/* Go Social Ads — portada. Tokens derivados del logo: cerebro cian (creativo) / circuito naranja (lógico). */

:root {
	--cortex: #0D1321;      /* fondo hemisferio lógico */
	--cortex-2: #151D2E;    /* superficies sobre cortex */
	--trace: #E69057;       /* naranja del circuito (BG_SVG.svg del sitio) */
	--trace-hi: #F2A66F;
	--synapse: #2EBED7;     /* cian del cerebro */
	--synapse-ink: #157D91; /* cian legible sobre claro */
	--wash: #E9F8FB;        /* fondo hemisferio creativo */
	--bone: #F7F9FB;        /* fondo de secciones claras */
	--paper: #FFFFFF;
	--ink: #1A2233;
	--muted: #5B6675;
	--line: #DDE3EA;

	--display: "Big Shoulders Display", "Arial Narrow", Impact, sans-serif;
	--body: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
	--mono: "JetBrains Mono", ui-monospace, Consolas, monospace;

	--wrap: 1200px;
	--gutter: clamp(16px, 4vw, 40px);
	--section: clamp(72px, 10vw, 128px);
	--r: 6px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body.gsa {
	margin: 0;
	background: var(--paper);
	color: var(--ink);
	font-family: var(--body);
	font-size: 1.0625rem;
	line-height: 1.6;
	-webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
ul[role="list"], ol.steps { list-style: none; margin: 0; padding: 0; }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.skip {
	position: absolute; left: 12px; top: -60px; z-index: 100;
	background: var(--trace); color: var(--cortex); padding: 10px 14px; border-radius: var(--r);
	font-weight: 600; text-decoration: none;
}
.skip:focus { top: 12px; }

:focus-visible { outline: 3px solid var(--synapse); outline-offset: 3px; }

.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }

/* ─── Tipografía ───────────────────────────────────────── */

.h2 {
	font-family: var(--display);
	font-weight: 800;
	font-size: clamp(2.4rem, 5vw, 4rem);
	line-height: .95;
	letter-spacing: .005em;
	text-transform: uppercase;
	margin: 0 0 .35em;
}
.h2--onDark { color: var(--paper); }

.h3 {
	font-family: var(--display);
	font-weight: 700;
	font-size: clamp(1.9rem, 3.2vw, 2.6rem);
	line-height: 1;
	text-transform: uppercase;
	letter-spacing: .01em;
	margin: .2em 0 0;
}

.eyebrow {
	font-family: var(--mono);
	font-size: .78rem;
	letter-spacing: .12em;
	text-transform: uppercase;
	color: var(--trace);
	margin: 0 0 .9rem;
}
.eyebrow--onDark { color: var(--trace-hi); }
.eyebrow--social { font-family: var(--body); font-weight: 600; letter-spacing: .1em; color: var(--synapse-ink); }

.lead { font-size: 1.15rem; color: var(--muted); max-width: 56ch; margin: 0; }

.section-head { margin-bottom: clamp(36px, 5vw, 56px); }

/* Etiquetas de hemisferio: codifican a qué lado del cerebro pertenece cada cosa. */
.tag {
	display: inline-flex; align-items: center; gap: .55rem;
	margin: 0;
	font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600;
}
.tag::before { content: ""; width: 14px; height: 14px; border-radius: 50%; flex: none; }
.tag--logic { font-family: var(--mono); color: var(--trace); }
.tag--logic::before { border-radius: 2px; background: var(--trace); }
.tag--social { font-family: var(--body); color: var(--synapse-ink); }
.tag--social::before { background: var(--synapse); }

/* ─── Botones ──────────────────────────────────────────── */

.btn {
	display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
	padding: .7rem 1.15rem;
	border-radius: var(--r);
	font-weight: 600; font-size: .95rem; line-height: 1;
	text-decoration: none;
	border: 1.5px solid transparent;
	cursor: pointer;
	transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--lg { padding: .95rem 1.5rem; font-size: 1rem; }
.btn--primary { background: var(--trace); color: var(--cortex); }
.btn--primary:hover { background: var(--trace-hi); }
.btn--ghost { background: rgba(255, 255, 255, .8); color: var(--ink); border-color: var(--line); backdrop-filter: blur(6px); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--wa { background: #25D366; color: #06301A; }
.btn--wa:hover { background: #3fe07b; }
.btn--wa img { width: 20px; height: 20px; filter: brightness(0) invert(1); }

