/* Estudio Meridiano — demo arquitectura (14-jul-2026)
   Estética: minimal suizo. Blanco roto + grafito + UN rojo. Space Grotesk.
   Grid visible, reglas finas, numeración, blancos generosos. */

@font-face {
  font-family: 'Space Grotesk';
  src: url('/assets/fonts/spacegrotesk-var.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('/assets/fonts/inter-var.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f5f5f3;
  --ink: #1a1a1a;
  --ink-soft: #6d6d68;
  --red: #e63312;
  --line: rgba(26, 26, 26, .14);
  --grot: 'Space Grotesk', system-ui, sans-serif;
  --sans: 'Inter', system-ui, sans-serif;
  --pad: clamp(20px, 5vw, 72px);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--red); color: var(--paper); }
img, video, canvas { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* reglas verticales del grid, siempre visibles */
.rules { position: fixed; inset: 0; pointer-events: none; z-index: 0; display: flex; }
.rules i { flex: 1; border-left: 1px solid rgba(26, 26, 26, .05); }
.rules i:first-child { border-left: 0; margin-left: var(--pad); }
.rules i:last-child { border-right: 1px solid rgba(26, 26, 26, .05); margin-right: var(--pad); }

/* ---------- tipografía ---------- */
.kicker {
  font-family: var(--grot); font-size: 11.5px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--ink-soft); font-weight: 500; margin-bottom: 18px;
}
.kicker::before { content: '— '; color: var(--red); }
h1, h2, h3 { font-family: var(--grot); font-weight: 500; line-height: 1.02; letter-spacing: -.03em; }
h2 { font-size: clamp(34px, 4.8vw, 62px); }
h1 em, h2 em { font-style: normal; color: var(--red); }
h3 { font-size: 24px; }

/* ---------- reveals ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .75s ease, transform .75s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 15px 30px;
  font-family: var(--grot); font-size: 14px; font-weight: 600; letter-spacing: .04em;
  border-radius: 2px;
  transition: background .3s, color .3s, border-color .3s, transform .3s;
}
.btn:hover { transform: translateY(-2px); }
.btn-solid { background: var(--ink); color: var(--paper); }
.btn-solid:hover { background: var(--red); }
.btn-ghost { border: 1px solid var(--ink); color: var(--ink); }
.btn-ghost:hover { border-color: var(--red); color: var(--red); }
.btn-lg { padding: 19px 38px; font-size: 15px; }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 60;
  display: flex; align-items: center; gap: 34px;
  padding: 18px var(--pad);
  border-bottom: 1px solid transparent;
  transition: background .35s, border-color .35s, padding .35s;
}
.nav.scrolled {
  background: rgba(245, 245, 243, .92);
  backdrop-filter: blur(10px);
  border-bottom-color: var(--line);
  padding-top: 12px; padding-bottom: 12px;
}
.nav-logo { font-family: var(--grot); font-size: 22px; font-weight: 600; letter-spacing: -.03em; margin-right: auto; }
.nav-logo span { color: var(--red); font-size: 13px; vertical-align: super; }
.nav-links { display: flex; gap: 28px; font-family: var(--grot); font-size: 14px; font-weight: 500; }
.nav-links a { color: var(--ink-soft); padding: 4px 0; position: relative; transition: color .25s; }
.nav-links a:hover { color: var(--ink); }
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 0;
  background: var(--red); transition: width .3s;
}
.nav-links a:hover::after { width: 100%; }
.nav-meta { font-family: var(--grot); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); }
.burger { display: none; }

/* menú móvil */
.menu {
  position: fixed; inset: 0; z-index: 55; background: var(--paper);
  display: flex; flex-direction: column; justify-content: center; gap: 8px;
  padding: var(--pad);
  opacity: 0; pointer-events: none; transition: opacity .35s;
}
.menu.open { opacity: 1; pointer-events: auto; }
.menu-list li { border-bottom: 1px solid var(--line); }
.menu-list li a {
  display: flex; align-items: baseline; gap: 18px;
  font-family: var(--grot); font-weight: 500; letter-spacing: -.02em;
  font-size: clamp(36px, 9vw, 54px); padding: 16px 0;
}
.menu-list small { font-family: var(--grot); font-size: 12px; color: var(--red); }
.menu-foot { margin-top: 42px; display: flex; flex-direction: column; gap: 8px; color: var(--ink-soft); }
.menu-foot a { color: var(--red); font-weight: 600; }

