/* ==========================================================================
   EON · Sistema visual
   1. Tokens   2. Base   3. Tipografía   4. Layout   5. Componentes
   6. Encabezado y pie   7. Tienda   8. Ficha   9. Atlas   10. Pasaporte
   11. Utilidades   12. Responsive
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root {
  /* Materia: base neutra y cálida, independiente de cualquier gema */
  --calcita: #F5F3EF;   /* fondo principal (Raw Calcite, manual de marca) */
  --piedra: #EAE5DC;    /* superficies, marcos de foto */
  --arena: #D8CEBD;     /* líneas fuertes, rellenos suaves */
  --carbon: #121314;    /* texto y acciones primarias (Carbon Slate) */
  --umber: #2B231F;     /* bloques oscuros cálidos (Deep Umber) */
  --arcilla: #8A4E35;   /* acento funcional: enlaces activos, foco */
  --champana: #C5B392;  /* acento metálico: solo decorativo o sobre oscuro */
  --texto-2: #57514A;   /* texto secundario (7:1 sobre calcita) */
  --linea: #CFC7BA;
  --linea-suave: #E1DBD1;
  --ok: #2F6B4A;
  --alerta: #8A5A12;
  --error: #A3352B;

  --serif: "Fraunces", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Manrope", "Segoe UI", system-ui, -apple-system, sans-serif;

  --max: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --radio: 2px;
  --t: 180ms cubic-bezier(.2, .6, .2, 1);
  --header-h: 72px;
}

/* 2. Base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0; background: var(--calcita); color: var(--carbon);
  font: 400 1rem/1.6 var(--sans); -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { color: var(--arcilla); }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--arcilla); outline-offset: 3px; border-radius: 1px; }
.on-dark :focus-visible, .on-dark:focus-visible { outline-color: var(--champana); }
::selection { background: var(--arena); }
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200; background: var(--carbon); color: var(--calcita);
  padding: 12px 18px; text-decoration: none; font-weight: 600;
}
.skip-link:focus { top: 12px; color: var(--calcita); }
.sr-only { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }

/* 3. Tipografía ------------------------------------------------------------ */
.display, h1, h2, h3, .serif { font-family: var(--serif); font-weight: 400; font-optical-sizing: auto; letter-spacing: -.01em; }
h1, h2, h3, h4, p { margin: 0; }
.display { font-size: clamp(2.6rem, 6.4vw, 5.6rem); line-height: 1.02; letter-spacing: -.025em; font-variation-settings: "SOFT" 30, "WONK" 0; }
h1 { font-size: clamp(2.2rem, 4.6vw, 3.8rem); line-height: 1.06; letter-spacing: -.02em; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.6rem); line-height: 1.12; }
h3 { font-size: clamp(1.25rem, 1.8vw, 1.5rem); line-height: 1.25; }
h4 { font: 600 .8125rem/1.4 var(--sans); letter-spacing: .08em; text-transform: uppercase; }
.eyebrow { font: 600 .75rem/1.4 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--texto-2); }
.folio { font: 400 .875rem/1 var(--serif); font-style: italic; color: var(--arcilla); }
.lede { font-size: clamp(1.0625rem, 1.4vw, 1.25rem); line-height: 1.6; color: var(--texto-2); max-width: 38rem; }
.quote { font-family: var(--serif); font-style: italic; font-size: clamp(1.25rem, 2vw, 1.6rem); line-height: 1.4; }
.small { font-size: .875rem; }
.muted { color: var(--texto-2); }
.mono { font-variant-numeric: tabular-nums; letter-spacing: .04em; }
em { font-style: italic; }
.prose p + p { margin-top: 1em; }
.prose { max-width: 40rem; }

/* 4. Layout ---------------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(64px, 9vw, 128px); }
.section--tight { padding-block: clamp(40px, 6vw, 72px); }
.section--dark { background: var(--umber); color: var(--calcita); }
.section--carbon { background: var(--carbon); color: var(--calcita); }
.section--stone { background: var(--piedra); }
.section--dark .muted, .section--carbon .muted, .section--dark .eyebrow, .section--carbon .eyebrow { color: #CFC6B8; }
.section--dark .lede, .section--carbon .lede { color: #D8D0C4; }
.section-head { display: grid; gap: 14px; margin-bottom: clamp(32px, 4vw, 56px); max-width: 46rem; }
.section-head--split { max-width: none; grid-template-columns: 1fr auto; align-items: end; }
.rule { border: 0; border-top: 1px solid var(--linea); margin: 0; }

/* Estratos: textura de líneas que evoca capas geológicas. Uso decorativo puntual. */
.strata {
  height: 56px;
  background:
    repeating-linear-gradient(180deg, transparent 0 7px, var(--linea-suave) 7px 8px),
    linear-gradient(180deg, transparent 0 60%, var(--linea) 60% calc(60% + 1px), transparent 0);
  mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 15%, #000 85%, transparent);
}

