/* =====================================================================
   ZULÚ VIDRIOS — styles.css
   Sistema visual: arquitectónico, sobrio, mucho aire.
   Paleta: blanco, gris claro, grafito y acento azul petróleo.
   Tipografía: Sora (titulares) + Manrope (cuerpo), Google Fonts, display=swap.
   ===================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* Color */
  --c-white: #ffffff;
  --c-gray-50: #f5f6f7;      /* fondos alternos */
  --c-gray-100: #eceef0;     /* fondos de tarjeta */
  --c-gray-200: #d9dde0;     /* líneas finas / perfilería */
  --c-gray-500: #5f686e;     /* texto secundario (5.7:1 sobre blanco) */
  --c-graphite: #24282b;     /* texto principal / fondos oscuros */
  --c-graphite-900: #16191b; /* footer */
  --c-petrol: #1f5f6b;       /* acento azul petróleo (7.3:1 sobre blanco) */
  --c-petrol-dark: #174a54;  /* hover */
  --c-petrol-soft: #e4eef0;  /* fondo tenue del acento */
  --c-success: #2f7a4f;
  --c-error: #b3261e;

  /* Tipografía */
  --f-display: "Sora", "Manrope", system-ui, sans-serif;
  --f-body: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-md: 1.0625rem;
  --fs-lg: 1.25rem;
  --fs-xl: clamp(1.5rem, 1.2rem + 1.4vw, 2rem);
  --fs-2xl: clamp(1.9rem, 1.4rem + 2.2vw, 2.75rem);
  --fs-hero: clamp(2.1rem, 1.3rem + 4vw, 4.25rem);

  /* Espaciado y retícula */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6.5rem;
  --container: 1200px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --header-h: 72px;

  /* Detalles */
  --radius: 2px;
  --line: 1px solid var(--c-gray-200);
  --shadow: 0 10px 30px rgba(36, 40, 43, 0.08);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- 2. Reset y base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--f-body);
  font-size: var(--fs-md);
  line-height: 1.6;
  color: var(--c-graphite);
  background: var(--c-white);
  overflow-x: hidden;
}
img, picture, video { display: block; max-width: 100%; height: auto; }
img { background: var(--c-gray-100); color: var(--c-gray-500); font-size: var(--fs-xs); }
h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-2);
  text-wrap: balance;
}
h1 { font-size: var(--fs-2xl); }
h2 { font-size: var(--fs-xl); }
h3 { font-size: var(--fs-lg); }
p { margin: 0 0 var(--space-2); max-width: 65ch; }
p:last-child { margin-bottom: 0; }
a { color: var(--c-petrol); text-decoration: none; }
a:hover { color: var(--c-petrol-dark); }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
address { font-style: normal; }
:focus-visible { outline: 2px solid var(--c-petrol); outline-offset: 3px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: var(--space-2); top: -100px;
  background: var(--c-graphite); color: var(--c-white);
  padding: 0.6rem 1rem; z-index: 1000; border-radius: var(--radius);
}
.skip-link:focus { top: var(--space-2); color: var(--c-white); }

/* ---------- 3. Utilidades de layout ---------- */
.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.section { padding-block: var(--space-6); }
.section--tight { padding-block: var(--space-5); }
.section--alt { background: var(--c-gray-50); }
.section--dark { background: var(--c-graphite); color: var(--c-white); }
.section--dark h2, .section--dark h3 { color: var(--c-white); }
.section--dark .eyebrow { color: #9fd1da; }
.section__head { max-width: 46rem; margin-bottom: var(--space-5); }
.section__head--center { margin-inline: auto; text-align: center; }
.section__head--center p { margin-inline: auto; }
.eyebrow {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-petrol);
  margin-bottom: var(--space-2);
}
.eyebrow::before {
  content: ""; display: inline-block; width: 1.5rem; height: 1px;
  background: currentColor; vertical-align: middle; margin-right: 0.6rem;
}
.lead { font-size: var(--fs-lg); color: var(--c-gray-500); line-height: 1.55; }
.section--dark .lead { color: #c9ced1; }
.muted { color: var(--c-gray-500); }
.grid { display: grid; gap: var(--space-3); }
.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }
@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}
.hairline { border: 0; border-top: var(--line); margin: 0; }

