/* ==========================================================
   LUMBRE — Cuadros y marcos a medida
   Estructura: tokens → base → layout → componentes → secciones
   ========================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --paper: #f4efe6;
  --sand: #e6dcc9;
  --ink: #1b1a17;
  --ink-soft: #4a463e;
  --clay: #c4542f;
  --clay-dark: #9c3f20;
  --moss: #4a5a43;
  --night: #16171a;

  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Manrope", system-ui, sans-serif;

  --radius: 4px;
  --container: 1160px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 { font-size: clamp(2.6rem, 6.5vw, 5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
h3 { font-size: 1.35rem; }

em { font-style: italic; color: var(--clay); }

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 3px;
}

.container {
  width: min(100% - var(--gutter) * 2, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* ---------- 3. Componentes ---------- */
.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 34ch;
  margin-top: 1.25rem;
}

.btn {
  display: inline-block;
  padding: 0.9rem 1.7rem;
  background: var(--ink);
  color: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.25s var(--ease), background 0.25s, color 0.25s;
}
.btn:hover { transform: translateY(-2px); background: var(--clay); border-color: var(--clay); }

.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { color: var(--paper); }

.btn-small { padding: 0.55rem 1.1rem; font-size: 0.88rem; }

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

.chip {
  padding: 0.5rem 1.15rem;
  background: transparent;
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--ink);
  transition: background 0.2s, color 0.2s;
}
.chip:hover,
.chip.is-active { background: var(--ink); color: var(--paper); }

/* Marcos (reutilizables) */
.frame {
  --frame-color: #b98a55;
  --frame-w: 10px;
  margin: 0;
  padding: var(--frame-w);
  background: var(--frame-color);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.25) inset,
    0 18px 30px -12px rgba(0, 0, 0, 0.35);
}
.frame--oak   { --frame-color: #b98a55; }
.frame--black { --frame-color: #1d1d1f; }
.frame--gold  { --frame-color: #c9a24b; }

.frame.has-matte .art { outline: clamp(10px, 3vw, 22px) solid #f7f3ea; outline-offset: calc(clamp(10px, 3vw, 22px) * -1); }

/* Obras generadas con CSS (sin imágenes) */
.art {
  width: 100%;
  height: 100%;
  min-height: 100%;
  display: block;
}

.art--sol {
  background:
    radial-gradient(circle at 50% 62%, #f3b13e 0 17%, transparent 17.5%),
    linear-gradient(to bottom, #e9825a 0%, #f2c18a 58%, #3b4a42 58%, #2a342e 100%);
}
.art--dunas {
  background:
    radial-gradient(120% 70% at 20% 100%, #b5683a 0 55%, transparent 56%),
    radial-gradient(120% 60% at 90% 100%, #d99356 0 52%, transparent 53%),
    linear-gradient(#f0d9b5, #f7ecd6);
}
.art--geo {
  background:
    conic-gradient(from 90deg at 50% 50%, #1b1a17 0 25%, #c4542f 0 50%, #e6dcc9 0 75%, #4a5a43 0);
}
.art--mar {
  background:
    repeating-linear-gradient(to bottom, rgba(255,255,255,0.18) 0 3px, transparent 3px 14px),
    linear-gradient(to bottom, #cfe3e6 0 38%, #2f6f86 38% 100%);
}
.art--bosque {
  background:
    linear-gradient(115deg, transparent 0 40%, rgba(0,0,0,0.18) 40% 41%, transparent 41%),
    linear-gradient(to bottom, #dfe7d0 0 30%, #6f8a5b 30% 62%, #3e5237 62% 100%);
}
.art--noche {
  background:
    radial-gradient(circle at 72% 28%, #f6f1d9 0 7%, transparent 7.5%),
    radial-gradient(circle at 20% 20%, #fff 0 0.6%, transparent 1%),
    radial-gradient(circle at 40% 40%, #fff 0 0.5%, transparent 1%),
    radial-gradient(circle at 55% 15%, #fff 0 0.5%, transparent 1%),
    linear-gradient(to bottom, #1c2340, #3b3d6b);
}
.art--ondas {
  background:
    radial-gradient(circle at 0 0, transparent 0 24%, #c4542f 25% 36%, transparent 37%) 0 0 / 60px 60px,
    radial-gradient(circle at 60px 60px, transparent 0 24%, #c4542f 25% 36%, transparent 37%) 0 0 / 60px 60px,
    #f0e4cf;
}