/* 5. Componentes ----------------------------------------------------------- */
/* Botones: una sola acción primaria por vista (sólida). Las demás son secundarias. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 12px 26px; border: 1px solid var(--carbon); border-radius: var(--radio);
  background: var(--carbon); color: var(--calcita); text-decoration: none;
  font: 600 .875rem/1.2 var(--sans); letter-spacing: .06em; transition: background var(--t), color var(--t), border-color var(--t);
}
.btn:hover { background: var(--umber); border-color: var(--umber); color: var(--calcita); }
.btn--ghost { background: transparent; color: var(--carbon); }
.btn--ghost:hover { background: var(--carbon); color: var(--calcita); }
.btn--light { background: var(--calcita); color: var(--carbon); border-color: var(--calcita); }
.btn--light:hover { background: var(--champana); border-color: var(--champana); color: var(--carbon); }
.btn--ghost-light { background: transparent; color: var(--calcita); border-color: rgba(245,243,239,.6); }
.btn--ghost-light:hover { background: var(--calcita); color: var(--carbon); }
.btn--block { width: 100%; }
.btn[disabled], .btn[aria-disabled="true"] { background: var(--piedra); border-color: var(--linea); color: var(--texto-2); cursor: not-allowed; }
.btn .spinner { width: 14px; height: 14px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.link-arrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: .9375rem; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 2px; }
.link-arrow::after { content: "→"; transition: transform var(--t); }
.link-arrow:hover::after { transform: translateX(3px); }

/* Chips de estado: texto + forma, nunca solo color */
.chip { display: inline-flex; align-items: center; gap: 6px; font: 600 .75rem/1 var(--sans); letter-spacing: .04em; padding: 6px 10px; border: 1px solid var(--linea); background: var(--calcita); border-radius: 999px; white-space: nowrap; }
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.chip--ok { color: var(--ok); }
.chip--taller { color: var(--alerta); }
.chip--taller::before { background: transparent; border: 1.5px solid currentColor; }
.chip--plain::before { display: none; }

.tag { display: inline-block; font-size: .8125rem; padding: 4px 10px; border: 1px solid var(--linea); border-radius: 999px; background: var(--calcita); }

/* Marco fotográfico. El encuadre de cada foto viene de los datos (focus). */
.photo { position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--piedra); }
.photo--square { aspect-ratio: 1 / 1; }
.photo--wide { aspect-ratio: 4 / 3; }
.photo img {
  width: 100%; height: 100%; object-fit: cover;
  object-position: var(--fx, 50%) var(--fy, 50%);
  transform: scale(var(--fz, 1)); transform-origin: var(--fx, 50%) var(--fy, 50%);
  transition: transform 600ms cubic-bezier(.2, .6, .2, 1);
}
.photo-empty { position: absolute; inset: 0; display: grid; place-items: center; text-align: center; padding: 24px; color: var(--texto-2); }
.photo-empty svg { width: 34%; max-width: 120px; opacity: .14; margin: 0 auto 14px; }
.photo-empty span { font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }

/* El Meridiano: el eje del isotipo convertido en divisor entre las dos historias */
.meridian { position: relative; width: 1px; background: var(--carbon); justify-self: center; }
.meridian::before { content: ""; position: absolute; left: 50%; top: -14px; width: 5px; height: 22px; transform: translateX(-50%); background: var(--carbon); clip-path: polygon(50% 0, 100% 45%, 60% 100%, 40% 100%, 0 45%); }
.meridian::after { content: ""; position: absolute; left: 50%; bottom: -10px; width: 3px; height: 14px; transform: translateX(-50%); background: var(--carbon); clip-path: polygon(0 0, 100% 0, 50% 100%); }
.on-dark .meridian, .section--dark .meridian, .section--carbon .meridian, .section--dark .meridian::before, .section--dark .meridian::after { background: var(--champana); }

/* Dos historias */
.two-stories { display: grid; grid-template-columns: 1fr 1px 1fr; gap: clamp(28px, 5vw, 72px); align-items: stretch; }
.two-stories > div { display: grid; gap: 16px; align-content: start; }
.two-stories .label { display: flex; align-items: baseline; gap: 12px; }

/* Acordeón nativo */
.accordion details { border-top: 1px solid var(--linea); }
.accordion details:last-child { border-bottom: 1px solid var(--linea); }
.accordion summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 0; min-height: 48px; font-weight: 600; }
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::after { content: "+"; font: 300 1.5rem/1 var(--sans); color: var(--arcilla); }
.accordion details[open] summary::after { content: "–"; }
.accordion .acc-body { padding: 0 0 24px; color: var(--texto-2); max-width: 44rem; }
.accordion .acc-body p + p, .accordion .acc-body ul { margin-top: .75em; }
.accordion .acc-body ul { padding-left: 1.1em; }

/* Formularios */
.field { display: grid; gap: 6px; }
.field label, .field .label { font-weight: 600; font-size: .9375rem; }
.field .hint { font-size: .8125rem; color: var(--texto-2); }
.input, select.input, textarea.input {
  width: 100%; min-height: 48px; padding: 12px 14px; border: 1px solid #8F877C; border-radius: var(--radio);
  background: #FFFDF9; transition: border-color var(--t), box-shadow var(--t);
}
textarea.input { min-height: 112px; resize: vertical; }
.input:hover { border-color: var(--carbon); }
.input:focus-visible { outline: 2px solid var(--arcilla); outline-offset: 1px; border-color: var(--carbon); }
.field.has-error .input { border-color: var(--error); box-shadow: inset 3px 0 0 var(--error); }
.field .error { display: none; color: var(--error); font-size: .875rem; font-weight: 600; }
.field.has-error .error { display: flex; gap: 6px; }
.field.has-error .error::before { content: "!"; display: inline-grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; background: var(--error); color: #fff; font-size: .75rem; flex: none; margin-top: 2px; }
.check { display: flex; gap: 12px; align-items: flex-start; min-height: 44px; padding: 6px 0; cursor: pointer; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--carbon); flex: none; }
.radio-card { display: flex; gap: 12px; align-items: flex-start; padding: 16px; border: 1px solid var(--linea); border-radius: var(--radio); cursor: pointer; background: #FFFDF9; }
.radio-card:has(input:checked) { border-color: var(--carbon); box-shadow: inset 0 0 0 1px var(--carbon); }
.radio-card input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--carbon); flex: none; }

