/* ============================================================
   PROYECTO.CSS — Páginas individuales de proyectos
   Alejandro Soffia · Arquitecto
   ============================================================ */
/* Google Fonts se carga via <link> en el HTML de cada página (no @import para evitar render-blocking) */

:root {
  --vb: #2A3A2F; --vn: #1E2A22; --musgo: #6B7556;
  --madera: #B5946A; --hueso: #EFEAE0;
  --hormi: #8C8780; --carbon: #1A1A18;
  --f-display: 'Cormorant Garamond', Georgia, serif;
  --f-body: 'DM Sans', system-ui, sans-serif;
  --f-mono: 'DM Mono', monospace;
  --max-w: 1200px;
  --gutter: clamp(1.25rem, 5vw, 4rem);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--f-body); background: var(--hueso); color: var(--carbon); overflow-x: clip; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

/* NAV */
.pnav {
  position: fixed; top: 0; left: 0; right: 0; height: 72px; z-index: 100;
  background: rgba(239,234,224,0.95); backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex; align-items: center;
  box-shadow: 0 1px 0 rgba(26,26,24,0.08);
}
.pnav__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: var(--max-w);
  margin-inline: auto; padding-inline: var(--gutter);
}
.pnav__back {
  font-family: var(--f-mono); font-size: 0.6875rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--carbon); opacity: 0.65; transition: opacity 0.2s;
  display: flex; align-items: center; gap: 0.5rem;
}
.pnav__back:hover { opacity: 1; }
.pnav__logo {
  font-family: var(--f-display); font-size: 1.1rem; font-weight: 700;
  color: var(--vb); letter-spacing: 0.01em;
}
.pnav__cta {
  font-family: var(--f-mono); font-size: 0.6875rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.625rem 1.25rem;
  background: var(--vb); color: var(--hueso);
  transition: background 0.25s;
}
.pnav__cta:hover { background: var(--vn); }

/* HERO */
.phero {
  min-height: 72vh; position: relative;
  display: flex; align-items: flex-end;
  padding-top: 72px; overflow: hidden; background: var(--carbon);
  /* CLS: height already set by min-height — imagen no genera layout shift */
}
.phero__img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover; object-position: center 30%;
  opacity: 0.8;
  /* LCP: preloaded in <head>, fetchpriority="high" en el HTML */
}
.phero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(26,26,24,0.75) 0%, rgba(26,26,24,0.1) 60%);
}
.phero__content {
  position: relative; z-index: 2;
  width: 100%; max-width: var(--max-w);
  margin-inline: auto; padding: 5rem var(--gutter) 3.5rem;
}
.phero__eyebrow {
  font-family: var(--f-mono); font-size: 0.6875rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255,255,255,0.55); margin-bottom: 1rem;
}
.phero__title {
  font-family: var(--f-display); font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 400; line-height: 1.05; color: #fff;
  letter-spacing: -0.01em; margin-bottom: 1rem;
}
.phero__sub {
  font-family: var(--f-mono); font-size: 0.75rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}

/* INFO BAR */
.pinfo { background: var(--vb); padding: 1.25rem var(--gutter); }
.pinfo__inner {
  max-width: var(--max-w); margin-inline: auto;
  display: flex; flex-wrap: wrap; gap: 3rem;
}
.pinfo__label {
  font-family: var(--f-mono); font-size: 0.5rem;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(239,234,224,0.45); margin-bottom: 4px;
}
.pinfo__value {
  font-family: var(--f-mono); font-size: 0.8125rem;
  color: var(--hueso); letter-spacing: 0.06em;
}

/* CONTENT */
.pcontent {
  max-width: var(--max-w); margin-inline: auto;
  padding: clamp(3rem, 6vw, 6rem) var(--gutter);
  display: grid; grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(3rem, 6vw, 6rem); align-items: start;
}
@media (max-width: 768px) { .pcontent { grid-template-columns: 1fr; } }

.pblock { margin-bottom: 2.5rem; }
.pblock:last-child { margin-bottom: 0; }
.pblock__label {
  font-family: var(--f-mono); font-size: 0.6rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--madera); margin-bottom: 0.625rem;
}
.pblock__text {
  font-family: var(--f-body); font-size: 1rem;
  line-height: 1.8; color: rgba(26,26,24,0.8);
}