/* ---------- 4. Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
  min-height: 48px; padding: 0.75rem 1.5rem;
  font-family: var(--f-display); font-weight: 600; font-size: var(--fs-sm);
  letter-spacing: 0.02em; border-radius: var(--radius); border: 1px solid transparent;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, transform 0.2s var(--ease);
  text-align: center;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn--primary { background: var(--c-petrol); color: var(--c-white); }
.btn--primary:hover { background: var(--c-petrol-dark); color: var(--c-white); transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--c-graphite); border-color: var(--c-graphite); }
.btn--ghost:hover { background: var(--c-graphite); color: var(--c-white); }
.btn--light { background: var(--c-white); color: var(--c-graphite); }
.btn--light:hover { background: var(--c-gray-100); color: var(--c-graphite); }
.btn--outline-light { background: transparent; color: var(--c-white); border-color: rgba(255,255,255,0.7); }
.btn--outline-light:hover { background: var(--c-white); color: var(--c-graphite); }
.btn--sm { min-height: 40px; padding: 0.5rem 1.1rem; font-size: var(--fs-xs); }
.btn-group { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.link-arrow {
  display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 600;
  font-family: var(--f-display); font-size: var(--fs-sm);
}
.link-arrow::after { content: "→"; transition: transform 0.2s var(--ease); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---------- 5. Header ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.86);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background-color 0.3s;
}
.header.is-scrolled { border-bottom-color: var(--c-gray-200); background: rgba(255,255,255,0.94); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: var(--space-2); }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--c-graphite); }
.brand:hover { color: var(--c-graphite); }
.brand__mark { width: 30px; height: 30px; flex: none; }
.brand__name { font-family: var(--f-display); font-weight: 600; font-size: 1.05rem; letter-spacing: 0.12em; text-transform: uppercase; }
.brand__name small { display: block; font-size: 0.6rem; letter-spacing: 0.3em; color: var(--c-gray-500); font-weight: 500; }
.nav { display: none; }
.nav__list { display: flex; gap: var(--space-3); align-items: center; }
.nav__link { font-size: var(--fs-sm); font-weight: 500; color: var(--c-graphite); padding: 0.4rem 0; position: relative; }
.nav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--c-petrol); transform: scaleX(0); transform-origin: left; transition: transform 0.25s var(--ease);
}
.nav__link:hover::after, .nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--c-petrol); }
.header__actions { display: flex; align-items: center; gap: var(--space-1); }
.header__cta { display: none; }
.header__cta--mobile { display: inline-flex; }
.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; background: transparent; border: 0; color: var(--c-graphite);
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  display: block; width: 22px; height: 2px; background: currentColor; position: relative; transition: transform 0.25s var(--ease), opacity 0.2s;
}
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-7px) rotate(-45deg); }
@media (min-width: 1024px) {
  .nav { display: block; }
  .nav-toggle, .header__cta--mobile { display: none; }
  .header__cta { display: inline-flex; }
}
/* Menú móvil */
.mobile-nav {
  position: fixed; inset: var(--header-h) 0 0 0; z-index: 99;
  background: var(--c-white); padding: var(--space-4) var(--gutter);
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: opacity 0.25s, transform 0.25s var(--ease), visibility 0.25s;
  overflow-y: auto;
}
.mobile-nav.is-open { transform: none; opacity: 1; visibility: visible; }
.mobile-nav__list li { border-bottom: var(--line); }
.mobile-nav__list a { display: block; padding: 1rem 0; font-family: var(--f-display); font-size: 1.15rem; color: var(--c-graphite); }
.mobile-nav__list a[aria-current="page"] { color: var(--c-petrol); }
.mobile-nav .btn { margin-top: var(--space-3); width: 100%; }
body.nav-open { overflow: hidden; }
@media (min-width: 1024px) { .mobile-nav { display: none; } }

