@font-face { font-family: "Montserrat"; src: url(fonts/montserrat-latin.woff2) format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url(fonts/jetbrainsmono-latin.woff2) format("woff2"); font-weight: 100 800; font-display: swap; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }
img { max-width: 100%; }
[hidden] { display: none !important; }
:root { padding-top: env(safe-area-inset-top, 0px); padding-bottom: env(safe-area-inset-bottom, 0px); }
/* Layout: identidad de Brandon Engineer (rojo #FA130C, Montserrat, marco cuadrado).
   Tres conductores L1/L2/L3 desfasados 120° cruzan la cabecera; bandas separadas
   por líneas y un cajetín de plano al pie. */
:root {
  --bg: #f5f6f7;
  --surface: #ffffff;
  --ink: #15171a;
  --muted: #5a6068;
  --line: #dcdfe3;
  --red: #fa130c;
  --red-text: #c90d07;
  --on-red: #ffffff;
  --l1: #7a4b24;
  --l2: #15171a;
  --l3: #8a9299;
  --f-display: "Montserrat", "Arial Black", system-ui, sans-serif;
  --f-body: "Montserrat", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e0f11; --surface: #16181b; --ink: #ecedee; --muted: #9ba1a8; --line: #2a2d31;
    --red: #fa130c; --red-text: #ff4a3f; --on-red: #ffffff;
    --l1: #b07440; --l2: #ecedee; --l3: #7d868e; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e0f11; --surface: #16181b; --ink: #ecedee; --muted: #9ba1a8; --line: #2a2d31;
  --red: #fa130c; --red-text: #ff4a3f; --on-red: #ffffff;
  --l1: #b07440; --l2: #ecedee; --l3: #7d868e; color-scheme: dark;
}

* { box-sizing: border-box; }
body { background: var(--bg); color: var(--ink); font: 400 16px/1.65 var(--f-body); }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }

.wrap {
  max-width: 1080px; margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.band { border-top: 1px solid var(--line); }
.band > .wrap { padding-block: clamp(48px, 8vw, 88px); }

/* Logotipo */
.lock { display: inline-flex; align-items: center; gap: .35em; color: var(--red-text); text-decoration: none; }
.lock .icon { width: 1.25em; height: 1.25em; flex: none; }
.lock .wm { display: inline-grid; gap: .04em; }
.lock .name { font: 800 1em/1 var(--f-display); letter-spacing: .03em; display: flex; align-items: baseline; }
.lock .name svg { height: .8em; width: auto; margin: 0 .01em 0 .02em; transform: translateY(.06em); }

/* Cabecera */
.top > .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 18px; }
.top .lock { font-size: 30px; }
.top nav { display: flex; gap: 8px 22px; flex-wrap: wrap; font-size: 14px; font-weight: 500; }
.top nav a { text-decoration: none; color: var(--muted); }
.top nav a:hover { color: var(--ink); }
.top .menu { display: flex; align-items: center; gap: 14px 26px; flex-wrap: wrap; }
.langs { position: relative; }
.langs summary {
  list-style: none; display: flex; align-items: center; gap: 8px; cursor: pointer;
  padding: 7px 10px; border: 1px solid var(--line); color: var(--ink);
  font: 500 12px/1 var(--f-mono); letter-spacing: .06em;
}
.langs summary::-webkit-details-marker { display: none; }
.langs summary:hover { border-color: var(--muted); }
.langs summary:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }
.langs .flag { width: 21px; height: 14px; flex: none; box-shadow: 0 0 0 1px var(--line); }
.langs .chev { width: 10px; height: 10px; color: var(--muted); transition: transform .15s; }
.langs[open] .chev { transform: rotate(180deg); }
.langs ul {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 20; min-width: 180px;
  list-style: none; margin: 0; padding: 6px; background: var(--surface);
  border: 1px solid var(--line); box-shadow: 0 14px 34px -14px rgba(0, 0, 0, .4);
}
.langs li a { display: flex; align-items: center; gap: 10px; padding: 9px 10px; text-decoration: none; font-size: 14px; font-weight: 500; }
.langs li a:hover { background: var(--bg); }
.langs li a[aria-current] { color: var(--red-text); font-weight: 600; }
.langs li a[aria-current]::after { content: "✓"; margin-left: auto; }
@media (max-width: 640px) {
  .top .menu { display: contents; }
  .top .langs { order: 2; }
  .top nav:not(.langs) { order: 3; width: 100%; gap: 6px 18px; }
}

