/* Guías · Antonio Covarrubias · sistema de marca AC. (edición editorial)
   Crema #F6F1EF · Carbón #191316 · Coral #FF4229 · Gris #6E5F63 · Malva #B0A3A4 · Superficie #35292E
   Archivo (títulos 800–900, expandido, tracking negativo) · Geist Mono (etiquetas en mayúsculas, 3–5px) */
:root {
  --paper: #F6F1EF; --card: #FFFFFF; --ink: #191316; --muted: #6E5F63; --mauve: #B0A3A4; --line: #DDD2D0; --line-soft: #E9E0DE;
  --accent: #FF4229; --accent-soft: #FFE4DF; --accent-ink: #F6F1EF;
  --hero: #191316; --surface: #35292E; --on-hero: #F6F1EF;
  --radius: 22px; --radius-sm: 14px; --ease: cubic-bezier(.2,.7,.2,1);
  --f-display: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-body: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .55 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14100F; --card: #1E1619; --ink: #F6F1EF; --muted: #B0A3A4; --line: #3A2D33; --line-soft: #2B2126;
    --accent-soft: #3B221E; color-scheme: dark;
  }
}
:root[data-theme="dark"] { --paper: #14100F; --card: #1E1619; --ink: #F6F1EF; --muted: #B0A3A4; --line: #3A2D33; --line-soft: #2B2126; --accent-soft: #3B221E; color-scheme: dark; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 18px/1.72 var(--f-body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
::selection { background: var(--accent); color: #F6F1EF; }
a { color: var(--accent); text-underline-offset: 4px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 20px; }
.wide { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.progress { position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 60; pointer-events: none; }
.progress i { display: block; height: 100%; width: 100%; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; }

/* ---------- barra superior ---------- */
header.top { position: sticky; top: 0; z-index: 50; background: rgba(20,15,17,.86); backdrop-filter: blur(14px) saturate(1.3); -webkit-backdrop-filter: blur(14px) saturate(1.3); border-bottom: 1px solid rgba(246,241,239,.08); }
header.top .wide { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.logo { text-decoration: none; display: inline-flex; }
.mark { display: inline-flex; align-items: flex-end; gap: 3px; background: var(--accent); color: #F6F1EF; border-radius: 11px; padding: 9px 10px 8px 11px; font: 900 20px/1 var(--f-display); letter-spacing: -.05em; transition: transform .25s cubic-bezier(.3,1.6,.5,1); }
.mark i { width: 5px; height: 5px; background: #191316; border-radius: 1px; margin-bottom: 1px; }
.logo:hover .mark { transform: rotate(-5deg) scale(1.06); }
.tag, .eyebrow { font: 500 12px/1.4 var(--f-mono); letter-spacing: .26em; text-transform: uppercase; color: var(--accent); text-decoration: none; }
header.top .tag { color: var(--mauve); letter-spacing: .32em; }
header.top .tag:hover { color: var(--on-hero); }

/* ---------- hero ---------- */
.hero { position: relative; background: var(--hero); color: var(--on-hero); overflow: hidden; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -3; opacity: .09; background-image: var(--grain); background-size: 160px; mix-blend-mode: screen; }
.hero::after { content: ""; position: absolute; z-index: -2; width: 760px; height: 760px; right: -260px; top: -340px; border-radius: 50%; background: radial-gradient(circle, rgba(255,66,41,.34), rgba(255,66,41,0) 64%); animation: drift 18s ease-in-out infinite alternate; }
@keyframes drift { from { transform: translate3d(0,0,0) scale(1); } to { transform: translate3d(-110px,80px,0) scale(1.14); } }
canvas.net { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero .wide { padding-top: 40px; padding-bottom: 72px; }
.crumbs { font: 500 12px var(--f-mono); letter-spacing: .22em; text-transform: uppercase; color: var(--mauve); margin: 0 0 56px; }
.crumbs a { color: var(--mauve); text-decoration: none; }
.crumbs a:hover { color: var(--on-hero); }
.hero .eyebrow { display: inline-flex; align-items: center; gap: 12px; }
.hero .eyebrow::before { content: ""; width: 8px; height: 8px; background: var(--accent); border-radius: 2px; box-shadow: 0 0 0 5px rgba(255,66,41,.22); animation: beat 2.4s ease-in-out infinite; }
@keyframes beat { 50% { box-shadow: 0 0 0 9px rgba(255,66,41,0); } }
h1 { font: 800 clamp(38px, 7.2vw, 88px)/.98 var(--f-display); font-stretch: 116%; letter-spacing: -.045em; margin: 22px 0 0; max-width: 17ch; text-wrap: balance; }
.hero h1 { color: var(--on-hero); }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero-bottom { display: grid; gap: 32px; margin-top: 48px; align-items: end; }
@media (min-width: 900px) { .hero-bottom { grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 64px; } }
.byline { display: flex; align-items: center; gap: 14px; margin: 0 0 18px; }
.byline img { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; border: 2px solid var(--accent); flex: none; }
.meta { font: 500 12.5px/1.6 var(--f-mono); letter-spacing: .05em; color: var(--mauve); margin: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { font: 500 11.5px/1 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; color: var(--mauve); border: 1px solid rgba(246,241,239,.18); border-radius: 999px; padding: 10px 14px; }
.chip b { color: var(--on-hero); font-weight: 600; font-variant-numeric: tabular-nums; }

