/* ============================================================
   NEXCOL — Portafolio (archivo y detalle de proyecto)
   Se apoya en los tokens y componentes de nexcol.css
   ============================================================ */

/* ---- encabezado ---- */
.pf-hero { position: relative; padding-top: 150px; padding-bottom: clamp(36px, 5vw, 56px); overflow: hidden; }
.pf-hero-inner { position: relative; z-index: 1; max-width: calc(var(--maxw)); }
.pf-hero .eyebrow { margin-bottom: 22px; }
.pf-hero h1 { max-width: 16ch; margin-bottom: 22px; }
.pf-hero h1 .accent { color: var(--accent); }
.pf-hero--single h1 { max-width: 20ch; font-size: clamp(36px, 5.4vw, 64px); }

.pf-back {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 26px;
  font-family: var(--f-mono); font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-3); transition: color .18s ease;
}
.pf-back svg { width: 16px; height: 16px; transition: transform .2s ease; }
.pf-back:hover { color: var(--accent-ink); }
.pf-back:hover svg { transform: translateX(-3px); }

/* ---- etiquetas (mismo estilo que el stack de servicios) ---- */
.pf-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.pf-tags .tag {
  font-family: var(--f-mono); font-size: 12px; color: var(--ink-2);
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 7px; padding: 5px 10px;
}
.pf-hero .pf-tags { margin-bottom: 20px; }
.pf-hero a.tag:hover { border-color: var(--line-2); color: var(--ink); }

/* ---- filtros ---- */
.pf-list { padding-top: clamp(8px, 2vw, 20px); }
.pf-others { padding-top: clamp(72px, 9vw, 110px); }
.pf-filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: clamp(28px, 4vw, 44px); }
.pf-chip {
  font-size: 14.5px; font-weight: 500; color: var(--ink-2);
  border: 1.5px solid var(--line-2); border-radius: 999px; padding: 8px 18px;
  transition: border-color .18s ease, color .18s ease, background .18s ease;
}
.pf-chip:hover { border-color: var(--ink); color: var(--ink); }
.pf-chip.active { background: var(--ink); border-color: var(--ink); color: var(--on-dark); }

/* ---- grilla de proyectos ---- */
.pf-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pf-card {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.pf-card[hidden] { display: none; }
.pf-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--line-2); }
.pf-card-img { display: block; aspect-ratio: 16 / 10; background: var(--bg-2); overflow: hidden; border-bottom: 1px solid var(--line); }
.pf-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.pf-card:hover .pf-card-img img { transform: scale(1.03); }
.pf-card-body { display: flex; flex-direction: column; gap: 10px; padding: 22px 24px 24px; flex: 1; }
.pf-card-title { font-family: var(--f-display); font-weight: 600; font-size: 21px; line-height: 1.25; color: var(--ink); }
.pf-card-desc { font-size: 15px; color: var(--ink-2); }
.pf-card-more {
  margin-top: auto; padding-top: 6px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 14.5px; font-weight: 600; color: var(--accent-ink);
}
.pf-card-more svg { width: 16px; height: 16px; transition: transform .2s ease; }
.pf-card:hover .pf-card-more svg { transform: translateX(3px); }
.pf-empty { color: var(--ink-3); padding-block: 30px; }
.pf-empty[hidden] { display: none; }

/* ---- portada del proyecto ---- */
.pf-cover-img {
  border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line);
  background: var(--bg-2); box-shadow: var(--shadow-lg);
}
.pf-cover-img img { width: 100%; height: auto; }

/* ---- caso de estudio ---- */
.pf-link { margin-top: 6px; }
.pf-facts {
  margin-top: clamp(34px, 5vw, 52px); padding-top: 26px; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 22px 28px;
}
.pf-facts dt { font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 6px; }
.pf-facts dd { margin: 0; font-family: var(--f-display); font-weight: 600; font-size: 16.5px; color: var(--ink); }

