/* ============================================================
   HACIENDA DE CHACABUCO · Estilos principales
   ============================================================ */

/* ---------- Variables ---------- */
:root {
  --green:       #2c5f2e;
  --green-dark:  #1e4220;
  --green-light: #4a8c4d;
  --gold:        #c8a96e;
  --gold-dark:   #a8854a;
  --cream:       #f5f0e8;
  --white:       #ffffff;
  --text:        #1a1a1a;
  --text-soft:   #555555;
  --text-muted:  #888888;
  --border:      #e0d8cc;
  --shadow:      0 4px 24px rgba(0,0,0,0.10);
  --shadow-lg:   0 8px 48px rgba(0,0,0,0.15);
  --radius:      12px;
  --font-serif:  'Playfair Display', Georgia, serif;
  --font-sans:   'Open Sans', system-ui, sans-serif;
  --nav-h:       72px;
  --transition:  0.3s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { text-decoration: none; color: inherit; }

ul { list-style: none; }

/* ---------- Utilidades ---------- */
.container {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 0 24px;
}

.mt-2 { margin-top: 1.5rem; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(255,255,255,0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.10);
}

.navbar.scrolled .nav-logo .logo-text,
.navbar.scrolled .nav-logo .logo-icon { color: var(--green); }

.navbar.scrolled .nav-link { color: var(--text); }
.navbar.scrolled .nav-link:hover { color: var(--green); }

.navbar.scrolled .hamburger span { background: var(--green); }

.nav-container {
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  color: var(--gold);
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--white);
  transition: color var(--transition);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  transition: color var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: center;
}

.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }

.nav-cta {
  background: var(--gold);
  color: var(--white) !important;
  padding: 0.6rem 1.4rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  background: var(--gold-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(200,169,110,0.35);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
}

.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero-slide.active { opacity: 1; }

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.35) 0%,
    rgba(0,0,0,0.55) 50%,
    rgba(0,0,0,0.70) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--white);
  padding: 0 24px;
  max-width: 900px;
  animation: fadeInUp 1s ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1rem;
  text-shadow: 0 2px 16px rgba(0,0,0,0.4);
}

.hero-title .accent { color: var(--gold); }

.hero-location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 2rem;
}

.hero-price-box {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
  padding: 0.8rem 2rem;
  border-radius: 50px;
  margin-bottom: 2rem;
}

.hero-price-label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
}

.hero-price {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--gold);
}

.hero-price-currency {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.hero-scroll-indicator span {
  display: block;
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--gold));
  margin: 0 auto;
  animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
  0%,100% { opacity: 0; transform: scaleY(0.3) translateY(-10px); }
  50%      { opacity: 1; transform: scaleY(1) translateY(0); }
}

.slide-dots {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  z-index: 2;
  display: flex;
  gap: 8px;
}

.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
}

.dot.active {
  background: var(--gold);
  border-color: var(--gold);
  transform: scale(1.2);
}

/* ============================================================
   BOTONES
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-transform: uppercase;
}

.btn-primary {
  background: var(--gold);
  color: var(--white);
  border-color: var(--gold);
}

.btn-primary:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(200,169,110,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-full { width: 100%; justify-content: center; }

/* ============================================================
   SECCIONES — ENCABEZADOS
   ============================================================ */
section { padding: 96px 0; }

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--green-dark);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-divider {
  width: 60px;
  height: 3px;
  background: var(--gold);
  margin: 0 auto 1rem;
  border-radius: 2px;
}

.section-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ============================================================
   FICHA DE LA PARCELA
   ============================================================ */
.parcela { background: var(--white); }

.parcela-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

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

.parcela-description strong { color: var(--text); }

.parcela-ficha {
  background: var(--cream);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.ficha-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.ficha-item:last-child { border-bottom: none; padding-bottom: 0; }
.ficha-item:first-child { padding-top: 0; }

.ficha-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2.4rem;
  height: 2.4rem;
  background: rgba(44,95,46,0.09);
  border-radius: 50%;
  color: var(--green);
}

.ficha-icon svg {
  width: 1.1rem;
  height: 1.1rem;
}

.ficha-data { display: flex; flex-direction: column; }

.ficha-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.ficha-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

/* ============================================================
   CARACTERÍSTICAS
   ============================================================ */
.caracteristicas { background: var(--cream); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--green), var(--green-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.4rem;
  color: var(--white);
}

.card-icon svg {
  width: 1.75rem;
  height: 1.75rem;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green-dark);
  margin-bottom: 0.75rem;
  letter-spacing: 0.03em;
}

.card-text { font-size: 0.95rem; color: var(--text-soft); line-height: 1.7; }

/* Trust badges */
.trust-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 0.6rem 1.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-soft);
  box-shadow: var(--shadow);
}

.badge-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
}

.badge-icon svg {
  width: 1rem;
  height: 1rem;
}

/* ============================================================
   GALERÍA
   ============================================================ */
.galeria { background: var(--white); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.gallery-item--wide { grid-column: span 2; }

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  cursor: pointer;
  aspect-ratio: 4/3;
  background: var(--cream);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img { transform: scale(1.06); }

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(44,95,46,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.gallery-overlay span {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

/* ============================================================
   UBICACIÓN
   ============================================================ */
.ubicacion { background: var(--cream); }

.ubicacion-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 3rem;
  align-items: start;
}

.ubicacion-info h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--green-dark);
  margin-bottom: 1.5rem;
}