/* respuesta corta (lo que citan las IAs) */
.respuesta { position: relative; background: rgba(53,41,46,.72); border: 1px solid rgba(246,241,239,.14); border-radius: var(--radius); padding: 28px 30px 28px 34px; margin: 0; color: var(--on-hero); font-size: 20px; line-height: 1.6; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.respuesta::before { content: ""; position: absolute; left: 0; top: 22px; bottom: 22px; width: 4px; background: var(--accent); border-radius: 0 4px 4px 0; }
.respuesta strong:first-child { display: block; font: 500 11.5px/1.4 var(--f-mono); letter-spacing: .28em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }

/* mapa de la guía (riel con puntos) */
.map { margin-top: 64px; }
.map-label { font: 500 11.5px/1.4 var(--f-mono); letter-spacing: .28em; text-transform: uppercase; color: var(--mauve); margin: 0 0 30px; display: flex; align-items: center; gap: 14px; }
.map-label::after { content: ""; flex: 1; height: 1px; background: rgba(246,241,239,.14); }
.rail { list-style: none; margin: 0; padding: 30px 0 0; display: grid; grid-template-columns: repeat(var(--n, 4), minmax(0, 1fr)); position: relative; }
.rail::before { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 2px; background: rgba(246,241,239,.14); }
.rail::after { content: ""; position: absolute; left: 0; right: 0; top: 9px; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; animation: draw 1.5s .5s var(--ease) forwards; }
@keyframes draw { to { transform: scaleX(1); } }
.rail li { position: relative; margin: 0; padding: 0 18px 0 0; }
.rail li::before { content: ""; position: absolute; left: 0; top: -30px; width: 20px; height: 20px; border-radius: 50%; background: var(--hero); border: 2px solid var(--accent); box-shadow: 0 0 0 5px var(--hero); z-index: 1; }
.rail .n { display: block; font: 500 11.5px/1 var(--f-mono); letter-spacing: .22em; color: var(--accent); margin: 12px 0 10px; }
.rail strong { display: block; font: 800 17px/1.2 var(--f-display); letter-spacing: -.02em; color: var(--on-hero); }
.rail small { display: block; font: 400 14px/1.45 var(--f-body); color: var(--mauve); margin-top: 6px; }
.rail.big strong { font-size: 15px; }
.map.live .rail li::before { animation: pulse 6.4s ease-in-out infinite; }
.map.live .rail li:nth-child(2)::before { animation-delay: .8s; } .map.live .rail li:nth-child(3)::before { animation-delay: 1.6s; }
.map.live .rail li:nth-child(4)::before { animation-delay: 2.4s; } .map.live .rail li:nth-child(5)::before { animation-delay: 3.2s; }
.map.live .rail li:nth-child(6)::before { animation-delay: 4s; } .map.live .rail li:nth-child(7)::before { animation-delay: 4.8s; }
@keyframes pulse { 0%, 22%, 100% { background: var(--hero); } 6%, 14% { background: var(--accent); box-shadow: 0 0 0 5px var(--hero), 0 0 26px 4px rgba(255,66,41,.7); } }
@media (max-width: 760px) {
  .rail { grid-template-columns: 1fr; padding: 0 0 0 0; margin-left: 9px; border-left: 2px solid rgba(246,241,239,.14); gap: 0; }
  .rail::before { display: none; } .rail::after { left: -2px; right: auto; top: 0; bottom: 0; width: 2px; height: auto; transform: scaleY(0); transform-origin: 50% 0; animation-name: drawv; }
  .rail li { padding: 0 0 26px 30px; } .rail li:last-child { padding-bottom: 0; }
  .rail li::before { left: -11px; top: 0; }
}
@keyframes drawv { to { transform: scaleY(1); } }
@media (min-width: 761px) and (max-width: 980px) { .rail.big { grid-template-columns: repeat(4, minmax(0, 1fr)); row-gap: 38px; } .rail.big::before, .rail.big::after { display: none; } .rail.big li::before { top: -2px; position: relative; display: block; margin-bottom: 14px; } }

