /* terracota: epileptogénico */
  --accent-deep: #8e3a1d;
  --accent-wash: #f3dfd2;
  --ochre: #c58a2a;
  --nav-bg: #a8462a;       /* barra superior: terracota, el color de acento del sitio */
  --nav-line: #7f3119;
  --sage: #66754b;        /* salvia: sano */
  --sage-wash: #e4e7d6;

  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-body: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --font-tex: KaTeX_Main, "Latin Modern Roman", "CMU Serif", "Times New Roman", serif;   /* la misma tipografía de las fórmulas (LaTeX) */

  --wrap: 1180px;
  --gutter: clamp(20px, 4vw, 48px);
  --radius: 14px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; overflow-x: clip; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-deep); text-underline-offset: 3px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent-wash); }

.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }
.mono { font-family: var(--font-tex); font-size: 1em; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- barra superior ---------- */
.progress { position: fixed; inset: 0 0 auto 0; height: 3px; background: #f3c57c; transform-origin: 0 50%; transform: scaleX(0); z-index: 60; }
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--nav-bg) 94%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--nav-line);
  box-shadow: 0 6px 18px -14px rgba(120, 60, 25, .55);
}
.nav-in { display: flex; align-items: center; gap: 24px; height: 88px; }
.brand { font-family: var(--font-display); font-weight: 600; font-size: 24px; color: #fff8ee; text-decoration: none; white-space: nowrap; }
.brand i { color: #ffd2b8; font-style: italic; font-weight: 400; }
.nav nav { min-width: 0; margin-left: auto; }      /* sin esto la lista no se encoge y ensancha la página */
.nav ul { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; overflow-x: auto; scrollbar-width: none; }
.nav ul::-webkit-scrollbar { display: none; }
.nav li a {
  display: block; padding: 11px 16px; border-radius: 999px; white-space: nowrap;
  color: #f8e6d8; text-decoration: none; font-size: 17.5px;
  transition: background-color .2s, color .2s;
}
.nav li a:hover { background: rgba(255, 248, 238, .16); color: #fff; }
.nav li a[aria-current="true"] { background: #fff8ee; color: var(--accent-deep); }

/* ---------- hero ---------- */
.hero { position: relative; padding: clamp(56px, 10vh, 120px) 0 0; }
.eyebrow { font-family: var(--font-tex); font-size: 17px; color: var(--accent-deep); margin: 0 0 22px; }
.hero h1 {
  font-family: var(--font-display); font-weight: 400; letter-spacing: -0.02em;
  font-size: clamp(48px, 8.2vw, 112px); line-height: 0.98; margin: 0; max-width: 13ch;
}
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(28px, 5vw, 72px); align-items: end; margin-top: 36px; }
.lede { font-size: clamp(18px, 1.5vw, 21px); line-height: 1.55; color: var(--ink-soft); margin: 0; max-width: 54ch; }
.meta { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.meta li { display: flex; justify-content: space-between; gap: 18px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.meta span:first-child { color: var(--muted); }
.meta span:last-child { text-align: right; }
.trace { position: relative; margin-top: clamp(36px, 6vh, 72px); height: clamp(150px, 24vh, 240px); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trace canvas { width: 100%; height: 100%; display: block; }

/* ---------- secciones ---------- */
section { padding: clamp(72px, 11vh, 132px) 0 0; }
.sec-head { display: grid; grid-template-columns: auto 1fr; gap: clamp(18px, 3vw, 44px); align-items: start; margin-bottom: clamp(32px, 5vh, 56px); }
.num { font-family: var(--font-display); font-style: italic; font-weight: 300; font-size: clamp(56px, 8vw, 116px); line-height: .8; color: var(--accent); }
.sec-head h2 { font-family: var(--font-display); font-weight: 400; font-size: clamp(30px, 3.8vw, 52px); line-height: 1.08; letter-spacing: -0.015em; margin: 0 0 14px; }
.sec-head p { margin: 0; color: var(--ink-soft); max-width: 68ch; font-size: 18px; }
h3 { font-family: var(--font-display); font-weight: 500; font-size: clamp(22px, 2.2vw, 28px); line-height: 1.2; margin: 0 0 12px; }
.sub { margin-top: clamp(48px, 7vh, 80px); }
.sub > p, .prose p { max-width: 70ch; color: var(--ink-soft); }
.kicker { font-family: var(--font-tex); font-size: 15.5px; color: var(--muted); margin: 0 0 10px; }

.cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); }
.cols-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 28px); }
.eq {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(18px, 2.5vw, 30px); overflow-x: auto;
}
.eq .katex-display { margin: .4em 0; }
.params { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip { font-family: var(--font-tex); font-size: 15px; padding: 5px 11px; border: 1px solid var(--line); border-radius: 999px; background: var(--plate); white-space: nowrap; }
.chip.epi { border-color: var(--accent); color: var(--accent-deep); background: var(--accent-wash); }
.chip.sano { border-color: var(--sage); color: #46532f; background: var(--sage-wash); }

/* ---------- hallazgos ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--ink); margin-top: 28px; }
.stat { padding: 20px 20px 22px 0; border-bottom: 1px solid var(--line); }
.stat + .stat { padding-left: 20px; border-left: 1px solid var(--line); }
.stat b { display: block; font-family: var(--font-display); font-weight: 400; font-size: clamp(30px, 3.4vw, 46px); line-height: 1.05; font-variant-numeric: tabular-nums; }
.stat > span { display: block; margin-top: 8px; font-size: 14.5px; color: var(--muted); line-height: 1.45; }
.findings { list-style: none; padding: 0; margin: 0; counter-reset: f; }
.findings li { counter-increment: f; display: grid; grid-template-columns: 44px 1fr; padding: 16px 0; border-top: 1px solid var(--line); color: var(--ink-soft); }
.findings li::before { content: counter(f, decimal-leading-zero); font-family: var(--font-tex); font-size: 15px; color: var(--accent-deep); padding-top: 4px; }
.findings strong { color: var(--ink); font-weight: 700; }
.note { border-left: 3px solid var(--ochre); background: var(--paper); padding: 16px 20px; border-radius: 0 var(--radius) var(--radius) 0; color: var(--ink-soft); font-size: 15.5px; }
.note strong { color: var(--ink); }

/* ---------- tablas ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; font-variant-numeric: tabular-nums; }
th, td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line-soft); white-space: nowrap; }
th { font-family: var(--font-tex); font-size: 15px; color: var(--muted); font-weight: 500; }
tr:last-child td { border-bottom: 0; }
.tag { display: inline-block; font-size: 14px; font-family: var(--font-tex); padding: 2px 8px; border-radius: 999px; }
#l1fp { font-family: var(--font-tex); font-size: 14px; }
#l1fp th, #l1fp td { padding: 8px 7px; }
#l1fp .tag { font-size: 12.5px; padding: 2px 6px; }
.tag.ok { background: var(--sage-wash); color: #46532f; }
.tag.no { background: var(--accent-wash); color: var(--accent-deep); }

