/* ==========================================
   ESTILOS GLOBALES & VARIABLES
   ========================================== */
:root {
  --primary: #1a1a1a;
  --secondary: #ffffff;
  --tertiary: #525252;
  --surface: #262626;
  --text-muted: #a0a0a0;
  --font-headings: "Montserrat", sans-serif;
  --font-body: "Open Sans", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--primary);
  color: var(--secondary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4 { font-family: var(--font-headings); font-weight: 700; letter-spacing: -0.5px; }

.section-title { text-align: center; font-size: 2rem; margin-bottom: 8px; color: var(--secondary); }
.section-subtitle { text-align: center; font-size: 1rem; color: var(--text-muted); margin-bottom: 48px; max-width: 600px; margin-left: auto; margin-right: auto; }

.btn {
  display: inline-block; padding: 14px 32px; border-radius: 8px; text-decoration: none;
  font-weight: 600; font-family: var(--font-headings); transition: all 0.3s ease;
  text-align: center; border: none; cursor: pointer;
}
.btn-primary { background-color: var(--secondary); color: var(--primary); }
.btn-primary:hover { background-color: var(--tertiary); color: var(--secondary); transform: translateY(-2px); }
.btn-tertiary { background-color: var(--tertiary); color: var(--secondary); }
.btn-tertiary:hover { background-color: #a1a1a1; transform: translateY(-2px); }

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
  position: fixed; top: 0; left: 0; width: 100%;
  background-color: rgba(26, 26, 26, 0.95); backdrop-filter: blur(10px);
  z-index: 1000; border-bottom: 1px solid #333; transition: all 0.3s ease;
}
.nav-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; height: 80px; }
.nav-logo-img { height: 22px; width: auto; display: block; }
.nav-links { display: flex; list-style: none; gap: 32px; align-items: center; }
.nav-link { color: var(--secondary); text-decoration: none; font-weight: 600; font-size: 0.95rem; transition: color 0.3s ease; }
.nav-link:hover { color: var(--tertiary); }
.nav-btn { background-color: var(--tertiary); padding: 10px 20px; border-radius: 6px; }
.nav-btn:hover { background-color: #a1a1a1; color: var(--secondary); }

.nav-toggle { display: none; background: transparent; border: none; cursor: pointer; padding: 5px; }
.hamburger { display: block; width: 25px; height: 3px; background-color: var(--secondary); position: relative; transition: background-color 0.3s; }
.hamburger::before, .hamburger::after { content: ""; position: absolute; width: 25px; height: 3px; background-color: var(--secondary); left: 0; transition: all 0.3s; }
.hamburger::before { top: -8px; }
.hamburger::after { top: 8px; }
.nav-toggle.active .hamburger { background-color: transparent; }
.nav-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active .hamburger::after { top: 0; transform: rotate(-45deg); }
section, header { scroll-margin-top: 80px; }

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  height: 90vh; display: flex; align-items: center; text-align: center;
  background: linear-gradient(rgba(26, 26, 26, 0.75), rgba(26, 26, 26, 0.9)), url(./media/aparts_fotos/exterior_1.webp) center/cover no-repeat;
}
.hero-title { font-size: 3rem; line-height: 1.2; margin-bottom: 16px; color: var(--secondary); }
.hero-subtitle { font-size: 1.25rem; color: var(--text-muted); margin-bottom: 36px; max-width: 700px; margin-left: auto; margin-right: auto; }

/* ==========================================
   CARACTERÍSTICAS & SLIDERS
   ========================================== */
.features, .reviews { padding: 100px 0; background-color: var(--primary); overflow: hidden; }
.reviews { background-color: var(--surface); }

.features-slider-wrapper, .reviews-slider-wrapper {
  max-width: 1400px; margin: 0 auto; position: relative; padding: 20px 0; overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}
.features-track { display: flex; width: max-content; animation: autoScrollFeatures 35s linear infinite; }
.reviews-track { display: flex; width: max-content; animation: autoScroll 40s linear infinite; }
.features-track:hover, .reviews-track:hover { animation-play-state: paused; }

@keyframes autoScrollFeatures { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes autoScroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

.feature-card {
  width: 280px; margin: 0 15px; background-color: var(--surface); padding: 40px 30px;
  border-radius: 12px; border: 1px solid #333; text-align: center; transition: all 0.3s ease;
}
.feature-card:hover { transform: translateY(-8px); border-color: var(--tertiary); box-shadow: 0 12px 30px rgba(198, 198, 198, 0.1); }
.feature-icon-img { width: 45px; height: 45px; object-fit: contain; }
.feature-card h3 { font-size: 1.25rem; margin-bottom: 12px; color: var(--secondary); }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }

.review-card {
  width: 350px; margin: 0 15px; background-color: var(--primary); padding: 35px 30px;
  border-radius: 16px; border: 1px solid #333; display: flex; flex-direction: column; justify-content: space-between; transition: transform 0.3s ease, border-color 0.3s ease;
}
.review-card:hover { transform: translateY(-5px); border-color: var(--tertiary); box-shadow: 0 8px 24px rgba(198, 198, 198, 0.1); }
.review-stars { font-size: 1.2rem; margin-bottom: 20px; letter-spacing: 2px; }
.review-stars-img { height: 22px; width: auto; object-fit: contain; display: block; }
.review-text { color: var(--secondary); font-size: 1rem; font-style: italic; line-height: 1.7; margin-bottom: 24px; }
.review-author { color: var(--tertiary); font-size: 1.1rem; font-weight: 700; }

