@font-face {
  font-family: "Jost";
  font-style: normal;
  font-display: swap;
  font-weight: 400 900;
  src: url("fonts/jost-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Jost";
  font-style: normal;
  font-display: swap;
  font-weight: 400 900;
  src: url("fonts/jost-latin-ext-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --cal: #fbfbf9;       /* blanco de cal */
  --tinta: #1e1d1b;
  --piedra: #6f6a62;    /* texto secundario */
  --mares: #e6e0d6;     /* líneas y fondos */
  --sabina: #6e4f33;    /* enlaces activos */
  --papel: #ffffff;     /* fondo de planos */
  --line: 1.5px;        /* grosor del trazo del logotipo */
  --gutter: clamp(16px, 4vw, 56px);
  --max: 1440px;
  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.3125rem;
  --step-2: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem);
  --step-3: clamp(2.1rem, 1.3rem + 3.4vw, 4.2rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--cal);
  color: var(--tinta);
  font-family: "Jost", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: var(--step-0);
  line-height: 1.55;
  font-weight: 400;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--sabina); }
:focus-visible { outline: 2px solid var(--sabina); outline-offset: 3px; }
p { margin: 0 0 1em; }
h1, h2, h3 { font-weight: 450; letter-spacing: -0.015em; line-height: 1.1; margin: 0; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: var(--gutter); top: 8px; background: var(--cal); padding: 6px 10px; z-index: 10; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* Cabecera */
.site-head { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-top: 22px; padding-bottom: 22px; }
.brand { display: block; width: 150px; flex: none; color: var(--tinta); }
.brand svg { display: block; width: 100%; height: auto; }
.nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 4px 16px; font-size: 0.9375rem; }
@media (min-width: 700px) { .nav { gap: 4px 26px; font-size: var(--step-0); } }
.nav a { text-decoration: none; padding: 4px 0; }
.nav a[aria-current="page"] { text-decoration: underline; text-decoration-thickness: var(--line); text-underline-offset: 0.35em; }

/* Portada */
.intro { padding-top: clamp(40px, 9vw, 130px); padding-bottom: clamp(40px, 7vw, 100px); }
.intro h1 { font-size: var(--step-3); max-width: 19ch; font-weight: 420; letter-spacing: -0.025em; line-height: 1.04; }
.intro p { margin-top: 1.4em; color: var(--piedra); max-width: 46ch; font-size: var(--step-1); line-height: 1.45; }

.index { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: clamp(24px, 5vw, 72px); padding-bottom: 96px; }
.index ol { list-style: none; margin: 0; padding: 0; }
.index a { display: grid; grid-template-columns: 1fr; gap: 10px; padding: 18px 0 22px; text-decoration: none; }
.index .thumb { aspect-ratio: 4 / 3; overflow: hidden; background: var(--mares); }
.index .thumb img { width: 100%; height: 100%; object-fit: cover; }
.index .name { font-size: clamp(0.96rem, 0.72rem + 0.96vw, 1.44rem); line-height: 1.05; letter-spacing: -0.02em; }
.index .kind { color: var(--piedra); font-size: var(--step--1); }
.index .preview { display: none; }

@media (min-width: 900px) {
  .index { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 4vw, 72px); align-items: stretch; }
  .index a { grid-template-columns: minmax(0, 1fr) minmax(0, 21rem); align-items: baseline; padding: 9px 0; }
  .index .thumb { display: none; }
  .index .kind { text-align: right; }
  .index a:hover .name, .index a:focus-visible .name, .index a.is-active .name { color: var(--sabina); }
  .index .preview { display: block; position: relative; }
  .index .preview figure { position: absolute; inset: 0; margin: 0; background: var(--mares); overflow: hidden; }
  .index .preview img { width: 100%; height: 100%; object-fit: cover; }
}

/* Proyecto */
.back { display: inline-block; margin-top: 8px; font-size: var(--step--1); color: var(--piedra); }
.project-head { display: grid; gap: 24px; padding-top: clamp(28px, 5vw, 64px); padding-bottom: clamp(28px, 4vw, 48px); }
.project-head h1 { font-size: var(--step-3); letter-spacing: -0.025em; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 20px; margin: 0; font-size: var(--step--1); }
.facts dt { color: var(--piedra); }
.facts dd { margin: 0; }
.project-head .meta { display: grid; gap: 18px; }
.project-head .lede { max-width: 60ch; margin: 0; }
@media (min-width: 900px) {
  .project-head { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: end; }
  .project-head .meta { display: grid; gap: 22px; }
}