/* ---------- cuerpo ---------- */
.layout { display: grid; gap: 0; padding-block: 40px 20px; }
@media (min-width: 1100px) { .layout { grid-template-columns: 220px minmax(0, 720px); gap: 72px; justify-content: center; } }
.toc { display: none; }
@media (min-width: 1100px) { .toc { display: block; position: sticky; top: 92px; align-self: start; padding-top: 12px; } }
.toc p { font: 500 11px/1 var(--f-mono); letter-spacing: .28em; text-transform: uppercase; color: var(--muted); margin: 0 0 18px; }
.toc ol { list-style: none; margin: 0; padding: 0 0 0 18px; border-left: 1px solid var(--line); position: relative; display: grid; gap: 4px; }
.toc a { display: block; padding: 6px 0; font: 600 14px/1.35 var(--f-body); letter-spacing: -.005em; color: var(--muted); text-decoration: none; transition: color .2s, transform .2s; position: relative; }
.toc a::before { content: ""; position: absolute; left: -19px; top: 50%; width: 2px; height: 0; background: var(--accent); transform: translateY(-50%); transition: height .25s var(--ease); }
.toc a:hover { color: var(--ink); }
.toc a.on { color: var(--ink); transform: translateX(4px); }
.toc a.on::before { height: 22px; }
main.body { counter-reset: mod; min-width: 0; }

.mod { margin: 0 0 12px; padding-top: 52px; border-top: 1px solid var(--line); }
.mod:first-child, .intro + .mod { border-top: 0; padding-top: 12px; }
.mod > h2 { font: 800 clamp(28px, 4.4vw, 42px)/1.04 var(--f-display); font-stretch: 112%; letter-spacing: -.04em; margin: 0 0 22px; text-wrap: balance; }
.mod:not(.numbered):not(.months) > h2::before { counter-increment: mod; content: counter(mod, decimal-leading-zero); display: block; font: 500 12px/1 var(--f-mono); letter-spacing: .3em; color: var(--accent); margin-bottom: 16px; }
.mod p { margin: 0 0 18px; }
.mod p:last-child { margin-bottom: 0; }
.mod strong { font-weight: 800; letter-spacing: -.01em; }
.mod em { font-style: italic; }
.intro { font-size: 21px; line-height: 1.65; padding-bottom: 16px; }
.intro p { margin: 0 0 18px; }

/* pasos: numeral grande en contorno, filas con línea fina */
.step { position: relative; display: grid; grid-template-columns: 96px minmax(0, 1fr); column-gap: 24px; padding: 30px 0 28px; border-top: 1px solid var(--line-soft); transition: border-color .25s; }
.step:first-of-type { margin-top: 8px; }
.step::before { content: attr(data-n); grid-row: 1 / span 20; font: 900 76px/.9 var(--f-display); font-stretch: 112%; letter-spacing: -.06em; color: transparent; -webkit-text-stroke: 1.5px var(--accent); transition: color .3s, transform .35s cubic-bezier(.3,1.6,.5,1); }
.step > * { grid-column: 2; }
.step h3 { font: 800 clamp(21px, 2.6vw, 26px)/1.2 var(--f-display); letter-spacing: -.03em; margin: 4px 0 12px; }
.step:hover { border-top-color: var(--accent); }
.step:hover::before { color: var(--accent); transform: translateY(-3px); }
.step p:last-child, .step .tabla:last-child { margin-bottom: 0; }
@media (max-width: 560px) { .step { grid-template-columns: 1fr; } .step::before { grid-row: auto; font-size: 58px; margin-bottom: 8px; } .step > * { grid-column: 1; } }

