/* ============================================================
   Andrés Urtado — Escultor
   Paleta: acero corten, hormigón (gris claro), luz ámbar
   ============================================================ */

:root {
  --bg:        #e7e6e3;   /* gris claro tipo hormigón pulido */
  --bg-alt:    #dedcd8;   /* sección alterna, hormigón un tono más */
  --ink:       #23211e;   /* casi negro neutro */
  --ink-soft:  #575450;   /* texto secundario */
  --line:      #cbc8c2;   /* líneas / bordes */
  --corten:    #8a4a2b;   /* óxido acero corten */
  --amber:     #e0a24a;   /* luz ámbar */
  --white:     #f4f3f0;   /* superficie clara (marcos de foto) */

  --serif-display: "Cormorant Garamond", Georgia, serif;
  --serif-body:    "EB Garamond", Georgia, serif;
  --sans:          "Jost", -apple-system, Helvetica, Arial, sans-serif;

  --container: 1200px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Tipografía utilitaria ---------- */
.eyebrow {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--corten);
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 2rem;
}
.eyebrow::before {
  content: "";
  width: 2.4rem;
  height: 1px;
  background: var(--corten);
  opacity: 0.6;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), padding 0.4s var(--ease);
  padding: 0.4rem 0;
}
.site-header.scrolled {
  background: rgba(231, 230, 227, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
}

.wordmark {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 1.5rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: 2.4rem;
}
.nav a {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  position: relative;
  padding: 0.3rem 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--corten);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease);
}
.nav a:hover::after { transform: scaleX(1); transform-origin: left; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 26px; height: 1.5px;
  background: var(--ink);
  transition: transform 0.35s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease);
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
  font-family: var(--serif-display);
  font-size: 2rem;
  letter-spacing: 0.04em;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  padding-top: clamp(7rem, 14vh, 11rem);
  padding-bottom: clamp(3rem, 8vh, 6rem);
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.hero__title {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: clamp(3.2rem, 8vw, 6.2rem);
  line-height: 0.98;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.hero__subtitle {
  font-family: var(--serif-display);
  font-style: italic;
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  color: var(--ink-soft);
  margin-top: 1.5rem;
  max-width: 20ch;
}
.hero__desc {
  color: var(--ink-soft);
  max-width: 42ch;
  margin-top: 1.75rem;
}
.hero__media { position: relative; }

/* ---------- Botón ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 2.5rem;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 0.95rem 1.7rem;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.btn::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
  z-index: -1;
}
.btn:hover { color: var(--white); border-color: var(--ink); }
.btn:hover::before { transform: scaleX(1); }
.btn svg { transition: transform 0.4s var(--ease); }
.btn:hover svg { transform: translateX(4px); }

/* ============================================================
   COLECCIÓN
   ============================================================ */
.collection {
  padding: clamp(4rem, 10vh, 8rem) 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
}
.collection__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 2.5vw, 2rem);
}
.piece { cursor: pointer; }
.piece__img {
  overflow: hidden;
  background: var(--white);
  aspect-ratio: 3 / 4;
}
.piece__img .img-placeholder,
.piece__img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}
.piece:hover .piece__img img,
.piece:hover .piece__img .img-placeholder { transform: scale(1.05); }
.piece__name {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: 1.5rem;
  text-align: center;
  margin-top: 1.4rem;
}
.piece__meta {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  text-align: center;
  margin-top: 0.4rem;
}

/* ============================================================
   ARTISTA
   ============================================================ */
.artist { padding: clamp(4rem, 12vh, 9rem) 0; }
.artist__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2.5rem, 7vw, 6rem);
  align-items: center;
}
.artist__lead {
  font-family: var(--serif-display);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 1.75rem;
}
.artist__body { color: var(--ink-soft); max-width: 52ch; }
.artist__media .img-placeholder { aspect-ratio: 4 / 5; }

/* ============================================================
   CONTACTO
   ============================================================ */
.contact {
  padding: clamp(4rem, 12vh, 9rem) 0;
  background: var(--ink);
  color: var(--bg);
}
.contact .eyebrow { color: var(--amber); }
.contact .eyebrow::before { background: var(--amber); }
.contact__inner { max-width: 760px; }
.contact__title {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.05;
}
.contact__desc {
  color: rgba(246, 242, 236, 0.7);
  max-width: 46ch;
  margin-top: 1.25rem;
}
.contact__links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.contact__link {
  border: 1px solid rgba(246, 242, 236, 0.2);
  padding: 1.6rem 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.contact__link:hover {
  border-color: var(--amber);
  background: rgba(224, 162, 74, 0.06);
}
.contact__label {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
}
.contact__value {
  font-family: var(--serif-display);
  font-size: 1.35rem;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--ink);
  color: var(--bg);
  padding-top: clamp(3rem, 6vh, 5rem);
  border-top: 1px solid rgba(246, 242, 236, 0.12);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
  padding-bottom: 2.5rem;
}
.wordmark--footer { font-size: 1.7rem; }
.footer__tag {
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(246, 242, 236, 0.55);
  margin-top: 0.4rem;
}
.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-align: right;
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.9rem;
}
.footer__contact a { color: rgba(246, 242, 236, 0.75); transition: color 0.3s var(--ease); }
.footer__contact a:hover { color: var(--amber); }
.footer__legal {
  border-top: 1px solid rgba(246, 242, 236, 0.12);
  padding: 1.5rem var(--gutter);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 0.78rem;
  color: rgba(246, 242, 236, 0.45);
}

/* ============================================================
   PLACEHOLDER DE IMAGEN (se reemplaza por fotos reales)
   ============================================================ */
.img-placeholder {
  width: 100%;
  height: 100%;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-linear-gradient(45deg, #d7d5d0 0 14px, #ceccc6 14px 28px);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.img-placeholder span {
  background: var(--white);
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--line);
}
.img-placeholder--hero { aspect-ratio: 7 / 8; }
.img-placeholder--tall { aspect-ratio: 4 / 5; }

/* ============================================================
   REVEAL (animación al hacer scroll)
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

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

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }

  .hero__inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__media { order: -1; max-width: 440px; }

  .collection__grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem 1.25rem; }

  .artist__inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .artist__media { max-width: 460px; }

  .contact__links { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .collection__grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .footer__contact { text-align: left; }
}