/* Avisos */
.notice { display: flex; gap: 14px; padding: 16px 18px; border: 1px solid var(--linea); background: var(--calcita); border-left: 3px solid var(--carbon); font-size: .9375rem; }
.notice--sim { border-left-color: var(--arcilla); background: #FBF7F1; }
.notice strong { font-weight: 700; }

/* Toast (retroalimentación del sistema) */
.toast-region { position: fixed; z-index: 120; left: 50%; bottom: 24px; transform: translateX(-50%); display: grid; gap: 8px; width: min(92vw, 420px); pointer-events: none; }
.toast { pointer-events: auto; background: var(--carbon); color: var(--calcita); padding: 14px 18px; display: flex; gap: 14px; align-items: center; justify-content: space-between; box-shadow: 0 10px 30px rgba(18,19,20,.25); animation: toast-in 240ms ease-out; }
.toast a { color: var(--champana); font-weight: 600; white-space: nowrap; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* Migas de pan */
.crumbs { font-size: .8125rem; color: var(--texto-2); padding-block: 20px 0; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 8px; color: var(--linea); }
.crumbs a { text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs [aria-current] { color: var(--carbon); }

/* Tarjeta de pieza */
.grid-products { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); gap: clamp(16px, 2.4vw, 32px) clamp(12px, 2vw, 24px); }
.card { position: relative; display: grid; gap: 14px; align-content: start; }
.card .photo { transition: background var(--t); }
.card:hover .photo img { transform: scale(calc(var(--fz, 1) * 1.04)); }
.card .chip { position: absolute; top: 12px; left: 12px; z-index: 1; }
.card-body { display: grid; gap: 4px; }
.card-title { font-family: var(--serif); font-size: 1.1875rem; line-height: 1.3; }
.card-title a { text-decoration: none; }
.card-title a::after { content: ""; position: absolute; inset: 0; z-index: 2; }
.card-meta { font-size: .875rem; color: var(--texto-2); }
.card-price { font-weight: 600; margin-top: 6px; font-variant-numeric: tabular-nums; }
.card-ref { font-size: .6875rem; letter-spacing: .12em; color: var(--texto-2); }

/* Diálogos (bolsa, filtros, menú) */
dialog { border: 0; padding: 0; color: var(--carbon); background: var(--calcita); max-width: none; max-height: none; }
dialog::backdrop { background: rgba(18,19,20,.55); }
.drawer { position: fixed; inset: 0 0 0 auto; margin: 0; width: min(440px, 100vw); height: 100dvh; display: none; flex-direction: column; }
.drawer[open] { display: flex; animation: drawer-in 260ms cubic-bezier(.2,.6,.2,1); }
.drawer--left { inset: 0 auto 0 0; }
@keyframes drawer-in { from { transform: translateX(24px); opacity: .6; } }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 18px var(--gutter); border-bottom: 1px solid var(--linea); }
.drawer-body { flex: 1; overflow: auto; padding: 8px var(--gutter) 24px; }
.drawer-foot { border-top: 1px solid var(--linea); padding: 18px var(--gutter) 24px; display: grid; gap: 12px; background: var(--calcita); }
.icon-btn { display: inline-grid; place-items: center; width: 48px; height: 48px; border: 0; background: transparent; border-radius: 50%; position: relative; }
.icon-btn:hover { background: var(--piedra); color: var(--carbon); }
.icon-btn svg { width: 22px; height: 22px; }
.bag-line { display: grid; grid-template-columns: 76px 1fr auto; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--linea-suave); align-items: start; }
.bag-line .photo { aspect-ratio: 1; }
.bag-line .name { font-family: var(--serif); font-size: 1.0625rem; line-height: 1.3; }
.bag-line button.remove { background: none; border: 0; padding: 8px 0; min-height: 44px; font-size: .8125rem; text-decoration: underline; color: var(--texto-2); }
.bag-line button.remove:hover { color: var(--error); }
.totals { display: grid; gap: 6px; font-variant-numeric: tabular-nums; }
.totals div { display: flex; justify-content: space-between; gap: 16px; }
.totals div > span:last-child { white-space: nowrap; }
.totals .grand { font-weight: 700; font-size: 1.125rem; padding-top: 8px; border-top: 1px solid var(--linea); margin-top: 4px; }
.empty-state { text-align: center; padding: 48px 8px; display: grid; gap: 16px; justify-items: center; }