/* listas ordenadas */
.mod ol { list-style: none; counter-reset: s; padding: 0; margin: 0 0 20px; }
.mod ol > li { counter-increment: s; position: relative; padding: 20px 0 20px 76px; border-top: 1px solid var(--line-soft); transition: border-color .25s, padding-left .25s var(--ease); }
.mod ol > li:last-child { border-bottom: 1px solid var(--line-soft); }
.mod ol > li::before { content: counter(s, decimal-leading-zero); position: absolute; left: 0; top: 19px; font: 500 15px/1 var(--f-mono); letter-spacing: .12em; color: var(--accent); }
.mod ol > li:hover { border-top-color: var(--accent); padding-left: 84px; }
.mod ol > li strong:first-child { display: block; font-size: 19px; letter-spacing: -.02em; }

/* listas con viñeta */
.mod ul { list-style: none; padding: 0; margin: 0 0 20px; }
.mod ul > li { position: relative; padding: 14px 0 14px 34px; border-top: 1px solid var(--line-soft); }
.mod ul > li:last-child { border-bottom: 1px solid var(--line-soft); }
.mod ul > li::before { content: ""; position: absolute; left: 4px; top: 25px; width: 9px; height: 9px; background: var(--accent); border-radius: 2px; }
.mod.warn ul > li::before { content: "✕"; background: none; color: var(--accent); font: 800 15px/1 var(--f-body); left: 2px; top: 20px; width: auto; height: auto; }

/* tablas */
.tabla { overflow-x: auto; margin: 0 0 20px; -webkit-overflow-scrolling: touch; }
table { width: 100%; min-width: 520px; border-collapse: collapse; font-size: 16px; line-height: 1.5; }
th { font: 500 11.5px/1.3 var(--f-mono); letter-spacing: .2em; text-transform: uppercase; color: var(--muted); text-align: left; padding: 0 16px 14px 0; border-bottom: 2px solid var(--ink); }
td { padding: 16px 16px 16px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
td:first-child { font-weight: 800; letter-spacing: -.015em; color: var(--ink); }
tr { transition: background .15s; }
tbody tr:hover td { background: var(--accent-soft); }
tbody tr:hover td:first-child { padding-left: 10px; }
td:first-child { transition: padding-left .2s var(--ease); }

/* fórmula */
.formula { position: relative; overflow: hidden; isolation: isolate; background: var(--hero); color: var(--on-hero); border-radius: var(--radius); padding: 32px 32px 34px; margin: 0 0 20px; }
.formula::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .08; background-image: var(--grain); background-size: 160px; mix-blend-mode: screen; }
.formula::after { content: ""; position: absolute; z-index: -1; width: 340px; height: 340px; right: -120px; top: -160px; border-radius: 50%; background: radial-gradient(circle, rgba(255,66,41,.36), transparent 65%); }
.formula .lab { display: block; font: 500 11.5px/1 var(--f-mono); letter-spacing: .28em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; }
.formula code { font: 500 18px/1.75 var(--f-mono); }

/* fallas numeradas */
.mod.numbered { display: grid; grid-template-columns: 96px minmax(0, 1fr); column-gap: 24px; padding-top: 30px; margin: 0; border-top: 1px solid var(--line-soft); }
.mod.numbered::before { content: attr(data-n); grid-row: 1 / span 10; font: 900 76px/.9 var(--f-display); font-stretch: 112%; letter-spacing: -.06em; color: transparent; -webkit-text-stroke: 1.5px var(--accent); transition: color .3s, transform .35s cubic-bezier(.3,1.6,.5,1); }
.mod.numbered > * { grid-column: 2; }
.mod.numbered > h2 { font-size: clamp(22px, 2.8vw, 28px); letter-spacing: -.035em; margin-bottom: 12px; }
.mod.numbered > h2::before { display: none; }
.mod.numbered { padding-bottom: 28px; transition: border-color .25s; }
.mod.numbered:hover { border-top-color: var(--accent); }
.mod.numbered:hover::before { color: var(--accent); transform: translateY(-3px); }
.mod.numbered + .mod:not(.numbered) { margin-top: 28px; }
@media (max-width: 560px) { .mod.numbered { grid-template-columns: 1fr; } .mod.numbered::before { grid-row: auto; font-size: 58px; margin-bottom: 8px; } .mod.numbered > * { grid-column: 1; } }