/* ─── Cabecera ─────────────────────────────────────────── */

.top {
	position: sticky; top: 0; z-index: 50;
	background: rgba(255, 255, 255, .92);
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--line);
}
.top__row { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 74px; }
.top__logo img { width: 190px; height: auto; }
.top__nav { display: flex; align-items: center; gap: clamp(16px, 2.2vw, 32px); }
.top__nav > a:not(.btn) { text-decoration: none; font-weight: 500; font-size: .95rem; color: var(--ink); }
.top__nav > a:not(.btn):hover { color: var(--synapse-ink); }

.top__burger {
	display: none; position: relative; width: 44px; height: 44px;
	background: none; border: 0; padding: 0; cursor: pointer;
}
.top__burger span:not(.sr) {
	position: absolute; left: 10px; width: 24px; height: 2px; background: var(--ink);
	transition: transform .2s ease, opacity .2s ease;
}
.top__burger span:nth-child(1) { top: 14px; }
.top__burger span:nth-child(2) { top: 21px; }
.top__burger span:nth-child(3) { top: 28px; }
.top__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.top__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.top__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── Héroe: dos hemisferios y una costura ─────────────── */

.hero {
	position: relative;
	min-height: clamp(560px, 90vh, 900px);
	display: grid;
	place-items: center;
	overflow: hidden;
	isolation: isolate;
}

.hero__bg {
	position: absolute; inset: 0; z-index: -1;
	display: grid; grid-template-columns: 1fr 1fr;
}
.hemi { position: relative; overflow: hidden; }
.hemi--logic { background: var(--cortex); }
.hemi--social { background: var(--wash); }

.circuit, .blobs { position: absolute; inset: 0; width: 100%; height: 100%; }
.circuit { right: 0; }

.hemi__label {
	position: absolute; margin: 0;
	font-size: .8rem; letter-spacing: .06em;
	display: flex; flex-direction: column; gap: .15rem;
}
.hemi__label span { text-transform: uppercase; letter-spacing: .14em; font-size: .72rem; }
.hemi__label--logic { left: var(--gutter); top: 28px; font-family: var(--mono); color: rgba(255, 255, 255, .7); }
.hemi__label--logic span { color: var(--trace); }
.hemi__label--social { right: var(--gutter); top: 28px; text-align: right; font-family: var(--body); color: var(--muted); }
.hemi__label--social span { color: var(--synapse-ink); font-weight: 600; }

/* Trazado del circuito: se "dibuja" al cargar, con escalonado por --d. */
.circuit__traces path, .circuit__traces rect {
	stroke-dasharray: 900;
	stroke-dashoffset: 900;
	animation: gsa-draw 1.6s cubic-bezier(.4, 0, .2, 1) forwards;
	animation-delay: var(--d, 0s);
}
.circuit__pads { opacity: 0; animation: gsa-fade .6s ease forwards 1.4s; }
@keyframes gsa-draw { to { stroke-dashoffset: 0; } }
@keyframes gsa-fade { to { opacity: 1; } }

/* Formas orgánicas: deriva lenta. */
.blob {
	transform-box: fill-box; transform-origin: center;
	animation: gsa-drift var(--t, 16s) ease-in-out infinite alternate;
	animation-delay: var(--delay, 0s);
}
@keyframes gsa-drift {
	from { transform: translate(0, 0) scale(1); }
	to { transform: translate(18px, -22px) scale(1.06); }
}
.dots { opacity: 0; animation: gsa-fade 1s ease forwards .6s; }

/* Tres capas idénticas centradas en el mismo cuadro: la costura es el 50% del héroe. */
.hero__layer {
	position: absolute; inset: 0;
	display: grid; place-items: center;
	pointer-events: none;
}
.hero__layer--dark { color: var(--paper); clip-path: inset(0 50% 0 0); }
.hero__layer--light { color: var(--ink); clip-path: inset(0 0 0 50%); }
.hero__layer--dark .hero__cta, .hero__layer--light .hero__cta { visibility: hidden; }
.hero__layer--ui { position: relative; inset: auto; width: 100%; z-index: 2; pointer-events: auto; }
.hero__layer--ui .hero__title, .hero__layer--ui .hero__sub { opacity: 0; }

.hero__center {
	width: min(1120px, 100% - 2 * var(--gutter));
	text-align: center;
	padding: 120px 0 72px;
	display: grid;
	gap: 28px;
	justify-items: center;
}

