/* VXP · visual system. Base: SOVRAS's current identity (white, black and neutrals; Geist and Geist Mono;
   radii 5/8/12; color only in blurred fields). Source: investigacion/identidad-sovras.md. */

:root {
	--paper: #ffffff;
	--soft: #f6f6f3;
	--ink: #0a0a0a;
	--ink-soft: #4a4a46;
	--mute: #74746f;
	--line: #e5e5e1;
	--deep: #080808;
	--deep-2: #121313;
	--on-deep: #f3f3ef;
	--on-deep-soft: rgba(243, 243, 239, 0.64);
	--line-deep: rgba(255, 255, 255, 0.14);
	/* Protocol signals: one per actor, never large surfaces. */
	--person: #6b8b9e;
	--agent: #d9b48f;
	--company: #f3f3ef;
	--permit: #2f6886;
	--ok: #4f9e7a;
	--stop: #c2563f;
	--r-sm: 5px;
	--r-md: 8px;
	--r-lg: 12px;
	--sans: "Geist", ui-sans-serif, system-ui, sans-serif;
	--mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
	--ease: cubic-bezier(0.22, 1, 0.36, 1);
	--wrap: min(1180px, calc(100% - 48px));
	color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 16px/1.6 var(--sans); }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--permit); outline-offset: 3px; border-radius: 2px; }
code, kbd, pre, .mono { font-family: var(--mono); font-size: 0.86em; }
p { margin: 0; max-width: 66ch; }
h1, h2, h3 { margin: 0; font-weight: 400; text-wrap: balance; }
.wrap { width: var(--wrap); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 12px; border-radius: var(--r-sm); z-index: 50; }
.skip:focus { left: 12px; }

/* ── Navigation ─────────────────────────────────────────────────────────────── */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, 0.86); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.nav__in { width: var(--wrap); margin-inline: auto; height: 64px; display: flex; align-items: center; gap: 28px; }
.mark { display: flex; align-items: baseline; gap: 10px; text-decoration: none; }
.mark b { font-weight: 600; font-size: 21px; letter-spacing: -0.03em; }
.mark span { font: 400 12px var(--mono); color: var(--mute); }
.nav ul { list-style: none; display: flex; gap: 22px; margin: 0 0 0 auto; padding: 0; font-size: 14.5px; }
.nav ul a { text-decoration: none; color: var(--ink-soft); }
.nav ul a:hover, .nav ul a[aria-current="page"] { color: var(--ink); }
.nav__ver { font: 400 12px var(--mono); color: var(--ink-soft); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 3px 8px; white-space: nowrap; }
.nav__lang { margin: 0; display: flex; gap: 6px; font: 400 12px var(--mono); color: var(--mute); white-space: nowrap; }
.nav__lang b { font-weight: 500; color: var(--ink); }
.nav__lang a { color: var(--ink-soft); text-decoration: none; }
.nav__lang a:hover { color: var(--ink); text-decoration: underline; }
.nav ul .nav__note { display: none; }
@media (min-width: 901px) and (max-width: 1240px) { .nav__in:has(.nav__lang) { gap: 18px; } .nav__in:has(.nav__lang) ul { gap: 16px; font-size: 14px; } }
@media (min-width: 901px) and (max-width: 1060px) { .nav__in:has(.nav__lang) .mark span { display: none; } }
.nav__menu { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 6px 10px; font: inherit; font-size: 14px; color: var(--ink); }
@media (max-width: 900px) {
	.nav ul { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: 8px 24px 16px; }
	.nav ul.open { display: flex; }
	.nav ul a { display: block; padding: 10px 0; font-size: 16px; }
	.nav__menu { display: block; }
	.nav__ver { display: none; }
	.nav ul .nav__note { display: block; padding: 8px 0 2px; font: 400 12px var(--mono); color: var(--mute); }
}