/* ---------- 6. Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: flex-end;
  color: var(--c-white); padding-top: var(--header-h); isolation: isolate;
}
.hero--short { min-height: 68svh; }
.hero__media { position: absolute; inset: 0; z-index: -2; overflow: hidden; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(22,25,27,0.15) 0%, rgba(22,25,27,0.35) 45%, rgba(22,25,27,0.78) 100%);
}
.hero__content { padding-block: var(--space-6) var(--space-6); max-width: 52rem; }
.hero .eyebrow { color: #cfe6ea; }
.hero__title { font-size: var(--fs-hero); color: var(--c-white); margin-bottom: var(--space-3); font-weight: 600; }
.hero__title .hero__sub {
  display: block; font-family: var(--f-body); font-weight: 400; font-size: clamp(1rem, 0.9rem + 0.6vw, 1.3rem);
  letter-spacing: 0; margin-top: var(--space-2); color: #e4e9eb; line-height: 1.5;
}
.hero__lead { color: #e4e9eb; font-size: var(--fs-md); margin-bottom: var(--space-4); max-width: 44rem; }
.hero__scroll {
  position: absolute; right: var(--gutter); bottom: var(--space-4);
  display: none; width: 1px; height: 64px; background: rgba(255,255,255,0.5);
}
@media (min-width: 768px) { .hero__scroll { display: block; } }

/* Hero interior con imagen lateral (páginas de línea) */
.page-hero { padding-top: calc(var(--header-h) + var(--space-5)); padding-bottom: var(--space-5); }
.page-hero__grid { display: grid; gap: var(--space-4); align-items: end; }
@media (min-width: 1024px) { .page-hero__grid { grid-template-columns: 1.1fr 0.9fr; gap: var(--space-6); } }
.page-hero__media { aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); }
.page-hero__media img { width: 100%; height: 100%; object-fit: cover; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 0.4rem; font-size: var(--fs-xs); color: var(--c-gray-500); margin-bottom: var(--space-3); }
.breadcrumb a { color: var(--c-gray-500); }
.breadcrumb a:hover { color: var(--c-petrol); }
.breadcrumb li + li::before { content: "/"; margin-right: 0.4rem; color: var(--c-gray-200); }

/* ---------- 7. Tarjetas de línea ---------- */
.line-card {
  position: relative; display: block; overflow: hidden; color: var(--c-white);
  aspect-ratio: 3 / 4; border-radius: var(--radius); background: var(--c-graphite);
}
.line-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease); }
.line-card:hover img { transform: scale(1.04); }
.line-card::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(22,25,27,0) 35%, rgba(22,25,27,0.85) 100%);
}
.line-card__body { position: absolute; inset: auto 0 0 0; padding: var(--space-3); z-index: 1; }
.line-card__body h3 { color: var(--c-white); font-size: 1.35rem; margin-bottom: 0.35rem; }
.line-card__body p { color: #d6dbde; font-size: var(--fs-sm); margin-bottom: var(--space-2); }
.line-card__body .link-arrow { color: var(--c-white); }
.line-card__index { position: absolute; top: var(--space-3); left: var(--space-3); z-index: 1; font-family: var(--f-display); font-size: var(--fs-xs); letter-spacing: 0.2em; color: var(--c-white); text-shadow: 0 1px 8px rgba(0,0,0,0.45); }
@media (min-width: 768px) { .line-card { aspect-ratio: 4 / 5; } }

/* ---------- 8. Quiénes somos (split) ---------- */
.split { display: grid; gap: var(--space-4); align-items: center; }
.split__media { aspect-ratio: 4 / 5; overflow: hidden; border-radius: var(--radius); position: relative; }
.split__media img { width: 100%; height: 100%; object-fit: cover; }
.split__media::before {
  /* línea fina tipo perfilería */
  content: ""; position: absolute; inset: 1rem; border: 1px solid rgba(255,255,255,0.55); pointer-events: none; z-index: 1;
}
.split__body ul { display: grid; gap: 0.6rem; margin-top: var(--space-3); }
.split__body li { display: flex; gap: 0.6rem; align-items: flex-start; font-size: var(--fs-sm); }
.split__body li::before { content: ""; flex: none; width: 10px; height: 1px; background: var(--c-petrol); margin-top: 0.75rem; }
@media (min-width: 900px) {
  .split { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
  .split--reverse .split__media { order: 2; }
}

