/* =========================================================
   EL CAMINO DE FRUTILLAR — Design System
   Inspired by Biosfera Austral: cream, navy, serif + sans
   ========================================================= */

/* --- Tokens --- */
:root {
  --cream:       #F0EDE8;
  --cream-dark:  #E6E0D8;
  --navy:        #1A2B38;
  --navy-light:  #2C4255;
  --terracota:   #C8693A;
  --terracota-h: #B05A2E;
  --white:       #FFFFFF;
  --text:        #1A2B38;
  --text-muted:  #6B7A86;
  --border:      rgba(26,43,56,0.12);

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;

  --max-w: 1280px;
  --nav-h: 72px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-sans); color: var(--text); background: var(--cream); overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* --- Utility --- */
.section-tag {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--terracota);
  display: block;
  margin-bottom: 1.25rem;
}
.section-tag--light { color: rgba(255,255,255,0.7); }

.btn {
  display: inline-block;
  padding: 0.85rem 2.25rem;
  border-radius: 3px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.25s var(--ease);
  cursor: pointer;
}
.btn-primary {
  background: var(--terracota);
  color: var(--white);
  border: 2px solid var(--terracota);
}
.btn-primary:hover { background: var(--terracota-h); border-color: var(--terracota-h); transform: translateY(-1px); }

.btn-light {
  background: var(--white);
  color: var(--navy);
  border: 2px solid var(--white);
}
.btn-light:hover { background: transparent; color: var(--white); }

.btn-full { width: 100%; text-align: center; }

.btn-text {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy);
  border-bottom: 1px solid var(--navy);
  padding-bottom: 2px;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap 0.2s var(--ease), color 0.2s;
  margin-top: 2rem;
}
.btn-text:hover { gap: 0.7rem; color: var(--terracota); border-color: var(--terracota); }

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }

/* =========================================================
   NAVBAR
   ========================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background 0.4s var(--ease), backdrop-filter 0.4s, box-shadow 0.4s;
}
.navbar.scrolled {
  background: var(--white);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; }
.logo-img { height: 44px; width: auto; transition: opacity 0.3s; }
.logo-dark { position: absolute; opacity: 0; pointer-events: none; }
.navbar.scrolled .logo-white { opacity: 0; pointer-events: none; }
.navbar.scrolled .logo-dark { opacity: 1; pointer-events: auto; position: static; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}
.nav-links a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.92);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--white); }
.navbar.scrolled .nav-links a { color: var(--navy-light); }
.navbar.scrolled .nav-links a:hover { color: var(--navy); }

.nav-links .nav-cta {
  background: var(--terracota);
  color: var(--white) !important;
  padding: 0.55rem 1.4rem;
  border-radius: 3px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}
.nav-links .nav-cta:hover { background: var(--terracota-h); transform: translateY(-1px); }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: background 0.3s, transform 0.3s;
}
.navbar.scrolled .menu-toggle span { background: var(--navy); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; }
.hero-img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(10,20,28,0.25) 0%, rgba(10,20,28,0.6) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  padding: 0 1.5rem;
  animation: fadeUp 1.1s var(--ease) 0.2s both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: none; }
}
.hero-logo { height: 60px; margin: 0 auto 2.5rem; filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3)); }
.hero-claim {
  font-family: var(--font-serif);
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--white);
  margin-bottom: 1.25rem;
}
.hero-sub {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  margin-bottom: 2.5rem;
}
.scroll-indicator {
  position: absolute;
  bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  animation: bounce 2s ease-in-out infinite;
  z-index: 2;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* =========================================================
   FILOSOFÍA
   ========================================================= */
.filosofia {
  background: var(--cream);
  padding: 8rem 0;
}
.filosofia-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2.5rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 4rem;
  align-items: start;
}
.filosofia-label { padding-top: 0.4rem; }
.filosofia-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.filosofia-claim {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 300;
  line-height: 1.15;
  color: var(--navy);
}
.filosofia-claim em { font-style: italic; color: var(--navy-light); }
.filosofia-text p {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

/* =========================================================
   PILARES
   ========================================================= */
.pilares { background: var(--white); }

.pilar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 600px;
}
.pilar--reverse { direction: rtl; }
.pilar--reverse > * { direction: ltr; }

.pilar-img {
  position: relative;
  overflow: hidden;
}
.pilar-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease);
}
.pilar:hover .pilar-img img { transform: scale(1.04); }

