/* ArqID Construcciones — estilos */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;600;700&family=Barlow+Condensed:wght@500;600;700&display=swap');

:root {
  --color-bg: #ffffff;
  --color-surface: #f6f1ea;
  --color-ink: #1a1a1a;
  --color-text: #201d1a;
  --color-accent: #f0670d;
  --color-accent-dark: #c4520a;
  --color-cream: #ecd7bd;
  --color-divider: color-mix(in srgb, #1a1a1a 12%, transparent);

  --font-heading: "Barlow Condensed", system-ui, sans-serif;
  --font-body: "Barlow", system-ui, sans-serif;
}

* , *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
}

a { color: var(--color-accent-dark); text-decoration: none; }
img { display: block; max-width: 100%; }
figure { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap { max-width: 1180px; margin: 0 auto; padding-left: 32px; padding-right: 32px; }
.kicker {
  font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-accent-dark); margin-bottom: 14px; font-weight: 600;
}

/* — botones — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  cursor: pointer; text-decoration: none; border: none;
  font-family: var(--font-heading); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em;
  font-size: 14px; line-height: 1.2; color: #fff;
  background: var(--color-ink);
  padding: 13px 26px; border-radius: 999px;
}
.btn:hover { background: var(--color-accent); }
.btn-outline {
  background: transparent; color: var(--color-ink);
  border: 1.5px solid var(--color-ink);
}
.btn-outline:hover { background: var(--color-ink); color: #fff; }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 18px; font-size: 12px; }

/* — header / nav — */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-divider);
}
nav.site { display: flex; align-items: center; gap: 28px; padding: 14px 32px; }
.brand { display: flex; align-items: center; gap: 10px; margin-right: auto; color: inherit; }
.logo-mark { display: flex; align-items: center; gap: 0; flex: none; }
.logo-mark .circle { width: 20px; height: 20px; border-radius: 50%; background: var(--color-ink); }
.logo-mark .bar { width: 1.5px; height: 20px; background: var(--color-ink); margin-left: 0; }
.logo-mark .square { width: 20px; height: 20px; background: var(--color-ink); margin-left: 3.5px; }
.wordmark { font-family: var(--font-heading); font-weight: 700; font-size: 21px; letter-spacing: -0.01em; color: var(--color-ink); }
.wordmark small { display: block; font-family: var(--font-body); font-weight: 400; font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: color-mix(in srgb, var(--color-text) 55%, transparent); margin-top: -1px; }

.navlinks { display: flex; gap: 22px; align-items: center; font-size: 14px; }
.navlinks a { color: var(--color-text); font-weight: 500; }
.navlinks a:hover { color: var(--color-accent-dark); }

.nav-toggle {
  display: none; flex: none; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--color-divider); background: none; cursor: pointer;
  align-items: center; justify-content: center; padding: 0;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 16px; height: 2px; background: var(--color-ink); position: relative;
}
.nav-toggle span::before { position: absolute; top: -5px; }
.nav-toggle span::after { position: absolute; top: 5px; }

/* — hero — */
.hero { padding: 64px 32px 0; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(38px, 4.6vw, 60px); line-height: 1.04; margin: 0 0 20px; max-width: 13ch; }
.hero p { font-size: 17px; line-height: 1.6; max-width: 46ch; color: color-mix(in srgb, var(--color-text) 82%, transparent); margin: 0 0 30px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-collage { position: relative; aspect-ratio: 4/5; }
.hero-collage img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.hero-collage figure:hover img { transform: scale(1.04); }
.hc-roof { position: absolute; inset: 0 18% 42% 0; overflow: hidden; }
.hc-balcony { position: absolute; inset: 30% 0 0 32%; overflow: hidden; box-shadow: -6px -6px 0 var(--color-bg); }
.hc-tile { position: absolute; left: 0; bottom: 0; width: 46%; aspect-ratio: 1/1; overflow: hidden; box-shadow: 6px -6px 0 var(--color-bg); }
.hc-tile img { object-fit: cover; }

/* — banner CTA (negro, estilo real del PDF) — */
.cta-banner {
  background: var(--color-ink); color: #fff;
  margin-top: 56px;
}
.cta-banner .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  padding: 34px 32px;
}
.cta-banner h2 { font-size: clamp(20px, 2.6vw, 30px); color: #fff; letter-spacing: -0.01em; text-transform: uppercase; }
.cta-banner .btn { background: var(--color-accent); }
.cta-banner .btn:hover { background: #fff; color: var(--color-ink); }

/* — intro / equipo — */
.intro { padding: 96px 32px; }
.intro-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: center; }
.intro-figure { aspect-ratio: 4/3; overflow: hidden; }
.intro-figure img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.intro-figure:hover img { transform: scale(1.04); }
.intro h2 { font-size: clamp(28px, 3vw, 38px); margin: 0 0 18px; }
.intro p.lead { font-size: 16px; line-height: 1.65; color: color-mix(in srgb, var(--color-text) 78%, transparent); max-width: 54ch; margin: 0 0 28px; }
.value-chips { display: flex; gap: 12px; flex-wrap: wrap; }
.value-chip {
  display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600;
  padding: 8px 16px; border-radius: 999px; background: var(--color-surface);
  border: 1px solid var(--color-divider);
}
.value-chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--color-accent); flex: none; }

