/* =====================================================================
   Portada: bloque «Así instalamos» (variantes A y B). Va DESPUÉS de /css/styles.css.
   Solo clases ai-p-*; no cambia nada del resto de la web.
   ===================================================================== */

.ai-p { position: relative; background: var(--ink); border-top: 1px solid var(--hairline-gold); }
.ai-p-cabeza { padding: 96px 0 40px; }
.ai-p-cabeza .section-head { margin-bottom: 0; }
.ai-p-sello {
  display: inline-block; padding: 4px 11px; border-radius: 999px;
  font-size: 11.5px; letter-spacing: 0.06em; color: var(--cream);
  background: rgba(12, 17, 12, 0.6); border: 1px solid var(--hairline-gold);
  -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px);
}

/* ---------- franja «otros 4 espacios» (A y B) ---------- */
.ai-p-otras { padding: 72px 0 96px; background: linear-gradient(180deg, var(--pine-2), var(--ink)); border-top: 1px solid var(--hairline-gold); }
.ai-p-otras-titulo { margin: 0 0 8px; text-align: center; font-family: var(--font-display); font-size: clamp(30px, 3.6vw, 44px); line-height: 1.1; }
.ai-p-otras-titulo em { font-style: italic; color: var(--grass); }
.ai-p-otras-sub { margin: 0 auto 36px; max-width: 620px; text-align: center; color: var(--on-dark); }
.ai-p-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ai-p-mini {
  display: flex; flex-direction: column; text-decoration: none;
  background: var(--pine); border: 1px solid var(--hairline-cream); border-radius: var(--radius); overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.ai-p-mini:hover { transform: translateY(-5px); border-color: var(--hairline-gold); box-shadow: var(--shadow-card); }
.ai-p-mini-foto { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--ink-2); }
.ai-p-mini-foto img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.ai-p-mini:hover .ai-p-mini-foto img { transform: scale(1.05); }
.ai-p-mini-foto .ai-p-sello { position: absolute; right: 10px; top: 10px; font-size: 10.5px; }
.ai-p-mini-texto { display: grid; gap: 4px; padding: 16px 18px 18px; }
.ai-p-mini-nombre { font-family: var(--font-display); font-size: 23px; font-weight: 600; line-height: 1.1; color: var(--on-dark-strong); }
.ai-p-mini-ver { font-size: 12.5px; font-weight: 700; letter-spacing: 0.06em; color: var(--gold); }
.ai-p-acciones { margin-top: 40px; display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 18px; align-items: center; }
.ai-p-cta { padding: 18px 34px; font-size: 15px; }

/* ---------- variante A: la escena entera dentro de la portada ---------- */
.ai-p-a .ai-p-cabeza { padding-bottom: 48px; }

/* ---------- variante B: bloque ligero con la foto de noche de fondo ---------- */
.ai-p-b { overflow: hidden; }
.ai-p-b-escenario { position: relative; padding: 110px 0 104px; isolation: isolate; }
.ai-p-b-fondo { position: absolute; inset: 0; z-index: -2; }
.ai-p-b-fondo img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; }
.ai-p-b-escenario::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(8, 12, 8, 0.92) 0%, rgba(8, 12, 8, 0.78) 38%, rgba(8, 12, 8, 0.45) 100%),
    linear-gradient(0deg, rgba(8, 12, 8, 0.9) 0%, rgba(8, 12, 8, 0) 40%);
}
.ai-p-b-in { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; }
.ai-p-b-texto .eyebrow { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.ai-p-b-texto .section-title { margin-bottom: 18px; }
.ai-p-b-texto p.ai-p-b-sub { margin: 0 0 30px; color: var(--on-dark); max-width: 46ch; }
.ai-p-b-ayuda { margin: 12px 0 0; font-size: 13px; color: var(--on-dark); text-align: center; }
.ai-p-b-escenario > .ai-p-sello { position: absolute; right: 18px; bottom: 16px; }

@media (max-width: 1024px) {
  .ai-p-grid { grid-template-columns: 1fr 1fr; }
  .ai-p-b-in { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 640px) {
  .ai-p-cabeza { padding: 68px 0 28px; }
  .ai-p-otras { padding: 52px 0 68px; }
  .ai-p-grid { gap: 12px; }
  .ai-p-mini-texto { padding: 12px 12px 14px; }
  .ai-p-mini-nombre { font-size: 18px; }
  .ai-p-mini-ver { font-size: 11.5px; }
  .ai-p-mini-foto .ai-p-sello { right: 6px; top: 6px; font-size: 9.5px; padding: 3px 7px; }
  .ai-p-cta { width: 100%; justify-content: center; padding: 16px 20px; }
  .ai-p-b-escenario { padding: 64px 0 72px; }
  .ai-p-b-texto p.ai-p-b-sub { margin-bottom: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  .ai-p-mini, .ai-p-mini-foto img { transition: none; }
}