:root {
  --negro: #0a0a0a;
  --acero: #1c1c1c;
  --carbon: #2a2a2a;
  --gris: #6b6b6b;
  --gris-claro: #b0b0b0;
  --blanco: #f5f4f0;
  --dorado: #c9a84c;
  --dorado-oscuro: #a07830;
  --whatsapp: #25D366;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--negro);
  color: var(--blanco);
  font-family: 'Barlow', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 6vw;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201,168,76,0.15);
  transition: background 0.3s;
}


.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.7rem;
  letter-spacing: 3px;
  gap: 10px;
  text-decoration: none;
  color: var(--dorado);
}
.nav-logo span { color: var(--blanco); }

.nav-links {
  display: flex;
  gap: 36px;
  list-style: none;
}
.nav-links a {
  color: var(--gris-claro);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
  transition: color 0.25s;
}
.nav-links a:hover { color: var(--dorado); }

.nav-logo-img {
  width:40px;
  height:40px;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(0,0,0,0.2);
}

/* ── HERO ── */
#inicio {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 6vw 80px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(201,168,76,0.06) 0%, transparent 60%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.015) 60px,
      rgba(255,255,255,0.015) 61px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,0.015) 60px,
      rgba(255,255,255,0.015) 61px
    );
}

.hero-accent {
  position: absolute;
  right: -80px; top: 50%;
  transform: translateY(-50%);
  width: 55vw;
  height: 55vw;
  border-radius: 50%;
  border: 1px solid rgba(201,168,76,0.08);
  pointer-events: none;
}
.hero-accent::before {
  content: '';
  position: absolute;
  inset: 40px;
  border-radius: 50%;
  border: 1px solid rgba(201,168,76,0.06);
}
.hero-accent::after {
  content: '';
  position: absolute;
  inset: 80px;
  border-radius: 50%;
  border: 1px solid rgba(201,168,76,0.04);
}

.hero-content {
  position: relative;
  max-width: 680px;
}

.hero-eyebrow {
  font-size: 0.75rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--dorado);
  margin-bottom: 20px;
  font-weight: 600;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 9vw, 8rem);
  line-height: 0.9;
  letter-spacing: 2px;
  margin-bottom: 30px;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}
.hero-title em {
  color: var(--dorado);
  font-style: normal;
  display: block;
}

.hero-logo-img {
   width:130px;
  height:90px;
  vertical-align: middle;
  margin-right: 15px;
}

.hero-desc {
  font-size: 1.1rem;
  line-height: 2.2;
  color: var(--gris-claro);
  max-width: 500px;
  margin-bottom: 48px;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}

.hero-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--dorado);
  color: var(--negro);
}
.btn-primary:hover {
  background: #dbb85a;
  box-shadow: 0 8px 30px rgba(201,168,76,0.4);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: #fff;
}
.btn-whatsapp:hover {
  background: #1ebc5a;
  box-shadow: 0 8px 30px rgba(37,211,102,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--blanco);
  border: 1px solid rgba(245,244,240,0.3);
}
.btn-outline:hover {
  border-color: var(--dorado);
  color: var(--dorado);
}

/* ── STATS ── */
.stats-bar {
  background: var(--acero);
  border-top: 1px solid rgba(201,168,76,0.15);
  border-bottom: 1px solid rgba(201,168,76,0.15);
  display: flex;
  justify-content: center;
  gap: 0;
}

.stat-item {
  padding: 40px 60px;
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.05);
  flex: 1;
  max-width: 260px;
}
.stat-item:last-child { border-right: none; }

.stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  color: var(--dorado);
  letter-spacing: 2px;
  line-height: 1;
}

.stat-label {
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gris);
  margin-top: 6px;
}

/* ── SECCIONES COMUNES ── */
section { padding: 100px 6vw; }

.section-tag {
  font-size: 0.72rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--dorado);
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3.5rem, 5vw, 4rem);
  letter-spacing: 1px;
  line-height: 1.1;
  margin-bottom: 40px;
}

.section-sub {
  color: var(--gris-claro);
  font-size: 1.3rem;
  line-height: 1.7;
  max-width: 650px;
}

/* ── TRABAJOS / GALERÍA ── */
#trabajos { background: var(--negro); }

.gallery-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 60px;
  flex-wrap: wrap;
  gap: 24px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 16px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  background: var(--carbon);
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery-item:first-child {
  grid-column: span 2;
  aspect-ratio: 16/9;
}

.gallery-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display:block;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gallery-item:hover .gallery-img {
  transform: scale(1.06);
  filter: grayscale(0%);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.85) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
  display: flex;
  align-items: flex-end;
  padding: 24px;
}

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

.gallery-label {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 2px;
  color: var(--dorado);
}

/* ── SERVICIOS ── */
#servicios { background: var(--acero); }

.services-header {
  text-align: center;
  margin-bottom: 64px;
}
.services-header .section-sub { margin: 0 auto; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2px;
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.1);
}

.service-card {
  background: var(--acero);
  padding: 48px 40px;
  transition: background 0.3s;
}

.service-card:hover { background: var(--carbon); }

.service-icon {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.service-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 2px;
  color: var(--dorado);
  margin-bottom: 12px;
}