/* ---------- hero ---------- */
.hero {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 4vw, 64px);
  align-items: center;
  min-height: 100svh;
  padding: clamp(110px, 16vh, 150px) var(--pad) 60px;
}
.hero-title {
  font-size: clamp(52px, 8vw, 112px);
  margin: 8px 0 26px;
}
.hero-title .line { display: block; overflow: hidden; }
.hero-title .line i {
  display: block; font-style: normal;
  transform: translateY(108%);
  animation: rise .9s cubic-bezier(.2,.7,.2,1) forwards;
}
.hero-title .line:nth-child(2) i { animation-delay: .1s; }
.hero-title .line:nth-child(3) i { animation-delay: .2s; }
@keyframes rise { to { transform: none; } }
@media (prefers-reduced-motion: reduce) { .hero-title .line i { animation: none; transform: none; } }
.hero-sub { max-width: 46ch; color: var(--ink-soft); font-size: 17px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.hero-media video { width: 100%; aspect-ratio: 4 / 4.4; object-fit: cover; border: 1px solid var(--ink); }
.hero-media figcaption {
  display: flex; gap: 12px; margin-top: 10px;
  font-family: var(--grot); font-size: 12px; letter-spacing: .06em; color: var(--ink-soft);
}
.hero-media figcaption span { color: var(--red); }

/* ---------- índice de proyectos ---------- */
.idx { padding: clamp(70px, 11vh, 130px) var(--pad); position: relative; z-index: 1; }
.idx-head { margin-bottom: 50px; }
.idx-list { border-top: 1px solid var(--ink); }
.idx-row {
  display: grid; grid-template-columns: 70px 220px 1.4fr 1fr; gap: clamp(18px, 3vw, 44px);
  align-items: center;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.idx-row:hover { background: rgba(26, 26, 26, .025); }
.idx-num { font-family: var(--grot); font-size: 15px; color: var(--red); }
.idx-media { aspect-ratio: 16 / 10; overflow: hidden; }
.idx-media video { width: 100%; height: 100%; object-fit: cover; filter: grayscale(.25); transition: filter .5s, transform 1s cubic-bezier(.2,.7,.2,1); }
.idx-row:hover .idx-media video { filter: none; transform: scale(1.04); }
.idx-info h3 { font-size: clamp(22px, 2.2vw, 30px); }
.idx-info p { margin-top: 6px; font-size: 14px; color: var(--ink-soft); max-width: 48ch; }
.idx-meta { display: grid; gap: 6px; justify-self: end; min-width: 190px; }
.idx-meta div { display: flex; justify-content: space-between; gap: 16px; font-family: var(--grot); font-size: 12.5px; }
.idx-meta dt { color: var(--ink-soft); letter-spacing: .1em; text-transform: uppercase; font-size: 10.5px; }
.idx-more { margin-top: 40px; }

/* ---------- manifiesto ---------- */
.manifesto { min-height: 150vh; position: relative; }
.manifesto-sticky {
  position: sticky; top: 0; min-height: 100svh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 0 var(--pad);
}
.manifesto-text {
  max-width: 24ch;
  font-family: var(--grot); font-weight: 500; letter-spacing: -.02em;
  font-size: clamp(30px, 5.2vw, 62px); line-height: 1.12;
}
.manifesto-text .w { color: rgba(26, 26, 26, .14); transition: color .35s; }
.manifesto-text .w.lit { color: var(--ink); }

