/* =============================================================
   GEOBRAS · Projects pages — extends styles.css (same tokens)
   Loaded AFTER styles.css. Homepage never loads this file.
   ============================================================= */

/* =============================================================
   1. SUB-HERO (listing header + project hero)
   ============================================================= */
.subhero {
  position: relative;
  min-height: 60vh;
  min-height: 60svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--black);
  padding-top: var(--nav-h);
}
.subhero-media { position: absolute; inset: 0; z-index: 0; }
.subhero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 42%;
  transform: scale(1.04);
  transform-origin: 60% 40%;
}
.subhero-scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(12,12,13,.85) 0%, rgba(12,12,13,.6) 40%, rgba(12,12,13,.32) 75%, rgba(12,12,13,.5) 100%),
    linear-gradient(0deg, rgba(12,12,13,.82) 0%, rgba(12,12,13,0) 45%, rgba(12,12,13,0) 70%, rgba(12,12,13,.35) 100%);
}
.subhero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  color: #fff;
  padding-block: clamp(2rem, 5vh, 3.75rem);
}
.subhero-title {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  color: #fff;
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  line-height: .96;
  letter-spacing: -.005em;
  margin-bottom: 1rem;
  max-width: 20ch;
  text-shadow: 0 2px 40px rgba(0,0,0,.35);
}
.subhero-sub {
  font-size: clamp(1rem, 1.4vw, 1.1875rem);
  color: rgba(255,255,255,.82);
  max-width: 54ch;
  line-height: 1.6;
}

/* =============================================================
   2. BREADCRUMB
   ============================================================= */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-body);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: rgba(255,255,255,.65);
  margin-bottom: 1.5rem;
}
.breadcrumb a { color: rgba(255,255,255,.65); transition: color var(--dur-fast) var(--ease-out); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: var(--accent); }
.breadcrumb .current { color: #fff; }

/* =============================================================
   3. CATEGORY CHIP
   ============================================================= */
.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .4rem .85rem;
  border-radius: 100px;
  margin-bottom: 1.25rem;
}
.cat-chip.is-light {
  background: rgba(204,17,17,.1);
  color: var(--accent);
}

/* =============================================================
   4. PROJECTS GRID + CARDS (listing page)
   ============================================================= */
.projects-section { background: var(--bg); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 360px), 1fr));
  gap: 1.75rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out);
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gray-200);
}
.project-card-media {
  display: block;
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--gray-100);
}
.project-card-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}
.project-card:hover .project-card-media img { transform: scale(1.06); }
.project-card-cat {
  position: absolute;
  top: 1rem; left: 1rem;
  background: var(--accent);
  color: #fff;
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem .75rem;
  border-radius: 100px;
}
.project-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 1.6rem 1.6rem 1.75rem;
}
.project-card-body h3 {
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .01em;
  color: var(--ink);
  margin-bottom: .6rem;
  line-height: 1.1;
}
.project-card-meta {
  font-size: .8rem;
  color: var(--ink-muted);
  letter-spacing: .03em;
  margin-bottom: .85rem;
}
.project-card-body p {
  font-size: .9375rem;
  color: var(--ink-soft);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}
.project-card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  align-self: flex-start;
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .02em;
  transition: gap var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.project-card-link svg { transition: transform var(--dur-fast) var(--ease-out); }
.project-card:hover .project-card-link { color: var(--accent-dark); }
.project-card:hover .project-card-link svg { transform: translateX(4px); }

/* =============================================================
   5. PROJECT DETAIL — intro + info spec sheet
   ============================================================= */
.proj-intro { background: var(--bg); }
.proj-intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}
.proj-intro-text h2 {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 1.25rem;
}
.proj-intro-text h2::before {
  content: '';
  display: block;
  width: 40px; height: 3px;
  background: var(--accent);
  margin-bottom: 1rem;
  border-radius: 2px;
}
.proj-intro-text p {
  color: var(--ink-soft);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.proj-info {
  display: grid;
  grid-template-columns: 1fr;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  align-self: start;
}
.proj-info-item {
  padding: 1.4rem 1.5rem;
}
.proj-info-item:not(:last-child) {
  border-bottom: 1.5px solid var(--border);
}
.proj-info-label {
  display: block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .45rem;
}
.proj-info-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1.05;
}