/* plan: tres meses */
.mod.months { border-top: 0; padding-top: 12px; }
.timeline { display: grid; gap: 28px; }
@media (min-width: 900px) { .timeline { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; } }
.month { position: relative; padding-top: 22px; border-top: 3px solid var(--ink); transition: border-color .25s; }
.month:hover { border-top-color: var(--accent); }
.month h2 { margin: 0 0 18px; font: 800 28px/1.05 var(--f-display); font-stretch: 112%; letter-spacing: -.04em; }
.month h2 .m { display: block; font: 500 11.5px/1 var(--f-mono); letter-spacing: .28em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.month ul > li { padding-left: 26px; border: 0; padding-top: 6px; padding-bottom: 6px; }
.month ul > li::before { left: 2px; top: 17px; }
.month ul > li:last-child { border: 0; }

/* historia personal */
.mod.story { position: relative; overflow: hidden; isolation: isolate; background: var(--hero); color: var(--on-hero); border: 0; border-radius: var(--radius); padding: 40px 36px; margin: 52px 0 12px; }
.mod.story::before { content: "“"; position: absolute; right: 24px; top: -20px; z-index: -1; font: 900 180px/1 var(--f-display); color: rgba(255,66,41,.3); }
.mod.story::after { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .08; background-image: var(--grain); background-size: 160px; mix-blend-mode: screen; }
.mod.story > h2::before { color: var(--accent); }
.mod.story p { color: #E9E1DD; }
.mod.story a { color: #FF6A54; }

/* FAQ */
.mod#faq details { border-top: 1px solid var(--line-soft); }
details { border-bottom: 1px solid var(--line-soft); }
.mod#faq details:last-of-type { border-bottom: 1px solid var(--line-soft); }
summary { list-style: none; cursor: pointer; padding: 22px 56px 22px 0; font: 700 20px/1.35 var(--f-display); letter-spacing: -.025em; position: relative; transition: color .2s; }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; position: absolute; right: 4px; top: 50%; width: 26px; height: 26px; margin-top: -13px; background: linear-gradient(var(--accent), var(--accent)) center / 100% 2px no-repeat, linear-gradient(var(--accent), var(--accent)) center / 2px 100% no-repeat; transition: transform .3s var(--ease); }
details[open] summary::after { transform: rotate(135deg); }
details[open] summary { color: var(--accent); }
summary:hover { color: var(--accent); }
details p { margin: 0; padding: 0 56px 26px 0; color: var(--muted); font-size: 18px; }

/* CTA */
.cta { position: relative; overflow: hidden; isolation: isolate; background: var(--hero); color: var(--on-hero); border-radius: 30px; padding: 56px 44px; margin: 72px 0 44px; }
.cta::before { content: ""; position: absolute; z-index: -1; inset: 0; opacity: .09; background-image: var(--grain); background-size: 160px; mix-blend-mode: screen; }
.cta::after { content: ""; position: absolute; z-index: -1; width: 520px; height: 520px; right: -160px; top: -240px; border-radius: 50%; background: radial-gradient(circle, rgba(255,66,41,.5), transparent 65%); }
.cta h2 { font: 800 clamp(30px, 5vw, 50px)/1.02 var(--f-display); font-stretch: 114%; letter-spacing: -.045em; margin: 0 0 16px; color: var(--on-hero); max-width: 17ch; text-wrap: balance; }
.cta p { color: #D9CFCB; margin: 0 0 32px; max-width: 50ch; font-size: 19px; }
.btn { display: inline-flex; align-items: center; gap: 12px; background: var(--accent); color: #F6F1EF; font: 800 18px/1 var(--f-display); letter-spacing: -.015em; padding: 20px 30px; border-radius: 999px; text-decoration: none; transition: transform .2s var(--ease), box-shadow .2s; box-shadow: 0 14px 34px -12px rgba(255,66,41,.75); will-change: transform; }
.btn::after { content: "→"; font-family: var(--f-body); transition: transform .2s; }
.btn:hover { box-shadow: 0 20px 44px -12px rgba(255,66,41,.9); }
.btn:hover::after { transform: translateX(5px); }
@media (max-width: 560px) { .cta { padding: 40px 24px; border-radius: 24px; } }