/* — categorías de obra — */
.category { padding: 88px 32px; border-top: 1px solid var(--color-divider); scroll-margin-top: 78px; }
.category.alt { background: var(--color-surface); }
.category .wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: start; }
.category-head .kicker { display: flex; align-items: center; gap: 8px; }
.category-num {
  font-family: var(--font-heading); font-weight: 700; font-size: 13px;
  color: #fff; background: var(--color-ink); width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
}
.category h2 { font-size: clamp(26px, 2.8vw, 36px); margin: 0 0 16px; }
.category p.desc { font-size: 15.5px; line-height: 1.68; color: color-mix(in srgb, var(--color-text) 80%, transparent); margin: 0 0 28px; }
.category-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.category-gallery figure { overflow: hidden; background: var(--color-divider); }
.category-gallery img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; transition: transform .5s ease; }
.category-gallery a:hover img { transform: scale(1.04); }
.category-gallery figure:first-child { grid-column: 1 / -1; }
.category-gallery figure:first-child img { aspect-ratio: 16/9; }

/* — contacto — */
#contacto { border-top: 1px solid var(--color-divider); padding: 96px 32px; }
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 64px; }
.contact-info h2 { font-size: clamp(30px, 3.4vw, 44px); margin: 0 0 18px; }
.contact-info p { font-size: 16px; line-height: 1.6; color: color-mix(in srgb, var(--color-text) 76%, transparent); max-width: 40ch; margin: 0 0 32px; }
.contact-rows { display: flex; flex-direction: column; gap: 14px; font-size: 15px; margin-bottom: 28px; }
.contact-row { display: flex; gap: 12px; align-items: baseline; }
.contact-row span.label { color: var(--color-accent-dark); font-family: var(--font-heading); font-weight: 600; font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; width: 70px; flex: none; }
.contact-row a { color: var(--color-text); }
.contact-row a:hover { color: var(--color-accent-dark); }
.social-row { display: flex; gap: 10px; }
.social-row a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--color-divider); color: var(--color-ink);
}
.social-row a:hover { background: var(--color-ink); color: #fff; border-color: var(--color-ink); }
.social-row svg { width: 17px; height: 17px; }

.contact-form { padding: 36px; display: flex; flex-direction: column; gap: 18px; background: var(--color-surface); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label { display: block; font-size: 12px; margin-bottom: 6px; font-weight: 600; color: color-mix(in srgb, var(--color-text) 70%, transparent); }
.input {
  width: 100%; min-height: 40px; padding: 8px 12px; font: inherit; font-size: 14px;
  color: var(--color-text); background: #fff;
  border: 1px solid var(--color-divider); border-radius: 4px;
}
.input:focus-visible { border-color: var(--color-accent); outline: 2px solid var(--color-accent); outline-offset: 0; }
textarea.input { min-height: 96px; resize: vertical; }
.form-note { font-size: 12px; color: color-mix(in srgb, var(--color-text) 55%, transparent); margin: 0; }

/* — footer — */
footer.site { background: var(--color-ink); color: #efe9e1; }
.footer-wrap { padding: 48px 32px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer-brand { display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap; row-gap: 6px; }
.footer-tagline { min-width: 0; }
.footer-brand .logo-mark .circle, .footer-brand .logo-mark .bar, .footer-brand .logo-mark .square { background: #fff; }
.footer-brand .wordmark { color: #fff; }
.footer-brand .wordmark small { color: color-mix(in srgb, #efe9e1 60%, transparent); }
.footer-tagline { font-size: 13px; color: color-mix(in srgb, #efe9e1 65%, transparent); }
.footer-rights { font-size: 12px; color: color-mix(in srgb, #efe9e1 50%, transparent); }
.footer-rights a { color: color-mix(in srgb, #efe9e1 75%, transparent); text-decoration: underline; text-underline-offset: 2px; transition: color .15s ease; }
.footer-rights a:hover, .footer-rights a:focus-visible { color: var(--color-accent); }
footer.site .social-row a { border-color: color-mix(in srgb, #efe9e1 30%, transparent); color: #efe9e1; }
footer.site .social-row a:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

/* — responsive — */
@media (max-width: 900px) {
  .hero-grid, .intro-grid, .contact-grid { grid-template-columns: 1fr; }
  .category .wrap { grid-template-columns: 1fr; }
  .navlinks { display: none; }
  .nav-toggle { display: flex; }
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .category-gallery { grid-template-columns: 1fr 1fr; }
  section, .hero, .intro, .category, #contacto { padding-left: 20px; padding-right: 20px; }
  nav.site { padding: 14px 20px; }
  .cta-banner .wrap { padding: 28px 20px; flex-direction: column; align-items: flex-start; }
  .footer-tagline { flex-basis: 100%; }
}