/* =============================================================
   6. PROJECT GALLERY
   ============================================================= */
.proj-gallery-section { background: var(--bg-alt); }
.proj-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}
.proj-gallery figure {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--gray-100);
  cursor: zoom-in;
}
.proj-gallery img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}
.proj-gallery figure:hover img { transform: scale(1.05); }
.proj-gallery figure::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(12,12,13,0);
  transition: background var(--dur-base) var(--ease-out);
}
.proj-gallery figure:hover::after { background: rgba(12,12,13,.12); }

/* =============================================================
   7b. ANTES Y DESPUÉS (before / after)
   ============================================================= */
.proj-compare-section { background: var(--bg-alt); }
.compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4vw, 2.75rem);
}
.compare-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  position: relative;
}
.compare-item {
  position: relative;
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--gray-100);
  cursor: zoom-in;
}
.compare-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}
.compare-item:hover img { transform: scale(1.04); }
.compare-tag {
  position: absolute;
  top: .9rem; left: .9rem;
  z-index: 2;
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .4rem .85rem;
  border-radius: 100px;
  background: rgba(15,15,15,.8);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0,0,0,.2);
}
.compare-after .compare-tag { background: var(--accent); }

@media (min-width: 720px) {
  .compare-pair { grid-template-columns: 1fr 1fr; gap: 1.25rem; }
}

/* =============================================================
   8. PROJECT CTA (request a similar project)
   ============================================================= */
.proj-cta-section { background: var(--gray-900); position: relative; overflow: hidden; }
.proj-cta-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(204,17,17,.14) 0%, transparent 60%),
    radial-gradient(ellipse at 100% 100%, rgba(204,17,17,.08) 0%, transparent 50%);
  pointer-events: none;
}
.proj-cta-inner {
  position: relative;
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
}
.proj-cta-inner h2 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 1rem;
}
.proj-cta-inner p {
  color: rgba(255,255,255,.7);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 52ch;
  margin-inline: auto;
}
.proj-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* =============================================================
   9. BACK LINK + nav active state
   ============================================================= */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .02em;
  transition: gap var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.back-link:hover { gap: .85rem; color: var(--accent-dark); }
.back-link svg { transition: transform var(--dur-fast) var(--ease-out); }
.back-link:hover svg { transform: translateX(-3px); }

.proj-back {
  padding-block: clamp(2.25rem, 4vw, 3.25rem);
  background: var(--bg);
  border-top: 1.5px solid var(--border);
}

.nav-link[aria-current="page"] { color: var(--accent); }
.nav.is-solid .nav-link[aria-current="page"] { color: var(--accent); }

/* =============================================================
   10. LIGHTBOX
   ============================================================= */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(8,8,9,.92);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), visibility var(--dur-base);
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox img {
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--radius);
  box-shadow: 0 30px 80px rgba(0,0,0,.5);
  transform: scale(.96);
  transition: transform var(--dur-base) var(--ease-out);
}
.lightbox.is-open img { transform: scale(1); }
.lightbox-close {
  position: absolute;
  top: clamp(1rem, 3vw, 2rem);
  right: clamp(1rem, 3vw, 2rem);
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  background: rgba(255,255,255,.1);
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  transition: background var(--dur-fast) var(--ease-out);
}
.lightbox-close:hover { background: var(--accent); }

/* =============================================================
   11. RESPONSIVE
   ============================================================= */
@media (min-width: 720px) {
  .proj-info { grid-template-columns: repeat(2, 1fr); }
  .proj-info-item:not(:last-child) { border-bottom: none; border-right: 1.5px solid var(--border); }
}
@media (min-width: 960px) {
  .proj-intro-grid { grid-template-columns: 1.5fr 1fr; align-items: start; }
  .proj-gallery { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 539px) {
  .proj-gallery { grid-template-columns: 1fr; }
  .proj-cta-actions .btn { width: 100%; justify-content: center; }
}