/* ---------- 9. Proceso (timeline) ---------- */
.process { display: grid; gap: var(--space-3); position: relative; counter-reset: step; }
.process__step { position: relative; padding-left: 3.25rem; }
.process__step::before {
  content: ""; position: absolute; left: 0.95rem; top: 2.2rem; bottom: -1.5rem; width: 1px; background: var(--c-gray-200);
}
.process__step:last-child::before { display: none; }
.process__num {
  position: absolute; left: 0; top: 0; width: 2rem; height: 2rem; display: grid; place-items: center;
  border: 1px solid var(--c-petrol); color: var(--c-petrol); font-family: var(--f-display); font-size: var(--fs-xs); font-weight: 600;
  background: var(--c-white); border-radius: 50%;
}
.process__step h3 { font-size: 1.1rem; margin-bottom: 0.35rem; }
.process__step p { font-size: var(--fs-sm); color: var(--c-gray-500); }
@media (min-width: 900px) {
  .process { grid-template-columns: repeat(5, 1fr); gap: var(--space-3); }
  .process__step { padding-left: 0; padding-top: 3.25rem; }
  .process__step::before { left: 2.5rem; right: -1.5rem; top: 1rem; bottom: auto; height: 1px; width: auto; }
}

/* ---------- 10. Diferenciadores ---------- */
.feature { padding: var(--space-3); border: var(--line); border-radius: var(--radius); background: var(--c-white); transition: border-color 0.25s, transform 0.3s var(--ease); }
.feature:hover { border-color: var(--c-petrol); transform: translateY(-2px); }
.feature__icon { width: 36px; height: 36px; color: var(--c-petrol); margin-bottom: var(--space-2); }
.feature__icon svg { width: 100%; height: 100%; }
.feature h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }
.feature p { font-size: var(--fs-sm); color: var(--c-gray-500); }

/* ---------- 11. Galería ---------- */
.gallery { display: grid; gap: var(--space-2); }
.gallery__item { position: relative; display: block; overflow: hidden; border-radius: var(--radius); background: var(--c-gray-100); }
.gallery__item img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; transition: transform 0.8s var(--ease); }
.gallery__item:hover img { transform: scale(1.03); }
.gallery__caption {
  position: absolute; inset: auto 0 0 0; padding: var(--space-2) var(--space-3);
  background: linear-gradient(180deg, rgba(22,25,27,0) 0%, rgba(22,25,27,0.8) 100%);
  color: var(--c-white); font-size: var(--fs-sm);
}
.gallery__caption strong { display: block; font-family: var(--f-display); font-weight: 600; }
.gallery__caption span { color: #d6dbde; font-size: var(--fs-xs); }
.gallery--featured .gallery__item--main img { aspect-ratio: 16 / 10; }
@media (min-width: 768px) {
  .gallery--featured { grid-template-columns: repeat(3, 1fr); }
  .gallery--featured .gallery__item--main { grid-column: 1 / -1; }
  .gallery--featured .gallery__item--main img { aspect-ratio: 21 / 9; }
  .gallery--grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) { .gallery--grid { grid-template-columns: repeat(3, 1fr); } }

/* Lightbox */
.lightbox { border: 0; padding: 0; background: transparent; max-width: min(96vw, 1400px); max-height: 92vh; }
.lightbox::backdrop { background: rgba(22,25,27,0.92); }
.lightbox__img { max-width: 96vw; max-height: 82vh; width: auto; height: auto; object-fit: contain; margin-inline: auto; background: transparent; }
.lightbox__caption { color: #d6dbde; text-align: center; padding: var(--space-2); font-size: var(--fs-sm); }
.lightbox__close {
  position: fixed; top: 1rem; right: 1rem; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.4);
  background: rgba(22,25,27,0.6); color: var(--c-white); font-size: 1.4rem; line-height: 1;
}
.lightbox__nav {
  position: fixed; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.4); background: rgba(22,25,27,0.6); color: var(--c-white); font-size: 1.3rem;
}
.lightbox__nav--prev { left: 0.75rem; }
.lightbox__nav--next { right: 0.75rem; }

/* ---------- 12. Cita / frase secundaria ---------- */
.quote-band { position: relative; text-align: center; padding-block: var(--space-7); overflow: hidden; }
.quote-band__media { position: absolute; inset: 0; z-index: -2; }
.quote-band__media img { width: 100%; height: 100%; object-fit: cover; }
.quote-band::after { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(22,25,27,0.62); }
.quote-band blockquote { margin: 0 auto; max-width: 40rem; color: var(--c-white); }
.quote-band blockquote p { font-family: var(--f-display); font-size: var(--fs-2xl); font-weight: 600; line-height: 1.2; margin: 0 auto var(--space-3); }
.quote-band blockquote footer { color: #d6dbde; font-size: var(--fs-sm); letter-spacing: 0.12em; text-transform: uppercase; }