/* 6. Encabezado y pie ------------------------------------------------------ */
.proto-bar { background: var(--umber); color: #E8DFD0; font-size: .8125rem; text-align: center; padding: 8px var(--gutter); }
.proto-bar a { color: var(--champana); }
.site-header { position: sticky; top: 0; z-index: 60; background: rgba(245,243,239,.96); border-bottom: 1px solid var(--linea); backdrop-filter: saturate(1.2) blur(8px); }
.site-header .wrap { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; min-height: var(--header-h); gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; justify-self: center; padding: 6px; }
.brand .iso { height: 36px; width: auto; }
.brand .word { height: 16px; width: auto; }
.nav-main { display: flex; gap: clamp(16px, 2.2vw, 32px); }
.nav-main a { text-decoration: none; font-size: .9375rem; font-weight: 500; padding: 12px 0; position: relative; }
.nav-main a[aria-current="page"]::after, .nav-main a:hover::after { content: ""; position: absolute; left: 0; right: 0; bottom: 6px; height: 1px; background: currentColor; }
.nav-main a[aria-current="page"] { color: var(--carbon); font-weight: 600; }
.header-actions { display: flex; justify-content: flex-end; gap: 4px; align-items: center; }
.bag-count { position: absolute; top: 6px; right: 4px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 9px; background: var(--carbon); color: var(--calcita); font: 700 .6875rem/18px var(--sans); text-align: center; }
.bag-count[data-n="0"] { display: none; }
.menu-btn { display: none; }
.mobile-nav { display: grid; gap: 4px; padding-top: 12px; }
.mobile-nav a { display: block; font-family: var(--serif); font-size: 1.75rem; text-decoration: none; padding: 10px 0; border-bottom: 1px solid var(--linea-suave); }
.mobile-nav .small-links a { font-family: var(--sans); font-size: 1rem; border: 0; padding: 8px 0; }

.search-panel { border-top: 1px solid var(--linea); background: var(--calcita); }
.search-panel form { display: flex; gap: 12px; padding-block: 16px; }
.search-panel .input { flex: 1; }

.site-footer { background: var(--carbon); color: #D9D1C5; padding-top: clamp(56px, 7vw, 96px); font-size: .9375rem; }
.site-footer a { color: #EDE7DD; text-decoration: none; }
.site-footer a:hover { color: var(--champana); text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 40px; }
.footer-grid h2 { font: 600 .75rem/1.4 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--champana); margin-bottom: 16px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-lock { width: 150px; color: var(--calcita); }
.footer-claim { font-family: var(--serif); font-style: italic; font-size: 1.125rem; color: #EDE7DD; margin-top: 20px; max-width: 18rem; line-height: 1.4; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-top: 1px solid rgba(245,243,239,.14); margin-top: 56px; padding-block: 24px 32px; font-size: .8125rem; color: #B9B0A3; }
.newsletter { display: flex; gap: 8px; margin-top: 16px; }
.newsletter .input { background: transparent; border-color: rgba(245,243,239,.5); color: var(--calcita); }
.newsletter .input::placeholder { color: #A9A094; }

/* 7. Inicio ---------------------------------------------------------------- */
.hero { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(24px, 5vw, 80px); align-items: end; padding-block: clamp(40px, 7vw, 96px) clamp(48px, 7vw, 96px); }
.hero-copy { display: grid; gap: 28px; align-content: end; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-figure { display: grid; gap: 12px; }
.hero-figure figcaption span:last-child { white-space: nowrap; }
.hero-figure figcaption { display: flex; justify-content: space-between; gap: 12px; font-size: .8125rem; color: var(--texto-2); }
.hero-index { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--carbon); }
.hero-index a { display: grid; gap: 6px; padding: 20px 20px 22px 0; text-decoration: none; border-right: 1px solid var(--linea); }
.hero-index a + a { padding-left: 20px; }
.hero-index a:last-child { border-right: 0; }
.hero-index strong { font-family: var(--serif); font-weight: 400; font-size: 1.375rem; }
.hero-index span { font-size: .875rem; color: var(--texto-2); }

/* Escala del tiempo (signature) */
.timescale { display: grid; gap: 24px; }
.timescale-track { position: relative; height: 120px; border-bottom: 1px solid var(--champana); }
.timescale-tick { position: absolute; bottom: 0; transform: translateX(-50%); display: grid; justify-items: center; gap: 8px; text-align: center; width: 140px; }
.timescale-tick::after { content: ""; width: 1px; height: 26px; background: var(--champana); }
.timescale-tick b { font: 400 1.5rem/1 var(--serif); color: var(--calcita); }
.timescale-tick span { font-size: .75rem; line-height: 1.35; color: #CFC6B8; }
.timescale-tick--now b { color: var(--champana); }
.timescale-legend { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: .8125rem; color: #CFC6B8; }

.collection-split { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(12px, 2vw, 24px); }
.tile { position: relative; display: grid; text-decoration: none; }
.tile .photo { aspect-ratio: 3 / 4; }
.tile-label { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding-top: 14px; }
.tile-label strong { font-family: var(--serif); font-weight: 400; font-size: 1.375rem; }
.tile:hover strong { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: .2em; }

.promise-list { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--carbon); }
.promise-list li { list-style: none; padding: 24px 24px 8px 0; border-right: 1px solid var(--linea); display: grid; gap: 10px; align-content: start; }
.promise-list li + li { padding-left: 24px; }
.promise-list li:last-child { border-right: 0; }
.promise-list { padding: 0; margin: 0; }