.cover { margin: 0 0 clamp(12px, 2vw, 24px); }
.cover button, .gallery button, .plans button { all: unset; display: block; width: 100%; cursor: zoom-in; }
.cover button:focus-visible, .gallery button:focus-visible, .plans button:focus-visible { outline: 2px solid var(--sabina); outline-offset: 3px; }
.cover img { width: 100%; max-height: 86vh; object-fit: cover; }

.gallery { columns: 1; column-gap: clamp(12px, 2vw, 24px); }
.gallery figure { margin: 0 0 clamp(12px, 2vw, 24px); break-inside: avoid; background: var(--mares); }
@media (min-width: 700px) { .gallery { columns: 2; } }
@media (min-width: 1200px) { .gallery { columns: 3; } }

.plans-title { font-size: var(--step-1); margin: clamp(48px, 7vw, 96px) 0 18px; padding-top: 14px; border-top: var(--line) solid var(--tinta); }
.plans { display: grid; grid-template-columns: 1fr; gap: clamp(12px, 2vw, 24px); }
@media (min-width: 900px) { .plans { grid-template-columns: 1fr 1fr; } }
.plans figure { margin: 0; background: var(--papel); border: 1px solid var(--mares); padding: clamp(10px, 2vw, 28px); }
.plans figcaption { font-size: var(--step--1); color: var(--piedra); margin-top: 12px; }

.pager { display: flex; justify-content: space-between; gap: 24px; margin-top: clamp(48px, 7vw, 96px); padding-top: 14px; border-top: 1px solid var(--mares); }
.pager a { text-decoration: none; display: grid; gap: 2px; }
.pager span { font-size: var(--step--1); color: var(--piedra); }
.pager strong { font-weight: 450; font-size: var(--step-1); }
.pager .next { text-align: right; margin-left: auto; }

/* Visor */
.viewer { border: 0; padding: 0; margin: 0; width: 100vw; height: 100dvh; max-width: none; max-height: none; background: rgba(251, 251, 249, 0.98); color: var(--tinta); }
.viewer::backdrop { background: rgba(251, 251, 249, 0.98); }
.viewer[open] { display: grid; grid-template-rows: auto 1fr; }
.viewer .bar { display: flex; justify-content: space-between; align-items: center; padding: 12px var(--gutter); font-size: var(--step--1); }
.viewer .bar div { display: flex; gap: 8px; }
.viewer button.ctl { font: inherit; background: none; border: 1px solid var(--mares); color: var(--tinta); padding: 8px 14px; cursor: pointer; }
.viewer button.ctl:hover { border-color: var(--tinta); }
.viewer .stage { display: grid; place-items: center; padding: 0 var(--gutter) var(--gutter); min-height: 0; }
.viewer .stage img { max-width: 100%; max-height: 100%; object-fit: contain; }

/* Páginas de texto */
.page { padding-top: clamp(28px, 5vw, 64px); padding-bottom: 96px; }
.page h1 { font-size: var(--step-3); letter-spacing: -0.025em; max-width: 18ch; margin-bottom: clamp(28px, 4vw, 56px); }
.prose { max-width: 66ch; }
.prose h2 { font-size: var(--step-1); margin: 2.2em 0 0.7em; }
.prose h3 { font-size: var(--step-0); font-weight: 600; margin: 1.6em 0 0.5em; letter-spacing: 0; }
.prose ul { padding-left: 1.2em; margin: 0 0 1em; }
.prose li { margin-bottom: 0.35em; }
.prose .small { font-size: var(--step--1); color: var(--piedra); }
.prose .table { overflow-x: auto; margin: 0 0 1.4em; }
.prose table { border-collapse: collapse; width: 100%; min-width: 34rem; font-size: var(--step--1); line-height: 1.45; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 10px 14px 10px 0; border-bottom: 1px solid var(--mares); }
.prose th { font-weight: 600; border-bottom: var(--line) solid var(--tinta); }
@media (min-width: 900px) {
  .page.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 4vw, 72px); }
  .page.split h1 { position: sticky; top: 24px; align-self: start; }
}