/* ── Page typography ────────────────────────────────────────────────────────── */
.kicker { font: 400 12.5px var(--mono); color: var(--mute); letter-spacing: 0.01em; }
.h1 { font-size: clamp(40px, 6.2vw, 84px); line-height: 0.98; letter-spacing: -0.058em; }
.h2 { font-size: clamp(32px, 4.2vw, 56px); line-height: 1.02; letter-spacing: -0.045em; }
.h3 { font-size: clamp(21px, 2vw, 26px); line-height: 1.12; letter-spacing: -0.03em; }
.lead { font-size: clamp(17px, 1.5vw, 19.5px); line-height: 1.55; color: var(--ink-soft); max-width: 60ch; }
.body-soft { color: var(--ink-soft); }
.small { font-size: 14px; color: var(--mute); }

/* ── Buttons (5px, never pill) ──────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 18px; border-radius: var(--r-sm); font: 500 15px var(--sans); text-decoration: none; border: 1px solid var(--ink); transition: background 0.25s var(--ease), color 0.25s var(--ease); cursor: pointer; }
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: #303030; }
.btn--ghost { background: transparent; color: var(--ink); border-color: rgba(10, 10, 10, 0.3); }
.btn--ghost:hover { border-color: var(--ink); }
.deep .btn--ghost { color: var(--on-deep); border-color: var(--line-deep); }
.deep .btn--ghost:hover { border-color: var(--on-deep); }

/* ── Sections ───────────────────────────────────────────────────────────────── */
.sec { padding-block: clamp(80px, 11vw, 150px); }
.sec + .sec { border-top: 1px solid var(--line); }
.sec__head { display: grid; gap: 18px; margin-bottom: clamp(40px, 6vw, 72px); max-width: 860px; }
.deep { background: var(--deep); color: var(--on-deep); position: relative; overflow: hidden; isolation: isolate; }
.deep .lead, .deep .body-soft { color: var(--on-deep-soft); }
.deep .kicker, .deep .small { color: rgba(243, 243, 239, 0.52); }
.deep::before { content: ""; position: absolute; inset: -20% -10% auto; height: 120%; z-index: -1; pointer-events: none;
	background: radial-gradient(circle at 12% 0%, rgba(37, 105, 142, 0.36), transparent 44%), radial-gradient(circle at 92% 6%, rgba(194, 107, 77, 0.24), transparent 40%); }
.deep + .sec { border-top: 0; }

/* ── Hero ───────────────────────────────────────────────────────────────────── */
.hero { position: relative; padding-block: clamp(72px, 10vw, 140px) clamp(64px, 8vw, 110px); overflow: hidden; isolation: isolate; }
.hero::before { content: ""; position: absolute; z-index: -1; inset: -30% -20% auto 30%; height: 150%; pointer-events: none; filter: blur(10px);
	background: radial-gradient(closest-side at 62% 34%, rgba(65, 144, 174, 0.2), transparent 70%), radial-gradient(closest-side at 86% 56%, rgba(194, 107, 77, 0.16), transparent 72%), radial-gradient(closest-side at 70% 80%, rgba(130, 83, 255, 0.08), transparent 70%); }
.hero__in { display: grid; gap: 30px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 1120px) {
	.hero__in { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); column-gap: 64px; }
	.hero .h1 { font-size: clamp(40px, 3.9vw, 60px); }
	.hero__in > :not(.receipt) { grid-column: 1; }
	.receipt { grid-column: 2; grid-row: 2 / span 4; align-self: end; }
}
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero__meta { max-width: none; display: flex; flex-wrap: wrap; gap: 8px 22px; font: 400 13px var(--mono); color: var(--mute); padding-top: 10px; }
.hero__meta span::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: currentColor; margin-right: 8px; vertical-align: 1px; opacity: 0.55; }
.word { display: inline-block; }
.line { display: block; }

/* ── Origin ─────────────────────────────────────────────────────────────────── */
.origin { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.origin__qs { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.origin__qs li { padding: 18px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 34px 1fr; gap: 10px; font-size: clamp(19px, 1.7vw, 23px); letter-spacing: -0.02em; line-height: 1.25; }
.origin__qs li span { font: 400 13px var(--mono); color: var(--mute); padding-top: 6px; }
@media (max-width: 820px) { .origin { grid-template-columns: 1fr; } }

