/* ==========================================================================
   Hesa Design — hoja de estilos
   Paleta: crema + carbón + madera. Tipografías: Fraunces (títulos) / Inter.
   ========================================================================== */

:root {
  --bg: #faf7f2;
  --bg-alt: #f1ebe2;
  --ink: #23201c;
  --ink-soft: #5c554b;
  --line: #e3dbcd;
  --accent: #a9743f;
  --accent-dark: #8a5c2f;
  --dark: #1d1a16;
  --dark-soft: #2a2620;
  --white: #fffdfa;
  --ok: #2e6b3f;
  --error: #a33c2e;
  --radius: 14px;
  --shadow: 0 18px 45px -18px rgba(35, 32, 28, .28);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, "Segoe UI", sans-serif;
  --container: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  margin: 0 0 .5em;
  letter-spacing: -.01em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

a { color: var(--accent-dark); text-decoration: none; }
a:hover { color: var(--accent); }

.container {
  width: min(var(--container), 100% - 2.5rem);
  margin-inline: auto;
}

.visually-hidden,
.skip-link:not(:focus) {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link:focus {
  position: fixed; top: 1rem; left: 1rem; z-index: 200;
  background: var(--ink); color: var(--white);
  padding: .6rem 1rem; border-radius: 8px;
}

/* --- Botones y links --------------------------------------------------- */

.btn {
  display: inline-block;
  background: var(--ink);
  color: var(--white);
  font-weight: 600;
  font-size: .95rem;
  padding: .85rem 1.7rem;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s, transform .15s;
}

.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: var(--white); transform: translateY(-1px); }

.btn-ghost { background: transparent; color: var(--white); border-color: rgba(255, 253, 250, .7); }
.btn-ghost:hover { background: var(--white); border-color: var(--white); color: var(--ink); }

.btn-light { background: var(--white); border-color: var(--white); color: var(--ink); }
.btn-light:hover { background: var(--accent); border-color: var(--accent); color: var(--white); }

.btn-small { padding: .55rem 1.2rem; font-size: .875rem; }

.btn-whatsapp { background: #1faa53; border-color: #1faa53; width: 100%; text-align: center; margin-top: 1.4rem; }
.btn-whatsapp:hover { background: #178a43; border-color: #178a43; }

.text-link {
  display: inline-block;
  font-weight: 600;
  font-size: .95rem;
  color: var(--accent-dark);
  border-bottom: 1.5px solid transparent;
  transition: border-color .2s;
}
.text-link:hover { border-color: var(--accent-dark); }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .78rem;
  font-weight: 600;
  color: var(--accent-dark);
  margin-bottom: 1rem;
}

/* --- Header ------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 247, 242, .88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s;
}

.site-header.is-scrolled { border-color: var(--line); box-shadow: 0 8px 30px -20px rgba(35, 32, 28, .35); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1rem;
}

.brand img { height: 34px; width: auto; }

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0; padding: 0;
}

.site-nav a:not(.btn) {
  font-weight: 500;
  font-size: .97rem;
  color: var(--ink);
  padding-block: .3rem;
  border-bottom: 2px solid transparent;
  transition: border-color .2s, color .2s;
}

.site-nav a:not(.btn):hover { color: var(--accent-dark); }
.site-nav a.is-active { border-color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: .5rem;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .25s, opacity .2s;
}

/* --- Hero ---------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: min(92vh, 860px);
  display: flex;
  align-items: flex-end;
  color: var(--white);
  overflow: hidden;
}

.hero-media, .hero-media img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(29, 26, 22, .1) 0%, rgba(29, 26, 22, .45) 55%, rgba(29, 26, 22, .82) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: 5.5rem 4.5rem;
}

.hero-content .eyebrow { color: #e8c9a4; }

.hero h1 { max-width: 14ch; margin-bottom: .4em; }

.hero-lead {
  max-width: 46ch;
  font-size: 1.15rem;
  color: rgba(255, 253, 250, .88);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.8rem; }

/* --- Marquee de clientes -------------------------------------------------- */

.marquee {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--white);
  padding-block: 1.1rem;
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  width: max-content;
  animation: marquee 36s linear infinite;
}

.marquee-track span {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink-soft);
  white-space: nowrap;
}

.marquee-dot { color: var(--accent); }

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* --- Secciones ------------------------------------------------------------ */

.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section-alt { background: var(--bg-alt); }
.section-flush { padding-top: 0; }

.section-head { max-width: 640px; margin-bottom: clamp(2rem, 5vw, 3.5rem); }

.section-head-row {
  max-width: none;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