/* ---------- laboratorio interactivo ---------- */
.lab { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: clamp(16px, 2.4vw, 30px); }
.lab-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 20px; margin-bottom: 18px; }
.lab-head h3 { margin: 0; }
.live { font-family: var(--font-tex); font-size: 16.5px; color: var(--accent-deep); display: inline-flex; align-items: center; gap: 8px; }
.live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .25; } }
.lab-grid { display: grid; grid-template-columns: 290px minmax(0, 1fr); gap: clamp(18px, 2.4vw, 32px); }
.controls { display: flex; flex-direction: column; gap: 18px; }
.ctl label, .ctl .lbl { display: flex; justify-content: space-between; align-items: baseline; font-size: 14.5px; color: var(--ink-soft); margin-bottom: 6px; }
.ctl output { font-family: var(--font-tex); font-size: 15.5px; color: var(--ink); background: var(--plate); border: 1px solid var(--line); border-radius: 6px; padding: 1px 8px; min-width: 58px; text-align: right; }
.ctl small { display: block; color: var(--muted); font-size: 13px; line-height: 1.4; margin-top: 4px; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 28px; background: transparent; cursor: pointer; margin: 0; }
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(to right, var(--accent) var(--fill, 50%), var(--line) var(--fill, 50%)); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 4px; background: var(--line); }
input[type="range"]::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--accent); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; margin-top: -8px; border-radius: 50%; background: var(--plate); border: 2px solid var(--accent); box-shadow: 0 2px 6px rgba(90, 50, 20, .18); transition: transform .15s var(--ease-out); }
input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--plate); border: 2px solid var(--accent); }
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.18); }
.seg { position: relative; display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; background: var(--line-soft); border-radius: 10px; padding: 3px; gap: 3px; }
.seg button, .btn {
  font: inherit; font-size: 14px; border: 0; border-radius: 8px; padding: 9px 10px; min-height: 40px;
  background: transparent; color: var(--ink-soft); cursor: pointer; transition: background-color .18s, color .18s, transform .12s var(--ease-out);
}
.seg button { position: relative; z-index: 1; }
.seg button[aria-pressed="true"] { color: var(--ink); }
.seg::before {
  content: ""; position: absolute; top: 3px; bottom: 3px; left: 3px; width: calc((100% - 9px) / 2);
  background: var(--plate); border-radius: 8px; box-shadow: 0 1px 3px rgba(90, 50, 20, .14);
  transition: transform .2s cubic-bezier(0.23, 1, 0.32, 1);
}
.seg:has(button:nth-child(2)[aria-pressed="true"])::before { transform: translateX(calc(100% + 3px)); }
@supports not selector(:has(a)) {
  .seg::before { display: none; }
  .seg button[aria-pressed="true"] { background: var(--plate); box-shadow: 0 1px 3px rgba(90, 50, 20, .14); }
}
.btn { background: var(--ink); color: var(--paper); padding: 9px 16px; }
.btn:hover { background: var(--accent-deep); }
.btn:active, .seg button:active { transform: scale(.97); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { background: var(--line-soft); }
.presets { display: flex; flex-wrap: wrap; gap: 6px; }
.presets .btn { padding: 6px 12px; min-height: 36px; font-family: var(--font-tex); font-size: 15px; }
.presets .btn[aria-pressed="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }

.readout { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 0; border-top: 1px solid var(--line); margin-top: 4px; }
.readout div { padding: 10px 10px 10px 0; border-bottom: 1px solid var(--line); }
.readout dt { font-size: 12.5px; color: var(--muted); }
.readout dd { margin: 2px 0 0; font-family: var(--font-display); font-size: 22px; line-height: 1.2; font-variant-numeric: tabular-nums; }
.readout dd.epi { color: var(--accent-deep); }
.readout dd.sano { color: #46532f; }

.plots { display: grid; gap: 12px; min-width: 0; }
.plots.two { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
.plot { position: relative; background: var(--plate); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 10px 10px 4px; min-width: 0; }
.plot h4 { margin: 0 0 2px 6px; font-family: var(--font-tex); font-weight: 500; font-size: 15.5px; color: var(--muted); }
.plot canvas { width: 100%; display: block; touch-action: pan-y; }
.plot .legend { display: flex; flex-wrap: wrap; gap: 4px 14px; padding: 0 6px 6px; font-size: 12.5px; color: var(--muted); }
.legend i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 6px; }
.busy { position: absolute; right: 12px; top: 10px; font-family: var(--font-tex); font-size: 14px; color: var(--accent-deep); opacity: 0; transition: opacity .15s; }
.busy.on { opacity: 1; }