/* Hero */
.hero > .wrap { padding-block: clamp(28px, 5vw, 56px) 0; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: center; }
.hero-grid > * { min-width: 0; }
.mark { width: clamp(150px, 20vw, 220px); height: auto; color: var(--red); }
.status {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 12px/1 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--red-text);
}
.status::before { content: ""; width: 8px; height: 8px; background: var(--red); }
h1 {
  font: 800 clamp(38px, 6.6vw, 76px)/1 var(--f-display); letter-spacing: -.02em;
  margin: 18px 0 20px; text-wrap: balance; max-width: 13ch;
}
h1 em { font-style: normal; color: var(--red-text); }
.lead { font-size: clamp(16px, 1.8vw, 19px); color: var(--muted); max-width: 36em; margin: 0 0 28px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; padding: 13px 20px;
  font: 600 15px/1 var(--f-body); text-decoration: none;
  border: 2px solid var(--ink); background: transparent;
}
.btn.primary { background: var(--red); border-color: var(--red); color: var(--on-red); }
.btn:hover { filter: brightness(1.06); }

.phases { margin-top: clamp(40px, 6vw, 64px); position: relative; }
.phases svg { display: block; width: 100%; height: clamp(110px, 16vw, 170px); }
.phases path { fill: none; stroke-width: 3; stroke-linecap: round; }
.phases .grid { stroke: var(--line); stroke-width: 1; }
.phase-labels {
  position: absolute; left: 0; top: 0; bottom: 0; display: flex; flex-direction: column;
  justify-content: center; gap: 6px; font: 500 12px/1 var(--f-mono);
}
.phase-labels span { background: var(--bg); padding: 3px 6px 3px 0; }
.phase-note { font: 400 12px/1.4 var(--f-mono); color: var(--muted); margin: 8px 0 0; text-align: right; }

/* Secciones */
h2 { font: 800 clamp(26px, 3.6vw, 38px)/1.1 var(--f-display); letter-spacing: -.015em; margin: 0 0 10px; text-wrap: balance; }
.sec-head { display: grid; gap: 6px; margin-bottom: 32px; max-width: 42em; }
.sec-head p { margin: 0; color: var(--muted); }
.eyebrow { display: flex; align-items: center; gap: 10px; font: 500 12px/1 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--red-text); }
.eyebrow::after { content: ""; width: 40px; height: 1px; background: currentColor; }

.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.feat { background: var(--surface); padding: 24px; display: grid; gap: 8px; align-content: start; }
.feat .tag { font: 500 13px/1 var(--f-mono); color: var(--red-text); }
.feat h3 { font: 700 18px/1.3 var(--f-display); margin: 0; }
.feat p { margin: 0; color: var(--muted); font-size: 14.5px; }
.chip { font: 500 11px/1 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; margin-top: 6px; }
.chip.wip { color: var(--red-text); }
.chip.wip::before { content: "● "; }
.chip.plan { color: var(--muted); }
.chip.plan::before { content: "○ "; }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 72px); align-items: start; }
.split > * { min-width: 0; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checks li { display: grid; grid-template-columns: 26px minmax(0, 1fr); gap: 10px; }
.checks svg { width: 20px; height: 20px; margin-top: 3px; }
.checks b { font-weight: 600; }

.compat { border: 2px solid var(--ink); background: var(--surface); padding: 24px; display: grid; gap: 14px; }
.compat .row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font: 500 14px/1.4 var(--f-mono); }
.compat .file { padding: 6px 10px; border: 1px solid var(--line); background: var(--bg); }
.compat .arrow { color: var(--red-text); }
.compat p { margin: 0; color: var(--muted); font-size: 15px; }

.code {
  display: flex; align-items: center; gap: 12px; border: 1px solid var(--line);
  background: var(--surface); padding: 4px 4px 4px 16px; max-width: 680px;
}
.code pre { margin: 0; overflow-x: auto; flex: 1; min-width: 0; font: 400 14px/2.6 var(--f-mono); }
.code button {
  flex: none; font: 600 14px var(--f-body); padding: 9px 14px;
  border: 0; background: var(--red); color: var(--on-red); cursor: pointer;
}
.note { color: var(--muted); font-size: 14.5px; margin: 14px 0 0; max-width: 40em; }