.hero__title {
	font-family: var(--display);
	font-weight: 800;
	font-size: clamp(3.4rem, 9vw, 8.25rem);
	line-height: .9;
	letter-spacing: .005em;
	text-transform: uppercase;
	margin: 0;
}
.hero__line { display: block; }

.hero__sub {
	font-size: clamp(1.05rem, 1.6vw, 1.25rem);
	max-width: 44ch;
	margin: 24px auto 0;
	opacity: .92;
}

.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ─── Servicios: libro mayor ───────────────────────────── */

.services { padding-block: var(--section); }

.ledger { border-top: 1px solid var(--line); }
.ledger__row {
	display: grid;
	grid-template-columns: 5fr 4fr 3fr;
	gap: clamp(20px, 3vw, 48px);
	padding: clamp(28px, 4vw, 44px) 0;
	border-bottom: 1px solid var(--line);
	position: relative;
	transition: padding-left .3s ease;
}
.ledger__row::before {
	content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 100%;
	transform: scaleY(0); transform-origin: top; transition: transform .3s ease;
}
.ledger__row--logic::before { background: var(--trace); }
.ledger__row--social::before { background: var(--synapse); }
.ledger__row:hover::before { transform: scaleY(1); }
.ledger__row:hover { padding-left: 16px; }

.ledger__desc { margin: 0; color: var(--muted); }
.ledger__list { font-size: .95rem; display: grid; gap: .45rem; align-content: start; }
.ledger__list li { padding-left: 1.1rem; position: relative; }
.ledger__list li::before { content: "—"; position: absolute; left: 0; color: var(--line); }
.ledger__row--logic .ledger__list li::before { color: var(--trace); }
.ledger__row--social .ledger__list li::before { color: var(--synapse); }

/* ─── Proceso: secuencia real, por eso va numerada ─────── */

.process { background: var(--bone); padding-block: var(--section); }
.steps {
	display: grid; grid-template-columns: repeat(4, 1fr);
	gap: clamp(20px, 3vw, 40px);
	position: relative;
}
.steps::before {
	content: ""; position: absolute; left: 0; right: 0; top: 30px; height: 1px;
	background: var(--line);
}
.step { position: relative; padding-top: 72px; }
.step p { margin: 0; color: var(--muted); font-size: .98rem; }
.step__n {
	position: absolute; top: 6px; left: 0;
	width: 48px; height: 48px; display: grid; place-items: center;
	border-radius: 50%; background: var(--bone); border: 1px solid var(--ink);
	font-family: var(--display); font-weight: 800; font-size: 1.5rem; line-height: 1;
}
.step__t {
	font-family: var(--display); font-weight: 700; font-size: 1.8rem; text-transform: uppercase;
	margin: 0 0 .35rem; line-height: 1;
}

/* ─── Herramientas ─────────────────────────────────────── */

.stack { padding-block: var(--section); }
.stack__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 64px); }
.stack__group { padding-top: 20px; border-top: 1px solid var(--line); }
.tools { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 20px; }
.tools li { display: grid; justify-items: center; gap: 10px; font-size: .85rem; color: var(--muted); text-align: center; }
.tools img { width: 36px; height: 36px; }

/* ─── Contacto: eco del héroe ──────────────────────────── */

.contact { display: grid; grid-template-columns: 1fr 1fr; }
.contact__logic { background: var(--cortex); color: rgba(255, 255, 255, .85); }
.contact__social { background: var(--wash); }
.contact__inner {
	padding: var(--section) var(--gutter);
	max-width: calc(var(--wrap) / 2);
	height: 100%;
}
.contact__logic .contact__inner { margin-left: auto; }
.contact__note { margin: 0 0 32px; opacity: .8; }

.notice { padding: 12px 16px; border-radius: var(--r); margin: 0 0 24px; font-size: .95rem; }
.notice--ok { background: rgba(46, 190, 215, .15); color: #BEEFF7; border: 1px solid rgba(46, 190, 215, .4); }
.notice--err { background: rgba(230, 144, 87, .12); color: #FFD9BF; border: 1px solid rgba(230, 144, 87, .4); }
.notice a { color: #fff; }

.form { display: grid; gap: 18px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form__hp { position: absolute; left: -9999px; }
.field { display: grid; gap: 6px; }
.field__l { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--trace-hi); }
.field__i {
	width: 100%; font: inherit; color: #fff;
	background: var(--cortex-2); border: 1px solid rgba(255, 255, 255, .14); border-radius: var(--r);
	padding: 12px 14px;
	transition: border-color .15s ease;
}
.field__i:focus { border-color: var(--trace); outline: none; }
.field__i::placeholder { color: rgba(255, 255, 255, .35); }
select.field__i { appearance: none; background-image: linear-gradient(45deg, transparent 50%, #fff 50%), linear-gradient(135deg, #fff 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px; background-repeat: no-repeat; }
textarea.field__i { resize: vertical; min-height: 120px; }
.form .btn { justify-self: start; margin-top: 6px; }

