/* ============================================================
   Martina · Galería de arte virtual
   ============================================================ */

:root {
  --wall: #f4f1ec;          /* pared de galería */
  --wall-2: #ebe6de;
  --ink: #1c1a17;           /* texto principal */
  --ink-soft: #5c574f;      /* texto secundario */
  --line: #d9d2c6;          /* líneas / bordes */
  --accent: #8a6d4b;        /* madera / bronce */
  --white: #ffffff;
  --wa: #25d366;
  --ig: #d6249f;

  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --wrap: 1180px;
  --pad: clamp(1.25rem, 5vw, 4rem);
  --nav-h: 72px;
  --safe-top: env(safe-area-inset-top, 0px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + var(--safe-top)); }

body {
  margin: 0;
  background: var(--wall);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.1; margin: 0; }

::selection { background: var(--accent); color: #fff; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.6rem;
  font-family: var(--sans);
  font-size: .82rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--ink);
  transition: background .25s, color .25s, transform .25s;
  cursor: pointer;
}
.btn--solid { background: var(--ink); color: var(--wall); }
.btn--solid:hover { background: transparent; color: var(--ink); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--wall); }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  min-height: var(--nav-h);
  padding-top: var(--safe-top);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background .3s, box-shadow .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav--scrolled {
  background: rgba(244, 241, 236, .92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom-color: var(--line);
}
.nav__inner {
  width: 100%;
  max-width: var(--wrap);
  min-height: var(--nav-h);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.nav__brand { text-decoration: none; display: flex; flex-direction: column; line-height: 1; }
.nav__brand-name { font-family: var(--serif); font-size: 1.5rem; letter-spacing: .02em; }
.nav__brand-sub {
  font-size: .62rem; letter-spacing: .28em; text-transform: uppercase;
  color: var(--ink-soft); margin-top: .25rem;
}
.nav__links { display: flex; gap: 2.25rem; }
.nav__link {
  text-decoration: none;
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
  position: relative;
  padding: .3rem 0;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--ink);
  transition: width .3s;
}
.nav__link:hover::after { width: 100%; }

.nav__toggle {
  display: none;
  width: 44px; height: 44px;
  margin-right: -10px;
  background: none; border: 0; cursor: pointer;
  align-items: center;
  flex-direction: column; justify-content: center; gap: 5px;
}
.nav__toggle span { display: block; height: 2px; width: 24px; background: var(--ink); border-radius: 2px; transition: transform .3s, opacity .3s; }
.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); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-h) + var(--safe-top) + 2rem) var(--pad) 6rem;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1200px 600px at 20% 0%, rgba(255,255,255,.7), transparent 60%),
    radial-gradient(900px 500px at 90% 100%, rgba(138,109,75,.16), transparent 55%),
    linear-gradient(180deg, var(--wall-2), var(--wall));
}
.hero__bg::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(28,26,23,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28,26,23,.05) 1px, transparent 1px);
  background-size: 90px 90px;
  mask-image: radial-gradient(closest-side, #000, transparent);
}
.hero__content { position: relative; max-width: 720px; }
.hero__eyebrow {
  margin: 0 0 1.25rem;
  font-size: .72rem; letter-spacing: .34em; text-transform: uppercase;
  color: var(--ink-soft);
}
.hero__title {
  font-size: clamp(3.5rem, 12vw, 7.5rem);
  font-weight: 400;
  letter-spacing: .01em;
}
.hero__lead {
  margin: 1.75rem auto 2.5rem;
  max-width: 34rem;
  font-size: 1.08rem;
  color: var(--ink-soft);
}
.hero__actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 1px solid var(--ink-soft);
  border-radius: 20px;
}
.hero__scroll span {
  position: absolute; left: 50%; top: 8px;
  width: 3px; height: 8px; border-radius: 2px;
  background: var(--ink-soft);
  transform: translateX(-50%);
  animation: scrolldot 1.8s infinite;
}
@keyframes scrolldot { 0% { opacity: 0; top: 8px; } 40% { opacity: 1; } 80% { opacity: 0; top: 22px; } 100% { opacity: 0; } }

/* ---------- Secciones ---------- */
.section {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(4rem, 10vw, 8rem) var(--pad);
}
.section--about { background: var(--wall-2); max-width: none; }
.section--about .about { max-width: var(--wrap); margin: 0 auto; }
.section--contact { border-top: 1px solid var(--line); }