/* ── Walkthrough ────────────────────────────────────────────────────────────── */
.run { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 28px; align-items: start; }
.run__steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; counter-reset: paso; }
.run__steps button { all: unset; box-sizing: border-box; width: 100%; cursor: pointer; display: grid; grid-template-columns: 30px 1fr; gap: 8px; padding: 12px 12px 12px 10px; border-radius: var(--r-sm); color: var(--on-deep-soft); transition: background 0.25s var(--ease), color 0.25s var(--ease); }
.run__steps button:hover { background: rgba(255, 255, 255, 0.04); color: var(--on-deep); }
.run__steps button[aria-current="step"] { background: rgba(255, 255, 255, 0.07); color: var(--on-deep); }
.run__steps button:focus-visible { outline: 2px solid var(--agent); }
.run__n { font: 400 12.5px var(--mono); padding-top: 3px; opacity: 0.7; }
.run__t { font-size: 16px; line-height: 1.3; letter-spacing: -0.01em; }
.run__bar { grid-column: 2; height: 2px; background: var(--line-deep); border-radius: 2px; overflow: hidden; margin-top: 8px; opacity: 0; }
.run__steps button[aria-current="step"] .run__bar { opacity: 1; }
.run__bar i { display: block; height: 100%; width: 0; background: var(--agent); }
.run__main { display: grid; gap: 14px; min-width: 0; }
.stage { border: 1px solid var(--line-deep); border-radius: var(--r-lg); background: rgba(255, 255, 255, 0.025); padding: 18px 18px 14px; }
.stage svg { width: 100%; height: auto; overflow: visible; }
.stage__caption { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; align-items: baseline; margin-top: 6px; }
.stage__say { font-size: 17px; line-height: 1.45; color: var(--on-deep); max-width: 62ch; }
.paths { display: flex; flex-wrap: wrap; gap: 6px; }
.path { font: 400 11.5px var(--mono); border: 1px solid var(--line-deep); border-radius: var(--r-sm); padding: 3px 7px; color: var(--on-deep-soft); white-space: nowrap; }
.path b { font-weight: 500; color: var(--on-deep); }
.path[data-s="live"] { border-color: rgba(79, 158, 122, 0.6); }
.path[data-s="pending"] { border-style: dashed; opacity: 0.7; }
@media (max-width: 600px) { .path { white-space: normal; max-width: 100%; } }
.obj { border: 1px solid var(--line-deep); border-radius: var(--r-lg); background: #0c0d0d; overflow: hidden; }
.obj__head { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line-deep); font: 400 12.5px var(--mono); color: var(--on-deep-soft); }
.obj__head b { color: var(--on-deep); font-weight: 500; }
.obj pre { margin: 0; padding: 14px; max-height: 340px; overflow: auto; font-size: 12.5px; line-height: 1.6; color: rgba(243, 243, 239, 0.72); tab-size: 2; }
.obj pre .k { color: rgba(243, 243, 239, 0.9); }
.obj pre .s { color: #b9c8d2; }
.obj pre .hl { background: rgba(217, 180, 143, 0.14); box-shadow: inset 2px 0 0 var(--agent); color: var(--on-deep); display: inline-block; min-width: 100%; }
.run__ctl { display: flex; gap: 8px; align-items: center; }
.run__ctl button { height: 34px; padding: 0 12px; border-radius: var(--r-sm); border: 1px solid var(--line-deep); background: transparent; color: var(--on-deep); font: 400 13px var(--sans); cursor: pointer; }
.run__ctl button:hover { border-color: var(--on-deep-soft); }
.chain { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 6px; margin-top: 2px; }
.link { border: 1px solid var(--line-deep); border-radius: var(--r-sm); padding: 8px 9px; font: 400 11.5px/1.35 var(--mono); color: var(--on-deep-soft); opacity: 0.28; transition: opacity 0.5s var(--ease), border-color 0.5s var(--ease); min-width: 0; }
.link span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link b { display: block; color: var(--on-deep); font-weight: 500; font-size: 12px; overflow: hidden; text-overflow: ellipsis; }
.link.on { opacity: 1; }
.link[data-signer="company"].on { border-color: rgba(243, 243, 239, 0.5); }
.link[data-signer="operator"].on { border-color: rgba(107, 139, 158, 0.75); }
@media (max-width: 960px) {
	.run { grid-template-columns: 1fr; }
	.run__steps { grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
	.run__steps button { grid-template-columns: 1fr; padding: 8px 6px; text-align: center; }
	.run__t, .run__bar { display: none; }
	.run__n { padding: 0; }
	.chain { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ── Questions ──────────────────────────────────────────────────────────────── */
.qa { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(32px, 5vw, 72px); }
.qa article { display: grid; gap: 16px; align-content: start; }
.qa ul { margin: 0; padding-left: 18px; display: grid; gap: 8px; color: var(--ink-soft); }
.qa dl { margin: 0; display: grid; gap: 14px; }
.qa dt { font-weight: 500; }
.qa dd { margin: 4px 0 0; color: var(--ink-soft); }
@media (max-width: 820px) { .qa { grid-template-columns: 1fr; } }

