/* Phosphor OS · web
 * Concepto: la página es la propia pantalla de la consola. Fondo de vidrio
 * apagado, las tres barras R/G/B como único gesto de color, tipografía del
 * menú (Bricolage condensada) y cifras técnicas en monoespaciada.
 * Diseño de un solo tema (oscuro) a propósito: es la identidad del sistema.
 */
:root {
	--glass: #08090a;        /* fondo: vidrio de un tubo apagado */
	--panel: #111513;        /* superficies */
	--line: #1e2622;         /* filetes y bordes */
	--ink: #eef2ee;          /* texto */
	--muted: #a3afa7;        /* texto secundario */
	--dim: #6f7b73;          /* etiquetas */
	--red: #ff3b4e;
	--green: #39e27a;        /* acento: el fósforo verde */
	--blue: #3b7bff;
	--sel: #0d1f14;          /* fondo de selección del menú */
	--ink-2: #c9d2cc;        /* texto largo en la guía */
	--bezel: #0c0f0d;        /* marco de la "pantalla" */
	--black: #000000;

	--f-display: "Inter Tight", "Helvetica Neue", Arial, system-ui, sans-serif;
	--f-body: "Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", sans-serif;
	--f-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
	--f-pixel: "Silkscreen", ui-monospace, monospace;

	--step--1: 0.875rem;
	--step-0: 1.0625rem;
	--step-1: 1.3rem;
	--step-2: 1.75rem;
	--step-3: clamp(2.2rem, 5vw, 3.4rem);
	--step-4: clamp(2.8rem, 8vw, 5.6rem);

	--wrap: 72rem;
	--radius: 14px;
	color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
	margin: 0;
	background: var(--glass);
	color: var(--ink);
	font: 400 var(--step-0)/1.6 var(--f-body);
	-webkit-font-smoothing: antialiased;
}

a { color: var(--green); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 4px; }
img { max-width: 100%; height: auto; display: block; }

.wrap {
	width: 100%;
	max-width: var(--wrap);
	margin-inline: auto;
	padding-left: max(16px, env(safe-area-inset-left, 0px));
	padding-right: max(16px, env(safe-area-inset-right, 0px));
}

h1, h2, h3 {
	font-family: var(--f-display);
	font-weight: 800;
	line-height: 1.04;
	letter-spacing: -0.01em;
	text-wrap: balance;
	margin: 0;
}
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }
p { margin: 0; max-width: 62ch; }

.eyebrow {
	font: 500 var(--step--1)/1 var(--f-mono);
	color: var(--dim);
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

/* las tres barras como marca */
.bars { display: inline-flex; gap: 0.18em; vertical-align: middle; }
.bars i { display: block; width: 0.26em; height: 1em; border-radius: 0.13em; }
.bars i:nth-child(1) { background: var(--red); box-shadow: 0 0 0.5em var(--red); }
.bars i:nth-child(2) { background: var(--green); box-shadow: 0 0 0.5em var(--green); }
.bars i:nth-child(3) { background: var(--blue); box-shadow: 0 0 0.5em var(--blue); }

/* ---------------------------------------------------------------- cabecera */
.top {
	position: sticky;
	top: env(safe-area-inset-top, 0px);
	z-index: 20;
	background: color-mix(in srgb, var(--glass) 88%, transparent);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--line);
}
body::before {
	content: "";
	position: fixed;
	inset: 0 0 auto;
	height: env(safe-area-inset-top, 0px);
	z-index: 21;
	background: var(--glass);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 0.8rem; }
.brand {
	display: inline-flex; align-items: center; gap: 0.55rem;
	color: var(--ink); text-decoration: none;
	font: 800 1.3rem/1 var(--f-display); letter-spacing: -0.01em;
}
.brand .bars { font-size: 1.15rem; }
.nav { display: flex; gap: 1.3rem; flex-wrap: wrap; font-size: var(--step--1); }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }
@media (max-width: 640px) { .nav .opt { display: none; } }
.nav { margin-left: auto; }

