/* BAU+ — Monolith. Fondo tinta, tipografía oversized, índice con hover. */

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: #DB5A30; color: #fff; }

:root {
  --ink: #1C1C1C;
  --ink-2: #232220;
  --paper: #F4EFE9;
  --stone: #8F8880;
  --accent: #DB5A30;
  --line: rgba(244, 239, 233, 0.12);
  --font-display: 'Archivo Black', sans-serif;
  --font-body: 'Archivo', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --pad-x: clamp(20px, 4vw, 56px);
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px; line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

.mono {
  font: 500 11px/1.4 var(--font-mono);
  letter-spacing: 0.15em; text-transform: uppercase;
}

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center;
  gap: 32px;
  padding: 18px var(--pad-x);
  background: rgba(28, 28, 28, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav .brand {
  font-family: var(--font-display);
  font-size: 20px; letter-spacing: -0.01em; color: var(--paper);
}
.nav .brand b { color: var(--accent); font-weight: inherit; }
.nav .links { display: flex; gap: 28px; justify-content: center; }
.nav .links a {
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--stone); padding: 6px 0; position: relative;
  transition: color .15s;
}
.nav .links a:hover, .nav .links a.active { color: var(--paper); }
.nav .links a.active::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -20px;
  height: 2px; background: var(--accent);
}
.nav .meta {
  font: 500 11px/1 var(--font-mono);
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--stone);
}

/* ---------- HERO ---------- */
.hero { padding: clamp(40px, 6vw, 72px) var(--pad-x) 0; }
.hero .big {
  font-family: var(--font-display);
  font-size: clamp(88px, 19vw, 300px);
  line-height: 0.82; letter-spacing: -0.04em;
  color: var(--paper);
  text-transform: uppercase;
}
.hero .big b { color: var(--accent); font-weight: inherit; }

.hero-grid {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px;
  padding: clamp(40px, 6vw, 80px) var(--pad-x);
  border-bottom: 1px solid var(--line);
}
.hero-grid .col-a { grid-column: 1 / span 3; }
.hero-grid .col-b { grid-column: 5 / span 4; }
.hero-grid .col-c { grid-column: 10 / span 3; text-align: right; }
.kicker {
  font: 500 11px/1.2 var(--font-mono);
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--stone); margin-bottom: 14px;
}
.lede { font-size: clamp(15px, 1.1vw, 17px); line-height: 1.5; color: var(--paper); }
.lede em { font-style: italic; color: var(--accent); }
.access-link {
  display: block;
  font-family: var(--font-body); font-size: clamp(15px, 1.1vw, 17px);
  color: var(--paper); text-decoration: underline;
  text-underline-offset: 4px; text-decoration-thickness: 1px;
  margin-bottom: 10px; transition: color .15s;
}
.access-link:hover { color: var(--accent); }

/* ---------- FILTROS ---------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 24px var(--pad-x) 4px;
}
.filter-bar button {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--stone); padding: 9px 14px;
  border: 1px solid var(--line);
  transition: color .15s, border-color .15s, background .15s;
}
.filter-bar button:hover { color: var(--paper); border-color: rgba(244,239,233,.35); }
.filter-bar button.on { color: var(--ink); background: var(--paper); border-color: var(--paper); }

/* ---------- ÍNDICE ---------- */
.index { position: relative; padding: 0 var(--pad-x) clamp(40px, 6vw, 80px); }
.index .head {
  display: grid; grid-template-columns: 64px 1fr 140px 72px 96px;
  gap: 24px; padding: 20px 0;
  border-bottom: 1px solid rgba(244, 239, 233, 0.28);
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--stone);
}
.index .row {
  display: grid; grid-template-columns: 64px 1fr 140px 72px 96px;
  gap: 24px; align-items: center;
  padding: clamp(13px, 1.6vw, 20px) 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .22s;
}
.index .row:hover { padding-left: 12px; }
.index .row .num { font: 500 12px/1 var(--font-mono); letter-spacing: 0.1em; color: var(--stone); }
.index .row .name {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 38px); line-height: 1;
  letter-spacing: -0.01em; text-transform: uppercase;
  color: var(--paper);
  transition: color .18s, transform .18s;
}
.index .row:hover .name { color: var(--accent); transform: translateX(8px); }
.index .row .loc, .index .row .yr, .index .row .area {
  font: 500 12px/1 var(--font-mono); letter-spacing: 0.08em; color: var(--stone);
}
.index .row:hover .loc, .index .row:hover .yr, .index .row:hover .area { color: var(--paper); }

.hover-preview {
  position: fixed; pointer-events: none; z-index: 40;
  width: 360px; opacity: 0; transition: opacity .2s;
  transform: translate(-50%, -55%);
}
.hover-preview.visible { opacity: 1; }
.hover-preview .hp-box {
  aspect-ratio: 4 / 3; overflow: hidden;
  background: var(--ink-2);
  background-size: cover; background-position: center;
  border: 1px solid rgba(244, 239, 233, 0.14);
  display: flex; flex-direction: column; align-items: flex-start;
  justify-content: flex-end; gap: 4px; padding: 14px;
  font: 500 10px/1.4 var(--font-mono); letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--stone);
}
.hover-preview .hp-box.has-img { border-color: rgba(244, 239, 233, 0.3); }
.hover-preview .hp-box .m { color: rgba(143, 136, 128, 0.75); }

