/* ================================================
   DEMO PÚBLICA · Álbum digital AEP
   Identidad AEP · Visual cálido · No Invitación
   ================================================ */

:root {
  --al-bg: #f9f5f0;
  --al-portada-from: #2d1f1a;
  --al-portada-to: #5c3726;
  --al-acento: #c89b6e;
  --al-sepia: #8b6c4f;
  --al-tinta: #1e160d;
  --al-tinta-suave: #6e5840;
  --al-papel: #fffcf7;
  --al-borde: rgba(139, 108, 79, 0.2);
  --al-sombra: rgba(30, 22, 13, 0.09);
  --al-r: 18px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  background: var(--al-bg);
  color: var(--al-tinta);
  font-family: Nunito, Inter, "Segoe UI", system-ui, sans-serif;
  line-height: 1.65;
  padding-bottom: 2.5rem;
}

h1, h2, h3, blockquote {
  font-family: Fraunces, "Playfair Display", Georgia, serif;
  line-height: 1.2;
}

/* ── PORTADA ── */
.portada {
  min-height: 88svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(2rem, 5vw, 4rem) 1.25rem;
  background:
    linear-gradient(170deg, rgba(45, 31, 26, 0.82), rgba(92, 55, 38, 0.7)),
    radial-gradient(circle at 80% 20%, rgba(200, 155, 110, 0.2), transparent 52%),
    var(--al-portada-from);
  position: relative;
  overflow: hidden;
}

.portada::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--al-bg));
  pointer-events: none;
}

.portada-inner {
  position: relative;
  z-index: 1;
  width: min(600px, 100%);
  color: #fff;
}

.portada-kicker {
  margin: 0 0 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--al-acento);
}

.portada-titulo {
  margin: 0 0 0.35rem;
  font-size: clamp(2.4rem, 9vw, 4.2rem);
  font-weight: 600;
  color: #fff;
}

.portada-nombres {
  margin: 0 0 0.55rem;
  font-family: Fraunces, "Playfair Display", Georgia, serif;
  font-size: clamp(1.3rem, 4vw, 1.9rem);
  color: var(--al-acento);
  font-weight: 400;
  letter-spacing: 0.04em;
}

.portada-subtitulo {
  margin: 0 0 1.6rem;
  font-size: clamp(0.95rem, 3.2vw, 1.15rem);
  opacity: 0.88;
}

/* ── MAIN ── */
main {
  width: min(900px, 100%);
  margin: 0 auto;
  padding: 0 1rem;
}

/* ── BLOQUE GENÉRICO ── */
.bloque {
  margin-top: 1.25rem;
  background: var(--al-papel);
  border: 1px solid var(--al-borde);
  border-radius: var(--al-r);
  padding: clamp(1.1rem, 3.5vw, 1.6rem);
  box-shadow: 0 4px 18px var(--al-sombra);
}

.bloque-titulo {
  margin: 0 0 1rem;
  font-size: clamp(1.25rem, 4vw, 1.7rem);
  color: var(--al-sepia);
}

/* ── DEDICATORIA ── */
.dedicatoria {
  text-align: center;
  background: linear-gradient(180deg, #fff8f2, #fff4eb);
}

.dedicatoria-texto {
  margin: 0;
  font-family: Fraunces, "Playfair Display", Georgia, serif;
  font-style: italic;
  font-size: clamp(1.05rem, 3.5vw, 1.3rem);
  color: var(--al-sepia);
}

/* ── CAPÍTULOS ── */
.capitulo {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--al-borde);
  border-radius: var(--al-r);
  background: linear-gradient(160deg, #fffdf9, #fff8f0);
  margin-top: 0.85rem;
}

.capitulo:first-of-type { margin-top: 0; }

.capitulo-imagen img {
  width: 100%;
  height: clamp(180px, 28vw, 280px);
  object-fit: cover;
  border-radius: 12px;
  display: block;
}

.capitulo-texto h3 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.05rem, 3.5vw, 1.3rem);
  color: var(--al-sepia);
}

.capitulo-texto p {
  margin: 0;
  color: var(--al-tinta-suave);
  font-size: 0.97rem;
}

/* ── GALERÍA ── */
.galeria-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.galeria-item {
  margin: 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--al-borde);
  background: #fff;
}

.galeria-item img {
  width: 100%;
  height: clamp(120px, 20vw, 200px);
  object-fit: cover;
  display: block;
}

.galeria-item figcaption {
  padding: 0.45rem 0.6rem;
  font-size: 0.85rem;
  color: var(--al-tinta-suave);
  font-style: italic;
}

/* ── MENSAJES GUARDADOS ── */
.mensajes-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 1fr;
}

.nota {
  margin: 0;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--al-acento);
  background: linear-gradient(160deg, #fffdf7, #fff8ec);
  border-radius: 0 12px 12px 0;
  font-family: Fraunces, "Playfair Display", Georgia, serif;
  font-style: italic;
  font-size: clamp(0.98rem, 3.2vw, 1.12rem);
  color: var(--al-sepia);
}

.nota p { margin: 0; }

/* ── CIERRE ── */
.cierre {
  text-align: center;
}

.cierre-texto {
  margin: 0 0 0.55rem;
  font-family: Fraunces, "Playfair Display", Georgia, serif;
  font-style: italic;
  font-size: clamp(1rem, 3.4vw, 1.22rem);
  color: var(--al-tinta);
}

.cierre-firma {
  margin: 0;
  font-family: Fraunces, "Playfair Display", Georgia, serif;
  font-size: 1.6rem;
  color: var(--al-sepia);
}

/* ── FOOTER ── */
.footer {
  width: min(900px, 100%);
  margin: 1.25rem auto 0;
  text-align: center;
  color: var(--al-tinta-suave);
  padding: 0 1rem 1rem;
}

.footer-texto {
  margin: 0 0 0.6rem;
  font-size: 0.88rem;
}

/* ── BOTONES ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.56rem 1.2rem;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-portada {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.46);
  color: #fff;
  backdrop-filter: blur(4px);
}

.btn-portada:hover, .btn-portada:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.btn-secundario {
  background: transparent;
  color: var(--al-sepia);
  border-color: rgba(139, 108, 79, 0.45);
}

.btn-secundario:hover, .btn-secundario:focus-visible {
  background: rgba(139, 108, 79, 0.1);
  border-color: var(--al-sepia);
  color: var(--al-tinta);
}

/* ── RESPONSIVE ── */
@media (min-width: 680px) {
  main, .footer { padding: 0 1.5rem; }

  .capitulo {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .capitulo-invertido .capitulo-imagen { order: 2; }
  .capitulo-invertido .capitulo-texto  { order: 1; }

  .galeria-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mensajes-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .galeria-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}