/* ---------- 13. FAQ ---------- */
.faq { max-width: 52rem; margin-inline: auto; border-top: var(--line); }
.faq details { border-bottom: var(--line); }
.faq summary {
  display: flex; justify-content: space-between; align-items: center; gap: var(--space-2);
  padding: 1.1rem 0; cursor: pointer; list-style: none;
  font-family: var(--f-display); font-weight: 600; font-size: 1.02rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; flex: none; width: 28px; height: 28px; display: grid; place-items: center;
  border: 1px solid var(--c-gray-200); border-radius: 50%; color: var(--c-petrol); font-weight: 400; transition: transform 0.25s var(--ease);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > div { padding: 0 0 1.25rem; color: var(--c-gray-500); font-size: var(--fs-sm); }
.faq details > div p { max-width: 60ch; }

/* ---------- 14. CTA final ---------- */
.cta-final { text-align: center; }
.cta-final h2 { font-size: var(--fs-2xl); max-width: 22ch; margin-inline: auto; }
.cta-final p { margin-inline: auto; }
.cta-final .btn-group { justify-content: center; margin-top: var(--space-4); }

/* ---------- 15. Bloques de producto (páginas de línea) ---------- */
.product { scroll-margin-top: calc(var(--header-h) + 1rem); padding-block: var(--space-5); border-top: var(--line); }
.product:first-of-type { border-top: 0; }
.product__grid { display: grid; gap: var(--space-4); align-items: center; }
.product__media { aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); position: relative; }
.product__media img { width: 100%; height: 100%; object-fit: cover; }
.product__media::before { content: ""; position: absolute; inset: 0.85rem; border: 1px solid rgba(255,255,255,0.5); z-index: 1; pointer-events: none; }
.product__body h2 { margin-bottom: var(--space-2); }
.product__benefit { font-family: var(--f-display); font-weight: 600; color: var(--c-petrol); font-size: var(--fs-md); margin-bottom: var(--space-2); }
.product__uses { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: var(--space-3) 0; }
.product__uses li { font-size: var(--fs-xs); padding: 0.35rem 0.7rem; border: var(--line); border-radius: 999px; color: var(--c-gray-500); }
@media (min-width: 900px) {
  .product__grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
  .product--reverse .product__media { order: 2; }
}
/* Subnavegación de anclas */
.subnav { position: sticky; top: var(--header-h); z-index: 50; background: rgba(255,255,255,0.94); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-block: var(--line); }
.subnav ul { display: flex; gap: var(--space-3); overflow-x: auto; padding-block: 0.8rem; scrollbar-width: none; }
.subnav ul::-webkit-scrollbar { display: none; }
.subnav a { white-space: nowrap; font-size: var(--fs-sm); font-weight: 500; color: var(--c-gray-500); }
.subnav a:hover { color: var(--c-petrol); }

/* ---------- 16. Lista de valores / nosotros ---------- */
.values { display: grid; gap: var(--space-3); }
.value { padding-top: var(--space-2); border-top: 1px solid var(--c-graphite); }
.value h3 { font-size: 1.1rem; }
.value p { font-size: var(--fs-sm); color: var(--c-gray-500); }
.section--dark .value { border-top-color: rgba(255,255,255,0.3); }
.section--dark .value p { color: #c9ced1; }
@media (min-width: 768px) { .values { grid-template-columns: repeat(3, 1fr); } }
.stat-placeholder { display: none; } /* PENDIENTE CLIENTE: cifras reales; se activará cuando existan */