/* 8. Tienda ---------------------------------------------------------------- */
.shop-head { display: grid; gap: 18px; padding-block: 28px 8px; }
.cat-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.cat-tabs button { min-height: 44px; padding: 10px 18px; border: 1px solid var(--linea); background: transparent; border-radius: 999px; font-weight: 600; font-size: .9375rem; }
.cat-tabs button[aria-pressed="true"] { background: var(--carbon); color: var(--calcita); border-color: var(--carbon); }
.cat-tabs button:hover:not([aria-pressed="true"]) { border-color: var(--carbon); }
.cat-tabs .n { font-weight: 400; opacity: .7; margin-left: 4px; }
.shop-layout { display: grid; grid-template-columns: 260px 1fr; gap: clamp(24px, 4vw, 56px); padding-block: 24px clamp(64px, 8vw, 112px); align-items: start; }
.filters { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: 4px; }
.filters fieldset { border: 0; padding: 0 0 12px; margin: 0; min-width: 0; }
.filters legend { font: 600 .75rem/1.4 var(--sans); letter-spacing: .14em; text-transform: uppercase; padding: 18px 0 8px; display: block; width: 100%; border-top: 1px solid var(--linea); }
.filters .check { font-size: .9375rem; }
.filters .count { color: var(--texto-2); margin-left: auto; font-size: .8125rem; }
.filters .check > span { flex: 1; display: flex; gap: 8px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; padding-bottom: 20px; border-bottom: 1px solid var(--linea); margin-bottom: 28px; }
.toolbar .search { position: relative; flex: 1 1 260px; max-width: 420px; }
.toolbar .search svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 18px; color: var(--texto-2); }
.toolbar .search .input { padding-left: 42px; }
.toolbar select.input { width: auto; min-width: 200px; }
.active-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: -12px 0 24px; }
.active-filters button { display: inline-flex; gap: 8px; align-items: center; min-height: 36px; padding: 6px 12px; border: 1px solid var(--linea); background: var(--piedra); border-radius: 999px; font-size: .8125rem; font-weight: 600; }
.active-filters button::after { content: "×"; font-size: 1rem; line-height: 1; }
.filters-btn { display: none; }
.result-count { font-size: .9375rem; color: var(--texto-2); }

/* 9. Ficha de producto ------------------------------------------------------ */
.pdp { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 5vw, 72px); padding-block: 24px clamp(56px, 8vw, 96px); align-items: start; }
.gallery { display: grid; grid-template-columns: 72px 1fr; gap: 16px; position: sticky; top: calc(var(--header-h) + 16px); }
.gallery .main { position: relative; }
.gallery .main .photo { aspect-ratio: 4 / 5; }
.gallery .thumbs { display: grid; gap: 10px; align-content: start; }
.gallery .thumbs button { padding: 0; border: 1px solid transparent; background: none; }
.gallery .thumbs button[aria-current="true"] { border-color: var(--carbon); }
.gallery .thumbs .photo { aspect-ratio: 1; }
.gallery-nav { position: absolute; bottom: 14px; right: 14px; display: flex; gap: 6px; }
.gallery-nav button { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--linea); background: rgba(245,243,239,.92); display: grid; place-items: center; }
.gallery-counter { position: absolute; bottom: 24px; left: 16px; font-size: .75rem; letter-spacing: .1em; background: rgba(245,243,239,.92); padding: 4px 10px; }
.photo-note { font-size: .8125rem; color: var(--texto-2); margin-top: 10px; }
.buybox { display: grid; gap: 22px; }
.buybox .price { font: 400 1.75rem/1 var(--serif); font-variant-numeric: tabular-nums; }
.buybox .facts { display: grid; grid-template-columns: auto 1fr; gap: 10px 20px; font-size: .9375rem; padding: 18px 0; border-block: 1px solid var(--linea); }
.buybox .facts dt { color: var(--texto-2); }
.buybox .facts dd { margin: 0; }
.buybox .avail { display: grid; gap: 6px; }
.delivery { display: grid; gap: 10px; font-size: .9375rem; }
.delivery li { list-style: none; display: flex; gap: 12px; }
.delivery { padding: 0; margin: 0; }
.delivery svg { width: 20px; height: 20px; flex: none; margin-top: 2px; color: var(--arcilla); }
.passport-link { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; padding: 18px; background: var(--carbon); color: var(--calcita); text-decoration: none; }
.passport-link:hover { color: var(--calcita); background: var(--umber); }
.passport-link svg.iso { width: 30px; color: var(--champana); }
.passport-link small { display: block; color: #CFC6B8; font-size: .8125rem; }
.specs { width: 100%; border-collapse: collapse; font-size: .9375rem; }
.specs th, .specs td { text-align: left; padding: 12px 0; border-bottom: 1px solid var(--linea-suave); vertical-align: top; }
.specs th { font-weight: 400; color: var(--texto-2); width: 42%; padding-right: 16px; }
.pending { color: var(--texto-2); font-style: italic; }
.sticky-buy { display: none; }

/* 10. Atlas ---------------------------------------------------------------- */
.atlas-hero { display: grid; grid-template-columns: 1.2fr 1fr; gap: clamp(24px, 5vw, 80px); align-items: end; padding-block: clamp(40px, 6vw, 88px) 40px; }
.atlas-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--carbon); border-left: 1px solid var(--linea); }
.atlas-card { position: relative; display: grid; gap: 14px; align-content: start; padding: 28px 24px 26px; border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); text-decoration: none; min-height: 300px; transition: background var(--t); }
.atlas-card:hover { background: #FBF9F5; color: var(--carbon); }
.atlas-card .num { font: italic 400 .875rem/1 var(--serif); color: var(--texto-2); }
.atlas-card h3 { font-size: 1.75rem; }
.atlas-card .formula { font-size: .875rem; color: var(--texto-2); }
.atlas-card .swatch { width: 44px; height: 44px; }
.atlas-card .go { margin-top: auto; font-size: .8125rem; font-weight: 600; letter-spacing: .06em; }
.atlas-card--soon { color: var(--texto-2); min-height: 0; }
.atlas-card--soon h3 { font-size: 1.25rem; color: var(--carbon); }
.atlas-soon { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); border-left: 1px solid var(--linea); border-top: 1px solid var(--linea); }
.attr-list { display: flex; flex-wrap: wrap; gap: 6px; }

