:root {
  color-scheme: dark;
  --bg: #0d0e11;
  --panel: #121317;
  --ink: #f3f3f0;
  --muted: #a4a6ad;
  --faint: #6f7178;
  --line: #26282e;
  --accent: #ff6a2b;
  --bar: 48px;
  --rail: 236px;
  --wide: 'Archivo', 'Arial Black', sans-serif;
  --body: 'Instrument Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--bar) + 8px); }
body {
  margin: 0;
  overflow-x: clip;
  background: var(--bg);
  color: var(--ink);
  font: 400 1rem/1.55 var(--body);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, p, ul, ol { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; height: auto; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.accent { color: var(--accent); }

.skip {
  position: fixed;
  z-index: 60;
  left: 12px;
  top: -60px;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--bg);
}
.skip:focus { top: 8px; }

/* Barra superior */
.bar {
  position: fixed;
  z-index: 50;
  inset: 0 0 auto;
  display: flex;
  align-items: stretch;
  height: var(--bar);
  border-bottom: 1px solid var(--line);
  background: rgb(13 14 17 / .88);
  backdrop-filter: blur(10px);
  font: 500 .75rem var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.bar-logo {
  display: grid;
  place-items: center;
  width: 56px;
  border-right: 1px solid var(--line);
}
.logo { width: 24px; height: 24px; }
.bar-nav { display: flex; align-items: center; gap: 4px; padding: 0 12px; }
.bar-nav a { padding: 4px 9px; color: var(--muted); }
.bar-nav a:hover { color: var(--ink); }
.bar-nav a.on { background: var(--ink); color: var(--bg); }
.bar-cta {
  display: flex;
  align-items: center;
  margin-left: auto;
  padding: 0 22px;
  background: var(--ink);
  color: var(--bg);
}
.bar-cta:hover { background: var(--accent); }
.bar-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(var(--p, 0));
  transform-origin: left;
}

/* Índice lateral */
.rail { display: none; }
@media (min-width: 1280px) {
  .rail {
    position: fixed;
    z-index: 40;
    inset: var(--bar) 0 0 auto;
    display: block;
    width: var(--rail);
    border-left: 1px solid var(--line);
  }
  .bar-progress { display: none; }
  .page { padding-right: var(--rail); }
}
.rail-list {
  position: absolute;
  inset: 14px 62px 22px 12px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  text-align: right;
  font: 600 .8125rem/1.25 var(--wide);
  font-stretch: 125%;
  letter-spacing: .03em;
  text-transform: uppercase;
}
.rail-list a { color: var(--faint); transition: color .2s; }
.rail-list a:hover { color: var(--ink); }
.rail-list li { transition: font-size .25s; }
.rail-list li.on { margin: 6px 0; font-size: 1.25rem; font-weight: 800; }
.rail-list li.on a { color: var(--ink); }
.rail-gap { flex: 1; }
.ruler { position: absolute; inset: 14px 0 22px auto; width: 54px; }
.ruler i {
  position: absolute;
  right: 0;
  width: 10px;
  height: 1px;
  background: var(--line);
}
.ruler i.major { width: 20px; background: var(--faint); }
.ruler b {
  position: absolute;
  right: 25px;
  top: -7px;
  color: var(--faint);
  font: 400 .625rem var(--mono);
}
.ruler-mark {
  position: absolute;
  right: 0;
  top: calc(var(--p, 0) * 100%);
  width: 54px;
  height: 1px;
  background: var(--accent);
}
.ruler-mark em {
  position: absolute;
  right: 2px;
  top: 3px;
  color: var(--accent);
  font: 500 .625rem var(--mono);
}

