/* ========================================
   ALUM — Carpintería de Aluminio
   Aesthetic: Industrial Refined — deep navy, brushed brass accent
   Fonts: Space Grotesk (display) + Inter (body)
   Applying: frontend-design, page-cro, copywriting skills
   ======================================== */

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

:root {
  --navy-900: #070e1a;
  --navy-800: #0a1628;
  --navy-700: #162544;
  --navy-600: #1e3055;
  --brass: #c9a84c;
  --brass-light: #dbc06e;
  --brass-dark: #a88a35;
  --white: #ffffff;
  --gray-50: #f7f8fa;
  --gray-100: #eef0f4;
  --gray-200: #dde1e8;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --text: #1a1f2e;
  --text-light: #5a6270;

  --radius: 6px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  --shadow-sm: 0 1px 3px rgba(10,22,40,0.06);
  --shadow-md: 0 4px 16px rgba(10,22,40,0.08);
  --shadow-lg: 0 8px 32px rgba(10,22,40,0.10);
  --shadow-brass: 0 4px 24px rgba(201,168,76,0.3);

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 0.3s;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  line-height: 1.65;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  color: var(--navy-800);
}

h2 em, h1 em { font-style: normal; color: var(--brass); }

/* ===== SECTION HEADERS ===== */
.section-tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--brass);
  margin-bottom: 12px;
}

.section-header { margin-bottom: 56px; }
.section-header h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); margin-bottom: 12px; letter-spacing: -0.5px; }
.section-desc { color: var(--text-light); font-size: 1rem; max-width: 520px; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--dur) var(--ease);
}

.btn-primary {
  background: var(--brass);
  color: var(--navy-900);
}
.btn-primary:hover {
  background: var(--brass-light);
  box-shadow: var(--shadow-brass);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.5);
}

.btn-nav {
  background: var(--navy-800);
  color: var(--white);
  padding: 10px 22px;
  font-size: 0.82rem;
}
.btn-nav:hover { background: var(--navy-700); }

.btn-sm {
  padding: 8px 18px;
  font-size: 0.8rem;
  background: var(--brass);
  color: var(--navy-900);
  border-radius: var(--radius);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
}
.btn-sm:hover { background: var(--brass-light); }

.btn-whatsapp {
  background: #25d366;
  color: var(--white);
}
.btn-whatsapp:hover { background: #1fb855; transform: translateY(-1px); }

.btn-full { width: 100%; }

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  transition: box-shadow var(--dur) var(--ease);
}
.header.scrolled { box-shadow: 0 1px 0 var(--gray-200), var(--shadow-sm); }

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo { display: flex; align-items: center; gap: 10px; }

.logo-img { height: 200px; width: auto; }
.logo-img-footer { height: 60px; filter: brightness(0) invert(1); }

.logo-mark {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 22px;
  color: var(--white);
  width: 40px; height: 40px;
  background: var(--navy-800);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-text { display: flex; align-items: baseline; gap: 6px; }
.logo-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy-800);
}
.logo-divider { color: var(--gray-400); font-weight: 300; }
.logo-sub {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav { display: flex; align-items: center; gap: 28px; }

.nav-link {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--dur);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--brass);
  transition: width var(--dur);
}
.nav-link:hover { color: var(--navy-800); }
.nav-link:hover::after { width: 100%; }

.menu-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  width: 32px; height: 32px; position: relative;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--navy-800);
  position: absolute; left: 5px;
  transition: all var(--dur) var(--ease);
}
.menu-toggle span:nth-child(1) { top: 9px; }
.menu-toggle span:nth-child(2) { top: 15px; }
.menu-toggle span:nth-child(3) { top: 21px; }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy-800);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(135deg, rgba(7,14,26,0.92) 0%, rgba(10,22,40,0.6) 100%),
    url('../img/hero-bg.png') 60% center/cover no-repeat;
}