.faq summary { cursor: pointer; list-style: none; padding: 18px 2em 18px 0; font-size: var(--step-1); line-height: 1.3; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 16px; font-size: 1.4em; line-height: 1; color: var(--piedra); }
.faq details[open] summary::after { content: "–"; }
.faq .answer { padding-bottom: 12px; }

.contact .mail { font-size: var(--step-2); letter-spacing: -0.02em; line-height: 1.15; word-break: break-word; }
.contact .note { margin-top: 3em; font-size: var(--step--1); color: var(--piedra); max-width: 60ch; }

/* Pie */
.site-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px 28px; padding-top: 32px; padding-bottom: 36px; font-size: var(--step-0); }
.site-foot p { margin: 0; }
.site-foot .social { display: flex; gap: 22px; align-items: center; }
.site-foot .social a, .site-foot .social span { display: block; width: 26px; height: 26px; color: var(--tinta); }
.site-foot .social a:hover { color: var(--sabina); }
.site-foot .social svg { width: 100%; height: 100%; display: block; }
.site-foot .social .todo { opacity: 0.35; }

@media (prefers-reduced-motion: no-preference) {
  .index .preview img { transition: opacity 0.25s ease; }
  .index .preview img.is-loading { opacity: 0.25; }
}

@media (min-width: 700px) { .brand { width: 190px; } }

/* Estudio: texto y fotos de obra */
.studio { display: grid; gap: 32px; }
.studio .photos { display: grid; gap: clamp(12px, 2vw, 24px); }
.studio .photos figure { margin: 0; background: var(--mares); }
@media (min-width: 900px) {
  .studio { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 96px); align-items: start; }
  .studio .photos { padding-top: 0.4em; }
}

.studio .prose h1 { margin-bottom: clamp(28px, 4vw, 56px); }
.studio .photos.sketch figure { background: none; }
.studio .photos.sketch img { mix-blend-mode: multiply; }

@media (max-width: 699px) {
  .site-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .nav { justify-content: flex-start; gap: 6px 18px; }
}

/* Contacto (formato de la web antigua) */
.contact > * { max-width: 62rem; }
.contact h1, .contact h2 { font-size: var(--step-1); font-weight: 600; letter-spacing: 0; max-width: none; margin: 0 0 0.8em; }
.contact .mail { margin-top: 1.2em; }
.contact strong { font-weight: 600; }
.contact .social { display: flex; gap: 18px; margin: 28px 0 40px; }
.contact .social a, .contact .social span { display: block; width: 26px; height: 26px; color: var(--tinta); }
.contact .social svg { width: 100%; height: 100%; display: block; }
.contact .mail { font-size: var(--step-2); letter-spacing: -0.01em; margin: 0.4em 0 0; word-break: break-word; }
.contact .mail a { text-decoration: none; }
.contact .mail a:hover { text-decoration: underline; }
.contact .note { font-size: var(--step--1); color: var(--piedra); }

/* Proyecto: texto y galería en filas que respetan el orden */
.project-text { max-width: 68ch; margin: clamp(28px, 4vw, 56px) 0; }
.gallery { columns: auto; display: flex; flex-wrap: wrap; gap: clamp(10px, 1.4vw, 18px); }
.gallery figure { margin: 0; break-inside: auto; background: var(--mares); flex: 1 1 100%; }
.gallery figure.plan { background: var(--papel); }
.gallery figure.plan img { mix-blend-mode: multiply; }
.gallery figcaption { font-size: var(--step--1); color: var(--piedra); padding: 8px 0 0; background: var(--cal); }
@media (min-width: 700px) {
  .gallery figure { flex: var(--r) 1 calc(var(--r) * 300px); }
  .gallery::after { content: ""; flex: 10 1 0; }
}

/* Texto intercalado con las fotos, a todo el ancho */
.project-body { display: grid; gap: clamp(10px, 1.4vw, 18px); }
.project-body .ptext { margin: clamp(18px, 3vw, 40px) 0; max-width: none; font-size: var(--step-0); line-height: 1.65; }
.cover { margin-bottom: 0; }