/* autor y siguiente */
.autor { display: flex; gap: 20px; align-items: center; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 28px 0; margin: 0 0 36px; }
.autor img { width: 76px; height: 76px; border-radius: 50%; object-fit: cover; border: 3px solid var(--accent); flex: none; transition: transform .35s cubic-bezier(.3,1.6,.5,1); }
.autor:hover img { transform: rotate(-6deg) scale(1.06); }
.autor .meta { color: var(--muted); font: 400 15.5px/1.55 var(--f-body); letter-spacing: 0; }
.autor strong { font-weight: 800; font-size: 20px; letter-spacing: -.025em; }
.next { display: block; position: relative; overflow: hidden; text-decoration: none; color: var(--ink); padding: 34px 70px 34px 0; margin: 0 0 28px; border-bottom: 1px solid var(--line); isolation: isolate; transition: padding-left .3s var(--ease), color .2s; }
.next::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--accent); transform: scaleX(0); transform-origin: 0 50%; transition: transform .4s var(--ease); }
.next .eyebrow { display: block; margin-bottom: 10px; transition: color .2s; }
.next b { font: 800 clamp(22px, 3.2vw, 32px)/1.12 var(--f-display); font-stretch: 108%; letter-spacing: -.035em; display: block; }
.next::after { content: "→"; position: absolute; right: 8px; top: 50%; margin-top: -18px; font-size: 34px; line-height: 1; color: var(--accent); transition: transform .3s var(--ease), color .2s; }
.next:hover { padding-left: 26px; color: #F6F1EF; }
.next:hover::before { transform: scaleX(1); }
.next:hover .eyebrow, .next:hover::after { color: #F6F1EF; }
.next:hover::after { transform: translateX(-14px); }
.back { font: 500 12px var(--f-mono); letter-spacing: .2em; text-transform: uppercase; }

/* footer */
footer.site { background: var(--hero); color: var(--mauve); margin-top: 40px; position: relative; overflow: hidden; isolation: isolate; }
footer.site::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .07; background-image: var(--grain); background-size: 160px; mix-blend-mode: screen; }
footer.site .wide { padding-top: 56px; padding-bottom: 40px; display: grid; gap: 40px; }
@media (min-width: 900px) { footer.site .wide { grid-template-columns: 1fr 2fr; } }
footer.site p { font: 400 15px/1.6 var(--f-body); margin: 16px 0 0; max-width: 34ch; }
footer.site nav { columns: 2; column-gap: 32px; }
@media (max-width: 560px) { footer.site nav { columns: 1; } }
footer.site nav a { display: block; break-inside: avoid; padding: 7px 0; color: #D9CFCB; text-decoration: none; font: 600 15px/1.35 var(--f-body); transition: color .15s, transform .2s; }
footer.site nav a:hover { color: var(--accent); transform: translateX(4px); }
footer.site .copy { grid-column: 1 / -1; border-top: 1px solid rgba(246,241,239,.12); padding-top: 24px; font: 500 11.5px/1.6 var(--f-mono); letter-spacing: .16em; text-transform: uppercase; }

