:root {
  --ground: #0f0e0c;
  --panel: #181613;
  --rule: #2b2722;
  --ink: #ede7db;
  --dim: #a89f8f;
  --gold: #d7b579;
  --gold-hot: #f0d39a;
  /* cada plugin trae su material (como en su interfaz) */
  --temple: #d7b579;
  --temple-plate: #1e1a14;
  --yunque: #ea7a3e;
  --yunque-plate: #14171b;
  --steel: #93a7b8;
  --accent: var(--gold);
  --plate: var(--panel);

  --display: "Big Shoulders Display", "Arial Narrow", sans-serif;
  --body: "Archivo", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --wrap: min(1200px, 100% - 32px);
  --ease: cubic-bezier(.16, 1, .3, 1);
  color-scheme: dark;
}
.p-temple { --accent: var(--temple); --plate: var(--temple-plate); }
.p-yunque { --accent: var(--yunque); --plate: var(--yunque-plate); }

* { box-sizing: border-box; }
html { background: var(--ground); scrollbar-color: var(--rule) var(--ground); scroll-padding-top: 24px; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 400 17px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
::selection { background: var(--accent); color: var(--ground); }
a { color: inherit; text-underline-offset: .2em; text-decoration-thickness: 1px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
img, svg { display: block; max-width: 100%; }

/* un idioma visible a la vez */
html[data-lang="en"] [lang="es"], html[data-lang="es"] [lang="en"] { display: none !important; }

.wrap { width: var(--wrap); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--gold); color: var(--ground); padding: 8px 12px; z-index: 10; }

/* cabecera */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 22px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 40px; height: 40px; }
.brand b { font: 800 22px/1 var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--gold); }
.top nav { display: flex; align-items: center; gap: 22px; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--dim); }
.top nav a:hover, .top nav a[aria-current] { color: var(--ink); }
.lang { display: flex; border: 1px solid var(--rule); border-radius: 2px; }
.lang button { font: 700 13px/1 var(--display); letter-spacing: .12em; background: none; border: 0; color: var(--dim); padding: 8px 10px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--gold); color: var(--ground); }

/* botones */
.btn { display: inline-flex; align-items: center; gap: 10px; min-height: 46px; padding: 0 22px; border-radius: 2px;
       font: 700 17px/1 var(--display); letter-spacing: .1em; text-transform: uppercase; text-decoration: none; cursor: pointer;
       transition: background-color .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease); }
.btn-buy { background: var(--accent); color: var(--ground); border: 1px solid var(--accent); }
.btn-buy:hover { background: var(--ink); border-color: var(--ink); }
.btn-line { border: 1px solid var(--rule); color: var(--ink); }
.btn-line:hover { border-color: var(--accent); color: var(--accent); }
.btn.is-soon { background: transparent; color: var(--dim); border: 1px dashed var(--rule); cursor: default; }
.price { font: 500 15px/1 var(--mono); color: var(--accent); }

/* ===== portada: la cadena de señal ===== */
.thesis { padding-block: clamp(28px, 6vh, 72px) clamp(32px, 5vh, 56px); display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 20px 56px; align-items: end; }
.thesis h1 { margin: 0; font: 800 clamp(44px, 6vw, 84px)/.92 var(--display); letter-spacing: -.01em; text-transform: uppercase; text-wrap: balance; }
.thesis h1 em { font-style: normal; color: var(--gold); }
.thesis p { margin: 0 0 6px; max-width: 46ch; color: var(--dim); font-size: 18px; }

.chain { position: relative; display: grid; grid-template-columns: auto repeat(var(--links), minmax(0, 1fr)) auto; align-items: center; gap: 0 clamp(20px, 3vw, 44px); padding-bottom: 72px; }
/* el cable dorado y el pulso que lo recorre */
.chain::before { content: ""; position: absolute; left: 0; right: 0; top: calc(50% - 37px); height: 3px; background: var(--gold); opacity: .55; }
.chain::after { content: ""; position: absolute; left: 0; top: calc(50% - 37px); height: 4px; width: 22%; border-radius: 2px;
  background: linear-gradient(90deg, transparent, var(--gold-hot) 70%, transparent); filter: blur(1px); opacity: .9;
  animation: signal 3.6s linear infinite; }
@keyframes signal { from { transform: translateX(-100%); } to { transform: translateX(560%); } }
.jack { position: relative; z-index: 1; display: grid; justify-items: center; gap: 8px; font: 700 13px/1 var(--display); color: var(--dim); letter-spacing: .12em; align-self: center; padding-top: 20px; }
.jack i { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--gold); background: var(--ground); box-shadow: inset 0 0 0 5px var(--ground), inset 0 0 0 9px var(--rule); }