.directions-list {
  list-style: decimal;
  padding-left: 1.5rem;
  margin-bottom: 2rem;
}

.directions-list li {
  padding: 0.5rem 0;
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.6;
}

.ubicacion-links { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.map-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all var(--transition);
}

.waze-btn {
  background: #00c3ff;
  color: var(--white);
}

.waze-btn:hover { background: #00a8db; transform: translateY(-2px); }

.gmaps-btn {
  background: #4285f4;
  color: var(--white);
}

.gmaps-btn:hover { background: #2a6dd9; transform: translateY(-2px); }

.ubicacion-mapa iframe {
  box-shadow: var(--shadow-lg);
}

/* ============================================================
   CONTACTO
   ============================================================ */
.contacto { background: var(--green-dark); }

.contacto .section-eyebrow { color: var(--gold); }
.contacto .section-title { color: var(--white); }

.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  align-items: start;
}

.vendedor-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.vendedor-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
}

.vendedor-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 0.2rem;
}

.vendedor-rol {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
}

.contact-items { display: flex; flex-direction: column; gap: 1rem; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  transition: all var(--transition);
}

.contact-item:hover {
  background: rgba(255,255,255,0.12);
  transform: translateX(4px);
}

.contact-icon {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.wa-icon { background: #25d366; }
.phone-icon { background: var(--gold); }

.contact-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.contact-value {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

/* Formulario */
.contacto-form {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.2rem;
}

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

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(44,95,46,0.1);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-note {
  margin-top: 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #0f2611;
  padding: 3rem 0 1.5rem;
  color: rgba(255,255,255,0.7);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--gold);
  margin-bottom: 0.5rem;
}

.footer-address { font-size: 0.85rem; }

.footer-heading {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.footer-contact a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 0.95rem;
  transition: color var(--transition);
}

.footer-contact a:hover { color: var(--gold); }

.footer-bottom {
  font-size: 0.78rem;
  text-align: center;
  color: rgba(255,255,255,0.35);
}

/* ============================================================
   WHATSAPP FLOTANTE
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 60px; height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 24px rgba(37,211,102,0.45);
  transition: transform var(--transition), box-shadow var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37,211,102,0.55);
}

.whatsapp-float svg { color: var(--white); }

.wa-tooltip {
  position: absolute;
  right: 70px;
  background: var(--text);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  padding: 0.4rem 0.9rem;
  border-radius: 6px;
  opacity: 0;
  transform: translateX(8px);
  transition: all var(--transition);
  pointer-events: none;
}

.wa-tooltip::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--text);
  border-right: none;
}

.whatsapp-float:hover .wa-tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* Pulse animation */
.whatsapp-float::before {
  content: '';
  position: absolute;
  width: 100%; height: 100%;
  border-radius: 50%;
  background: #25d366;
  z-index: -1;
  animation: waPulse 2.5s ease infinite;
}

@keyframes waPulse {
  0%   { transform: scale(1); opacity: 0.6; }
  70%  { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(1.5); opacity: 0; }
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.92);
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox.open { display: flex; }

.lightbox-inner {
  max-width: 90vw;
  max-height: 85vh;
  text-align: center;
}

.lightbox-inner img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 0 80px rgba(0,0,0,0.5);
}

.lightbox-caption {
  margin-top: 1rem;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: fixed;
  background: rgba(255,255,255,0.1);
  border: none;
  color: var(--white);
  cursor: pointer;
  border-radius: 50%;
  transition: background var(--transition);
}

.lightbox-close {
  top: 1.5rem; right: 1.5rem;
  width: 44px; height: 44px;
  font-size: 1.2rem;
}

.lightbox-prev,
.lightbox-next {
  top: 50%;
  transform: translateY(-50%);
  width: 52px; height: 52px;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-prev { left: 1.5rem; }
.lightbox-next { right: 1.5rem; }

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { background: rgba(255,255,255,0.2); }

/* ============================================================
   RESPONSIVE — TABLET
   ============================================================ */
@media (max-width: 900px) {
  .parcela-grid { grid-template-columns: 1fr; gap: 2rem; }
  .cards-grid   { grid-template-columns: 1fr; }
  .ubicacion-grid { grid-template-columns: 1fr; }
  .contacto-grid { grid-template-columns: 1fr; gap: 2rem; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-item--wide { grid-column: span 2; }
  .form-row { grid-template-columns: 1fr; }
}

/* ============================================================
   RESPONSIVE — MOBILE
   ============================================================ */
@media (max-width: 640px) {
  :root { --nav-h: 60px; }

  section { padding: 64px 0; }

  /* Navbar mobile */
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(15,38,17,0.98);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 1rem;
    font-size: 1rem;
    color: rgba(255,255,255,0.85) !important;
    border-bottom: 1px solid rgba(255,255,255,0.07);
  }

  .nav-cta {
    margin: 1rem auto 0;
    width: calc(100% - 3rem);
    text-align: center;
    justify-content: center;
  }

  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn { width: 100%; max-width: 320px; justify-content: center; }

  .hero-price { font-size: 2rem; }

  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item--wide { grid-column: span 1; }

  .trust-badges { flex-direction: column; align-items: center; }

  .footer-content { flex-direction: column; }

  .contacto-form { padding: 1.5rem; }

  .lightbox-prev { left: 0.5rem; }
  .lightbox-next { right: 0.5rem; }

  .ubicacion-links { flex-direction: column; }
}