/* Fuente base */
:root {
	--bg: #0b0b0b;
	--fg: #f7f7f7;
	--muted: #bdbdbd;
	--accent: #ffffff;
	--elev: #151515;
	--line: #222;
	--ok: #2ecc71;
	--warn: #f1c40f;
	--err: #e74c3c;
	/* Superficies claras editables */
	--surface: #f6f3ee; /* crema base */
	--surface-2: #f1eee8; /* variante */
	--ink: #121212; /* texto en claro */
	--muted-ink: #6a6a6a; /* texto secundario en claro */
	--line-light: #e6e2da; /* borde en claro */
	--elev-light: #ffffff; /* tarjetas claras si se usan */
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
	margin: 0;
	font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji", "Segoe UI Emoji";
	background: var(--bg);
	color: var(--fg);
	line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
	width: min(1120px, 90%);
	margin: 0 auto;
}

/* Header */
.site-header {
	position: sticky;
	top: 0;
	background: rgba(11,11,11,0.85);
	backdrop-filter: saturate(140%) blur(8px);
	border-bottom: 1px solid var(--line);
	z-index: 50;
}
.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 12px 0;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-text { font-weight: 700; letter-spacing: .4px; }
.logo { filter: drop-shadow(0 2px 6px rgba(0,0,0,.35)); }

.site-nav ul { display: flex; gap: 22px; align-items: center; list-style: none; margin: 0; padding: 0; }
.site-nav a { opacity: .9; }
.site-nav a:hover { opacity: 1; }

.nav-toggle { display: none; background: none; border: 0; padding: 6px; cursor: pointer; }
.nav-toggle-bar { display: block; width: 24px; height: 2px; background: var(--fg); margin: 5px 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 16px; border-radius: 8px; border: 1px solid var(--line); }
.btn-primary { background: var(--accent); color: #000; border-color: var(--accent); }
.btn-ghost { background: transparent; color: var(--fg); }
.btn:hover { transform: translateY(-1px); }

/* Hero */
.hero { position: relative; }
.hero-carousel { position: relative; overflow: hidden; height: clamp(480px, 72vh, 720px); }
.hero-slide {
	position: absolute; inset: 0; opacity: 0; transition: opacity .7s ease;
	background: center/cover no-repeat #000;
	background-image: var(--slide);
}
.hero-slide::before {
	content: ""; position: absolute; inset: 0;
	background: linear-gradient(180deg, rgba(0,0,0,.65), rgba(0,0,0,.55));
}
.hero-slide.is-active { opacity: 1; }
.hero-content { position: relative; z-index: 1; height: 100%; display: grid; align-content: center; gap: 16px; }
.hero-title { font-size: clamp(28px, 5vw, 56px); margin: 0; }
.hero-sub { color: var(--muted); margin: 0 0 6px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,.1); border: 1px solid var(--line); color: var(--fg); width: 40px; height: 40px; border-radius: 50%; cursor: pointer; }
.carousel-btn:hover { background: rgba(255,255,255,.16); }
.carousel-btn.prev { left: 16px; }
.carousel-btn.next { right: 16px; }
.carousel-dots { position: absolute; left: 0; right: 0; bottom: 16px; display: flex; gap: 8px; justify-content: center; z-index: 2; }
.carousel-dots button { width: 8px; height: 8px; border-radius: 999px; background: rgba(255,255,255,.35); border: 0; cursor: pointer; }
.carousel-dots button[aria-current="true"] { background: var(--accent); }

/* Sections */
.section { padding: clamp(48px, 8vw, 96px) 0; background: var(--surface); color: var(--ink); }
.section-title { font-size: clamp(22px, 3.2vw, 36px); margin: 0 0 24px; }
.grid-2 { display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: start; }
.card-highlight { background: var(--elev-light); border: 1px solid var(--line-light); padding: 20px; border-radius: 12px; }