/* Marco */
.frame {
  max-width: 1120px;
  margin: 0 auto;
  border-inline: 1px solid var(--line);
}
.sec { position: relative; }
.sec::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100vw;
  right: -100vw;
  height: 1px;
  background: var(--line);
}
.sec::after {
  --x: var(--faint);
  content: '';
  position: absolute;
  z-index: 2;
  top: -5px;
  left: -5px;
  width: calc(100% + 11px);
  height: 11px;
  background:
    linear-gradient(var(--x), var(--x)) 5px 0 / 1px 11px no-repeat,
    linear-gradient(var(--x), var(--x)) 0 5px / 11px 1px no-repeat,
    linear-gradient(var(--x), var(--x)) calc(100% - 5px) 0 / 1px 11px no-repeat,
    linear-gradient(var(--x), var(--x)) 100% 5px / 11px 1px no-repeat;
}
.sec-head {
  position: sticky;
  z-index: 20;
  top: var(--bar);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 28px;
  border-bottom: 1px solid var(--line);
  background: rgb(13 14 17 / .9);
  backdrop-filter: blur(10px);
  color: var(--muted);
  font: 400 .75rem var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.sec-head span:last-child { color: var(--faint); text-align: right; }
.sec-title {
  padding: clamp(44px, 8vh, 80px) 28px;
  font: 800 clamp(2rem, 4.6vw, 3.5rem)/1.05 var(--wide);
  font-stretch: 125%;
  letter-spacing: -.02em;
}

/* Portada */
.hero { padding-top: var(--bar); }
.hero::before, .hero::after { display: none; }
.hero .sec-head { border-top: 0; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  align-items: center;
  gap: 40px;
  min-height: min(calc(100vh - var(--bar) - 42px), 860px);
  padding: 48px 28px;
}
h1 {
  font: 800 clamp(2.5rem, 5.6vw, 4.5rem)/1 var(--wide);
  font-stretch: 125%;
  letter-spacing: -.03em;
}
h1 span { display: block; color: var(--accent); }
.hero-sub {
  margin-top: 22px;
  font: 600 clamp(1.125rem, 2vw, 1.5rem)/1.25 var(--wide);
  font-stretch: 125%;
}
.hero-text { max-width: 33em; margin-top: 14px; color: var(--muted); font-size: 1.0625rem; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.btn {
  display: inline-block;
  padding: 13px 22px;
  border: 1px solid #54565d;
  font: 500 .75rem var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: background-color .15s, color .15s, border-color .15s;
}
.btn:hover { border-color: var(--ink); background: var(--ink); color: var(--bg); }
.btn-solid { border-color: var(--ink); background: var(--ink); color: var(--bg); }
.btn-solid:hover { border-color: var(--accent); background: var(--accent); }

.wall { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px 12px; }
.wall a { display: block; text-align: center; }
.wall .ico { width: min(100%, 68px); height: auto; aspect-ratio: 1; margin: 0 auto; transition: transform .2s, box-shadow .2s; }
.wall .ico-mono { display: grid; }
.wall span:not(.ico) {
  display: block;
  margin-top: 7px;
  overflow: hidden;
  color: var(--muted);
  font-size: .75rem;
  font-weight: 600;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.wall a:hover .ico { transform: translateY(-3px); box-shadow: 0 8px 26px -8px var(--c); }
.wall a:hover span:not(.ico) { color: var(--ink); }