/* ── Capabilities ───────────────────────────────────────────────────────────── */
.caps { display: grid; border-top: 1px solid var(--ink); }
.cap { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 5fr) minmax(0, 3fr); gap: clamp(20px, 4vw, 56px); padding: clamp(28px, 4vw, 44px) 0; border-bottom: 1px solid var(--line); align-items: start; }
.cap h3 { font-size: clamp(26px, 2.8vw, 38px); letter-spacing: -0.04em; line-height: 1.04; }
.cap p { color: var(--ink-soft); }
.cap__rule { font: 400 13px/1.5 var(--mono); color: var(--ink-soft); border-left: 2px solid var(--permit); padding-left: 12px; }
@media (max-width: 860px) { .cap { grid-template-columns: 1fr; } }

/* ── Tables ─────────────────────────────────────────────────────────────────── */
.tbl { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-md); }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; min-width: 680px; }
th, td { text-align: left; vertical-align: top; padding: 14px 16px; border-bottom: 1px solid var(--line); }
th { font: 500 12.5px var(--mono); color: var(--ink-soft); background: var(--soft); }
tr:last-child td { border-bottom: 0; }
td .st { font: 400 12px var(--mono); white-space: nowrap; }
.st--exp { color: #8a5a1f; }
.st--live { color: #2e7556; }
.st--pend { color: var(--mute); }

/* ── Demonstrations ─────────────────────────────────────────────────────────── */
.demos { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.demo { border: 1px solid var(--line); border-radius: var(--r-md); padding: 22px; display: grid; gap: 14px; align-content: start; background: var(--paper); }
.demo h3 { font-size: 20px; letter-spacing: -0.02em; line-height: 1.2; }
.demo dl { margin: 0; display: grid; grid-template-columns: 112px 1fr; gap: 6px 14px; font-size: 14px; }
.demo dt { font: 400 12.5px var(--mono); color: var(--mute); padding-top: 2px; }
.demo dd { margin: 0; color: var(--ink-soft); }
.demo__proof { font: 400 12.5px var(--mono); padding-top: 12px; border-top: 1px solid var(--line); color: var(--ink-soft); }
.note { border-left: 2px solid var(--ink); padding: 4px 0 4px 16px; color: var(--ink-soft); font-size: 15px; max-width: 80ch; }
@media (max-width: 820px) { .demos { grid-template-columns: 1fr; } .demo dl { grid-template-columns: 1fr; } .demo dt { padding-top: 6px; } }

/* ── Open ───────────────────────────────────────────────────────────────────── */
.open { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line-deep); }
.open a, .open div { padding: 26px 22px 26px 0; display: grid; gap: 8px; text-decoration: none; border-bottom: 1px solid var(--line-deep); align-content: start; }
.open h3 { font-size: 21px; letter-spacing: -0.02em; }
.open p { font-size: 14.5px; color: var(--on-deep-soft); }
.open a:hover h3 { text-decoration: underline; text-underline-offset: 4px; }
@media (max-width: 900px) { .open { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .open { grid-template-columns: 1fr; } }