.hero-overlay {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 70% 50%, rgba(201,168,76,0.06) 0%, transparent 60%);
}

.hero .container {
  position: relative; z-index: 2;
  padding-top: 140px; padding-bottom: 100px;
}

.hero-content { max-width: 620px; }

.hero-badge {
  display: inline-block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--brass);
  border: 1px solid rgba(201,168,76,0.3);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  font-weight: 700;
  color: var(--white);
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.6);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }

.hero-trust { display: flex; gap: 28px; flex-wrap: wrap; }
.trust-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.82rem; color: rgba(255,255,255,0.55);
}
.trust-item svg { width: 18px; height: 18px; color: var(--brass); flex-shrink: 0; }

/* ===== SERVICIOS BAR ===== */
.servicios-bar {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  padding: 24px 0;
}

.servicios-bar-grid {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.serv-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 50px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--navy-800);
  transition: all var(--dur);
}
.serv-chip:hover {
  border-color: var(--brass);
  color: var(--brass-dark);
  box-shadow: var(--shadow-sm);
}
.serv-chip svg { width: 18px; height: 18px; stroke: var(--brass); }

/* ===== PRODUCTOS ===== */
.productos {
  padding: 40px 0 96px;
  background: var(--white);
  scroll-margin-top: 20px;
}
.productos .section-header { margin-bottom: 32px; }

/* PRODUCTO DESTACADO */
.producto-destacado {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 48px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 32px;
}

.producto-main-img {
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.producto-main-img img {
  max-height: 340px;
  object-fit: contain;
  width: 100%;
}

.producto-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.producto-thumbs .thumb {
  width: 72px; height: 72px;
  object-fit: contain;
  border-radius: var(--radius);
  border: 2px solid var(--gray-200);
  cursor: pointer;
  padding: 4px;
  background: var(--gray-50);
  transition: border-color var(--dur) var(--ease);
}
.producto-thumbs .thumb:hover,
.producto-thumbs .thumb.active {
  border-color: var(--brass);
}

.producto-badge {
  display: inline-block;
  background: #dcfce7;
  color: #166534;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.producto-destacado-info h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.producto-linea {
  font-size: 0.88rem;
  color: var(--text-light);
  margin-bottom: 20px;
}

.producto-specs-list {
  list-style: none;
  margin-bottom: 24px;
}
.producto-specs-list li {
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
  font-size: 0.9rem;
  color: var(--text);
}
.producto-specs-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 14px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brass);
}

.producto-medidas { margin-bottom: 28px; }
.medidas-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}
.medidas-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.medida-chip {
  padding: 8px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy-800);
  background: var(--gray-50);
}

/* ENCARGUE BANNER */
.encargue-banner {
  background: var(--navy-800);
  border-radius: var(--radius-xl);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 24px;
}
.encargue-text h3 {
  color: var(--white);
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.encargue-text p {
  color: rgba(255,255,255,0.6);
  font-size: 0.92rem;
  max-width: 480px;
}

/* PAGO BANNER */
.pago-banner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
}
.pago-icon { width: 32px; height: 32px; stroke: var(--brass); flex-shrink: 0; }
.pago-text { display: flex; flex-direction: column; }
.pago-text strong { font-family: 'Space Grotesk', sans-serif; font-size: 0.9rem; color: var(--navy-800); }
.pago-text span { font-size: 0.82rem; color: var(--text-light); }

/* ===== GALERÍA ===== */
.galeria {
  padding: 96px 0;
  background: var(--gray-50);
  scroll-margin-top: 90px;
}

/* Filtros */
.galeria-filtros {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.filtro-btn {
  padding: 10px 20px;
  border: 1.5px solid var(--gray-200);
  border-radius: 100px;
  background: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  transition: all var(--dur) var(--ease);
}
.filtro-btn:hover {
  border-color: var(--brass);
  color: var(--brass);
  background: rgba(201,168,76,0.08);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.filtro-btn.active {
  background: var(--navy-800);
  border-color: var(--navy-800);
  color: var(--white);
}