.section__head { max-width: 42rem; margin-bottom: 3rem; }
.section__eyebrow {
  margin: 0 0 1rem;
  font-size: .7rem; letter-spacing: .3em; text-transform: uppercase;
  color: var(--accent);
}
.section__title { font-size: clamp(2.25rem, 6vw, 3.4rem); }
.section__intro { margin: 1.25rem 0 0; color: var(--ink-soft); font-size: 1.02rem; }

/* ---------- Filtros ---------- */
.filters {
  display: flex; flex-wrap: wrap; gap: .6rem;
  margin-bottom: 2.5rem;
}
.filters__btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  padding: .5rem 1.1rem;
  font-family: var(--sans);
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .22s;
}
.filters__btn:hover { border-color: var(--ink); color: var(--ink); }
.filters__btn.is-active { background: var(--ink); border-color: var(--ink); color: var(--wall); }

/* ---------- Galería ---------- */
.gallery {
  columns: 3 280px;
  column-gap: 1.75rem;
}
.card {
  break-inside: avoid;
  margin-bottom: 1.75rem;
  background: var(--white);
  padding: 14px 14px 0;
  box-shadow: 0 1px 2px rgba(28,26,23,.06), 0 18px 40px -24px rgba(28,26,23,.35);
  cursor: pointer;
  border: 0;
  width: 100%;
  text-align: left;
  font: inherit;
  color: inherit;
  transition: transform .3s ease, box-shadow .3s ease;
  opacity: 0;
  transform: translateY(18px);
}
.card.is-in { opacity: 1; transform: none; }
.card:hover { transform: translateY(-4px); box-shadow: 0 1px 2px rgba(28,26,23,.06), 0 30px 60px -28px rgba(28,26,23,.5); }
.card__frame { overflow: hidden; background: var(--wall-2); }
.card__frame img { width: 100%; height: auto; transition: transform .6s ease; }
.card:hover .card__frame img { transform: scale(1.04); }
.card__body { padding: 1rem .35rem 1.15rem; display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.card__title { font-family: var(--serif); font-size: 1.3rem; line-height: 1.2; }
.card__meta { font-size: .76rem; color: var(--ink-soft); white-space: nowrap; }
.card__tag {
  display: inline-block;
  margin-top: .15rem;
  font-size: .62rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--accent);
}
.card__tag--sold { color: #a33; }

.gallery__empty { color: var(--ink-soft); font-style: italic; }

/* ---------- Sobre ---------- */
.about { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.about__photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: var(--wall);
  box-shadow: 0 30px 60px -30px rgba(28,26,23,.5);
}
.about__text p { color: var(--ink-soft); margin: 1.1rem 0; }
.about__text .btn { margin-top: 1rem; }
.about__text .section__title { margin-bottom: .5rem; }

/* ---------- Contacto ---------- */
.contact__actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; }
.contact__card {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.4rem 1.5rem;
  background: var(--white);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.contact__card:hover { transform: translateY(-3px); box-shadow: 0 24px 44px -28px rgba(28,26,23,.45); border-color: var(--ink); }
.contact__icon { flex: none; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 50%; background: var(--wall-2); color: var(--ink); }
#contactWhatsapp .contact__icon { color: var(--wa); }
#contactInstagram .contact__icon { color: var(--ig); }
.contact__body { display: flex; flex-direction: column; }
.contact__body strong { font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); }
.contact__body span { font-family: var(--serif); font-size: 1.25rem; }
.contact__location { margin-top: 2rem; color: var(--ink-soft); font-style: italic; }

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  padding: 4rem var(--pad);
  background: var(--ink);
  color: var(--wall);
}
.footer__name { font-family: var(--serif); font-size: 1.8rem; margin: 0 0 .75rem; }
.footer__line { font-size: .82rem; color: rgba(244,241,236,.6); margin: 0; }
.footer__credit { font-size: .78rem; color: rgba(244,241,236,.45); margin: 1rem 0 0; }
.footer__credit a { color: rgba(244,241,236,.75); }