/* ---------- 17. Formulario ---------- */
.contact-grid { display: grid; gap: var(--space-5); }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 1.1fr 0.9fr; gap: var(--space-6); } }
.form { display: grid; gap: var(--space-3); }
.form__row { display: grid; gap: var(--space-3); }
@media (min-width: 640px) { .form__row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 0.4rem; }
.field label { font-size: var(--fs-sm); font-weight: 600; }
.field label small { font-weight: 400; color: var(--c-gray-500); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--c-graphite);
  padding: 0.75rem 0.9rem; border: 1px solid var(--c-gray-200); border-radius: var(--radius); background: var(--c-white);
  transition: border-color 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--c-petrol); outline: none; box-shadow: 0 0 0 3px var(--c-petrol-soft); }
.field textarea { min-height: 120px; resize: vertical; }
.field input[type="file"] { padding: 0.55rem; font-size: var(--fs-sm); }
.field__error { display: none; font-size: var(--fs-xs); color: var(--c-error); }
.field.is-invalid input, .field.is-invalid select, .field.is-invalid textarea { border-color: var(--c-error); }
.field.is-invalid .field__error { display: block; }
.form__note { font-size: var(--fs-xs); color: var(--c-gray-500); }
.form__status { display: none; padding: var(--space-2) var(--space-3); border-radius: var(--radius); font-size: var(--fs-sm); }
.form__status.is-success { display: block; background: #e8f3ec; color: var(--c-success); }
.form__status.is-error { display: block; background: #fbeae9; color: var(--c-error); }
.contact-card { padding: var(--space-4); background: var(--c-gray-50); border-radius: var(--radius); }
.contact-card h2 { font-size: var(--fs-lg); }
.contact-list { display: grid; gap: var(--space-2); margin-top: var(--space-3); }
.contact-list li { display: flex; gap: 0.8rem; align-items: flex-start; font-size: var(--fs-sm); }
.contact-list svg { width: 20px; height: 20px; flex: none; color: var(--c-petrol); margin-top: 0.15rem; }
.contact-list a { color: var(--c-graphite); }
.contact-list a:hover { color: var(--c-petrol); }
.contact-list small { display: block; color: var(--c-gray-500); }
.steps-after { display: grid; gap: var(--space-2); margin-top: var(--space-3); counter-reset: after; }
.steps-after li { display: flex; gap: 0.8rem; font-size: var(--fs-sm); counter-increment: after; }
.steps-after li::before { content: "0" counter(after); font-family: var(--f-display); font-weight: 600; color: var(--c-petrol); flex: none; }

/* ---------- 18. Footer ---------- */
.footer { background: var(--c-graphite-900); color: #c9ced1; padding-block: var(--space-6) var(--space-4); font-size: var(--fs-sm); }
.footer a { color: #c9ced1; }
.footer a:hover { color: var(--c-white); }
.footer__grid { display: grid; gap: var(--space-4); }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer .brand { color: var(--c-white); }
.footer .brand__name small { color: #8d959a; }
.footer__tagline { font-family: var(--f-display); color: var(--c-white); font-size: var(--fs-lg); margin: var(--space-2) 0; max-width: 20ch; }
.footer h3 { color: var(--c-white); font-size: var(--fs-xs); letter-spacing: 0.16em; text-transform: uppercase; margin-bottom: var(--space-2); }
.footer ul { display: grid; gap: 0.5rem; }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); border-top: 1px solid rgba(255,255,255,0.12); margin-top: var(--space-5); padding-top: var(--space-3); font-size: var(--fs-xs); color: #8d959a; }

/* ---------- 19. Botón flotante de WhatsApp ---------- */
.wa-float {
  position: fixed; right: 1rem; bottom: 1rem; z-index: 90;
  display: inline-flex; align-items: center; gap: 0.6rem;
  background: #25d366; color: var(--c-white); padding: 0.8rem 1rem; border-radius: 999px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.18); font-family: var(--f-display); font-weight: 600; font-size: var(--fs-sm);
  transition: transform 0.25s var(--ease), box-shadow 0.25s;
}
.wa-float:hover { color: var(--c-white); transform: translateY(-2px); box-shadow: 0 14px 28px rgba(0,0,0,0.22); }
.wa-float svg { width: 24px; height: 24px; }
.wa-float span { display: none; }
@media (min-width: 768px) { .wa-float span { display: inline; } .wa-float { right: 1.5rem; bottom: 1.5rem; } }

/* ---------- 20. Animaciones de aparición ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .line-card:hover img, .gallery__item:hover img { transform: none; }
}
/* Sin JS, todo visible */
.no-js .reveal { opacity: 1; transform: none; }