/* Grilla de galería */
.galeria-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.galeria-item {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}
.galeria-item.hidden { display: none; }

.galeria-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: var(--gray-100);
  transition: transform 0.4s var(--ease);
}
.galeria-item:hover img { transform: scale(1.12); }

.galeria-caption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 8px 10px;
  background: linear-gradient(transparent, rgba(7,14,26,0.7));
  color: var(--white);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-align: center;
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}
.galeria-item:hover .galeria-caption { opacity: 1; }

.galeria-note {
  text-align: center;
  margin-top: 32px;
  font-size: 0.88rem;
  color: var(--text-light);
}
.galeria-note a { color: var(--brass); font-weight: 600; }
.galeria-note a:hover { text-decoration: underline; }

/* ===== PROCESO ===== */
.proceso {
  padding: 96px 0;
  background: var(--white);
}

.proceso-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.proceso-step {
  position: relative;
  padding: 32px 24px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--dur);
}
.proceso-step:hover {
  border-color: var(--brass);
  box-shadow: var(--shadow-md);
}

.paso-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--brass);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 16px;
}

.proceso-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}
.proceso-step p {
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ===== NOSOTROS ===== */
.nosotros {
  padding: 96px 0;
  background: var(--gray-50);
  scroll-margin-top: 90px;
}

.nosotros-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.nosotros-img {
  position: relative;
}
.nosotros-img img {
  border-radius: var(--radius-xl);
  width: 100%;
  height: auto;
  max-height: 640px;
  object-fit: contain;
  object-position: center top;
  background: var(--gray-100);
}

.nosotros-accent-card {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--navy-800);
  color: var(--white);
  padding: 20px 28px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.accent-number {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--brass);
  display: block;
  line-height: 1;
}
.accent-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
}

.nosotros-text h2 { margin-bottom: 20px; }
.nosotros-text p {
  color: var(--text-light);
  font-size: 0.95rem;
  margin-bottom: 12px;
  line-height: 1.7;
}

.nosotros-diferencial {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 28px;
}
.dif-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--navy-800);
}
.dif-item svg { width: 18px; height: 18px; color: var(--brass); flex-shrink: 0; }

/* ===== FAQ ===== */
.faq {
  padding: 96px 0;
  background: var(--white);
}

.faq-list { max-width: 700px; margin: 0 auto; }

.faq-item {
  border-bottom: 1px solid var(--gray-200);
}
.faq-item summary {
  padding: 20px 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy-800);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--brass);
  font-weight: 300;
  transition: transform var(--dur);
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-item summary::-webkit-details-marker { display: none; }

.faq-item p {
  padding: 0 0 12px;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.7;
}

.faq-lista {
  list-style: none;
  padding: 0 0 12px;
  margin: 0;
  display: grid;
  gap: 8px;
}
.faq-lista li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--text-light);
  line-height: 1.6;
}
.faq-lista li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brass);
}
.faq-lista strong { color: var(--text); }

/* ===== CONTACTO ===== */
.contacto {
  padding: 96px 0;
  background: var(--navy-800);
  scroll-margin-top: 90px;
  color: var(--white);
}

.contacto .section-tag { color: var(--brass); }
.contacto .section-header h2 { color: var(--white); }
.contacto .section-desc { color: rgba(255,255,255,0.5); }

.contacto-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
}

.contacto-form {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: 36px;
}

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

.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  background: rgba(255,255,255,0.04);
  color: var(--white);
  transition: border-color var(--dur);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.25); }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { outline: none; border-color: var(--brass); }
.form-group select option { background: var(--navy-800); }
.form-group textarea { resize: vertical; min-height: 90px; }

.contacto-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.info-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.info-card h3 { font-size: 1rem; color: var(--white); margin-bottom: 16px; }