/* --- Split (texto + imagen) ------------------------------------------------ */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.split-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3.2;
  object-fit: cover;
  width: 100%;
}

.split-body p { color: var(--ink-soft); }

/* --- Tarjetas de categoría -------------------------------------------------- */

.cards-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.6rem;
}

.cat-card {
  display: block;
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: transform .25s, box-shadow .25s;
}

.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); color: var(--ink); }

.cat-card img {
  aspect-ratio: 16 / 10;
  width: 100%;
  object-fit: cover;
  transition: transform .4s;
}

.cat-card:hover img { transform: scale(1.04); }

.cat-card-body { padding: 1.4rem 1.5rem 1.6rem; }
.cat-card-body p { color: var(--ink-soft); font-size: .95rem; margin-bottom: .9rem; }

/* --- Grilla de proyectos ------------------------------------------------------ */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}

.project-card {
  display: block;
  color: var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  transition: transform .25s, box-shadow .25s;
}

.project-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); color: var(--ink); }

.project-card-media { overflow: hidden; }

.project-card-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .4s;
}

.project-card:hover .project-card-media img { transform: scale(1.05); }

.project-card-body { padding: 1.1rem 1.3rem 1.3rem; }

.project-card-cat {
  display: block;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .7rem;
  font-weight: 600;
  color: var(--accent-dark);
  margin-bottom: .35rem;
}

.project-card-body h3 { margin: 0; font-size: 1.15rem; }

/* --- Banda CTA ------------------------------------------------------------------ */

.cta-band {
  position: relative;
  color: var(--white);
  text-align: center;
  overflow: hidden;
  padding-block: clamp(4rem, 10vw, 7rem);
}

.cta-band-media, .cta-band-media img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}

.cta-band-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(29, 26, 22, .72);
}

.cta-band-content { position: relative; z-index: 1; }
.cta-band-content p { color: rgba(255, 253, 250, .85); max-width: 52ch; margin-inline: auto; }
.cta-band-content .btn { margin-top: 1.2rem; }

/* --- Cabecera de páginas interiores ------------------------------------------------ */

.page-head { padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(2rem, 4vw, 3rem); }
.page-head-compact { padding-bottom: 1.5rem; }
.page-lead { max-width: 56ch; color: var(--ink-soft); font-size: 1.1rem; }

.breadcrumb { font-size: .9rem; color: var(--ink-soft); margin-bottom: 1rem; }
.breadcrumb span { color: var(--ink-soft); }

/* --- Filtros del portfolio ----------------------------------------------------------- */

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 2.2rem;
}

.filter-tabs a {
  padding: .5rem 1.15rem;
  border: 1.5px solid var(--line);
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--ink);
  background: var(--white);
  transition: border-color .2s, background .2s, color .2s;
}

.filter-tabs a:hover { border-color: var(--accent); color: var(--accent-dark); }
.filter-tabs a.is-active { background: var(--ink); border-color: var(--ink); color: var(--white); }

.empty-note { color: var(--ink-soft); padding-block: 2rem; }

/* --- Detalle de proyecto --------------------------------------------------------------- */

.project-layout {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.project-gallery { display: grid; gap: 1.2rem; }

.gallery-item { margin: 0; }

.gallery-zoom {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  cursor: zoom-in;
  border-radius: var(--radius);
  overflow: hidden;
}

.gallery-zoom img { width: 100%; transition: transform .35s; }
.gallery-zoom:hover img { transform: scale(1.02); }

.project-info { position: sticky; top: 92px; }

.project-info-inner {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.8rem;
}

.project-meta { margin: 0 0 1.2rem; }
.project-meta > div { display: flex; justify-content: space-between; gap: 1rem; padding-block: .55rem; border-bottom: 1px solid var(--line); }
.project-meta dt { font-weight: 600; font-size: .9rem; }
.project-meta dd { margin: 0; color: var(--ink-soft); font-size: .95rem; text-align: right; }

.project-desc { color: var(--ink-soft); margin-bottom: 1.5rem; }

.project-pager {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 2.5rem 4rem;
  border-top: 1px solid var(--line);
  margin-top: 3rem;
}

.pager-link { font-weight: 600; color: var(--ink); }
.pager-link:hover { color: var(--accent-dark); }
.pager-next { text-align: right; }

/* --- Lightbox ------------------------------------------------------------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(20, 18, 15, .93);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox[hidden] { display: none; }

.lightbox img {
  max-width: min(1200px, 100%);
  max-height: 90vh;
  border-radius: 10px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
}