.pchips {
  display: flex; flex-wrap: wrap; gap: 0.375rem; margin-bottom: 2.5rem;
}
.pchip {
  font-family: var(--f-mono); font-size: 0.575rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 0.35rem 0.7rem;
  background: var(--carbon); color: var(--hueso);
}

.pquote {
  border-left: 2px solid var(--madera);
  padding: 1.25rem 0 1.25rem 1.5rem;
}
.pquote__text {
  font-family: var(--f-display); font-size: 1.5rem;
  font-style: italic; line-height: 1.4; color: var(--vb); font-weight: 400;
}

/* GALLERY */
.pgallery { background: var(--carbon); padding: clamp(3rem, 5vw, 5rem) var(--gutter); }
.pgallery__inner { max-width: var(--max-w); margin-inline: auto; }
.pgallery__label {
  font-family: var(--f-mono); font-size: 0.575rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: rgba(239,234,224,0.35); margin-bottom: 1.5rem;
}
.pgallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 3px;
}
.pgallery__img {
  width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block;
  background-color: #2a2a28; /* placeholder color mientras carga */
  transition: opacity 0.3s;
  will-change: opacity;
}
.pgallery__img:hover { opacity: 0.82; }

/* CTA */
.pcta {
  text-align: center;
  padding: clamp(4rem, 8vw, 7rem) var(--gutter);
  background: var(--hueso);
}
.pcta__eyebrow {
  font-family: var(--f-mono); font-size: 0.6rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--hormi); margin-bottom: 1.5rem;
}
.pcta__headline {
  font-family: var(--f-display); font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 400; line-height: 1.15; color: var(--carbon); margin-bottom: 2rem;
}
.pcta__headline em { color: var(--vb); font-style: italic; }
.pcta__btn {
  display: inline-block; font-family: var(--f-mono); font-size: 0.75rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 1rem 2.5rem; background: var(--vb); color: var(--hueso);
  transition: background 0.25s;
}
.pcta__btn:hover { background: var(--vn); }

/* FOOTER */
.pfooter {
  background: var(--carbon); padding: 2rem var(--gutter); text-align: center;
}
.pfooter__text {
  font-family: var(--f-mono); font-size: 0.575rem;
  letter-spacing: 0.1em; color: rgba(239,234,224,0.3);
}
.pfooter__link { color: rgba(239,234,224,0.5); transition: color 0.2s; }
.pfooter__link:hover { color: var(--hueso); }

@media (max-width: 600px) {
  .pnav__logo { display: none; }
  .pgallery__grid { grid-template-columns: 1fr; }
}

/* LIGHTBOX */
.pgallery__img { cursor: zoom-in; }
.plightbox {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(26,26,24,0.96);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s ease;
}
.plightbox.is-open { opacity: 1; pointer-events: all; }
.plightbox__img {
  max-width: 90vw; max-height: 88vh;
  object-fit: contain; display: block;
  user-select: none;
}
.plightbox__close {
  position: absolute; top: 1.25rem; right: 1.5rem;
  background: none; border: none; color: rgba(255,255,255,0.6);
  font-size: 2.25rem; line-height: 1; cursor: pointer;
  transition: color 0.2s; font-family: sans-serif; font-weight: 300;
}
.plightbox__close:hover { color: #fff; }
.plightbox__prev, .plightbox__next {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.75); width: 48px; height: 48px; border-radius: 50%;
  cursor: pointer; font-size: 1.375rem;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s; user-select: none;
}
.plightbox__prev:hover, .plightbox__next:hover { background: rgba(255,255,255,0.18); }
.plightbox__prev { left: 1.25rem; }
.plightbox__next { right: 1.25rem; }
.plightbox__counter {
  position: absolute; bottom: 1.25rem; left: 50%; transform: translateX(-50%);
  font-family: var(--f-mono); font-size: 0.575rem;
  letter-spacing: 0.12em; color: rgba(255,255,255,0.35);
}
@media (max-width: 600px) {
  .plightbox__prev { left: 0.5rem; }
  .plightbox__next { right: 0.5rem; }
  .plightbox__img { max-width: 96vw; max-height: 80vh; }
}
