/* ============================================================
   CALA ESTUDI — DESIGN SYSTEM
   ============================================================
   Design plan (per frontend-design skill process):

   COLOR (named, 6 tokens — deliberately NOT the cliché
   #F4F1EA cream + #D97757 terracotta combo):
     --stone   #EDE8DF  background — warmer/greyer stone, not peachy cream
     --ink     #262220  primary text — warm near-black
     --oxblood #7C3524  signature accent — deeper red-brown than the
                         common AI-default terracotta, closer to
                         Septiembre's bold oxblood than YLAB's lighter tone
     --clay    #B5604A  accent tint — hovers, secondary emphasis
     --taupe   #6B6155  secondary/muted text
     --line    #D8D0C2  hairline borders, dividers

   TYPE (2 roles, deliberately not Playfair+Inter):
     Display: 'Fraunces' — soft, warm variable serif, headlines only,
              used with restraint (per skill: "characterful display
              face used with restraint")
     UI/nav:  'Jost' — thin, wide-tracked geometric sans, echoes the
              real YLAB reference (confirmed via screenshot)
     Body:    'Work Sans' — clean, readable, avoids the Inter/Poppins
              default

   LAYOUT: full-bleed photography, generous whitespace, editorial
   pacing. Signature element: homepage hero where the display
   headline interlocks with real project photography (Septiembre
   technique), not simply overlaid.

   IMAGE ASSETS: this build uses labeled placeholder blocks
   ([Foto: ...]) wherever a real Cala photograph belongs — no real
   photography files were available during this build. Swap the
   .placeholder-img divs for real <img> tags before deploying.
   ============================================================ */


:root {
  --stone: #EDE8DF;
  --stone-deep: #E3DCCE;
  --ink: #262220;
  --oxblood: #7C3524;
  --clay: #B5604A;
  --taupe: #6B6155;
  --line: #D8D0C2;
  --white: #FBFAF7;

  --font-display: 'Fraunces', Georgia, serif;
  --font-ui: 'Jost', sans-serif;
  --font-body: 'Work Sans', sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 4rem;
  --space-7: 6rem;

  --max-width: 1280px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--stone);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--oxblood); outline-offset: 3px; }

img { max-width: 100%; display: block; }

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-4); }
@media (max-width: 640px) { .wrap { padding: 0 var(--space-2); } }

h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.15; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 400; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.3rem; }

.eyebrow {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--taupe);
}

p { max-width: 62ch; }
main p { margin-bottom: var(--space-3); line-height: 1.7; }
main h2 { margin-top: var(--space-5); margin-bottom: var(--space-2); }
main h2:first-of-type { margin-top: var(--space-4); }
section h2 { margin-top: 0; }
p.lede { font-size: 1.15rem; color: var(--ink); max-width: 58ch; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: rgba(237, 232, 223, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.logo {
  font-family: var(--font-ui); font-weight: 300; font-size: 1.3rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  display: flex; align-items: center; gap: var(--space-1);
}
.logo img { height: 29px; width: auto; display: block; }
.nav-inline { display: flex; gap: var(--space-4); align-items: center; }
.nav-inline a {
  font-family: var(--font-ui); font-size: 0.85rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink);
}
.nav-inline a:hover { color: var(--oxblood); }
.lang-switch { display: flex; gap: var(--space-1); font-family: var(--font-ui); font-size: 0.78rem; letter-spacing: 0.06em; }
.lang-switch a { color: var(--taupe); }
.lang-switch a[aria-current="true"] { color: var(--oxblood); }
.menu-toggle {
  font-family: var(--font-ui); font-size: 0.85rem; letter-spacing: 0.1em;
  text-transform: uppercase; background: none; border: none; cursor: pointer;
  display: none;
}
@media (max-width: 780px) {
  .nav-inline > a { display: none; }
  .menu-toggle { display: inline-block; }
}

/* ---------- Full-screen menu takeover (real YLAB pattern) ---------- */
.menu-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: var(--white);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: var(--space-3);
  opacity: 0; pointer-events: none; transition: opacity 0.35s ease;
}
.menu-overlay.is-open { opacity: 1; pointer-events: auto; }
.menu-overlay a {
  font-family: var(--font-ui); font-size: 1.1rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--oxblood);
}
.menu-overlay .menu-close {
  position: absolute; top: var(--space-3); right: var(--space-4);
  font-size: 1.5rem; background: none; border: none; cursor: pointer; color: var(--ink);
}
.menu-overlay .menu-meta { margin-top: var(--space-4); text-align: center; }
.menu-overlay .menu-meta p { font-family: var(--font-ui); font-size: 0.85rem; color: var(--taupe); }