/* ---------- 3D maqueta ---------- */
.model {
  display: grid; grid-template-columns: 1.1fr .9fr; align-items: center;
  gap: clamp(30px, 4vw, 70px);
  padding: clamp(70px, 11vh, 130px) var(--pad);
  border-block: 1px solid var(--line);
  position: relative; z-index: 1;
  background: #ecece9;
}
.model-stage { position: relative; aspect-ratio: 1.1; }
.model-stage canvas { width: 100%; height: 100%; cursor: grab; }
.model-stage canvas:active { cursor: grabbing; }
.model-hint {
  position: absolute; bottom: 4%; left: 50%; transform: translateX(-50%);
  font-family: var(--grot); font-size: 11.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft);
}
.model-copy > p { margin-top: 20px; color: var(--ink-soft); }
.model-list { margin-top: 22px; display: grid; gap: 12px; }
.model-list li { padding-left: 26px; position: relative; color: var(--ink-soft); font-size: 15px; }
.model-list li::before { content: '□'; position: absolute; left: 0; color: var(--red); font-size: 13px; }

/* ---------- proceso ---------- */
.proc { padding: clamp(70px, 11vh, 130px) var(--pad); position: relative; z-index: 1; }
.proc-list { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(18px, 2.5vw, 34px); }
.proc-list li { border-top: 2px solid var(--ink); padding-top: 20px; }
.proc-list li span { font-family: var(--grot); font-size: 14px; color: var(--red); }
.proc-list h3 { margin: 10px 0 8px; font-size: 21px; }
.proc-list p { font-size: 14px; color: var(--ink-soft); }

/* ---------- CTA ---------- */
.cta {
  padding: clamp(80px, 13vh, 150px) var(--pad);
  text-align: center;
  background: var(--ink); color: var(--paper);
  position: relative; z-index: 1;
}
.cta .kicker { color: rgba(245, 245, 243, .6); }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin: 36px 0 22px; }
.cta .btn-solid { background: var(--red); color: var(--paper); }
.cta .btn-solid:hover { background: var(--paper); color: var(--ink); }
.cta .btn-ghost { border-color: rgba(245, 245, 243, .4); color: var(--paper); }
.cta .btn-ghost:hover { border-color: var(--red); color: var(--red); }
.cta-note { font-size: 13.5px; color: rgba(245, 245, 243, .6); }

/* ---------- footer ---------- */
.footer { padding: 64px var(--pad) 30px; border-top: 1px solid var(--line); position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: clamp(26px, 4vw, 60px); margin-bottom: 50px; }
.footer-logo { font-family: var(--grot); font-size: 24px; font-weight: 600; letter-spacing: -.03em; }
.footer-logo span { color: var(--red); font-size: 13px; vertical-align: super; }
.footer-brand p { margin-top: 14px; font-size: 14px; color: var(--ink-soft); max-width: 34ch; }
.footer-col h4 {
  font-family: var(--grot); font-size: 11px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 16px; font-weight: 600;
}
.footer-col li { font-size: 14.5px; color: var(--ink-soft); padding: 4px 0; }
.footer-col a:hover { color: var(--red); }
.footer-legal {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding-top: 24px; border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--ink-soft);
}
.footer-legal a:hover { color: var(--red); }

/* ---------- interiores ---------- */
.page-hero { padding: clamp(140px, 22vh, 200px) var(--pad) clamp(40px, 7vh, 70px); max-width: 980px; position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(44px, 7vw, 96px); margin: 8px 0 20px; letter-spacing: -.035em; }
.page-hero p { color: var(--ink-soft); font-size: 17px; max-width: 54ch; }

.plist { padding: 20px var(--pad) clamp(70px, 10vh, 110px); position: relative; z-index: 1; }

.sheet { padding: 20px var(--pad) clamp(70px, 10vh, 110px); display: grid; grid-template-columns: 1.3fr .7fr; gap: clamp(26px, 4vw, 64px); align-items: start; position: relative; z-index: 1; }
.sheet-media video { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border: 1px solid var(--ink); }
.sheet-media figcaption { display: flex; gap: 12px; margin-top: 10px; font-family: var(--grot); font-size: 12px; color: var(--ink-soft); }
.sheet-media figcaption span { color: var(--red); }
.sheet-side { position: sticky; top: 100px; border: 1px solid var(--ink); }
.sheet-side dl { display: grid; }
.sheet-side div { display: flex; justify-content: space-between; gap: 14px; padding: 15px 20px; border-bottom: 1px solid var(--line); }
.sheet-side div:last-child { border-bottom: 0; }
.sheet-side dt { font-family: var(--grot); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }
.sheet-side dd { font-family: var(--grot); font-size: 14px; text-align: right; }
.sheet-body { grid-column: 1; margin-top: 30px; max-width: 68ch; color: var(--ink-soft); display: grid; gap: 16px; }
.sheet-body h2 { font-size: 28px; color: var(--ink); margin-top: 10px; }