.mineral-hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 80px); align-items: center; padding-block: clamp(32px, 5vw, 72px); }
.mineral-hero .crystal { color: var(--carbon); max-width: 360px; justify-self: center; width: 100%; }
.crystal-fig figcaption { text-align: center; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--texto-2); margin-top: 12px; }
.mineral-toc { position: sticky; top: var(--header-h); z-index: 20; background: rgba(245,243,239,.96); border-block: 1px solid var(--linea); }
.mineral-toc ol { list-style: none; display: flex; gap: clamp(16px, 3vw, 40px); margin: 0; padding: 0; overflow-x: auto; scrollbar-width: none; }
.mineral-toc a { display: inline-flex; gap: 8px; align-items: baseline; padding: 16px 0; white-space: nowrap; text-decoration: none; font-weight: 600; font-size: .9375rem; border-bottom: 2px solid transparent; }
.mineral-toc a[aria-current="true"] { border-bottom-color: var(--carbon); }
.mineral-toc .folio { font-weight: 400; }
.chapter { padding-block: clamp(56px, 7vw, 104px); border-bottom: 1px solid var(--linea); }
.chapter-head { display: grid; grid-template-columns: 200px 1fr; gap: 24px; margin-bottom: 40px; }
.chapter-head .kind { display: grid; gap: 10px; align-content: start; }
.evidence { display: inline-flex; align-items: center; gap: 8px; font: 700 .6875rem/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; padding: 8px 10px; border: 1px solid currentColor; width: fit-content; }
.evidence--ciencia { color: #2D5547; }
.evidence--historia { color: #5A4A2E; }
.evidence--creencia { color: #7A3E5A; border-style: dashed; }
.datasheet { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--carbon); }
.datasheet div { padding: 18px 18px 18px 0; border-bottom: 1px solid var(--linea); display: grid; gap: 6px; }
.datasheet dt { font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--texto-2); }
.datasheet dd { margin: 0; font-family: var(--serif); font-size: 1.375rem; line-height: 1.25; }
.datasheet .wide { grid-column: span 2; }
.hardness { display: grid; grid-template-columns: repeat(10, 1fr); gap: 3px; margin-top: 8px; }
.hardness span { height: 6px; background: var(--linea-suave); }
.hardness span.on { background: var(--carbon); }
.hardness-scale { display: flex; justify-content: space-between; font-size: .6875rem; color: var(--texto-2); margin-top: 4px; }
.conditions { display: grid; gap: 0; border-top: 1px solid var(--linea); }
.conditions div { display: grid; grid-template-columns: 180px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--linea); }
.conditions dt { color: var(--texto-2); font-size: .9375rem; }
.conditions dd { margin: 0; }
.ages { margin-top: 48px; padding: clamp(24px, 4vw, 40px); background: var(--carbon); color: var(--calcita); display: grid; gap: 24px; }
.ages-chart { display: grid; gap: 14px; }
.age-row { display: grid; grid-template-columns: 220px 1fr; gap: 16px; align-items: center; font-size: .875rem; }
.age-bar { position: relative; height: 28px; border-left: 1px solid rgba(245,243,239,.25); border-right: 1px solid rgba(245,243,239,.25); background: repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), rgba(245,243,239,.08) calc(10% - 1px) 10%); }
.age-bar i { position: absolute; top: 6px; bottom: 6px; background: var(--champana); min-width: 6px; }
.age-axis { display: grid; grid-template-columns: 220px 1fr; gap: 16px; font-size: .75rem; color: #B9B0A3; }
.age-axis div { display: flex; justify-content: space-between; }
.timeline { list-style: none; padding: 0; margin: 0; display: grid; }
.timeline li { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: 20px 0; border-top: 1px solid var(--linea); }
.timeline time, .timeline .t { font: italic 400 1.125rem/1.3 var(--serif); }
.cite { font-size: .75rem; vertical-align: super; text-decoration: none; margin-left: 2px; color: var(--arcilla); font-weight: 700; }
.belief-box { border: 1px dashed #A88A97; padding: clamp(24px, 4vw, 40px); display: grid; gap: 20px; background: #FBF7F6; }
.belief-box ul { margin: 0; padding-left: 1.1em; display: grid; gap: 8px; }
.sources { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-size: .9375rem; }
.sources li { counter-increment: s; display: grid; grid-template-columns: 32px 1fr; }
.sources li::before { content: "[" counter(s) "]"; color: var(--arcilla); font-weight: 700; font-size: .8125rem; }
.sources a { word-break: break-word; }