/* Suavizado de PNGs */
.feature-icon-img, .review-stars-img, .whatsapp-icon-img { filter: drop-shadow(0px 0px 3px rgba(255, 255, 255, 0.4)); }

/* ==========================================
   GALERÍA DE FOTOS
   ========================================== */
.gallery { padding: 100px 0; background-color: var(--surface); }
.gallery-filters { display: flex; justify-content: center; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; }
.filter-btn {
  background-color: var(--primary); color: var(--secondary); border: 1px solid #444;
  padding: 10px 24px; border-radius: 30px; cursor: pointer; font-family: var(--font-headings); font-weight: 600; transition: all 0.3s ease;
}
.filter-btn.active, .filter-btn:hover { background-color: var(--tertiary); border-color: var(--tertiary); color: var(--secondary); }

.gallery-container-wrapper { display: none; gap: 16px; animation: fadeIn 0.5s ease-in-out; }
.gallery-container-wrapper.active { display: grid; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Estructuras Grid */
.grid-layout-6 { grid-template-columns: repeat(6, 1fr); grid-auto-rows: 280px; }
.grid-layout-6 .item-1 { grid-column: span 6; }
.grid-layout-6 .item-2, .grid-layout-6 .item-3 { grid-column: span 3; }
.grid-layout-6 .item-4, .grid-layout-6 .item-5, .grid-layout-6 .item-6 { grid-column: span 2; }

.grid-layout-9 { grid-template-columns: repeat(6, 1fr); grid-auto-rows: 280px; }
.grid-layout-9 .item-1, .grid-layout-9 .item-9 { grid-column: span 6; }
.grid-layout-9 .item-2, .grid-layout-9 .item-3, .grid-layout-9 .item-7, .grid-layout-9 .item-8 { grid-column: span 3; }
.grid-layout-9 .item-4, .grid-layout-9 .item-5, .grid-layout-9 .item-6 { grid-column: span 2; }

.grid-layout-4 { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 300px; }

.gallery-item { background-size: cover; background-position: center; border-radius: 8px; cursor: pointer; transition: all 0.4s ease; filter: brightness(0.85); }
.gallery-item:hover { transform: scale(1.02); filter: brightness(1); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5); z-index: 2; }

/* ==========================================
   LIGHTBOX
   ========================================== */
.lightbox {
  display: none; position: fixed; z-index: 10000; top: 0; left: 0; width: 100%; height: 100%;
  background-color: rgba(0, 0, 0, 0.85); align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s ease; backdrop-filter: blur(5px);
}
.lightbox.show { display: flex; opacity: 1; }
.lightbox-img { max-width: 90%; max-height: 90%; border-radius: 8px; box-shadow: 0 10px 40px rgba(0,0,0,0.5); object-fit: contain; transform: scale(0.95); transition: transform 0.3s ease; }
.lightbox.show .lightbox-img { transform: scale(1); }
.lightbox-close { position: absolute; top: 25px; right: 40px; color: var(--secondary); font-size: 45px; font-weight: bold; cursor: pointer; transition: color 0.2s ease; z-index: 10001; }
.lightbox-close:hover { color: var(--tertiary); }

/* ==========================================
   ENTORNO LOCAL
   ========================================== */
.local { padding: 100px 0; background-color: var(--primary); }
.local-category-title { color: var(--secondary); font-size: 1.5rem; margin-bottom: 30px; margin-top: 60px; border-bottom: 1px solid var(--surface-light); padding-bottom: 10px; font-family: var(--font-headings); }
.grid-local-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; }
.local-card { background-color: var(--surface); border-radius: 12px; overflow: hidden; border: 1px solid #333; transition: transform 0.3s ease, border-color 0.3s ease; display: flex; flex-direction: column; }
.local-card:hover { transform: translateY(-6px); border-color: var(--tertiary); box-shadow: 0 12px 30px rgba(198, 198, 198, 0.1); }
.local-card-img { height: 190px; background-size: cover; background-position: center; position: relative; }
.local-card-tag { position: absolute; bottom: 15px; left: 15px; background-color: var(--tertiary); color: var(--secondary); font-size: 0.8rem; font-weight: 700; padding: 6px 14px; border-radius: 30px; text-transform: uppercase; box-shadow: 0 4px 10px rgba(0,0,0,0.5); }
.local-card-body { padding: 24px; flex-grow: 1; }
.local-card-body h4 { font-size: 1.25rem; margin-bottom: 12px; color: var(--secondary); }
.local-card-body p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.6; }