.unit { position: relative; z-index: 1; display: grid; grid-template-rows: auto 1fr auto; background: var(--plate); border-radius: 3px; padding: 22px 24px 24px;
  box-shadow: 0 1px 0 rgba(255,255,255,.04) inset, 0 18px 40px -20px rgba(0,0,0,.8); transition: transform .45s var(--ease), box-shadow .45s var(--ease); }
.unit::before { content: ""; position: absolute; inset: 0 0 auto; height: 3px; background: var(--accent); border-radius: 3px 3px 0 0; transform: scaleX(.18); transform-origin: left; transition: transform .6s var(--ease); }
.unit:hover, .unit:focus-within { transform: translateY(-4px); box-shadow: 0 1px 0 rgba(255,255,255,.05) inset, 0 28px 50px -22px rgba(0,0,0,.9), 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent); }
.unit:hover::before, .unit:focus-within::before { transform: scaleX(1); }
/* el tramo de cable que entra en cada aparato se enciende con su color */
.unit::after { content: ""; position: absolute; top: calc(50% - 1px); right: 100%; width: clamp(20px, 3vw, 44px); height: 3px; background: var(--gold); opacity: .55; transition: background-color .45s var(--ease), opacity .45s var(--ease); }
.unit:hover::after, .unit:focus-within::after { background: var(--accent); opacity: 1; }
.unit header { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.unit h2 { margin: 0; font: 800 clamp(40px, 4.4vw, 58px)/.9 var(--display); text-transform: uppercase; letter-spacing: .02em; color: var(--accent); }
.unit h2 a { text-decoration: none; }
.unit .kind { font: 700 15px/1.2 var(--display); color: var(--dim); text-transform: uppercase; letter-spacing: .1em; text-align: right; }
.unit .thumb { display: block; margin: 18px 0 16px; border-radius: 2px; overflow: hidden; box-shadow: 0 10px 24px -14px #000; }
.unit .thumb img { width: 100%; height: clamp(150px, 15vw, 210px); object-fit: cover; object-position: top left; transition: transform .6s var(--ease); }
.unit:hover .thumb img { transform: scale(1.03); }
.unit p { margin: 0 0 20px; color: var(--dim); font-size: 16px; }
.unit footer { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; }
.unit footer .price { margin-right: auto; }
.unit .btn { min-height: 42px; padding: 0 16px; font-size: 16px; }

.howto { border-top: 1px solid var(--rule); padding-block: 64px 80px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px 64px; }
.howto h2, .section-title { margin: 0; font: 800 clamp(30px, 3.4vw, 44px)/1 var(--display); text-transform: uppercase; letter-spacing: .02em; text-wrap: balance; }
.steps { margin: 0; padding: 0; list-style: none; display: grid; gap: 22px; counter-reset: s; }
.steps li { display: grid; grid-template-columns: 40px 1fr; gap: 16px; counter-increment: s; }
.steps li::before { content: counter(s); font: 800 30px/1 var(--display); color: var(--gold); }
.steps b { display: block; font-weight: 600; }
.steps span { color: var(--dim); }

footer.site { border-top: 1px solid var(--rule); padding-block: 28px 40px; color: var(--dim); font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
footer.site a { color: var(--dim); }

/* ===== página de plugin ===== */
.hero { background: var(--plate); padding-block: clamp(40px, 8vh, 88px) 56px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 40px 56px; align-items: center; }
.hero h1 { margin: 0; font: 800 clamp(72px, 12vw, 160px)/.82 var(--display); text-transform: uppercase; color: var(--accent); letter-spacing: -.005em; }
.hero .lede { margin: 24px 0 28px; font-size: clamp(19px, 1.8vw, 22px); max-width: 34ch; text-wrap: pretty; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero .note { margin: 18px 0 0; color: var(--dim); font-size: 15px; }
.hero .scope { color: var(--accent); }
.shot { grid-column: 1 / -1; margin: 0; padding-block: 48px 0; }
.shot img { width: auto; max-width: 100%; height: auto; margin-inline: auto; border-radius: 3px; box-shadow: 0 30px 60px -30px #000; }

.does { padding-block: 72px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px 64px; }
.does dl { margin: 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px 40px; }
.does dt { font: 700 20px/1.2 var(--display); text-transform: uppercase; letter-spacing: .06em; color: var(--accent); margin-bottom: 6px; }
.does dd { margin: 0; color: var(--dim); }