/* 11. Pasaporte ------------------------------------------------------------ */
.passport-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: clamp(24px, 4vw, 56px); align-items: start; padding-block: 24px clamp(56px, 8vw, 96px); }
.passport { background: #FBF9F5; border: 1px solid var(--linea); position: relative; }
.passport-cover { background: var(--carbon); color: var(--calcita); padding: clamp(28px, 4vw, 48px); display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; }
.passport-cover .iso { width: 54px; color: var(--champana); }
.passport-cover .ids { display: grid; gap: 4px; font-size: .8125rem; letter-spacing: .12em; text-transform: uppercase; color: #CFC6B8; }
.passport-cover .ids b { color: var(--calcita); font-weight: 600; }
.passport-sec { padding: clamp(24px, 4vw, 44px); border-top: 1px solid var(--linea); display: grid; gap: 20px; }
.passport-sec h2 { font-size: 1.5rem; display: flex; gap: 14px; align-items: baseline; }
.pfields { display: grid; }
.pfield { display: grid; grid-template-columns: 180px 1fr auto; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--linea-suave); align-items: baseline; }
.pfield dt { color: var(--texto-2); font-size: .9375rem; }
.pfield dd { margin: 0; }
.passport-mini .pfield { grid-template-columns: 110px 1fr auto; gap: 12px; }
.prov { font: 700 .6875rem/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; padding: 6px 8px; border: 1px solid; white-space: nowrap; }
.prov--lab { color: #2D5547; }
.prov--prov { color: #5A4A2E; }
.prov--obs { color: #2B4A6E; }
.prov--none { color: var(--texto-2); border-style: dashed; }
.known-unknown { display: grid; grid-template-columns: 1fr 1px 1fr; gap: 32px; }
.known-unknown ul { margin: 8px 0 0; padding-left: 1.1em; display: grid; gap: 6px; }
.custody { list-style: none; padding: 0; margin: 0; display: grid; }
.custody li { display: grid; grid-template-columns: 22px 1fr; gap: 16px; padding-bottom: 22px; position: relative; }
.custody li::before { content: ""; width: 11px; height: 11px; border-radius: 50%; border: 2px solid var(--carbon); background: var(--calcita); margin-top: 6px; z-index: 1; }
.custody li.done::before { background: var(--carbon); }
.custody li.next::before { border-style: dashed; }
.custody li:not(:last-child)::after { content: ""; position: absolute; left: 6px; top: 18px; bottom: 0; width: 1px; background: var(--linea); }
.passport-aside { position: sticky; top: calc(var(--header-h) + 16px); display: grid; gap: 20px; }
.qr-card { background: var(--calcita); border: 1px solid var(--linea); padding: 24px; display: grid; gap: 14px; justify-items: center; text-align: center; }
.qr-card img { width: 168px; height: 168px; image-rendering: pixelated; }
.legend { display: grid; gap: 10px; font-size: .875rem; }
.legend div { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; }
.how-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--champana); counter-reset: h; }
.how-steps li { list-style: none; counter-increment: h; padding: 24px 24px 0 0; display: grid; gap: 10px; }
.how-steps li::before { content: "0" counter(h); font: italic 400 1rem/1 var(--serif); color: var(--champana); }
.how-steps { padding: 0; margin: 0; }

/* Checkout */
.checkout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 72px); padding-block: 24px clamp(56px, 8vw, 96px); align-items: start; }
.steps { display: flex; gap: 8px; list-style: none; padding: 0; margin: 0 0 28px; font-size: .875rem; }
.steps li { display: flex; align-items: center; gap: 8px; color: var(--texto-2); }
.steps li + li::before { content: ""; width: 24px; height: 1px; background: var(--linea); }
.steps li[aria-current="step"] { color: var(--carbon); font-weight: 700; }
.steps b { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; border: 1px solid currentColor; font-size: .75rem; }
.steps li[aria-current="step"] b { background: var(--carbon); color: var(--calcita); border-color: var(--carbon); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
.checkout fieldset { border: 0; padding: 0; margin: 0 0 36px; display: grid; gap: 18px; }
.checkout legend { font-family: var(--serif); font-size: 1.5rem; padding: 0; margin-bottom: 18px; }
.summary { background: var(--piedra); padding: clamp(20px, 3vw, 32px); position: sticky; top: calc(var(--header-h) + 16px); display: grid; gap: 16px; }
.error-summary { border: 2px solid var(--error); padding: 16px 18px; background: #FFF6F4; display: none; }
.error-summary.show { display: block; }
.error-summary ul { margin: 8px 0 0; padding-left: 1.1em; }
.error-summary a { color: var(--error); font-weight: 600; }

/* Historia */
.manifesto { font-family: var(--serif); font-size: clamp(1.75rem, 3.6vw, 3rem); line-height: 1.22; letter-spacing: -.015em; max-width: 22ch; }
.columns-2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 80px); }
.is-not { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--champana); }
.is-not div { padding: 24px 24px 0 0; display: grid; gap: 10px; align-content: start; }
.is-not div + div { padding-left: 24px; border-left: 1px solid rgba(197,179,146,.35); }

/* Ayuda */
.help-layout { display: grid; grid-template-columns: 240px 1fr; gap: clamp(24px, 5vw, 72px); padding-block: 24px clamp(56px, 8vw, 96px); align-items: start; }
.help-nav { position: sticky; top: calc(var(--header-h) + 20px); display: grid; gap: 2px; }
.help-nav a { padding: 10px 0 10px 14px; text-decoration: none; border-left: 1px solid var(--linea); font-weight: 500; }
.help-nav a:hover, .help-nav a[aria-current="true"] { border-left: 2px solid var(--carbon); padding-left: 13px; color: var(--carbon); }
.help-sec { padding-bottom: 56px; margin-bottom: 56px; border-bottom: 1px solid var(--linea); display: grid; gap: 20px; }
.help-sec:last-child { border-bottom: 0; }
.legal-note { font-size: .8125rem; color: var(--texto-2); border-left: 2px solid var(--arena); padding-left: 12px; }