.timeline { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; margin-top: 4px; }
.timeline .btn { width: 46px; height: 46px; border-radius: 50%; padding: 0; display: grid; place-items: center; }
.playbtn path { transform-box: fill-box; transform-origin: center; transition: opacity .12s ease-out, transform .12s ease-out; }
.playbtn .ic-pause, .playbtn.is-playing .ic-play { opacity: 0; transform: scale(0.9); }
.playbtn.is-playing .ic-pause { opacity: 1; transform: none; }
.timeline output { font-family: var(--font-tex); font-size: 15.5px; min-width: 92px; text-align: right; }
.recruit { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; }
.recruit li { display: grid; grid-template-columns: 28px 46px 1fr 64px; align-items: center; gap: 8px; font-family: var(--font-tex); font-size: 14.5px; color: var(--muted); }
.recruit .dot { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 11px; border: 2px solid var(--sage); color: var(--ink); background: var(--plate); transition: background-color .3s, color .3s; }
.recruit li.epi .dot { border-color: var(--accent); }
.recruit li.on .dot { background: var(--accent); color: #fff; border-color: var(--accent); }
.recruit li.pop .dot { animation: recruit-pop 220ms cubic-bezier(0.23, 1, 0.32, 1); }
@keyframes recruit-pop { 50% { transform: scale(1.18); } }
.recruit .bar { height: 4px; border-radius: 4px; background: var(--line-soft); position: relative; overflow: hidden; }
.recruit .bar i { position: absolute; inset: 0 auto 0 0; background: var(--line); border-radius: 4px; transition: background-color .3s; }
.recruit li.on .bar i { background: var(--accent); }
.recruit li.on { color: var(--ink); }
.tip { position: absolute; pointer-events: none; background: var(--ink); color: var(--paper); font-family: var(--font-tex); font-size: 14px; line-height: 1.5; padding: 7px 10px; border-radius: 8px; white-space: nowrap; opacity: 0; transition: opacity .12s; z-index: 5; }
.tip.on { opacity: 1; }

/* ---------- láminas (figuras del notebook) ---------- */
.plates { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(16px, 2.2vw, 28px); margin-top: 24px; }
.plates.one { grid-template-columns: 1fr; }
.plate { margin: 0; background: var(--plate); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.plate.wide { grid-column: 1 / -1; }
.plate-tabs { display: flex; gap: 2px; padding: 8px 8px 0; overflow-x: auto; }
.plate-tabs button { font-family: var(--font-tex); font-size: 15px; border: 0; background: transparent; color: var(--muted); padding: 8px 12px; min-height: 36px; border-radius: 8px 8px 0 0; cursor: pointer; white-space: nowrap; border-bottom: 2px solid transparent; }
.plate-tabs button[aria-selected="true"] { color: var(--accent-deep); border-bottom-color: var(--accent); background: var(--accent-wash); }
.plate-img { all: unset; display: block; cursor: zoom-in; padding: 12px; background: #fff; }
.plate-img:focus-visible { outline: 2px solid var(--accent); outline-offset: -4px; }
.plate-img img { width: 100%; height: auto; border-radius: 6px; transition: transform .5s var(--ease-out); }
.plate-img:hover img { transform: scale(1.012); }
.plate figcaption { padding: 12px 16px 14px; border-top: 1px solid var(--line-soft); font-size: 14.5px; color: var(--ink-soft); line-height: 1.5; margin-top: auto; }
.plate figcaption b { font-family: var(--font-tex); font-weight: 500; font-size: 15px; color: var(--accent-deep); margin-right: 8px; }

.lightbox { border: 0; padding: 0; background: transparent; max-width: min(96vw, 1500px); max-height: 94vh; }
.lightbox::backdrop { background: rgba(42, 32, 24, .72); backdrop-filter: blur(4px); transition: opacity .15s ease-out; }
.lightbox[data-closing]::backdrop { opacity: 0; }
.lightbox img { max-height: 84vh; width: auto; max-width: 100%; margin: auto; background: #fff; border-radius: 12px; padding: 12px; }
.lightbox p { color: var(--paper); text-align: center; margin: 12px 0 0; font-size: 14.5px; }
.lightbox button { position: fixed; top: 16px; right: 16px; width: 44px; height: 44px; border-radius: 50%; border: 0; background: var(--paper); color: var(--ink); font-size: 22px; cursor: pointer; }