/* selector de idioma: <details> sin JS */
.lang { position: relative; font: 500 var(--step--1)/1 var(--f-mono); }
.lang summary {
	list-style: none; cursor: pointer; user-select: none;
	display: inline-flex; align-items: center; gap: 0.4em;
	padding: 0.45em 0.6em; border: 1px solid var(--line); border-radius: 8px;
	color: var(--muted); letter-spacing: 0.06em;
}
.lang summary::-webkit-details-marker { display: none; }
.lang summary::after { content: ""; width: 0.4em; height: 0.4em; border: solid currentColor; border-width: 0 1.5px 1.5px 0; transform: translateY(-0.15em) rotate(45deg); }
.lang summary:hover, .lang[open] summary { color: var(--ink); border-color: var(--dim); }
.lang ul {
	position: absolute; right: 0; top: calc(100% + 0.4rem); z-index: 30;
	margin: 0; padding: 0.35rem; list-style: none; min-width: 10rem;
	background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
	box-shadow: 0 12px 30px color-mix(in srgb, var(--black) 60%, transparent);
}
.lang li a {
	display: flex; justify-content: space-between; gap: 1rem;
	padding: 0.55rem 0.65rem; border-radius: 6px;
	color: var(--muted); text-decoration: none; font-family: var(--f-body);
}
.lang li a span { font-family: var(--f-mono); color: var(--dim); letter-spacing: 0.06em; }
.lang li a:hover { background: var(--sel); color: var(--ink); }
.lang li a[aria-current="true"] { color: var(--green); }
.lang li a[aria-current="true"] span { color: var(--green); }

/* -------------------------------------------------------------------- hero */
.hero { padding-block: clamp(2rem, 6vw, 4.5rem) clamp(2.5rem, 6vw, 4rem); }
.hero .wrap { display: grid; gap: clamp(1.5rem, 4vw, 3rem); }
.hero .wrap > * { min-width: 0; }
.screen {
	position: relative;
	border-radius: 22px;
	background: var(--black);
	border: 1px solid var(--line);
	box-shadow: 0 0 0 10px var(--bezel), 0 30px 80px -30px rgba(57, 226, 122, 0.18);
	overflow: hidden;
	aspect-ratio: 16 / 7;
	max-width: 100%;
}
.screen canvas { width: 100%; height: 100%; display: block; }
.screen::after {
	/* scanlines muy suaves sobre la animación */
	content: "";
	position: absolute; inset: 0; pointer-events: none;
	background: repeating-linear-gradient(to bottom, transparent 0 2px, rgba(0, 0, 0, 0.22) 2px 3px);
}
.replay {
	position: absolute; right: 14px; bottom: 12px; z-index: 2;
	font: 500 0.78rem/1 var(--f-mono); color: var(--muted);
	background: rgba(8, 9, 10, 0.7); border: 1px solid var(--line); border-radius: 999px;
	padding: 0.45rem 0.8rem; cursor: pointer;
}
.replay:hover { color: var(--ink); }
.hero-text { display: grid; gap: 1.1rem; }
.hero-text > * { min-width: 0; }
.hero h1 { font-size: var(--step-4); overflow-wrap: break-word; hyphens: auto; }
.hero h1 em { font-style: normal; color: var(--green); }
.lead { font-size: var(--step-1); color: var(--muted); line-height: 1.45; }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; margin-top: 0.4rem; }
.btn {
	display: inline-flex; align-items: center; gap: 0.6rem;
	font: 600 var(--step-0)/1 var(--f-body);
	padding: 0.85rem 1.25rem; border-radius: 999px; text-decoration: none;
}
.btn.primary { background: var(--green); color: var(--glass); }
.btn.ghost { border: 1.5px solid var(--line); color: var(--ink); }
.btn.ghost:hover { border-color: var(--muted); }
.soon { font: 500 var(--step--1)/1.3 var(--f-mono); color: var(--dim); }
@media (min-width: 900px) {
	.hero .wrap { grid-template-columns: 1.15fr 1fr; align-items: center; }
	.hero .screen { order: 2; aspect-ratio: 4 / 3; }
}

/* --------------------------------------------------------------- secciones */
section { padding-block: clamp(3rem, 8vw, 5.5rem); border-top: 1px solid var(--line); }
.head { display: grid; gap: 0.8rem; margin-bottom: clamp(1.8rem, 4vw, 2.8rem); }
.head p { color: var(--muted); }

/* dos salidas */
.outputs { display: grid; gap: 1.5rem; }
@media (min-width: 860px) { .outputs { grid-template-columns: 1fr 1fr; } }
.out { display: grid; gap: 0.9rem; min-width: 0; }
.out figure { margin: 0; }
.frame {
	border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
	background: var(--black); position: relative;
}
.frame.crt img { image-rendering: pixelated; }
.frame.crt::after {
	content: ""; position: absolute; inset: 0; pointer-events: none;
	background: repeating-linear-gradient(to bottom, transparent 0 3px, rgba(0, 0, 0, 0.35) 3px 4px);
}
.spec { display: flex; flex-wrap: wrap; gap: 0.4rem 1rem; font: 500 var(--step--1)/1.4 var(--f-mono); color: var(--muted); }
.spec b { color: var(--ink); font-weight: 500; }
.out h3 { font-size: var(--step-1); font-stretch: 100%; font-family: var(--f-body); font-weight: 700; }
.out p { color: var(--muted); font-size: var(--step-0); }