/* ---------- 4. Encabezado ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(27, 26, 23, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 1.1rem;
  height: 1.4rem;
  border: 3px solid var(--clay);
  border-radius: 2px;
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--clay);
  border-radius: 50% 50% 0 0;
}

.nav { display: flex; align-items: center; gap: 2rem; font-weight: 500; font-size: 0.95rem; }
.nav a:not(.btn) { position: relative; }
.nav a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 100%; height: 2px;
  background: var(--clay);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav a:not(.btn):hover::after { transform: scaleX(1); }

.nav-toggle { display: none; }

/* ---------- 5. Hero ---------- */
.hero { padding-block: clamp(3rem, 8vw, 6rem) clamp(3rem, 7vw, 5rem); overflow: hidden; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2rem; }

.hero-wall {
  position: relative;
  aspect-ratio: 1 / 1.05;
  background: var(--sand);
  border-radius: var(--radius);
  overflow: hidden;
}
.hero-wall::before { /* zócalo */
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 14%;
  background: rgba(27, 26, 23, 0.08);
}

.hero-wall .frame { position: absolute; }
.wall-a { width: 40%; height: 54%; left: 9%; top: 11%; --frame-w: 9px; transform: rotate(-1.2deg); }
.wall-b { width: 34%; height: 36%; right: 9%; top: 9%; --frame-w: 8px; transform: rotate(1.5deg); }
.wall-c { width: 30%; height: 30%; right: 16%; top: 52%; --frame-w: 7px; }

.wall-lamp {
  position: absolute;
  left: 63%; bottom: 14%;
  width: 4px; height: 26%;
  background: var(--ink);
}
.wall-lamp::before {
  content: "";
  position: absolute;
  left: 50%; top: -14px;
  width: 52px; height: 30px;
  background: var(--clay);
  border-radius: 50% 50% 4px 4px;
  transform: translateX(-50%);
}

/* ---------- 6. Cinta ---------- */
.marquee {
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  padding-block: 0.9rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
}
.marquee-track {
  display: flex;
  gap: 3rem;
  width: max-content;
  animation: slide 28s linear infinite;
}
.marquee-track span::after { content: "✦"; margin-left: 3rem; color: var(--clay); }

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

/* ---------- 7. Secciones ---------- */
.section { padding-block: clamp(4rem, 9vw, 7rem); }
.section--dark { background: var(--night); color: var(--paper); }
.section--dark .lead { color: rgba(244, 239, 230, 0.7); }
.section--dark em { color: #e98a64; }
.section--clay { background: var(--clay); color: var(--paper); }
.section--clay .eyebrow,
.section--clay em { color: var(--ink); }
.section--clay .lead { color: rgba(255, 255, 255, 0.85); }

.section-head { margin-bottom: 2.5rem; }

/* ---------- 8. Colección ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 2.5rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2rem 1.5rem;
}

.card { animation: fade-up 0.5s var(--ease) both; }
.card-frame { aspect-ratio: 4 / 5; transition: transform 0.4s var(--ease); }
.card:hover .card-frame { transform: translateY(-6px) rotate(-0.6deg); }

.card h3 { margin-top: 1.1rem; }
.card-meta { display: flex; justify-content: space-between; margin-top: 0.3rem; font-size: 0.92rem; color: var(--ink-soft); }
.card-meta strong { color: var(--ink); }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 9. Configurador ---------- */
.configurator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.options { display: grid; gap: 1.4rem; margin-top: 2rem; }
.options fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.options legend {
  width: 100%;
  margin-bottom: 0.6rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.55);
}