/* Capturas */
.shot { margin: 0; display: grid; gap: 10px; min-width: 0; }
.shot .frame { border: 1px solid var(--line); background: var(--surface); box-shadow: 0 1px 0 var(--line), 0 18px 40px -24px rgba(0,0,0,.35); }
.shot img { display: block; width: 100%; height: auto; }
.shot figcaption { font-size: 14px; color: var(--muted); }
.shot figcaption b { color: inherit; font-weight: 600; }
.shots-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 32px); margin-top: clamp(20px, 3vw, 32px); }
@media (max-width: 820px) { .shots-row { grid-template-columns: minmax(0, 1fr); } }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .mark { display: none; }
  .features, .split { grid-template-columns: minmax(0, 1fr); }
}
@media (min-width: 821px) and (max-width: 1000px) {
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 420px) { .top .lock { font-size: 24px; } }

/* Menú de páginas */
.top nav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--red); }
.top nav a.nav-donar { color: var(--red-text); }

/* Cabecera de las páginas interiores */
.page-head > .wrap { padding-block: clamp(36px, 6vw, 72px) clamp(32px, 5vw, 56px); display: grid; gap: 14px; justify-items: start; }
.page-title { font: 800 clamp(34px, 5.2vw, 60px)/1.05 var(--f-display); letter-spacing: -.02em; margin: 0; max-width: 18ch; text-wrap: balance; }
.page-head .lead { margin: 0; }

/* Ejemplos: hojas de esquema (siempre papel blanco, también en tema oscuro) */
.examples { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(28px, 4vw, 44px) clamp(20px, 3vw, 32px); }
.example { display: grid; gap: 8px; align-content: start; min-width: 0; }
.example h2 { font: 700 20px/1.3 var(--f-display); margin: 0; letter-spacing: 0; }
.example p { margin: 0; color: var(--muted); font-size: 15px; }
.example .tag { font: 500 12px/1.4 var(--f-mono); color: var(--red-text); letter-spacing: .04em; margin-top: 6px; }
.sheet { background: #fff; border: 1px solid var(--line); aspect-ratio: 3 / 2; padding: 14px; min-width: 0; overflow: hidden; }
.sheet img { display: block; width: 100%; height: 100%; max-width: none; object-fit: contain; }

/* Llamada a la acción (donar, foro) */
.cta-grid { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px 40px; flex-wrap: wrap; }
.cta-grid .sec-head { margin-bottom: 0; }

/* Donar */
.donate { border: 2px solid var(--ink); background: var(--surface); padding: clamp(22px, 3vw, 32px); display: grid; gap: 12px; justify-items: start; align-content: start; }
.donate h2 { margin: 0; }
.donate p { margin: 0; color: var(--muted); }
.donate .small { font-size: 13px; }
.btn.big { padding: 16px 26px; font-size: 17px; margin-top: 6px; }
.features.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feat p a { color: var(--ink); }

@media (max-width: 1000px) { .features.four { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .examples { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 520px) { .features.four { grid-template-columns: minmax(0, 1fr); } }
.page-head + .band > .wrap { padding-top: clamp(32px, 5vw, 56px); }

/* Pie de página */
.site-footer { border-top: 1px solid var(--line); background: var(--surface); }
.site-footer > .wrap { padding-block: clamp(40px, 6vw, 56px) 28px; display: grid; gap: 36px; }
.foot-grid { display: grid; grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr)); gap: 32px; }
.foot-brand .lock { font-size: 24px; }
.foot-brand p { margin: 12px 0 0; color: var(--muted); font-size: 14.5px; max-width: 24em; }
.foot-col { display: grid; gap: 10px; align-content: start; font-size: 14.5px; }
.foot-title { margin: 0 0 4px; font: 500 11px/1.4 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.foot-col a { color: var(--ink); text-decoration: none; justify-self: start; }
.foot-col a:hover { color: var(--red-text); text-decoration: underline; text-underline-offset: 3px; }
.foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }
@media (max-width: 820px) {
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot-brand { grid-column: 1 / -1; }
}