/* manual: índice fijo a la izquierda, texto a 68 caracteres */
.manual { border-top: 1px solid var(--rule); padding-block: 72px 96px; display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 32px 64px; }
.toc { position: sticky; top: 24px; align-self: start; font-size: 15px; }
.toc b { display: block; font: 800 26px/1 var(--display); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 18px; }
.toc ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; border-left: 1px solid var(--rule); }
.toc a { display: block; padding-left: 14px; margin-left: -1px; border-left: 1px solid transparent; color: var(--dim); text-decoration: none; }
.toc a:hover { color: var(--ink); border-left-color: var(--accent); }
.toc .print { margin-top: 22px; font: 700 13px/1 var(--display); letter-spacing: .12em; background: none; border: 1px solid var(--rule); color: var(--dim); padding: 9px 12px; cursor: pointer; border-radius: 2px; }
.toc .print:hover { color: var(--ink); border-color: var(--accent); }
.doc { min-width: 0; }
.doc p, .doc ol, .doc ul, .doc dl, .doc h2, .doc h3 { max-width: 68ch; }
.doc figure { margin: 18px 0 26px; }
.doc figure a { display: block; }
.doc figure img { width: 100%; height: auto; border-radius: 3px; box-shadow: 0 14px 30px -18px #000; }
.doc figcaption { margin-top: 8px; font-size: 14px; color: var(--dim); }
.doc section + section { margin-top: 56px; }
.doc h2 { margin: 0 0 14px; font: 800 34px/1 var(--display); text-transform: uppercase; letter-spacing: .02em; }
.doc h3 { margin: 30px 0 8px; font: 700 21px/1.2 var(--display); text-transform: uppercase; letter-spacing: .06em; color: var(--accent); }
.doc p, .doc li { color: #d6cfc2; }
.doc ol, .doc ul { padding-left: 1.2em; }
.doc li + li { margin-top: 6px; }
.doc code, .doc kbd { font: 400 .86em/1 var(--mono); background: var(--panel); padding: .18em .4em; border-radius: 2px; color: var(--ink); }
.doc dl.ctl { display: grid; grid-template-columns: minmax(110px, max-content) 1fr; gap: 10px 22px; margin: 12px 0 0; }
.doc dl.ctl dt { font: 700 15px/1.5 var(--display); letter-spacing: .06em; color: var(--accent); text-transform: uppercase; padding-top: 2px; }
.doc dl.ctl dd { margin: 0; color: #d6cfc2; }
.doc .tip { border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 14px 0; color: var(--dim); }

.req { background: var(--panel); }
.req .wrap { padding-block: 40px; display: flex; flex-wrap: wrap; gap: 16px 48px; align-items: center; justify-content: space-between; }
.req p { margin: 0; color: var(--dim); max-width: 70ch; }

/* página de gracias */
.thanks { min-height: 60vh; display: grid; align-content: center; gap: 22px; padding-block: 64px; }
.thanks h1 { margin: 0; font: 800 clamp(48px, 8vw, 104px)/.9 var(--display); text-transform: uppercase; color: var(--gold); }
.thanks p { margin: 0; max-width: 56ch; color: var(--dim); font-size: 19px; }

@media (max-width: 900px) {
  .chain { grid-template-columns: 1fr; gap: 28px; padding-left: 40px; }
  .chain::before { left: 14px; right: auto; top: 0; bottom: 72px; width: 3px; height: auto; }
  .unit::after { display: none; }
  .chain::after { left: 13px; top: 0; width: 4px; height: 18%; background: linear-gradient(180deg, transparent, var(--gold-hot) 70%, transparent); animation-name: signal-v; }
  @keyframes signal-v { from { transform: translateY(-100%); } to { transform: translateY(520%); } }
  .jack { justify-self: start; margin: 0 0 0 -40px; padding-top: 0; grid-auto-flow: column; }
  .jack:last-child { margin-bottom: 0; }
  .thesis, .howto, .does, .manual, .hero .wrap { grid-template-columns: 1fr; }
  .toc { position: static; }
  .does dl { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .unit footer .btn-buy { flex: 1 1 100%; justify-content: center; }
  .doc figure.strip { overflow-x: auto; }
  .doc figure.strip img { width: 720px; max-width: none; }
  body { font-size: 16px; }
  .top nav .hide-s { display: none; }
  .brand b { font-size: 18px; }
  .doc dl.ctl { grid-template-columns: 1fr; gap: 2px; }
  .doc dl.ctl dd { margin-bottom: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .chain::after { animation: none; opacity: 0; }
  * { transition: none !important; }
}
@media print {
  :root { --ground: #fff; --ink: #111; --dim: #333; --rule: #ccc; --panel: #f3f3f3; }
  .top, .hero, .shot, .does, .req, footer.site, .toc { display: none; }
  .doc figure img { box-shadow: none; }
  .manual { grid-template-columns: 1fr; padding: 0; border: 0; }
  .doc p, .doc li, .doc dl.ctl dd { color: #111; }
  .doc h3, .doc dl.ctl dt { color: #6b4e1a; }
}