.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border: 1.5px solid rgba(244, 239, 230, 0.3);
  border-radius: 999px;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.opt span:hover { border-color: var(--paper); }
.opt input:checked + span { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.opt input:focus-visible + span { outline: 2px solid var(--clay); outline-offset: 3px; }

.dot { width: 0.8rem; height: 0.8rem; border-radius: 50%; display: inline-block; border: 1px solid rgba(0,0,0,0.25); }
.dot--oak { background: #b98a55; }
.dot--black { background: #1d1d1f; }
.dot--gold { background: #c9a24b; }

.price { margin-top: 2rem; font-size: 1.05rem; color: rgba(244, 239, 230, 0.7); }
.price strong { font-family: var(--font-display); font-size: 2.2rem; font-weight: 400; color: var(--paper); margin-left: 0.4rem; }

.preview-room {
  background: #2b2c31;
  border-radius: var(--radius);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.preview-room::after { /* piso */
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 16%;
  background: #1f2024;
}

.preview-frame {
  --frame-w: 12px;
  height: var(--ph, 56%);
  aspect-ratio: var(--ratio, 3 / 4);
  transition: height 0.5s var(--ease), aspect-ratio 0.5s var(--ease), background 0.3s;
}

.preview-caption { margin-top: 0.8rem; font-size: 0.82rem; color: rgba(244, 239, 230, 0.5); text-align: center; }

/* ---------- 10. Proceso ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 2rem;
  counter-reset: step;
}
.step { border-top: 2px solid var(--ink); padding-top: 1.2rem; }
.step-n { font-family: var(--font-display); font-style: italic; color: var(--clay); font-size: 1.1rem; }
.step h3 { margin: 0.4rem 0 0.6rem; }
.step p { color: var(--ink-soft); }

/* ---------- 11. Contacto ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.contact-list { margin-top: 2rem; display: grid; gap: 0.4rem; font-weight: 500; }

.form { display: grid; gap: 1.1rem; }
.form label { display: grid; gap: 0.4rem; font-size: 0.85rem; font-weight: 700; letter-spacing: 0.04em; }

.form input,
.form textarea {
  font: inherit;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  border-radius: var(--radius);
  color: var(--paper);
  resize: vertical;
}
.form input:focus,
.form textarea:focus { outline: none; background: rgba(255, 255, 255, 0.2); border-color: var(--paper); }
.form .is-invalid { border-color: var(--ink); background: rgba(27, 26, 23, 0.18); }

.form-status { min-height: 1.4rem; font-weight: 500; }

/* ---------- 12. Pie ---------- */
.site-footer { background: var(--ink); color: var(--paper); padding-block: 2rem; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
.site-footer small { opacity: 0.6; }

/* ---------- 13. Animación al hacer scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 14. Responsive ---------- */
@media (max-width: 860px) {
  .hero-grid,
  .configurator,
  .contact { grid-template-columns: 1fr; }

  .hero-wall { aspect-ratio: 1 / 0.85; }

  .nav-toggle {
    display: grid;
    gap: 6px;
    width: 2.6rem; height: 2.6rem;
    place-content: center;
    background: none;
    border: 0;
  }
  .nav-toggle span { display: block; width: 24px; height: 2px; background: var(--ink); transition: transform 0.3s var(--ease); }
  .nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:last-child  { transform: translateY(-4px) rotate(-45deg); }

  .nav {
    position: absolute;
    top: 4.5rem; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.2rem;
    padding: 1.5rem var(--gutter) 2rem;
    background: var(--paper);
    border-bottom: 1px solid rgba(27, 26, 23, 0.1);
    transform: translateY(-120%);
    visibility: hidden;
    transition: transform 0.4s var(--ease), visibility 0.4s;
  }
  .nav.is-open { transform: none; visibility: visible; }
}

/* ---------- 15. Accesibilidad: menos movimiento ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}