.lightbox-close {
  position: absolute;
  top: 1.2rem; right: 1.6rem;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--white);
  background: none;
  border: 0;
  cursor: pointer;
  padding: .4rem;
}

/* --- Stats y proceso (Nosotros) --------------------------------------------------------- */

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  border-block: 1px solid var(--line);
  padding-block: 1.8rem;
}

.stat { text-align: center; }

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  color: var(--accent-dark);
  line-height: 1.1;
}

.stat span { color: var(--ink-soft); font-size: .95rem; }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: paso;
}

.process-step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
}

.process-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: .7rem;
}

.process-step p { color: var(--ink-soft); font-size: .93rem; margin: 0; }

/* --- Contacto ------------------------------------------------------------------------------ */

.contact-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.contact-form .field { margin-bottom: 1.2rem; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }

.contact-form label {
  display: block;
  font-weight: 600;
  font-size: .9rem;
  margin-bottom: .4rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: .8rem 1rem;
  font: inherit;
  color: var(--ink);
  background: var(--white);
  border: 1.5px solid var(--line);
  border-radius: 10px;
  transition: border-color .2s, box-shadow .2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(169, 116, 63, .18);
}

.field-trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.notice {
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin-bottom: 1.5rem;
  font-size: .97rem;
}

.notice-ok { background: #e7f2e9; border: 1px solid #bcd9c3; color: var(--ok); }
.notice-error { background: #f9e9e6; border: 1px solid #e5c0b8; color: var(--error); }

.contact-info h2 { font-size: 1.4rem; }

.contact-list {
  list-style: none;
  margin: 0; padding: 0;
}

.contact-list li { padding-block: .9rem; border-bottom: 1px solid var(--line); color: var(--ink-soft); }

.contact-label {
  display: block;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .72rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: .25rem;
}

.map-wrap { margin-top: 3rem; }

.map-wrap iframe {
  display: block;
  width: 100%;
  height: 420px;
  border: 0;
  filter: grayscale(.35);
}

/* --- Footer ----------------------------------------------------------------------------------- */

.site-footer {
  background: var(--dark);
  color: #cfc8bc;
  padding-top: clamp(3rem, 6vw, 4.5rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr .8fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}

.footer-logo { filter: invert(1) brightness(1.6); height: 30px; width: auto; margin-bottom: 1rem; }

.footer-brand p { font-size: .95rem; max-width: 34ch; }

.site-footer h3 {
  font-family: var(--font-body);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-list { list-style: none; margin: 0; padding: 0; font-size: .95rem; }
.footer-list li { margin-bottom: .55rem; }
.footer-list a { color: #cfc8bc; }
.footer-list a:hover { color: var(--white); }

.footer-social { display: flex; gap: .9rem; margin-top: 1.2rem; }

.footer-social a {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border: 1px solid var(--dark-soft);
  border-radius: 50%;
  color: #cfc8bc;
  transition: border-color .2s, color .2s, transform .15s;
}

.footer-social a:hover { border-color: var(--accent); color: var(--white); transform: translateY(-2px); }

.footer-bottom {
  border-top: 1px solid var(--dark-soft);
  padding-block: 1.4rem;
  font-size: .85rem;
}

.footer-bottom p { margin: 0; }

/* --- Botón flotante WhatsApp --------------------------------------------------------------------- */

.whatsapp-fab {
  position: fixed;
  right: 1.4rem;
  bottom: 1.4rem;
  z-index: 150;
  display: grid;
  place-items: center;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #1faa53;
  color: var(--white);
  box-shadow: 0 12px 30px -8px rgba(31, 170, 83, .55);
  transition: transform .2s, background .2s;
}

.whatsapp-fab:hover { transform: scale(1.08); background: #178a43; color: var(--white); }

/* --- Animaciones de aparición ---------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; }
}

/* --- Responsive -------------------------------------------------------------------------------------- */

@media (max-width: 960px) {
  .cards-3, .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .split, .project-layout, .contact-layout { grid-template-columns: 1fr; }
  .project-info { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .cards-3, .projects-grid, .process-grid, .field-row { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; gap: 1.2rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .hero { min-height: 88vh; }

  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    inset: 0;
    top: 66px;
    background: var(--bg);
    padding: 2rem 1.5rem;
    transform: translateX(100%);
    transition: transform .3s ease;
  }

  .site-nav.is-open { transform: none; }

  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 1.4rem; }
  .site-nav a:not(.btn) { font-size: 1.3rem; }

  body.nav-locked { overflow: hidden; }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}