/* ---------- índice ---------- */
.lead { font-size: clamp(18px, 2.2vw, 22px); color: #D9CFCB; max-width: 52ch; margin: 28px 0 0; }
.stats { display: flex; flex-wrap: wrap; gap: 0; margin-top: 48px; border-top: 1px solid rgba(246,241,239,.16); }
.stats div { padding: 22px 36px 0 0; margin-right: 36px; }
.stats div + div { padding-left: 0; }
.stats b { display: block; font: 800 44px/1 var(--f-display); font-stretch: 112%; letter-spacing: -.05em; color: var(--on-hero); font-variant-numeric: tabular-nums; }
.stats b i { font-style: normal; }
.stats div > span { display: block; margin-top: 8px; font: 500 11px/1.4 var(--f-mono); letter-spacing: .24em; text-transform: uppercase; color: var(--mauve); }
.idx { padding-block: 64px 24px; }
.feat { display: block; position: relative; overflow: hidden; isolation: isolate; text-decoration: none; color: var(--on-hero); background: var(--hero); border-radius: 30px; padding: 48px 44px 44px; margin-bottom: 56px; background-image: radial-gradient(520px circle at var(--x, 80%) var(--y, 0%), rgba(255,66,41,.34), transparent 65%); transition: transform .3s var(--ease); }
.feat::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .08; background-image: var(--grain); background-size: 160px; mix-blend-mode: screen; }
.feat:hover { transform: translateY(-4px); }
.feat .badge { display: inline-block; background: var(--accent); color: #F6F1EF; font: 500 11px/1 var(--f-mono); letter-spacing: .24em; text-transform: uppercase; padding: 9px 12px; border-radius: 8px; margin-bottom: 26px; }
.feat .num { position: absolute; right: 36px; top: 12px; font: 900 150px/1 var(--f-display); font-stretch: 112%; letter-spacing: -.07em; color: transparent; -webkit-text-stroke: 1.5px rgba(246,241,239,.16); z-index: -1; }
.feat .eyebrow { display: block; margin-bottom: 14px; }
.feat h2 { font: 800 clamp(30px, 5vw, 56px)/1 var(--f-display); font-stretch: 114%; letter-spacing: -.045em; margin: 0 0 18px; max-width: 18ch; text-wrap: balance; }
.feat p { margin: 0 0 28px; max-width: 52ch; color: #D9CFCB; font-size: 19px; }
.feat .go, .row .go { font: 500 12px var(--f-mono); letter-spacing: .24em; text-transform: uppercase; color: var(--accent); }
.rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.rows li { margin: 0; border-bottom: 1px solid var(--line); }
.row { position: relative; display: grid; grid-template-columns: 64px minmax(0, 1fr) 40px; gap: 8px 24px; align-items: center; padding: 30px 8px; text-decoration: none; color: var(--ink); isolation: isolate; overflow: hidden; transition: padding .3s var(--ease), color .2s; }
.row::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--ink); transform: scaleY(0); transform-origin: 50% 100%; transition: transform .35s var(--ease); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .row::before { background: var(--accent); } }
.row .num { font: 500 14px/1 var(--f-mono); letter-spacing: .14em; color: var(--accent); align-self: start; padding-top: 10px; transition: color .2s; }
.row h2 { font: 800 clamp(22px, 3.1vw, 34px)/1.1 var(--f-display); font-stretch: 108%; letter-spacing: -.04em; margin: 0; text-wrap: balance; }
.row .eyebrow { display: block; margin-bottom: 10px; transition: color .2s; }
.row p { margin: 10px 0 0; max-width: 58ch; color: var(--muted); font-size: 16.5px; line-height: 1.55; transition: color .2s; }
.row .arr { justify-self: end; font-size: 30px; color: var(--accent); transition: transform .3s var(--ease), color .2s; }
.row:hover { padding-left: 24px; padding-right: 24px; color: #F6F1EF; }
.row:hover::before { transform: scaleY(1); }
.row:hover p { color: #D9CFCB; } .row:hover .num, .row:hover .eyebrow, .row:hover .arr { color: var(--accent); }
.row:hover .arr { transform: translateX(6px); }
@media (max-width: 560px) { .row { grid-template-columns: 40px minmax(0, 1fr); } .row .arr { display: none; } .feat { padding: 36px 24px; } .feat .num { font-size: 100px; right: 18px; } .stats div { padding-right: 22px; margin-right: 22px; } .stats b { font-size: 34px; } }
.idx .cta { margin-top: 72px; }

/* ---------- interacción ---------- */
.spot { position: absolute; inset: 0; z-index: -1; pointer-events: none; opacity: 0; transition: opacity .4s; background: radial-gradient(520px circle at var(--mx, 70%) var(--my, 10%), rgba(255,66,41,.18), transparent 62%); }
.hero:hover .spot { opacity: 1; }
.js .rv { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease) var(--d, 0s), transform .7s var(--ease) var(--d, 0s); }
.js .rv.in { opacity: 1; transform: none; }
@media (hover: none) { .row:hover, .feat:hover { transform: none; } .row:hover { padding-left: 8px; padding-right: 8px; color: var(--ink); } .row:hover::before { transform: scaleY(0); } .row:hover p { color: var(--muted); } }
@media (prefers-reduced-motion: reduce) { .hero::after { animation: none; } .spot, canvas.net { display: none; } .rail::after { transform: none; } }