/* ---------- mapa de regímenes con marcador ---------- */
.regmap { position: relative; background: #fff; border-radius: var(--radius); border: 1px solid var(--line-soft); padding: 8px; }
.regmap img { width: 100%; height: auto; aspect-ratio: 889 / 404; border-radius: 8px; }
.regmap .pin { position: absolute; width: 18px; height: 18px; margin: -9px 0 0 -9px; border-radius: 50%; border: 3px solid #fff; background: var(--ink); box-shadow: 0 0 0 2px var(--ink), 0 4px 10px rgba(0,0,0,.35); transition: left .12s var(--ease-out), top .12s var(--ease-out), opacity .2s; }
.regmap .pin.off { opacity: .25; }
.regmap-in { position: relative; }

/* ---------- profesor guía ---------- */
.mentor { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(24px, 4vw, 64px); background: var(--ink); color: var(--paper); border-radius: 24px; padding: clamp(26px, 4.5vw, 64px); }
.mentor .kicker { color: #d9b99a; }
.mentor h3 { font-size: clamp(34px, 4.4vw, 60px); font-weight: 400; line-height: 1.02; margin: 0 0 18px; letter-spacing: -0.015em; }
.mentor h3 em { color: #e59a73; }
.mentor p { color: #e6dccd; margin: 0 0 18px; max-width: 52ch; }
.mono-mark { width: 84px; height: 84px; border-radius: 50%; border: 1px solid #6b5a4a; display: grid; place-items: center; font-family: var(--font-display); font-style: italic; font-size: 34px; color: #e59a73; margin-bottom: 26px; }
.mentor dl { margin: 0; display: grid; gap: 0; }
.mentor dl div { padding: 14px 0; border-top: 1px solid #4a3d31; display: grid; grid-template-columns: 120px 1fr; gap: 14px; }
.mentor dt { font-family: var(--font-tex); font-size: 15px; color: #bfa88f; padding-top: 4px; }
.mentor dd { margin: 0; color: #f3ebdf; font-size: 15.5px; line-height: 1.5; }
.mentor a { color: #f0b08c; }
.mentor .btn { background: #e59a73; color: var(--ink); display: inline-block; text-decoration: none; font-weight: 700; }
.mentor .btn:hover { background: #f0b08c; color: var(--ink); }
.thanks { font-family: var(--font-display); font-style: italic; font-size: clamp(19px, 1.8vw, 23px); line-height: 1.45; color: #f3ebdf !important; }

footer { margin-top: clamp(72px, 10vh, 120px); border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 14.5px; }
footer .wrap { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; }
footer p { margin: 0 0 8px; }

/* estado inicial de los reveals: solo si Motion cargó */
.js-motion [data-reveal] { opacity: 0; }
.pre [data-hero] { opacity: 0; }

@media (max-width: 960px) {
  .hero-grid, .cols, .lab-grid, .mentor, footer .wrap, .plots.two { grid-template-columns: 1fr; }
  .cols-3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .plates { grid-template-columns: 1fr; }
  .sec-head { grid-template-columns: 1fr; }
  .brand span { display: none; }
}
@media (max-width: 520px) {
  body { font-size: 16px; }
  .stats { grid-template-columns: 1fr; }
  .stat + .stat { padding-left: 0; border-left: 0; }
  .mentor dl div { grid-template-columns: 1fr; gap: 2px; }
  .recruit li { grid-template-columns: 26px 42px 1fr 56px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}

/* ---------- matemática (KaTeX) ---------- */
.katex { font-size: 1.08em; text-transform: none; letter-spacing: normal; }
.katex-display { overflow-x: auto; overflow-y: hidden; padding: 2px 0; }
h2 .katex, h3 .katex, .stat b .katex, .readout dd .katex { font-size: 1em; }
.plot h4 .katex, .kicker .katex, th .katex, .plate-tabs .katex, .chip .katex, .live .katex { font-size: 1em; }
.btn.ghost[aria-pressed="true"] { background: var(--accent-wash); border-color: var(--accent); color: var(--accent-deep); }
.timeline output .katex { font-size: 1.1em; }