.pf-story { padding-bottom: 0; }
.pf-story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 88px); }
.pf-story .eyebrow { margin-bottom: 18px; }
.pf-prose p { font-size: clamp(17px, 1.6vw, 19px); color: var(--ink-2); line-height: 1.65; }
.pf-prose p + p { margin-top: 14px; }

.pf-feats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 40px; }
.pf-feats li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; color: var(--ink-2); }
.pf-feats .chk { flex: 0 0 auto; width: 22px; height: 22px; border-radius: 6px; background: var(--accent-soft); color: var(--accent-ink); display: grid; place-items: center; margin-top: 2px; }
.pf-feats .chk svg { width: 12px; height: 12px; }
.pf-stack { margin-top: clamp(36px, 5vw, 56px); padding-top: 28px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 18px 24px; flex-wrap: wrap; }
.pf-stack-label { font-family: var(--f-mono); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }

.pf-features, .pf-results, .pf-gallery-sec, .pf-quote { padding-bottom: 0; }
.pf-metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; }

.pf-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.pf-gallery--phones { grid-template-columns: repeat(4, 1fr); }
.pf-gallery + .pf-gallery { margin-top: clamp(28px, 4vw, 44px); }
.pf-gallery--phones .pf-shot a { border-radius: 26px; }
.pf-shot a { display: block; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); background: var(--bg-2); box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; cursor: zoom-in; }
.pf-shot a:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pf-shot img { width: 100%; height: auto; }
.pf-shot figcaption { margin-top: 10px; font-size: 14px; color: var(--ink-3); }

.pf-lightbox { border: none; padding: 0; background: transparent; max-width: min(1400px, 94vw); max-height: 94vh; overflow: visible; }
.pf-lightbox::backdrop { background: oklch(0.21 0.035 258 / 0.86); backdrop-filter: blur(4px); }
.pf-lightbox img { max-width: 100%; max-height: 86vh; border-radius: var(--radius); box-shadow: var(--shadow-lg); margin-inline: auto; }
.pf-lightbox-cap { color: var(--on-dark); text-align: center; font-size: 14.5px; margin-top: 12px; }
.pf-lightbox-cap:empty { display: none; }
.pf-lightbox-close {
  position: fixed; top: 18px; right: 22px; width: 44px; height: 44px; border-radius: 12px;
  background: oklch(1 0 0 / 0.1); color: #fff; font-size: 28px; line-height: 1;
}
.pf-lightbox-close:hover { background: oklch(1 0 0 / 0.2); }

.pf-quote blockquote { max-width: 860px; margin-inline: auto; text-align: center; }
.pf-quote blockquote p { font-family: var(--f-display); font-size: clamp(22px, 2.6vw, 30px); line-height: 1.4; color: var(--ink); }
.pf-quote footer { margin-top: 22px; display: grid; gap: 2px; font-size: 15px; color: var(--ink-2); }
.pf-quote footer strong { color: var(--ink); }

/* ---- franja final ---- */
.pf-cta { background: var(--dark); color: var(--on-dark); }
.pf-cta h2 { color: var(--on-dark); margin-top: 20px; }
.pf-cta .lead { color: var(--on-dark-2); margin-top: 16px; }
.pf-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }

/* ---- responsive ---- */
@media (max-width: 940px) {
  .pf-grid { grid-template-columns: 1fr 1fr; }
  .pf-gallery--phones { grid-template-columns: repeat(3, 1fr); }
  .pf-story-grid { grid-template-columns: 1fr; }
}
@media (max-width: 660px) {
  .pf-hero { padding-top: 116px; }
  .pf-grid { grid-template-columns: 1fr; }
  .pf-feats, .pf-gallery { grid-template-columns: 1fr; }
  .pf-gallery--phones { grid-template-columns: 1fr 1fr; gap: 14px; }
  .pf-facts { grid-template-columns: 1fr 1fr; }
  .pf-cta-inner .btn { width: 100%; justify-content: center; }
}

/* ---- menú: Proyectos activo en el portafolio ---- */
.nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"]::after { width: 100%; }
.mobile-menu a[aria-current="page"] { color: var(--accent-ink); }