/* ---------- Burbuja flotante ---------- */
.fab {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.fab__btn {
  position: relative;
  width: 54px; height: 54px;
  display: grid; place-items: center;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 10px 25px -6px rgba(0,0,0,.45);
  transition: transform .22s, box-shadow .22s;
}
.fab__btn:hover { transform: scale(1.08); box-shadow: 0 14px 30px -6px rgba(0,0,0,.55); }
.fab__btn--wa { background: var(--wa); }
.fab__btn--ig { background: linear-gradient(135deg, #f9ce34, #ee2a7b 45%, #6228d7); }
.fab__btn--wa::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(37,211,102,.5);
  animation: pulse 2.4s infinite;
}
@keyframes pulse { to { box-shadow: 0 0 0 18px rgba(37,211,102,0); } }
.fab__tip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%) translateX(6px);
  white-space: nowrap;
  background: var(--ink);
  color: var(--wall);
  font-size: .74rem;
  letter-spacing: .04em;
  padding: .45rem .7rem;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s, transform .2s;
}
.fab__btn:hover .fab__tip { opacity: 1; transform: translateY(-50%) translateX(0); }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(20,18,16,.9);
  backdrop-filter: blur(4px);
  display: grid; place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  animation: fade .25s ease;
}
@keyframes fade { from { opacity: 0; } }
.lightbox[hidden] { display: none; }
.lightbox__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 1fr);
  background: var(--wall);
  max-width: 1100px;
  width: 100%;
  max-height: 88vh;
  overflow: hidden;
}
.lightbox__figure { background: #14120f; display: grid; place-items: center; padding: 1.5rem; }
.lightbox__figure img { max-width: 100%; max-height: 82vh; object-fit: contain; box-shadow: 0 20px 50px -20px rgba(0,0,0,.7); }
.lightbox__meta { padding: clamp(1.5rem, 4vw, 2.75rem); overflow-y: auto; }
.lightbox__collection { margin: 0 0 .5rem; font-size: .66rem; letter-spacing: .24em; text-transform: uppercase; color: var(--accent); }
.lightbox__title { font-size: 2rem; }
.lightbox__year { margin: .25rem 0 1.5rem; color: var(--ink-soft); }
.lightbox__specs { margin: 0 0 1.5rem; padding: 1.25rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.lightbox__specs > div { display: flex; justify-content: space-between; gap: 1rem; padding: .35rem 0; }
.lightbox__specs dt { color: var(--ink-soft); font-size: .82rem; letter-spacing: .06em; text-transform: uppercase; margin: 0; }
.lightbox__specs dd { margin: 0; text-align: right; font-size: .95rem; }
.lightbox__desc { color: var(--ink-soft); margin: 0 0 1.75rem; }

.lightbox__close, .lightbox__nav {
  position: absolute;
  background: rgba(244,241,236,.12);
  color: #fff;
  border: 0;
  cursor: pointer;
  display: grid; place-items: center;
  transition: background .2s;
}
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(244,241,236,.28); }
.lightbox__close { top: 1.25rem; right: 1.25rem; width: 44px; height: 44px; font-size: 1.8rem; line-height: 1; }
.lightbox__nav { top: 50%; transform: translateY(-50%); width: 48px; height: 64px; font-size: 2rem; line-height: 1; }
.lightbox__nav--prev { left: 1rem; }
.lightbox__nav--next { right: 1rem; }

body.no-scroll { overflow: hidden; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .gallery { columns: 2 240px; }
  .about { grid-template-columns: 1fr; }
  .about__photo img { aspect-ratio: 3 / 3.4; max-width: 420px; }
}

@media (max-width: 720px) {
  .nav {
    background: rgba(244,241,236,.96);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
  }
  .nav__toggle { display: flex; }
  .nav__brand-name { font-size: 1.35rem; }

  .nav__links {
    position: fixed;
    inset: calc(var(--nav-h) + var(--safe-top)) 0 auto 0;
    flex-direction: column;
    gap: 0;
    background: rgba(244,241,236,.98);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    padding: .25rem var(--pad) 1.25rem;
    transform: translateY(-135%);
    transition: transform .35s ease, visibility .35s;
    visibility: hidden;
    box-shadow: 0 24px 40px -28px rgba(28,26,23,.5);
  }
  .nav__links.is-open { transform: translateY(0); visibility: visible; }
  .nav__link { padding: 1rem 0; border-bottom: 1px solid var(--line); }
  .nav__link:last-child { border-bottom: 0; }
  .nav__link::after { display: none; }

  .lightbox__inner { grid-template-columns: 1fr; grid-template-rows: auto 1fr; max-height: 92vh; }
  .lightbox__figure { padding: 1rem; }
  .lightbox__figure img { max-height: 45vh; }
  .lightbox__nav { top: auto; bottom: 1rem; transform: none; height: 48px; }
}

@media (max-width: 420px) {
  .gallery { columns: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
}