.mentor-photo { width: 132px; height: 158px; object-fit: cover; border-radius: 16px; border: 1px solid #6b5a4a; margin-bottom: 26px; }

/* ---------- fondo en movimiento ---------- */
.bg { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; background: var(--bg); }
.bg-drift { position: absolute; inset: -20vh 0; }
.blob { position: absolute; width: 62vmax; height: 62vmax; border-radius: 50%; will-change: transform; }
.b1 { left: -18vmax; top: -6vmax; background: radial-gradient(circle, rgba(180, 80, 44, .17), rgba(180, 80, 44, 0) 62%); }
.b2 { right: -22vmax; top: 22vh; background: radial-gradient(circle, rgba(197, 138, 42, .17), rgba(197, 138, 42, 0) 62%); }
.b3 { left: 22vw; bottom: -30vmax; background: radial-gradient(circle, rgba(102, 117, 75, .15), rgba(102, 117, 75, 0) 62%); }
#bgNet { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ---------- cerebro 3D de la portada ---------- */
.hero .wrap { position: relative; }
.hero .wrap > :not(.brain) { position: relative; z-index: 1; }
.brain { position: absolute; right: -8px; top: -38px; width: clamp(220px, 27vw, 330px); aspect-ratio: 1; z-index: 0; }
.brain canvas { width: 100%; height: 100%; display: block; cursor: grab; touch-action: pan-y; }
@media (max-width: 859px) {
  .brain { position: static; width: min(290px, 76vw); margin: 26px auto 0; }
}

/* eslogan bajo el título de la portada */
.tagline { font-family: var(--font-display); font-style: italic; font-weight: 400; font-size: clamp(20px, 2.3vw, 31px); line-height: 1.25; color: var(--ink-soft); margin: clamp(14px, 2vw, 22px) 0 0; max-width: 24ch; }

/* ---------- grafo dinámico 3D ---------- */
.seg.three::before { width: calc((100% - 12px) / 3); }
.seg.three:has(button:nth-child(3)[aria-pressed="true"])::before { transform: translateX(calc(200% + 6px)); }
.g3-view { padding-bottom: 8px; }
.g3-stage { position: relative; width: 100%; aspect-ratio: 4 / 3; max-height: 620px; overflow: hidden; border-radius: 10px; }
.g3-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; touch-action: pan-y; }
.g3-labels { position: absolute; inset: 0; pointer-events: none; }
.g3-labels > span { position: absolute; left: 0; top: 0; font-family: var(--font-tex); font-size: 15px; color: var(--ink-soft); white-space: nowrap; background: color-mix(in srgb, var(--plate) 72%, transparent); padding: 0 5px; border-radius: 5px; }
.g3-zoom { position: absolute; right: 8px; top: 8px; display: flex; gap: 6px; }
.g3-zoom .btn { min-height: 36px; padding: 4px 12px; font-size: 15px; background: color-mix(in srgb, var(--plate) 88%, transparent); }
.g3-ramp { background: linear-gradient(90deg, #d8c8b0, #c58a2a, #b4502c, #5e1524) !important; width: 44px !important; height: 5px !important; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.g3-ramp.act { background: linear-gradient(90deg, #d3c7b3, #b4502c) !important; }
.legend [hidden] { display: none; }
.plots.two .g3-stage { aspect-ratio: 1 / 0.92; }

/* figuras 3D: son casi cuadradas, así que van lado a lado y con altura acotada */
[data-plates="grafo3d"] { grid-template-columns: repeat(2, minmax(0, 1fr)); }
[data-plates="grafo3d"] .plate-img img { max-height: 340px; width: auto; max-width: 100%; margin: 0 auto; }
@media (min-width: 1000px) { [data-plates="grafo3d"] { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 520px) { [data-plates="grafo3d"] { grid-template-columns: 1fr; } }
.plate-tabs { scrollbar-width: none; }
.plate-tabs::-webkit-scrollbar { display: none; }