/* características */
.features { display: grid; gap: 0; grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr)); border-top: 1px solid var(--line); }
.feat { padding: 1.4rem 1.2rem 1.6rem 0; border-bottom: 1px solid var(--line); display: grid; gap: 0.45rem; align-content: start; min-width: 0; }
.feat h3 { font-size: var(--step-1); font-family: var(--f-body); font-stretch: 100%; font-weight: 700; line-height: 1.25; }
.feat p { color: var(--muted); font-size: 0.98rem; }
.feat .eyebrow { color: var(--green); }

/* galería */
.gallery { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); }
.gallery figure { margin: 0; display: grid; gap: 0.55rem; }
.gallery figcaption { font: 500 var(--step--1)/1.4 var(--f-mono); color: var(--dim); }

/* sistemas */
.systems { display: grid; gap: 0.8rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 9.5rem), 1fr)); }
.sys {
	display: grid; justify-items: center; gap: 0.5rem; text-align: center;
	padding: 1.2rem 0.6rem 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel);
}
.sys img { width: 76px; height: 57px; object-fit: contain; opacity: 0.92; }
.sys b { font: 700 1.05rem/1.1 var(--f-display); letter-spacing: -0.01em; }
.sys span { font: 400 0.78rem/1.3 var(--f-mono); color: var(--dim); }

/* placas */
.boards { display: grid; gap: 1.5rem; }
@media (min-width: 860px) { .boards { grid-template-columns: 1fr 1fr; } }
.board { display: grid; gap: 0.8rem; align-content: start; padding: 1.6rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); min-width: 0; }
.board h3 { font-size: var(--step-2); }
.board p { color: var(--muted); }
.board ul { margin: 0; padding-left: 1.1rem; color: var(--muted); display: grid; gap: 0.3rem; }

/* tablas */
.table { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: 0.97rem; }
th, td { text-align: left; padding: 0.7rem 1rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font: 500 var(--step--1)/1.3 var(--f-mono); color: var(--dim); letter-spacing: 0.04em; background: var(--panel); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.y { color: var(--green); }
td.n { color: var(--dim); }
td { font-variant-numeric: tabular-nums; }

/* preguntas */
.faq { display: grid; gap: 0; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding-block: 1rem; }
.faq summary { cursor: pointer; font-weight: 600; font-size: var(--step-1); list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--f-mono); color: var(--green); }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); margin-top: 0.6rem; }

/* pie */
footer { border-top: 1px solid var(--line); padding-block: 2.5rem 3rem; color: var(--dim); font-size: var(--step--1); }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; }

/* ---------------------------------------------------------------- guía */
.doc { padding-block: clamp(2rem, 5vw, 3.5rem) 4rem; }
.doc .wrap { display: grid; gap: 2.5rem; }
@media (min-width: 1000px) { .doc .wrap { grid-template-columns: 15rem minmax(0, 1fr); } }
.toc { font-size: var(--step--1); }
.toc nav { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 5rem); display: grid; gap: 0.45rem; }
.toc a { color: var(--muted); text-decoration: none; }
.toc a:hover { color: var(--ink); }
.prose { min-width: 0; max-width: 46rem; }
.prose > * + * { margin-top: 1rem; }
.prose h1 { font-size: var(--step-4); margin-bottom: 1.5rem; overflow-wrap: break-word; hyphens: auto; }
.prose h2 { font-size: var(--step-2); margin-top: 3rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.prose h3 { font-size: var(--step-1); font-family: var(--f-body); font-stretch: 100%; font-weight: 700; margin-top: 1.8rem; }
.prose p, .prose li { color: var(--ink-2); max-width: none; }
.prose ul, .prose ol { padding-left: 1.3rem; display: grid; gap: 0.35rem; }
.prose hr { display: none; }
.prose :not(pre) > code { overflow-wrap: anywhere; }
.prose code { font: 0.9em var(--f-mono); background: var(--panel); border: 1px solid var(--line); border-radius: 5px; padding: 0.1em 0.35em; }
.prose pre { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 1rem 1.2rem; overflow-x: auto; }
.prose pre code { background: none; border: 0; padding: 0; font-size: 0.88rem; line-height: 1.6; }
.prose blockquote { margin: 0; padding: 0.8rem 1.1rem; border-left: 3px solid var(--green); background: var(--sel); border-radius: 0 10px 10px 0; color: var(--ink); }
.prose blockquote p { color: var(--ink); }
.prose table { font-size: 0.93rem; }
.prose .table { margin-top: 1rem; }