.pilar-content {
  padding: 5rem 5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--white);
}
.pilar-index {
  font-family: var(--font-serif);
  font-size: 4.5rem;
  font-weight: 300;
  color: var(--cream-dark);
  line-height: 1;
  margin-bottom: 1.5rem;
  display: block;
}
.pilar-content h3 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 1.5rem;
}
.pilar-content p {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-muted);
  max-width: 480px;
}

/* =========================================================
   MASTER PLAN
   ========================================================= */
.masterplan {
  background: var(--cream);
  padding: 8rem 0;
}
.masterplan-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2.5rem;
}
.masterplan-header {
  max-width: 640px;
  margin-bottom: 4rem;
}
.masterplan-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 1.25rem;
}
.masterplan-header p {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-muted);
}
.masterplan-visual {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2.5rem;
  align-items: start;
}
.masterplan-photo { border-radius: 4px; overflow: hidden; box-shadow: 0 8px 40px rgba(26,43,56,0.12); }
.masterplan-photo img { width: 100%; height: 500px; object-fit: cover; }

.masterplan-stats { display: flex; flex-direction: column; gap: 1px; }
.stat-card {
  background: var(--white);
  padding: 2rem 2.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.stat-card:last-child { border-bottom: none; }
.stat-card:hover { background: var(--cream-dark); }
.stat-number {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--navy);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* =========================================================
   GALERÍA
   ========================================================= */
.galeria {
  background: var(--navy);
  padding: 6rem 0;
}
.galeria-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2.5rem;
}
.galeria-header { margin-bottom: 3rem; }
.galeria-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 300;
  color: var(--white);
}
.galeria-header .section-tag { color: rgba(255,255,255,0.5); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 240px;
  gap: 6px;
}
.gallery-item { overflow: hidden; border-radius: 2px; cursor: pointer; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.55s var(--ease), filter 0.3s; filter: brightness(0.88); }
.gallery-item:hover img { transform: scale(1.06); filter: brightness(1); }
.gallery-item--wide { grid-column: span 2; }
.gallery-item--tall { grid-row: span 2; }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed; inset: 0; z-index: 999;
  background: rgba(10,16,22,0.95);
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox-img { max-width: 90vw; max-height: 88vh; object-fit: contain; border-radius: 3px; box-shadow: 0 20px 80px rgba(0,0,0,0.6); }
.lightbox-close {
  position: absolute; top: 1.5rem; right: 2rem;
  color: rgba(255,255,255,0.7); font-size: 2.2rem; line-height: 1;
  transition: color 0.2s;
}
.lightbox-close:hover { color: var(--white); }
.lightbox-prev, .lightbox-next {
  position: absolute; top: 50%; transform: translateY(-50%);
  color: rgba(255,255,255,0.6); font-size: 3rem; line-height: 1;
  padding: 0.5rem 1rem;
  transition: color 0.2s;
}
.lightbox-prev { left: 1rem; }
.lightbox-next { right: 1rem; }
.lightbox-prev:hover, .lightbox-next:hover { color: var(--white); }

/* =========================================================
   CTA FULL-BLEED
   ========================================================= */
.cta-fullbleed {
  position: relative;
  height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.cta-bg { position: absolute; inset: 0; }
.cta-bg img { width: 100%; height: 100%; object-fit: cover; }
.cta-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,20,28,0.75) 0%, rgba(10,20,28,0.5) 100%);
}
.cta-content {
  position: relative; z-index: 2;
  text-align: center;
  color: var(--white);
  padding: 0 2rem;
  max-width: 700px;
}
.cta-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.cta-content h2 em { font-style: italic; }
.cta-content p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 2.25rem;
}

/* =========================================================
   UBICACIÓN
   ========================================================= */
.ubicacion { background: var(--cream); padding: 8rem 0; }
.ubicacion-inner { max-width: var(--max-w); margin: 0 auto; padding: 0 2.5rem; }
.ubicacion-header { max-width: 540px; margin-bottom: 3.5rem; }
.ubicacion-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 1.25rem;
}
.ubicacion-header p { font-size: 0.95rem; line-height: 1.8; color: var(--text-muted); }
.ubicacion-map { border-radius: 4px; overflow: hidden; box-shadow: 0 6px 30px rgba(26,43,56,0.1); margin-bottom: 3rem; }