/* Celdas */
.cells {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  background: repeating-linear-gradient(135deg, transparent 0 9px, var(--line) 9px 10px);
}
.cells-two { grid-template-columns: repeat(2, 1fr); }
.cell, .rule {
  min-width: 0;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.cell { display: flex; flex-direction: column; scroll-margin-top: 100px; transition: background-color .2s; }
.cell:hover { background: var(--panel); }
.cell-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 16px;
  font: 400 .6875rem var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.badge { padding: 2px 6px; background: var(--c); color: #0d0e11; font-weight: 500; }
.kind { overflow: hidden; color: var(--muted); text-overflow: ellipsis; white-space: nowrap; }
.media { aspect-ratio: 16 / 10; overflow: hidden; background: #08090b; }
.media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.cell:hover .media img { transform: scale(1.035); }
.gen {
  position: relative;
  display: grid;
  place-items: center;
  height: 100%;
  background:
    radial-gradient(90% 120% at 80% 110%, color-mix(in srgb, var(--c) 42%, transparent), transparent 70%),
    radial-gradient(color-mix(in srgb, var(--c) 40%, transparent) 1px, transparent 1.5px) 0 0 / 16px 16px;
}
.gen span {
  color: transparent;
  font: 800 9rem/1 var(--wide);
  font-stretch: 125%;
  -webkit-text-stroke: 1.5px var(--c);
}
.body { position: relative; display: flex; flex: 1; flex-direction: column; padding: 0 16px 16px; }
.ico {
  display: block;
  flex: none;
  width: 56px;
  height: 56px;
  border-radius: 23%;
  object-fit: cover;
}
.ico-mono {
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--c), color-mix(in srgb, var(--c) 55%, #0d0e11));
  color: #0d0e11;
  font: 800 1.0625rem/1 var(--wide);
  font-stretch: 100%;
  letter-spacing: -.02em;
}
.body > .ico { margin-top: -28px; box-shadow: 0 0 0 3px var(--bg); }
.cell:hover .body > .ico { box-shadow: 0 0 0 3px var(--panel); }
.body h3 {
  margin-top: 12px;
  font: 800 1.375rem/1.15 var(--wide);
  font-stretch: 125%;
  letter-spacing: -.02em;
}
.tone { color: var(--c); }
.body p { margin-top: 8px; color: var(--muted); font-size: .9375rem; }
.tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 14px; padding-bottom: 14px; }
.tags li {
  padding: 2px 6px;
  border: 1px solid var(--line);
  color: var(--muted);
  font: 400 .6875rem var(--mono);
}
.more {
  margin-top: auto;
  color: var(--c);
  font: 500 .6875rem var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}
a.more:hover { text-decoration: underline; text-underline-offset: 3px; }
.more-off { color: var(--faint); }

/* Principios */
.rule { padding: 22px 24px 28px; }
.rule-no { color: var(--accent); font: 400 .75rem var(--mono); }
.rule h3 {
  margin-top: 26px;
  font: 800 1.125rem/1.2 var(--wide);
  font-stretch: 125%;
  letter-spacing: -.01em;
}
.rule p { margin-top: 8px; color: var(--muted); font-size: .9375rem; }

/* Cierre */
.closing-body {
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: clamp(72px, 14vh, 130px) 28px;
  text-align: center;
}
.closing-body h2 {
  font: 800 clamp(2.25rem, 6vw, 4rem)/1.05 var(--wide);
  font-stretch: 125%;
  letter-spacing: -.025em;
}
.closing-body p { max-width: 32em; color: var(--muted); }
.foot {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 24px;
  padding: 16px 28px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font: 400 .6875rem var(--mono);
  letter-spacing: .06em;
}

/* Aparición al hacer scroll */
.js .rv {
  opacity: 0;
  filter: blur(10px);
  transform: translateY(14px);
  transition: opacity .6s ease, filter .6s ease, transform .6s ease;
}
.js .rv.in { opacity: 1; filter: none; transform: none; }

/* 404 */
.notfound {
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 22px;
  min-height: 100vh;
  padding: 24px;
  text-align: center;
}
.notfound p { color: var(--accent); font: 400 .8125rem var(--mono); letter-spacing: .1em; }

@media (max-width: 1040px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); min-height: 0; }
  .wall { max-width: 460px; }
  .cells { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .bar-nav { display: none; }
  .wall span:not(.ico) { white-space: normal; }
  .frame { border-inline: 0; }
  .sec::after { display: none; }
  .sec-head { padding: 10px 16px; font-size: .6875rem; }
  .sec-head span:last-child { display: none; }
  .hero-grid { padding: 36px 16px; }
  .sec-title { padding: 40px 16px; }
  .cells, .cells-two { grid-template-columns: minmax(0, 1fr); }
  .closing-body, .foot { padding-inline: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .rv { opacity: 1; filter: none; transform: none; transition: none; }
  .media img, .wall .ico, .rail-list li { transition: none; }
}