.wa-card {
	display: grid; gap: 6px; justify-items: start;
	background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
	padding: 24px; text-decoration: none; margin-bottom: 32px;
	transition: border-color .15s ease, transform .15s ease;
}
.wa-card:hover { border-color: #25D366; transform: translateY(-2px); }
.wa-card img { width: 48px; height: 48px; margin-bottom: 8px; }
.wa-card__t { font-family: var(--display); font-weight: 700; font-size: 1.9rem; text-transform: uppercase; line-height: 1; }
.wa-card__s { color: var(--muted); font-size: .95rem; }

.ways { margin: 0; display: grid; gap: 22px; }
.ways dt { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--synapse-ink); margin-bottom: 4px; }
.ways dt img { width: 22px; height: 22px; }
.ways dd { margin: 0; }
.ways dd a { text-decoration-color: var(--synapse); }
.ways__social { display: flex; flex-wrap: wrap; gap: 18px; }
.ways__social a { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 500; }
.ways__social a:hover { color: var(--synapse-ink); }

/* ─── Pie ──────────────────────────────────────────────── */

.foot { background: var(--cortex); color: rgba(255, 255, 255, .7); padding: 40px 0; border-top: 1px solid rgba(255, 255, 255, .08); }
.foot__row { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot__logo { width: 170px; }
.foot__copy { margin: 0; font-size: .9rem; }
.foot__nav { display: flex; gap: 20px; }
.foot__nav a { text-decoration: none; font-size: .9rem; }
.foot__nav a:hover { color: var(--trace-hi); }

/* ─── Revelado al hacer scroll ─────────────────────────── */

.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }

/* ─── Responsive ───────────────────────────────────────── */

@media (max-width: 960px) {
	.ledger__row { grid-template-columns: 1fr 1fr; }
	.ledger__list { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
	.steps { grid-template-columns: 1fr 1fr; row-gap: 40px; }
	.steps::before { display: none; }
	.contact { grid-template-columns: 1fr; }
	.contact__inner { max-width: var(--wrap); margin-inline: auto; }
	.contact__logic .contact__inner { margin-left: auto; }
}

@media (max-width: 760px) {
	.top__burger { display: block; }
	.top__nav {
		display: none; position: absolute; left: 0; right: 0; top: 100%;
		flex-direction: column; align-items: stretch; gap: 0;
		background: var(--paper); border-bottom: 1px solid var(--line);
		padding: 8px var(--gutter) 16px;
	}
	.top__nav.is-open { display: flex; }
	.top__nav > a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--line); }
	.top__nav > .btn { margin-top: 12px; }

	/* Los hemisferios se apilan; la costura pasa a ser horizontal. */
	.hero { min-height: min(100svh, 820px); }
	.hero__bg { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
	.hero__center { padding: 96px 0 56px; }
	.hero__layer--dark { clip-path: inset(0 0 50% 0); }
	.hero__layer--light { clip-path: inset(50% 0 0 0); }
	.hero__title { font-size: clamp(3.2rem, 15vw, 5.5rem); }
	.hemi__label--logic { top: 20px; }
	.hemi__label--social { top: auto; bottom: 20px; }
	.circuit { transform: scale(1.15); transform-origin: right center; }

	.ledger__row { grid-template-columns: 1fr; gap: 16px; }
	.ledger__list { grid-template-columns: 1fr; }
	.ledger__row:hover { padding-left: 12px; }
	.stack__grid { grid-template-columns: 1fr; }
	.form__row { grid-template-columns: 1fr; }
	.foot__row { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
	.steps { grid-template-columns: 1fr; }
	.tools { grid-template-columns: repeat(4, 1fr); gap: 8px; }
	.tools li { font-size: .75rem; }
}

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.circuit__traces path, .circuit__traces rect { animation: none; stroke-dashoffset: 0; }
	.circuit__pads, .dots { animation: none; opacity: 1; }
	.blob { animation: none; }
	.js .reveal { opacity: 1; transform: none; transition: none; }
	.btn, .wa-card, .ledger__row, .ledger__row::before { transition: none; }
}