.people { padding: 0 var(--pad) clamp(70px, 10vh, 110px); display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.5vw, 30px); position: relative; z-index: 1; }
.person { border-top: 2px solid var(--ink); padding-top: 20px; }
.person span { font-family: var(--grot); font-size: 13px; color: var(--red); }
.person h3 { margin: 8px 0 2px; font-size: 22px; }
.person small { display: block; font-family: var(--grot); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); margin-bottom: 12px; }
.person p { font-size: 14px; color: var(--ink-soft); }

.contact { padding: 20px var(--pad) clamp(70px, 10vh, 110px); display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(26px, 4vw, 64px); align-items: start; position: relative; z-index: 1; }
.cform { border: 1px solid var(--ink); padding: clamp(28px, 4vw, 48px); display: grid; gap: 18px; background: var(--paper); }
.cform label { font-family: var(--grot); font-size: 11px; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); display: grid; gap: 8px; }
.cform input, .cform select, .cform textarea {
  font: 500 16px var(--sans); color: var(--ink);
  background: transparent; border: 0; border-bottom: 1px solid var(--ink);
  padding: 10px 2px; outline: none; transition: border-color .3s; width: 100%;
  border-radius: 0;
}
.cform input:focus, .cform select:focus, .cform textarea:focus { border-color: var(--red); }
.cform button { border: 0; cursor: pointer; margin-top: 8px; }
.form-ok { text-align: center; padding: 40px 10px; }
.form-ok b { font-family: var(--grot); font-size: 28px; display: block; margin-bottom: 10px; color: var(--red); }
.form-ok p { color: var(--ink-soft); }
.cinfo { display: grid; gap: 0; border: 1px solid var(--ink); }
.cinfo-card { padding: 26px 30px; border-bottom: 1px solid var(--line); }
.cinfo-card:last-child { border-bottom: 0; }
.cinfo-card h3 { font-size: 18px; margin-bottom: 6px; }
.cinfo-card p { font-size: 14.5px; color: var(--ink-soft); }
.cinfo-card a { color: var(--red); font-weight: 600; }

.legal-body { padding: 10px var(--pad) clamp(70px, 10vh, 110px); max-width: 760px; color: var(--ink-soft); display: grid; gap: 16px; position: relative; z-index: 1; }
.legal-body h2 { font-size: 26px; margin-top: 18px; color: var(--ink); }

/* ---------- responsive ---------- */
@media (max-width: 1060px) {
  .idx-row { grid-template-columns: 50px 180px 1fr; }
  .idx-meta { display: none; }
  .proc-list { grid-template-columns: 1fr 1fr; }
  .people { grid-template-columns: 1fr; }
  .sheet { grid-template-columns: 1fr; }
  .sheet-side { position: static; }
}
@media (max-width: 860px) {
  .nav-links, .nav-meta { display: none; }
  .burger {
    display: block; position: relative;
    width: 46px; height: 46px; border: 1px solid var(--ink); border-radius: 2px;
    background: transparent; cursor: pointer; z-index: 61;
  }
  .burger i {
    position: absolute; left: 50%; top: 50%;
    width: 18px; height: 1.5px; margin: -1px 0 0 -9px;
    background: var(--ink);
    transition: transform .35s; display: block;
  }
  .burger i:first-child { transform: translateY(-3px); }
  .burger i:last-child { transform: translateY(3px); }
  .burger.active i:first-child { transform: rotate(45deg); }
  .burger.active i:last-child { transform: rotate(-45deg); }

  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 120px; }
  .hero-media { order: -1; max-width: 460px; }
  .hero-media video { aspect-ratio: 4 / 3; }
  .idx-row { grid-template-columns: 40px 1fr; }
  .idx-media { display: none; }
  .model { grid-template-columns: 1fr; }
  .model-stage { max-width: 440px; margin: 0 auto; }
  .contact { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .proc-list, .footer-grid { grid-template-columns: 1fr; }
}