.info-row {
  display: flex; align-items: center;
  gap: 12px; margin-bottom: 14px;
  font-size: 0.88rem; color: rgba(255,255,255,0.6);
}
.info-row:last-child { margin-bottom: 0; }
.info-row svg { width: 18px; height: 18px; color: var(--brass); flex-shrink: 0; }
.info-row a { color: rgba(255,255,255,0.8); transition: color var(--dur); }
.info-row a:hover { color: var(--brass); }

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  transition: color var(--dur);
}
.social-link:hover { color: var(--brass); }

/* ===== FOOTER ===== */
.footer {
  background: var(--navy-900);
  color: var(--white);
  padding: 48px 0 24px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding-bottom: 32px;
}

.footer .logo-name { color: var(--white); }
.footer .logo-sub { color: rgba(255,255,255,0.35); }
.footer .logo-divider { color: rgba(255,255,255,0.2); }

.footer-tagline {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
  margin-top: 12px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255,255,255,0.45);
  transition: color var(--dur);
}
.footer-nav a:hover { color: var(--white); }

.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  transition: color var(--dur);
}
.footer-contact a:hover { color: var(--brass); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.2);
  text-align: center;
}

/* ===== WHATSAPP FLOAT ===== */
.wa-float {
  position: fixed;
  bottom: 28px; right: 28px;
  z-index: 90;
  width: 58px; height: 58px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 4px 20px rgba(37,211,102,0.35);
  transition: transform var(--dur), box-shadow var(--dur);
}
.wa-float:hover { transform: scale(1.1); box-shadow: 0 6px 28px rgba(37,211,102,0.45); }
.wa-float svg { width: 28px; height: 28px; }

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .producto-destacado { gap: 32px; padding: 24px; }
  .proceso-grid { grid-template-columns: repeat(2, 1fr); }
  .galeria-grid { grid-template-columns: repeat(3, 1fr); }
  .nosotros-grid { gap: 40px; }
  .encargue-banner { flex-direction: column; text-align: center; padding: 36px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0; bottom: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 0;
    z-index: 99;
  }
  .nav.active { display: flex; }
  .nav-link {
    padding: 14px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--gray-100);
    width: 100%;
  }
  .nav-link::after { display: none; }
  .nav .btn { margin-top: 16px; width: 100%; justify-content: center; }
  .menu-toggle { display: block; }

  .hero { min-height: auto; padding-bottom: 0; }
  .hero-bg { background-position: 78% center; background-size: 146%; }
  .hero .container { padding-top: 100px; padding-bottom: 60px; }
  .hero h1 { font-size: 1.8rem; }
  .hero-desc { font-size: 0.88rem; }
  .hero-badge { font-size: 0.65rem; }
  .hero-btns { flex-direction: column; gap: 10px; }
  .hero-btns .btn { width: 100%; justify-content: center; padding: 14px 24px; }
  .hero-btns .btn-primary {
    background: transparent;
    border: 2px solid var(--brass);
    color: var(--brass);
  }
  .hero-trust { flex-direction: column; gap: 10px; margin-top: 80px; }
  .hero-trust .trust-item { font-size: 0.8rem; }

  .logo-img { height: 120px; }

  .servicios-bar-grid { justify-content: flex-start; }

  .producto-destacado { grid-template-columns: 1fr; padding: 20px; }
  .galeria-grid { grid-template-columns: repeat(2, 1fr); }
  .proceso-grid { grid-template-columns: 1fr; }
  .nosotros-grid { grid-template-columns: 1fr; }
  .nosotros-accent-card { position: relative; bottom: auto; right: auto; margin-top: 16px; display: inline-block; }
  .nosotros-diferencial { grid-template-columns: 1fr; }
  .contacto-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-tagline { margin: 12px auto 0; }
  .footer-nav { align-items: center; }
  .footer-contact { align-items: center; }

  .encargue-banner { padding: 28px; }
}