/* ---------- ARCHIVO ---------- */
.archive { padding: clamp(40px, 6vw, 72px) var(--pad-x) clamp(48px, 7vw, 96px); }
.archive .sec-title {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--stone); margin-bottom: 8px;
}
.archive .sec-sub { font-size: 13px; color: var(--stone); margin-bottom: 28px; max-width: 52ch; }
.arch-head, .arch-row {
  display: grid; grid-template-columns: 64px 1fr 130px 140px 96px;
  gap: 24px; align-items: baseline; padding: 10px 0;
}
.arch-head {
  border-bottom: 1px solid rgba(244, 239, 233, 0.28);
  font: 500 10px/1 var(--font-mono); letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--stone);
}
.arch-row {
  border-bottom: 1px dotted rgba(244, 239, 233, 0.14);
  font: 500 12px/1.4 var(--font-mono); letter-spacing: 0.04em; color: var(--stone);
}
.arch-row .name { color: var(--paper); font-family: var(--font-body); font-weight: 600; font-size: 14px; letter-spacing: 0; }

/* ---------- PÁGINA DE PROYECTO ---------- */
.proj-head {
  padding: clamp(40px, 7vw, 96px) var(--pad-x) clamp(32px, 5vw, 64px);
  display: grid; grid-template-columns: 2fr 1fr; gap: 48px; align-items: end;
  border-bottom: 1px solid var(--line);
}
.proj-head .back {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--stone); display: inline-block; margin-bottom: 28px;
}
.proj-head .back:hover { color: var(--accent); }
.proj-head .num {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--stone); margin-bottom: 12px; display: block;
}
.proj-head h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 92px); line-height: 0.95;
  letter-spacing: -0.02em; text-transform: uppercase;
}
.proj-head .meta-grid {
  display: grid; grid-template-columns: auto 1fr; gap: 8px 24px;
  font: 500 12px/1.4 var(--font-mono); letter-spacing: 0.04em;
}
.proj-head .meta-grid .lbl {
  color: var(--stone); text-transform: uppercase; font-size: 10px;
  letter-spacing: 0.12em; padding-top: 3px;
}
.proj-head .meta-grid .val { color: var(--paper); }

.proj-gallery {
  padding: clamp(32px, 5vw, 64px) var(--pad-x) clamp(48px, 7vw, 96px);
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px;
}
.proj-gallery .shot { position: relative; overflow: hidden; background: var(--ink-2); }
.proj-gallery .shot img { width: 100%; height: 100%; object-fit: cover; }
.shot--wide { grid-column: span 12; aspect-ratio: 16 / 8; }
.shot--half { grid-column: span 6; aspect-ratio: 4 / 3; }
.shot--pending {
  display: flex; align-items: center; justify-content: center;
  color: var(--stone);
  font: 500 12px/1.6 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase;
  border: 1px dashed rgba(244, 239, 233, 0.18);
  background: transparent;
}
.proj-gallery .cap {
  position: absolute; left: 12px; bottom: 12px;
  font: 500 10px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: #fff; background: rgba(0, 0, 0, 0.55); padding: 6px 9px;
  backdrop-filter: blur(2px);
}
.proj-empty {
  padding: 120px var(--pad-x); text-align: center; color: var(--stone);
  font: 500 13px/1.6 var(--font-mono);
}
.proj-empty a { color: var(--accent); }
.proj-nav {
  display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center;
  padding: 32px var(--pad-x);
  border-top: 1px solid var(--line);
  font: 500 11px/1.4 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase;
}
.proj-nav a { color: var(--paper); }
.proj-nav a:hover { color: var(--accent); }
.proj-nav .nx { text-align: right; }
.proj-nav .mid { color: var(--stone); font-size: 10px; }
.proj-nav .arrow { color: var(--stone); margin: 0 6px; }

/* ---------- ESTUDIO ---------- */
.about-hero {
  padding: clamp(40px, 6vw, 80px) var(--pad-x);
  border-bottom: 1px solid var(--line);
}
.about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(44px, 8vw, 120px); line-height: 0.85;
  letter-spacing: -0.03em; text-transform: uppercase;
  max-width: 14ch;
}
.about-hero h1 b { color: var(--accent); font-weight: inherit; }
.about-body {
  padding: clamp(40px, 6vw, 80px) var(--pad-x);
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 24px;
  border-bottom: 1px solid var(--line);
}
.about-body .lbl {
  grid-column: 1 / span 3;
  font: 500 11px/1.4 var(--font-mono); letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--stone);
}
.about-body .txt { grid-column: 5 / span 7; font-size: clamp(17px, 1.3vw, 20px); line-height: 1.45; }
.about-body .txt p + p { margin-top: 16px; }
.about-body .txt em { color: var(--accent); font-style: italic; }

.stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  padding: clamp(24px, 3vw, 40px) var(--pad-x);
  border-bottom: 1px solid var(--line);
}
.stats .k {
  font: 500 10px/1 var(--font-mono); letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--stone); margin-bottom: 10px;
}
.stats .v {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 34px); letter-spacing: -0.01em;
}

.studio-photo { padding: clamp(32px, 4vw, 64px) var(--pad-x); border-bottom: 1px solid var(--line); }
.studio-photo figure { position: relative; overflow: hidden; }
.studio-photo img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }
.studio-photo .cap {
  position: absolute; left: 14px; bottom: 14px;
  font: 500 10px/1 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase;
  color: #fff; background: rgba(0, 0, 0, 0.55); padding: 6px 9px;
}

.team-section { padding: clamp(32px, 4vw, 64px) var(--pad-x) clamp(48px, 6vw, 88px); }
.team-section .sec-title {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--stone); margin-bottom: 32px;
}
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-grid .mem { padding: 20px 0; border-top: 1px solid var(--line); }
.team-grid .mem .nm {
  font-family: var(--font-display); font-size: 20px; line-height: 1.15;
  letter-spacing: -0.01em; margin-bottom: 6px;
}
.team-grid .mem .rl {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--stone);
}

/* ---------- CONTACTO ---------- */
.contact-hero { padding: clamp(40px, 6vw, 80px) var(--pad-x) clamp(24px, 3vw, 40px); }
.contact-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(64px, 14vw, 220px); line-height: 0.82;
  letter-spacing: -0.04em; text-transform: uppercase;
}
.contact-hero h1 b { color: var(--accent); font-weight: inherit; }
.contact-hero .lede { max-width: 52ch; margin-top: 24px; color: var(--stone); }
.contact-grid {
  padding: clamp(24px, 3vw, 40px) var(--pad-x) clamp(48px, 7vw, 96px);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.contact-grid .card { padding: 32px 0 0; border-top: 1px solid rgba(244, 239, 233, 0.25); }
.contact-grid .card h4 {
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--stone); margin-bottom: 16px;
}
.contact-grid .card .big {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 28px); line-height: 1.15; letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}
.contact-grid .card a.big:hover { color: var(--accent); }
.cta-btn {
  display: inline-block; margin-top: 18px;
  padding: 15px 26px; background: var(--accent); color: var(--paper);
  font: 500 12px/1 var(--font-mono); letter-spacing: 0.15em; text-transform: uppercase;
  transition: background .15s, color .15s;
}
.cta-btn:hover { background: var(--paper); color: var(--ink); }
.cta-btn--ghost { background: transparent; border: 1px solid rgba(244, 239, 233, 0.3); }
.cta-btn--ghost:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

/* ---------- CTA flotante WhatsApp ---------- */
.wa-fab {
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  padding: 13px 18px; background: var(--accent); color: var(--paper);
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.14em; text-transform: uppercase;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
  transition: background .15s, color .15s;
}
.wa-fab:hover { background: var(--paper); color: var(--ink); }

/* ---------- FOOTER ---------- */
.foot {
  border-top: 1px solid var(--line);
  padding: clamp(32px, 4vw, 56px) var(--pad-x);
  display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 32px;
  color: var(--stone); font-size: 13px; line-height: 1.6;
}
.foot h4 {
  font: 500 10px/1 var(--font-mono); letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--paper); margin-bottom: 12px;
}
.foot .brand {
  font-family: var(--font-display); font-size: 44px; line-height: 0.9;
  color: var(--paper); margin-bottom: 14px; letter-spacing: -0.02em;
}
.foot .brand b { color: var(--accent); }
.foot a:hover { color: var(--paper); }
.foot .bottom {
  grid-column: 1 / -1; margin-top: 32px; padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between;
  font: 500 11px/1 var(--font-mono); letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--stone);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .nav { grid-template-columns: auto 1fr; gap: 16px; }
  .nav .links { justify-content: flex-end; gap: 16px; }
  .nav .links a.active::after { display: none; }
  .nav .meta { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-grid .col-a, .hero-grid .col-b, .hero-grid .col-c { grid-column: 1 / -1; text-align: left; }
  .index .head, .index .row { grid-template-columns: 40px 1fr 72px; }
  .index .head .loc, .index .head .area, .index .row .loc, .index .row .area { display: none; }
  .arch-head, .arch-row { grid-template-columns: 52px 1fr 80px; }
  .arch-head .type, .arch-head .loc, .arch-row .type, .arch-row .loc { display: none; }
  .hover-preview { display: none; }
  .proj-head { grid-template-columns: 1fr; gap: 32px; }
  .shot--half { grid-column: span 12; }
  .about-body { grid-template-columns: 1fr; }
  .about-body .lbl, .about-body .txt { grid-column: 1 / -1; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .foot { grid-template-columns: 1fr 1fr; }
}