/* 12. Responsive ----------------------------------------------------------- */
@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .atlas-grid { grid-template-columns: repeat(2, 1fr); }
  .datasheet { grid-template-columns: repeat(2, 1fr); }
  .promise-list { grid-template-columns: 1fr 1fr; }
  .promise-list li:nth-child(2) { border-right: 0; }
  .promise-list li:nth-child(3) { padding-left: 0; }
  .promise-list li:nth-child(n+3) { border-top: 1px solid var(--linea); }
}
@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .site-header .wrap { grid-template-columns: auto 1fr auto; }
  .nav-main { display: none; }
  .menu-btn { display: inline-grid; }
  .brand { justify-self: center; }
  .brand .word { display: none; }
  .brand .iso { height: 34px; }
  .hero { grid-template-columns: 1fr; }
  .hero-figure { order: -1; }
  .hero-figure .photo { aspect-ratio: 4 / 3.4; }
  .shop-layout { grid-template-columns: 1fr; }
  .filters-desktop { display: none; }
  .filters-btn { display: inline-flex; }
  .pdp { grid-template-columns: 1fr; padding-top: 8px; }
  .gallery { position: static; grid-template-columns: 1fr; }
  .gallery .thumbs { grid-auto-flow: column; grid-auto-columns: 64px; order: 2; overflow-x: auto; }
  .sticky-buy { display: flex; position: fixed; z-index: 50; left: 0; right: 0; bottom: 0; gap: 12px; align-items: center; justify-content: space-between; padding: 12px var(--gutter) calc(12px + env(safe-area-inset-bottom)); background: var(--calcita); border-top: 1px solid var(--linea); transform: translateY(100%); transition: transform var(--t); }
  .sticky-buy.show { transform: none; }
  .sticky-buy .btn { flex: 1; max-width: 260px; }
  .atlas-hero, .mineral-hero { grid-template-columns: 1fr; }
  .mineral-hero .crystal { max-width: 220px; order: -1; }
  .chapter-head { grid-template-columns: 1fr; gap: 14px; }
  .timeline li { grid-template-columns: 1fr; gap: 6px; }
  .passport-wrap, .checkout, .help-layout { grid-template-columns: 1fr; }
  .passport-aside, .summary, .help-nav { position: static; }
  .help-nav { grid-auto-flow: column; overflow-x: auto; border-bottom: 1px solid var(--linea); }
  .help-nav a { border-left: 0; padding: 12px 14px; white-space: nowrap; }
  .help-nav a[aria-current="true"], .help-nav a:hover { border-left: 0; padding-left: 14px; box-shadow: inset 0 -2px 0 var(--carbon); }
  .summary { order: -1; }
  .columns-2 { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 1rem; }
  .two-stories, .known-unknown { grid-template-columns: 1fr; }
  .two-stories .meridian, .known-unknown .meridian { width: 100%; height: 1px; }
  .two-stories .meridian::before, .two-stories .meridian::after, .known-unknown .meridian::before, .known-unknown .meridian::after { display: none; }
  .hero-index { grid-template-columns: 1fr; }
  .hero-index a, .hero-index a + a { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--linea); }
  .collection-split { grid-template-columns: 1fr 1fr; }
  .collection-split .tile:last-child { grid-column: span 2; }
  .collection-split .tile:last-child .photo { aspect-ratio: 16 / 9; }
  .grid-products { grid-template-columns: 1fr 1fr; }
  .card-title { font-size: 1.0625rem; }
  .card .chip { top: 8px; left: 8px; font-size: .6875rem; padding: 5px 8px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .atlas-grid { grid-template-columns: 1fr; }
  .atlas-card { min-height: 0; }
  .datasheet { grid-template-columns: 1fr 1fr; }
  .datasheet dd { font-size: 1.125rem; }
  .conditions div, .age-row, .age-axis { grid-template-columns: 1fr; gap: 6px; }
  .pfield { grid-template-columns: 1fr auto; }
  .passport-cover { grid-template-columns: 1fr; }
  .passport-cover > div { min-width: 0; }
  .passport-wrap > * { min-width: 0; }
  .pfield dd { grid-column: 1 / -1; grid-row: 2; }
  .form-grid { grid-template-columns: 1fr; }
  .promise-list, .is-not, .how-steps { grid-template-columns: 1fr; }
  .promise-list li, .promise-list li + li, .is-not div, .is-not div + div, .how-steps li { padding: 20px 0; border: 0; border-bottom: 1px solid var(--linea); }
  .is-not div + div { border-left: 0; }
  .section-head--split { grid-template-columns: 1fr; }
  .toolbar select.input { min-width: 0; flex: 1; }
  .timescale-track { height: auto; border-bottom: 0; border-left: 1px solid var(--champana); display: grid; gap: 22px; padding: 4px 0 4px 22px; }
  .timescale-tick { position: static; transform: none; width: auto; justify-items: start; text-align: left; gap: 4px; }
  .timescale-tick::after { display: none; }
  .timescale-tick b { font-size: 1.25rem; }
}
@media (max-width: 380px) {
  .grid-products { grid-template-columns: 1fr; }
}