.service-desc {
  color: var(--gris-claro);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ── PROCESO ── */
#proceso { background: var(--negro); }

.proceso-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.proceso-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  position: relative;
}

.step-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  color: rgba(201,168,76,0.2);
  line-height: 1;
  min-width: 56px;
  transition: color 0.3s;
}

.step:hover .step-num { color: var(--dorado); }

.step-content h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--gris-claro);
  font-size: 0.9rem;
  line-height: 1.65;
}

.proceso-visual {
  background: var(--carbon);
  border: 1px solid rgba(201,168,76,0.12);
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
}

.proceso-visual::before {
  content: '★ GARANTÍA DE CALIDAD';
  position: absolute;
  top: -1px; left: -1px;
  background: var(--dorado);
  color: var(--negro);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 6px 16px;
}

.garantia-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.garantia-item:last-child { border-bottom: none; }

.garantia-icon { font-size: 1.8rem; }

.garantia-text h4 {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.garantia-text p {
  color: var(--gris);
  font-size: 0.82rem;
}

/* ── COTIZA ── */
#cotizar { background: var(--carbon); }

.cotizar-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  text-align: center;
}

.cotizar-info .section-sub { margin-bottom: 40px; }

.contacto-directo {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contacto-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: rgba(245,244,240,0.04);
  border: 1px solid rgba(245,244,240,0.07);
  color: var(--blanco);
  text-decoration: none;
  font-size: 0.9rem;
  transition: border-color 0.25s, background 0.25s;
}

.contacto-link:hover {
  border-color: var(--dorado);
  background: rgba(201,168,76,0.05);
}

.contacto-link .c-icon { font-size: 1.4rem; }
.contacto-link .c-label { font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase; color: var(--gris); display: block; }
.contacto-link .c-val { font-weight: 600; color: var(--blanco); }

/* FORM */
.cotizar-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gris);
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(245,244,240,0.04);
  border: 1px solid rgba(245,244,240,0.1);
  color: var(--blanco);
  padding: 14px 18px;
  font-family: 'Barlow', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.25s;
  resize: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--gris); }

.form-group select option { background: var(--carbon); color: var(--blanco); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--dorado);
  background: rgba(201,168,76,0.04);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 36px;
  background: var(--whatsapp);
  color: #fff;
  border: none;
  cursor: pointer;
  font-family: 'Barlow', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 8px;
  transition: background 0.25s, transform 0.2s, box-shadow 0.2s;
}

.btn-submit:hover {
  background: #1ebc5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(37,211,102,0.4);
}

/* ── FOOTER ── */
footer {
  background: var(--negro);
  border-top: 1px solid rgba(201,168,76,0.12);
  padding: 60px 6vw 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 3px;
  color: var(--dorado);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--gris);
  letter-spacing: 1px;
}

.footer-wa {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--whatsapp);
  color: #fff;
  text-decoration: none;
  padding: 12px 24px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 1px;
  transition: background 0.25s;
}
.footer-wa:hover { background: #1ebc5a; }

/* ── WHATSAPP FLOTANTE ── */
.wa-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 200;
  background: var(--whatsapp);
  color: #fff;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37,211,102,0.5);
  animation: pulse 2.5s infinite;
  transition: transform 0.2s;
}

.wa-float:hover { transform: scale(1.1); }

/* ── DIVIDER ── */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(201,168,76,0.3), transparent);
  margin: 0 6vw;
}

/* ── TOAST ── */
#toast {
  position: fixed;
  bottom: 110px;
  right: 32px;
  background: var(--whatsapp);
  color: #fff;
  padding: 14px 24px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 300;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s, transform 0.4s;
  pointer-events: none;
  max-width: 260px;
  line-height: 1.4;
}
#toast.show { opacity: 1; transform: translateY(0); }

/* ── ANIMACIONES ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.5); }
  50%       { box-shadow: 0 4px 35px rgba(37,211,102,0.8); }
}

/* ── SVG portón decorativo en hero ── */
.hero-gate-svg {
  position: absolute;
  right: 6vw;
  top: 50%;
  transform: translateY(-50%);
  width: min(480px, 42vw);
  opacity: 0;
  animation: fadeUp 1s 1s forwards;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item:first-child { grid-column: span 2; }
  .proceso-grid { grid-template-columns: 1fr; gap: 48px; }
  .cotizar-container { grid-template-columns: 1fr; gap: 48px; }
  .hero-gate-svg { display: none; }
  .stat-item { padding: 30px 30px; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .nav-links { display: none; }
  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item:first-child { grid-column: span 1; aspect-ratio: 4/3; }
  .stats-bar { flex-wrap: wrap; }
  .stat-item { min-width: 50%; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.05); }
  footer { flex-direction: column; text-align: center; }
   #inicio { min-height: auto; padding: 100px 6vw 50px; } 
   .hero-content{ max-width: 100%; }
   .hero-desc{ font-size:1rem; line-height: 1.7;  }
   .stat-item { min-width: 100%;  }
   section { padding: 60px 6vw;  }
   .btn { width:100%; justify-content:center;  }
   .hero-logo-img { width:70px; height:auto; margin-right:10px; }
}