/* ==========================================================================
   ZADAR (CROACIA) - SISTEMA DE ESTILOS IMPERIAL Y GALERÍA MASONRY
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
  /* Paleta de Colores - Mar Adriático y Piedra Imperial */
  --bg-dark: #080c14;
  --bg-card: #0f172a;
  --bg-card-hover: #1e293b;
  --accent-gold: #e2b144;
  --accent-gold-glow: rgba(226, 177, 68, 0.35);
  --accent-cyan: #06b6d4;
  --accent-blue: #2563eb;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-gold: rgba(226, 177, 68, 0.3);
  
  /* Fuentes */
  --font-title: 'Cinzel', serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  /* Sombras y Efectos */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --shadow-gold: 0 0 25px rgba(226, 177, 68, 0.25);
  --glass-bg: rgba(15, 23, 42, 0.75);
  --glass-border: rgba(255, 255, 255, 0.12);
  --transition-normal: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(226, 177, 68, 0.08) 0%, transparent 45%);
  background-attachment: fixed;
}

/* --------------------------------------------------------------------------
   Encabezado Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: 5rem 1.5rem 3.5rem;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.2rem;
  background: rgba(226, 177, 68, 0.1);
  border: 1px solid var(--border-gold);
  border-radius: 9999px;
  color: var(--accent-gold);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.hero-title {
  font-family: var(--font-title);
  font-size: clamp(2.5rem, 6vw, 4.8rem);
  font-weight: 700;
  line-height: 1.1;
  background: linear-gradient(135deg, #ffffff 30%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 2.5rem;
  font-weight: 300;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.stat-item {
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  padding: 1rem 1.8rem;
  border-radius: 16px;
  backdrop-filter: blur(12px);
  min-width: 160px;
  transition: var(--transition-normal);
}

.stat-item:hover {
  border-color: var(--border-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold);
}

.stat-number {
  font-family: var(--font-title);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent-gold);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --------------------------------------------------------------------------
   Sección Historia y Contexto
   -------------------------------------------------------------------------- */
.story-section {
  max-width: 1100px;
  margin: 0 auto 4rem;
  padding: 0 1.5rem;
}

.story-card {
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.story-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-gold), var(--accent-cyan));
}

.story-title {
  font-family: var(--font-title);
  font-size: 1.8rem;
  color: var(--accent-gold);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.story-text {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.2rem;
}

.story-text:last-child {
  margin-bottom: 0;
}

.story-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.highlight-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  padding: 1.2rem;
}

.highlight-box h4 {
  font-family: var(--font-title);
  color: var(--text-main);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.highlight-box p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Filtros de Galería
   -------------------------------------------------------------------------- */
.filters-container {
  max-width: 1200px;
  margin: 0 auto 2.5rem;
  padding: 0 1.5rem;
}

.filters-wrapper {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  padding: 0.75rem;
  border-radius: 9999px;
  backdrop-filter: blur(12px);
}

.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.6rem 1.4rem;
  border-radius: 9999px;
  cursor: pointer;
  transition: var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.filter-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
}

.filter-btn.active {
  background: var(--accent-gold);
  color: var(--bg-dark);
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(226, 177, 68, 0.4);
}

.filter-count {
  font-size: 0.75rem;
  padding: 0.15rem 0.45rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.15);
  color: inherit;
}

.filter-btn.active .filter-count {
  background: rgba(0, 0, 0, 0.2);
}

/* --------------------------------------------------------------------------
   Galería Muro de Piedra (Masonry Multi-Column Proporcional)
   -------------------------------------------------------------------------- */
.gallery-container {
  max-width: 1400px;
  margin: 0 auto 5rem;
  padding: 0 1.5rem;
}

.gallery-grid {
  column-count: 4;
  column-gap: 1.25rem;
}

@media (max-width: 1200px) {
  .gallery-grid {
    column-count: 3;
  }
}

@media (max-width: 840px) {
  .gallery-grid {
    column-count: 2;
    column-gap: 1rem;
  }
}

@media (max-width: 520px) {
  .gallery-grid {
    column-count: 1;
  }
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.25rem;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: var(--transition-normal);
  transform: translateZ(0);
}

.gallery-item:hover {
  transform: translateY(-5px);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-lg), var(--shadow-gold);
  z-index: 2;
}

.gallery-item:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 3px;
}

.gallery-img-wrapper {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #000;
}

.gallery-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 12, 20, 0.95) 0%, rgba(8, 12, 20, 0.4) 50%, transparent 100%);
  opacity: 0;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
}

.gallery-item:hover .gallery-overlay,
.gallery-item:focus-visible .gallery-overlay {
  opacity: 1;
}