/* ==========================================
   CONTACTO & MAPA
   ========================================== */
.contact { padding: 100px 0; background-color: var(--primary); border-top: 1px solid #333; }
.grid-contact { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 64px; }
.contact-info h2, .contact-map h2 { font-size: 2rem; margin-bottom: 16px; }
.contact-info p, .contact-map p { color: var(--text-muted); margin-bottom: 32px; }
.contact-form .form-group { margin-bottom: 20px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 16px; background-color: var(--primary); border: 1px solid #444; border-radius: 8px; color: var(--secondary); font-family: var(--font-body); font-size: 1rem; transition: all 0.3s ease; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--tertiary); box-shadow: 0 0 8px rgba(198, 198, 198, 0.1); }

.map-placeholder { background-color: var(--primary); height: 350px; border-radius: 12px; border: 1px solid #444; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.map-placeholder iframe { width: 100% !important; height: 100% !important; border: none !important; }

/* ==========================================
   WHATSAPP & FOOTER
   ========================================== */
.whatsapp-float { position: fixed; bottom: 24px; right: 24px; background-color: #25d366; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(0,0,0,0.4); z-index: 9999; transition: all 0.3s ease; }
.whatsapp-float:hover { transform: scale(1.1) translateY(-4px); background-color: #20ba5a; box-shadow: 0 8px 24px rgba(37,211,102,0.5); }
.whatsapp-icon-img { width: 36px; height: 36px; object-fit: contain; }

.footer { background-color: var(--surface); padding: 40px 0; border-top: 1px solid #333; }
.footer-container { display: flex; justify-content: space-between; align-items: center; position: relative; }
.footer-contact p { color: var(--text-muted); font-size: 0.95rem; margin-bottom: 4px; }
.footer-credits { position: absolute; left: 50%; transform: translateX(-50%); color: var(--text-muted); font-size: 0.9rem; text-decoration: none;}
.footer-credits strong { color: var(--secondary); text-decoration: none;}
.footer-credits a {text-decoration: none; color: var(--secondary);}

/* ==========================================
   MEDIA QUERIES (OPTIMIZADAS)
   ========================================== */
@media (min-width: 769px) {
  .grid-layout-9 .item-9 { background-position: center 75%; }
}

@media (max-width: 992px) {
  .hero-title { font-size: 2.5rem; }
}

@media (max-width: 768px) {
  .section-title { font-size: 1.75rem; }
  .hero { height: 80vh; }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: 1rem; }
  .grid-contact { grid-template-columns: 1fr; gap: 40px; }
  .whatsapp-float { width: 52px; height: 52px; bottom: 16px; right: 16px; }
  
  /* Navbar Mobile */
  .nav-toggle { display: block; }
  .nav-links { position: absolute; top: 80px; left: -100%; flex-direction: column; background-color: var(--primary); width: 100%; height: calc(100vh - 80px); justify-content: flex-start; align-items: flex-start; padding-left: 30px; padding-top: 40px; gap: 24px; transition: left 0.4s ease; border-top: 1px solid #333; }
  .nav-links.active { left: 0; }
  
  /* Footer Mobile */
  .footer-container { flex-direction: column; align-items: flex-start; gap: 30px; }
  .footer-credits { position: static; transform: none; align-self: center; margin-top: 10px; }

  /* Sliders a Grillas 2 Columnas */
  .features-slider-wrapper, .reviews-slider-wrapper { -webkit-mask-image: none !important; mask-image: none !important; padding: 0 15px !important; overflow: hidden !important; }
  .features-track, .reviews-track { animation: none !important; display: grid !important; grid-template-columns: repeat(2, 1fr) !important; gap: 12px !important; width: 100% !important; overflow: hidden !important; padding: 10px 0 !important; }
  .feature-card, .review-card { width: 100% !important; margin: 0 !important; padding: 15px 12px !important; transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease !important; }
  .feature-card:active, .review-card:active { transform: translateY(-5px) !important; box-shadow: 0 8px 20px rgba(38,131,192,0.2) !important; border-color: var(--tertiary) !important; }
  
  .feature-icon-img { width: 28px !important; height: 28px !important; margin-bottom: 8px !important; }
  .feature-card h3 { font-size: 0.9rem !important; margin-bottom: 5px !important; }
  .feature-card p { font-size: 0.75rem !important; line-height: 1.3 !important; }
  .review-stars { font-size: 0.7rem !important; margin-bottom: 8px !important; letter-spacing: 0 !important; }
  .review-stars-img { height: 16px !important; margin-bottom: 5px !important; }
  .review-text { font-size: 0.75rem !important; margin-bottom: 8px !important; line-height: 1.3 !important; }
  .review-author { font-size: 0.85rem !important; }
  
  /* Ocultar clones JS en celular */
  .features-track .feature-card:nth-child(n+9), .reviews-track .review-card:nth-child(n+11) { display: none !important; }
}

@media (max-width: 480px) {
  /* Grilla Galería a 1 Columna en teléfonos chicos */
  .grid-layout-6, .grid-layout-4, .grid-layout-9 { grid-template-columns: 1fr; grid-auto-rows: 200px; }
  .grid-layout-6 > div, .grid-layout-4 > div, .grid-layout-9 > div { grid-column: span 1 !important; }
  .btn { width: 100%; }
}