.list-check { list-style: none; padding: 0; margin: 16px 0 0; }
.list-check li { position: relative; padding-left: 22px; margin: 8px 0; }
.list-check li::before { content: "✓"; position: absolute; left: 0; color: var(--ink); }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { background: var(--elev-light); border: 1px solid var(--line-light); border-radius: 12px; padding: 18px; }
.card .icon { opacity: .9; }
.card h4 { margin: 10px 0 6px; color: var(--ink); }
.card p { color: var(--muted-ink); margin: 0; }

.plans .plan-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.plan { background: var(--elev-light); border: 1px solid var(--line-light); border-radius: 12px; padding: 18px; }
.plan h4 { margin: 10px 0 6px; color: var(--ink); }
.plan ul { margin: 10px 0 0; padding-left: 18px; color: var(--muted-ink); }

.faq .faq-list { display: grid; gap: 10px; }
.faq-item { background: var(--elev-light); border: 1px solid var(--line-light); border-radius: 12px; }
.faq-question { width: 100%; text-align: left; background: transparent; color: var(--ink); border: 0; padding: 14px 16px; cursor: pointer; }
.faq-answer { padding: 0 16px 14px; color: var(--muted-ink); }

.contact .contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; align-items: start; }
.contact-info p { margin: 6px 0; color: var(--muted-ink); }
.form-row { display: grid; gap: 6px; margin-bottom: 12px; }
.form-row input, .form-row textarea { background: #ffffff; border: 1px solid var(--line-light); border-radius: 10px; padding: 10px 12px; color: var(--ink); }
.form-row input:focus, .form-row textarea:focus { outline: 2px solid #000; outline-offset: 0; }
.error { color: var(--err); min-height: 16px; }
.form-actions { display: flex; align-items: center; gap: 12px; }
.form-result { margin: 0; color: var(--ok); }

/* Alternancias de tema por sección */
.section--dark { background: var(--bg); color: var(--fg); }
.section--dark .section-title { color: var(--fg); }
.section--dark .card-highlight { background: var(--elev); border-color: var(--line); }
.section--dark .card { background: var(--elev); border-color: var(--line); }
.section--dark .card h4 { color: var(--fg); }
.section--dark .card p { color: var(--muted); }
.section--dark .plan { background: var(--elev); border-color: var(--line); }
.section--dark .plan h4 { color: var(--fg); }
.section--dark .plan ul { color: var(--muted); }
.section--dark .faq-item { background: var(--elev); border-color: var(--line); }
.section--dark .faq-question { color: var(--fg); }
.section--dark .faq-answer { color: var(--muted); }
.section--dark .list-check li::before { color: var(--accent); }
.section--dark .contact-info p { color: var(--muted); }
.section--dark .form-row input, .section--dark .form-row textarea { background: #0e0e0e; border-color: var(--line); color: var(--fg); }
.section--dark .form-row input:focus, .section--dark .form-row textarea:focus { outline-color: var(--accent); }

/* CTA banner */
.section.cta { position: relative; overflow: hidden; }
.section.cta::before { content: ""; position: absolute; inset: 0; background: center/cover no-repeat var(--cta, none); opacity: .28; }
.section.cta .container { position: relative; }
.cta .cta-content { display: grid; gap: 10px; }
.cta .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 24px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.copy { color: var(--muted-ink); margin: 0; }

/* Responsive */
@media (max-width: 960px) {
	.grid-2 { grid-template-columns: 1fr; }
	.cards { grid-template-columns: repeat(2, 1fr); }
	.plans .plan-cards { grid-template-columns: repeat(2, 1fr); }
	.contact .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
	.site-nav { position: fixed; inset: 56px 0 auto 0; background: rgba(11,11,11,.95); transform: translateY(-20px); opacity: 0; pointer-events: none; transition: .25s ease; border-bottom: 1px solid var(--line); }
	.site-nav ul { flex-direction: column; gap: 0; padding: 8px 0; }
	.site-nav li { width: 100%; }
	.site-nav a { display: block; padding: 12px 20px; }
	.site-nav.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
	.nav-toggle { display: inline-block; }
	.cards { grid-template-columns: 1fr; }
	.plans .plan-cards { grid-template-columns: 1fr; }
}