/* ---------- Hero (signature element: type interlocking with photo) ---------- */
.hero {
  text-align: center;
  padding: var(--space-5) var(--space-3) var(--space-4);
}
.hero h1 { margin-bottom: var(--space-2); }
.hero h1 .accent-word { color: var(--oxblood); }
.hero .lede { margin: 0 auto var(--space-4); }
.hero-photo-frame {
  width: min(50vw, 620px); height: min(48vh, 420px);
  margin: 0 auto;
}
.hero-photo-frame .placeholder-img { width: 100%; height: 100%; }
.hero-video { width: 100%; height: 100%; object-fit: cover; border-radius: 2px; display: block; }
.hero-poster-fallback { display: none; width: 100%; height: 100%; object-fit: cover; border-radius: 2px; }
@media (prefers-reduced-motion: reduce) {
  .hero-video { display: none; }
  .hero-poster-fallback { display: block; }
}

/* ---------- Placeholder image blocks (no real photography available yet) ---------- */
.placeholder-img {
  background: linear-gradient(135deg, var(--stone-deep), var(--line));
  display: flex; align-items: center; justify-content: center;
  color: var(--taupe); font-family: var(--font-ui); font-size: 0.75rem;
  letter-spacing: 0.05em; text-align: center; padding: var(--space-2);
  min-height: 220px;
}
.placeholder-img.tall { min-height: 420px; }
.placeholder-img.hero-img { width: 100%; height: 100%; border-radius: 2px; }

/* ---------- Service cards ---------- */
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3);
  margin: var(--space-5) 0;
}
@media (max-width: 780px) { .services-grid { grid-template-columns: 1fr; } }
.service-card {
  border-top: 1px solid var(--line);
  padding: var(--space-3) 0;
}
.service-card .eyebrow { display: block; margin-bottom: var(--space-1); }
.service-card h3 { margin-bottom: var(--space-1); }
.service-card a.card-link { display: inline-block; margin-top: var(--space-2); font-family: var(--font-ui); font-size: 0.85rem; letter-spacing: 0.05em; color: var(--oxblood); }

/* ---------- Section rhythm ---------- */
section { padding: var(--space-6) 0; }
section.tight { padding: var(--space-4) 0; }
.section-head { margin-bottom: var(--space-4); }
.section-head .eyebrow { margin-bottom: var(--space-1); }

/* ---------- Project grid (full-bleed, YLAB pattern) ---------- */
.project-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px;
}
@media (max-width: 640px) { .project-grid { grid-template-columns: 1fr; } }
.project-tile { position: relative; overflow: hidden; }
.project-tile .placeholder-img { min-height: 380px; }
.project-tile img { aspect-ratio: 4 / 3; width: 100%; height: auto; object-fit: cover; display: block; }
.team-grid img { aspect-ratio: 3 / 4; width: 100%; height: auto; object-fit: cover; display: block; }
.content-figure img { aspect-ratio: 4 / 3; width: 100%; height: auto; object-fit: cover; display: block; }
.hero-figure img { max-height: 85vh; width: 100%; object-fit: cover; display: block; }
.project-grid figure img { aspect-ratio: 4 / 3; width: 100%; height: auto; object-fit: cover; display: block; }
.project-caption {
  position: absolute; left: var(--space-2); bottom: var(--space-2);
  background: rgba(251, 250, 247, 0.88);
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-ui);
}
.project-caption .name { font-family: var(--font-display); font-size: 1.1rem; }
.project-caption .loc { font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--taupe); }

/* ---------- Text-forward project list (Septiembre pattern, used on /proyectos/ index) ---------- */
.project-list { border-top: 1px solid var(--line); }
.project-list-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: var(--space-3) 0; border-bottom: 1px solid var(--line);
  gap: var(--space-2);
}
.project-list-row .name { font-family: var(--font-display); font-size: 1.6rem; }
.project-list-row .meta { font-family: var(--font-ui); font-size: 0.8rem; color: var(--taupe); text-align: right; white-space: nowrap; }
.project-list-row:hover .name { color: var(--oxblood); }