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.foot { background: var(--deep); color: var(--on-deep-soft); padding-block: 56px 40px; font-size: 14px; }
.foot__in { width: var(--wrap); margin-inline: auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.foot b { color: var(--on-deep); font-weight: 500; }
.foot ul { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 6px; }
.foot a { color: var(--on-deep-soft); text-decoration: none; }
.foot a:hover { color: var(--on-deep); }
@media (max-width: 760px) { .foot__in { grid-template-columns: 1fr; } }

/* ── Reveal (a single orchestration: the headline) ─────────────────────────── */
.js .reveal-words .word { opacity: 0.001; transform: translateY(16px); filter: blur(6px); }
.js .reveal-words.go .word { opacity: 1; transform: none; filter: none; transition: opacity 1.1s var(--ease), transform 1.35s var(--ease), filter 1.2s var(--ease); }
@media (prefers-reduced-motion: reduce) {
	.js .reveal-words .word { opacity: 1; transform: none; filter: none; }
	.link, .run__steps button { transition: none; }
}

/* ── Hero proof ────────────────────────────────────────────────────────────── */
.receipt { max-width: 600px; margin: 0; border: 1px solid var(--line); border-radius: var(--r-lg); background: rgba(255, 255, 255, 0.82); backdrop-filter: blur(6px); padding: 18px 18px 16px; display: grid; gap: 12px; box-shadow: 0 1px 1px rgba(20, 32, 46, 0.04), 0 40px 90px -50px rgba(20, 32, 46, 0.4); }
.receipt__head { display: flex; justify-content: space-between; align-items: baseline; font: 400 12.5px var(--mono); color: var(--mute); }
.receipt__head b { font: 500 15px var(--sans); color: var(--ink); letter-spacing: -0.01em; }
.receipt__rows { list-style: none; margin: 0; padding: 0; display: grid; }
.receipt__rows li { display: grid; grid-template-columns: 14px 104px minmax(0, 1fr) 64px 50px; gap: 8px; padding: 8px 0; border-top: 1px solid var(--line); font: 400 12px var(--mono); color: var(--ink-soft); align-items: baseline; }
.r-seq { color: var(--mute); }
.r-kind { color: var(--ink); font-weight: 500; }
.r-sum { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.r-by[data-signer="company"] { color: var(--ink); }
.r-by[data-signer="operator"] { color: var(--permit); }
.r-prev { color: var(--mute); text-align: right; }
.receipt__verdict { font: 400 12px/1.6 var(--mono); color: var(--ink-soft); padding-top: 10px; border-top: 1px solid var(--ink); max-width: none; }
.receipt__verdict b { color: var(--ok); font-weight: 500; }
.receipt__more { font-size: 13.5px; color: var(--ink-soft); }
@media (max-width: 520px) { .receipt { padding: 14px; } .receipt__rows li { grid-template-columns: 12px 96px minmax(0, 1fr) 60px; font-size: 11.5px; } .r-prev { display: none; } }

.flows-list { display: none; list-style: none; margin: 0 0 12px; padding: 0; gap: 8px; }
.flows-list li { display: grid; gap: 2px; font: 400 12.5px/1.4 var(--mono); color: var(--on-deep); border-left: 2px solid var(--on-deep); padding-left: 10px; }
.flows-list li.back { color: var(--on-deep-soft); border-left-style: dashed; border-left-color: var(--on-deep-soft); }
.flows-list li span { font-family: var(--sans); font-size: 12.5px; color: var(--on-deep-soft); }
@media (max-width: 700px) {
	.stage svg { display: none; }
	.flows-list { display: grid; }
	.link { font-size: 11px; }
	.link .p { display: none; }
}

/* With "Docs", the bar holds eight links: at medium widths it tightens and keeps only the mark. */
@media (min-width: 901px) and (max-width: 1180px) { .nav__in { gap: 18px; } .nav ul { gap: 15px; font-size: 14px; } .mark span { display: none; } }
@media (min-width: 901px) and (max-width: 1500px) { html[lang="es"] .nav__in:has(.nav__lang) .mark span { display: none; } }
@media (min-width: 901px) and (max-width: 1000px) { html[lang="es"] .nav__in { gap: 14px; } html[lang="es"] .nav ul { gap: 11px; font-size: 13.5px; } }