/* ---- inmersion: mouse y dedo ---- */
html { -webkit-tap-highlight-color: transparent; }
.fx-glow, .fx-ring { position: fixed; left: 0; top: 0; pointer-events: none; will-change: transform; }
.fx-glow { z-index: 40; width: 640px; height: 640px; margin: -320px 0 0 -320px; border-radius: 50%; background: radial-gradient(circle, rgba(255,66,41,.15), rgba(255,66,41,.05) 38%, rgba(255,66,41,0) 64%); opacity: 0; transition: opacity .6s; }
.fx-glow.on { opacity: 1; }
.fx-ring { z-index: 9999; width: 38px; height: 38px; margin: -19px 0 0 -19px; opacity: 0; transition: opacity .3s; }
.fx-ring.on { opacity: 1; }
.fx-ring i { display: block; width: 100%; height: 100%; border: 1.5px solid var(--accent); border-radius: 50%; transition: transform .28s var(--ease), background .28s; }
.fx-ring i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 5px; height: 5px; margin: -2.5px; border-radius: 50%; background: var(--accent); }
.fx-ring.big i { transform: scale(1.8); background: rgba(255,66,41,.12); }
.fx-rip { position: fixed; z-index: 9998; width: 14px; height: 14px; margin: -7px 0 0 -7px; border: 2px solid var(--accent); border-radius: 50%; pointer-events: none; animation: rip .8s cubic-bezier(.2,.7,.2,1) forwards; }
@keyframes rip { from { transform: scale(1); opacity: .9; } to { transform: scale(15); opacity: 0; } }
.hero h1 { will-change: transform; transform: translate3d(calc(var(--px, 0) * -14px), calc(var(--py, 0) * -9px + var(--sy, 0) * .14px), 0); }
.hero-bottom { will-change: transform; transform: translate3d(calc(var(--px, 0) * -7px), calc(var(--py, 0) * -4px + var(--sy, 0) * .08px), 0); }
.hero .rail { transform: translate3d(calc(var(--px, 0) * -3px), calc(var(--py, 0) * -2px), 0); }
@media (prefers-reduced-motion: reduce) { .fx-glow, .fx-ring, .fx-rip { display: none; } .hero h1, .hero-bottom, .hero .rail { transform: none; } }
.fx-glow.on.soft { opacity: .4; }
.fx-rip.soft { width: 10px; height: 10px; margin: -5px 0 0 -5px; border-width: 1px; animation-name: rip2; animation-duration: .6s; }
@keyframes rip2 { from { transform: scale(1); opacity: .5; } to { transform: scale(6); opacity: 0; } }
.fx-glow.on.soft.faint { opacity: .22; }
.fx-rip.soft { width: 12px; height: 12px; margin: -6px 0 0 -6px; border-width: 1.5px; animation-duration: .7s; }
.fx-rip.soft::after { content: ""; position: absolute; inset: -1.5px; border: 1px solid var(--accent); border-radius: 50%; animation: rip3 .9s .12s cubic-bezier(.2,.7,.2,1) both; }
@keyframes rip3 { from { transform: scale(1); opacity: .6; } to { transform: scale(9); opacity: 0; } }
.fx-glow.on.soft.faint { opacity: .3; }
.fx-rip.soft { width: 12px; height: 12px; margin: -6px 0 0 -6px; border-width: 1.5px; animation-duration: .7s; }
.fx-rip.soft::after { content: ""; position: absolute; inset: -1.5px; border: 1px solid var(--accent); border-radius: 50%; animation: rip3 .9s .12s cubic-bezier(.2,.7,.2,1) both; }
@keyframes rip3 { from { transform: scale(1); opacity: .6; } to { transform: scale(9); opacity: 0; } }
.share { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; margin: 8px 0 28px; font: 500 12px var(--f-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.share a { color: var(--ink); text-decoration: none; border-bottom: 1px solid var(--accent); padding-bottom: 2px; transition: color .2s; }
.share a:hover { color: var(--accent); }

.cta .cta-alt { margin: 18px 0 0; font: 500 13px/1.5 var(--f-mono); letter-spacing: .08em; }
.cta .cta-alt a { color: inherit; opacity: .85; text-decoration: none; border-bottom: 1px solid var(--accent); padding-bottom: 2px; }
.cta .cta-alt a:hover { opacity: 1; color: var(--accent); }