/* ---------- Process steps ---------- */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-3); margin: var(--space-4) 0; }
@media (max-width: 900px) { .process-steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .process-steps { grid-template-columns: 1fr; } }
.process-step .step-num { font-family: var(--font-display); font-size: 2rem; color: var(--clay); }
.process-step h3 { margin: var(--space-1) 0; font-size: 1.1rem; }
.process-step p { font-size: 0.95rem; color: var(--taupe); }

/* ---------- FAQ ---------- */
.faq-item { border-top: 1px solid var(--line); padding: var(--space-3) 0; }
.faq-item h3 { font-family: var(--font-body); font-weight: 500; font-size: 1.05rem; margin-bottom: var(--space-1); }
.faq-item p { color: var(--taupe); font-size: 0.98rem; }

/* ---------- Fact block (project pages) ---------- */
.fact-block {
  display: flex; flex-wrap: wrap; gap: var(--space-4);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: var(--space-2) 0; margin: var(--space-3) 0 var(--space-4);
}
.fact-block dt { font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--taupe); }
.fact-block dd { font-family: var(--font-body); font-size: 0.95rem; margin-top: 2px; }

/* ---------- CTA ---------- */
.cta-block {
  text-align: center; padding: var(--space-6) var(--space-3);
  background: var(--stone-deep);
}
.btn {
  display: inline-block; font-family: var(--font-ui); font-size: 0.9rem;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--oxblood); color: var(--oxblood);
  transition: background 0.2s ease, color 0.2s ease;
  margin-top: var(--space-2);
}
.btn:hover { background: var(--oxblood); color: var(--white); }
.btn.whatsapp::before { content: "↗ "; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--space-4) 0 var(--space-5);
  font-family: var(--font-ui); font-size: 0.85rem; color: var(--taupe);
}
.site-footer .footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-3); }
.site-footer a:hover { color: var(--oxblood); }

/* ---------- Disclaimer note (Ideas/Guía educational pieces) ---------- */
.info-note {
  font-family: var(--font-ui); font-size: 0.82rem; color: var(--taupe);
  border-left: 2px solid var(--clay); padding-left: var(--space-2);
  margin-bottom: var(--space-3);
}

/* ---------- Fade-in on scroll (subtle only, per design-direction doc) ---------- */
.fade-in { opacity: 0; transform: translateY(12px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Improved placeholder treatment (v2) ----------
   Flat grey boxes read as a wireframe, not a design attempt.
   These are still placeholders — real photography is still required
   for honest evaluation — but they at least suggest warmth/material
   instead of looking broken. */
.placeholder-img {
  background:
    radial-gradient(ellipse at 30% 20%, rgba(181, 96, 74, 0.15), transparent 55%),
    radial-gradient(ellipse at 75% 80%, rgba(124, 53, 36, 0.12), transparent 50%),
    linear-gradient(160deg, var(--stone-deep) 0%, #DDD3BF 45%, var(--line) 100%);
  position: relative;
  color: var(--taupe);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}
.placeholder-img::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(115deg, rgba(38,34,32,0.03) 0px, rgba(38,34,32,0.03) 1px, transparent 1px, transparent 60px);
  opacity: 0.6;
}
.placeholder-img span.ph-label {
  position: relative; z-index: 1;
  background: rgba(251, 250, 247, 0.75);
  padding: 4px 10px;
  border-radius: 2px;
}

/* ---------- Figure captions (visible, not just alt text) ---------- */
figure { margin: 0; }
figcaption {
  font-family: var(--font-ui); font-size: 0.78rem; color: var(--taupe);
  padding: var(--space-1) 0 0;
}
.date-line { font-family: var(--font-ui); font-size: 0.78rem; color: var(--taupe); }

/* ---------- H1 sub-span: keeps project name visually dominant while making
   the full descriptive text part of the actual H1 for SEO/GEO parsing ---------- */
h1 .h1-sub {
  font-size: 0.42em;
  font-weight: 400;
  color: var(--taupe);
  font-family: var(--font-body);
  display: inline-block;
  margin-left: var(--space-1);
  vertical-align: middle;
}