.gallery-item-title {
  font-family: var(--font-title);
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 0.4rem;
}

.gallery-item-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gallery-tag {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(8, 12, 20, 0.75);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(8px);
  color: var(--accent-gold);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  z-index: 2;
}

/* --------------------------------------------------------------------------
   Visor Lightbox — Imagen maximizada con interfaz en capas superpuestas
   El cuerpo ocupa el 100% del visor; contador, flechas y leyenda flotan
   sobre la foto con degradados que garantizan la legibilidad del texto.
   -------------------------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(4, 7, 12, 0.97);
  backdrop-filter: blur(20px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

/* Cuerpo a pantalla completa: ningún padding que reste espacio a la foto */
.lightbox-body {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img-container {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* La foto crece hasta el límite real del visor. 100dvh contempla las
   barras dinámicas de los navegadores móviles. Nunca se recorta: contain. */
.lightbox-img {
  max-width: 100%;
  max-height: 100vh;
  max-height: 100dvh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 2px;
  box-shadow: 0 25px 70px rgba(0, 0, 0, 0.9);
  transition: opacity 0.3s ease;
  cursor: pointer;
}

/* Barra superior flotante: contador + acciones */
.lightbox-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.25rem;
  background: linear-gradient(to bottom, rgba(4, 7, 12, 0.85), transparent);
  z-index: 10;
}

.lightbox-counter {
  font-family: var(--font-title);
  font-size: 1.05rem;
  color: var(--accent-gold);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.8);
}

.lightbox-actions {
  display: flex;
  gap: 0.6rem;
}

.lightbox-icon-btn,
.lightbox-close {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-color);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  backdrop-filter: blur(8px);
}

.lightbox-icon-btn:hover,
.lightbox-close:hover {
  background: var(--accent-gold);
  color: var(--bg-dark);
  border-color: var(--accent-gold);
}

.lightbox-close:hover {
  transform: rotate(90deg);
}

/* Flechas superpuestas: no reservan margen lateral */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  color: #fff;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.lightbox-nav:hover {
  background: var(--accent-gold);
  color: var(--bg-dark);
  border-color: var(--accent-gold);
}

.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }

/* Leyenda flotante: permanece visible sin restar altura a la imagen.
   El degradado hace legible el texto sobre cualquier fotografía. */
.lightbox-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 4rem 1.5rem 1.4rem;
  background: linear-gradient(to top, rgba(4, 7, 12, 0.92) 0%, rgba(4, 7, 12, 0.55) 55%, transparent 100%);
  text-align: center;
  z-index: 10;
  pointer-events: none;
  transition: transform 0.35s ease, opacity 0.35s ease;
}

.lightbox-caption-title {
  font-family: var(--font-title);
  font-size: 1.35rem;
  color: var(--accent-gold);
  margin-bottom: 0.35rem;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.85);
}

.lightbox-caption-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 860px;
  margin: 0 auto;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.85);
}

/* Modo "foto limpia": la leyenda se retira hacia abajo */
.lightbox.caption-hidden .lightbox-caption {
  transform: translateY(100%);
  opacity: 0;
}

.lightbox-spinner {
  position: absolute;
  top: calc(50% - 24px);
  left: calc(50% - 24px);
  width: 48px;
  height: 48px;
  border: 4px solid rgba(226, 177, 68, 0.2);
  border-top-color: var(--accent-gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Ajustes móviles del visor */
@media (max-width: 640px) {
  .lightbox-nav {
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
  }
  .lightbox-prev { left: 0.5rem; }
  .lightbox-next { right: 0.5rem; }
  .lightbox-caption { padding: 3rem 1rem 1rem; }
  .lightbox-caption-title { font-size: 1.05rem; }
  .lightbox-caption-desc { font-size: 0.85rem; }
}

/* --------------------------------------------------------------------------
   Entrada escalonada de las fotografías (feedback visual al filtrar)
   -------------------------------------------------------------------------- */
.gallery-item {
  animation: itemReveal 0.45s cubic-bezier(0.4, 0, 0.2, 1) backwards;
  animation-delay: calc(var(--i, 0) * 40ms);
}

@keyframes itemReveal {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
}

/* Respeto por usuarios que prefieren movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --------------------------------------------------------------------------
   Pie de Página y Botón Arriba
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
  background: rgba(5, 8, 14, 0.8);
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--glass-bg);
  border: 1px solid var(--border-color);
  color: var(--accent-gold);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-normal);
  opacity: 0;
  pointer-events: none;
  backdrop-filter: blur(8px);
  z-index: 90;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--accent-gold);
  color: var(--bg-dark);
  transform: translateY(-4px);
}