.distances {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--white);
}
.distance-item {
  flex: 1;
  padding: 2rem;
  text-align: center;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.distance-item:last-child { border-right: none; }
.distance-value {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--navy);
}
.distance-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* =========================================================
   CONTACTO
   ========================================================= */
.contacto { background: var(--white); padding: 8rem 0; }
.contacto-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}
.contacto-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 3.5vw, 3.2rem);
  font-weight: 300;
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 1.25rem;
}
.contacto-header h2 em { font-style: italic; }
.contacto-header p { font-size: 0.95rem; line-height: 1.8; color: var(--text-muted); margin-bottom: 1.75rem; }
.contact-links { display: flex; flex-direction: column; gap: 0.5rem; }
.contact-link {
  font-size: 0.85rem;
  color: var(--terracota);
  border-bottom: 1px solid transparent;
  display: inline-block;
  transition: border-color 0.2s;
}
.contact-link:hover { border-color: var(--terracota); }

.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group.full { grid-column: 1/-1; }
.form-group label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--terracota);
  background: var(--white);
}
.form-group textarea { resize: vertical; min-height: 120px; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--navy);
  padding: 5rem 0 3rem;
  color: rgba(255,255,255,0.65);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.footer-logo { height: 50px; opacity: 0.85; margin-bottom: 0.5rem; }
.footer-tagline {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: rgba(255,255,255,0.5);
}
.footer-info { font-size: 0.8rem; letter-spacing: 0.04em; }
.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.5rem;
}
.footer-links a {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  transition: color 0.2s;
}
.footer-links a:hover { color: rgba(255,255,255,0.9); }
.footer-copy {
  font-size: 0.72rem;
  margin-top: 1.5rem;
  color: rgba(255,255,255,0.25);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  width: 100%;
}

/* =========================================================
   WHATSAPP FLOAT
   ========================================================= */
.whatsapp-float {
  position: fixed;
  bottom: 2rem; right: 2rem;
  z-index: 50;
  background: #25D366;
  color: var(--white);
  border-radius: 50px;
  padding: 0.75rem 1.25rem 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: transform 0.25s var(--ease), box-shadow 0.25s;
}
.whatsapp-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(37,211,102,0.45);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .filosofia-inner { grid-template-columns: 160px 1fr; gap: 2.5rem; }
  .filosofia-content { grid-template-columns: 1fr; gap: 2rem; }
  .masterplan-visual { grid-template-columns: 1fr; }
  .masterplan-stats { flex-direction: row; flex-wrap: wrap; }
  .stat-card { flex: 1; min-width: 140px; }
  .pilar { grid-template-columns: 1fr 1fr; min-height: 480px; }
  .pilar-content { padding: 3.5rem; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
  .contacto-inner { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  :root { --nav-h: 64px; }

  .nav-links { display: none; flex-direction: column; gap: 0; position: fixed; top: var(--nav-h); left: 0; right: 0; background: var(--white); padding: 1.5rem 0; box-shadow: 0 8px 30px rgba(0,0,0,0.1); }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid var(--border); }
  .nav-links a { display: block; padding: 1rem 2rem; color: var(--navy) !important; }
  .nav-links .nav-cta { margin: 1rem 2rem; border-radius: 3px; text-align: center; }
  .menu-toggle { display: flex; }

  .filosofia-inner { grid-template-columns: 1fr; gap: 2rem; }
  .filosofia-label { margin-bottom: 0; }

  .pilar { grid-template-columns: 1fr; min-height: auto; }
  .pilar--reverse { direction: ltr; }
  .pilar-img { height: 300px; }
  .pilar-content { padding: 3rem 1.75rem; }
  .pilar-index { font-size: 3rem; }

  .gallery-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 200px; }
  .gallery-item--wide { grid-column: span 2; }
  .gallery-item--tall { grid-row: span 1; }

  .distances { flex-direction: column; }
  .distance-item { border-right: none; border-bottom: 1px solid var(--border); }
  .distance-item:last-child { border-bottom: none; }

  .form-row { grid-template-columns: 1fr; }

  .masterplan-inner, .ubicacion-inner, .galeria-inner,
  .contacto-inner, .footer-inner { padding: 0 1.5rem; }

  .filosofia, .masterplan, .ubicacion, .contacto { padding: 5rem 0; }
  .filosofia-inner { padding: 0 1.5rem; }
  .masterplan-inner { padding: 0 1.5rem; }

  .hero-logo { height: 46px; }

  .cta-fullbleed { height: 480px; }

  .footer-links { gap: 1rem; }
}

@media (max-width: 480px) {
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item--wide { grid-column: span 1; }
  .whatsapp-float span { display: none; }
  .whatsapp-float { padding: 0.9rem; border-radius: 50%; }
}