/* ==========================================================================
   RETECVIA | Reflejo y Tecnologías en Señalamiento Vial
   Design System & Landing Page Stylesheet
   Distribuidor Autorizado 3M • Soluciones Viales de Alta Gama
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Brand Palette */
  --color-red-primary: #E5232A;
  --color-red-dark: #C9181E;
  --color-red-glow: rgba(229, 35, 42, 0.35);
  --color-red-soft: #FFF1F2;

  --color-yellow-safety: #FFC107;
  --color-yellow-dark: #D97706;
  --color-yellow-glow: rgba(255, 193, 7, 0.4);
  --color-yellow-soft: #FEF3C7;

  /* Surfaces & Neutrals */
  --color-bg-dark: #0B0F19;
  --color-bg-dark-surface: #111827;
  --color-bg-dark-card: #182234;
  --color-bg-light: #F8FAFC;
  --color-bg-white: #FFFFFF;
  --color-border-light: #E2E8F0;
  --color-border-dark: #2A364F;

  /* Typography Colors */
  --text-dark-primary: #0F172A;
  --text-dark-secondary: #475569;
  --text-dark-muted: #64748B;
  --text-light-primary: #F8FAFC;
  --text-light-secondary: #CBD5E1;
  --text-light-muted: #94A3B8;

  /* Typography Stack */
  --font-heading: 'Montserrat', 'Gill Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Outfit', 'Montserrat', 'Gill Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 25px var(--color-red-glow);

  /* Container */
  --max-w: 1280px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-dark-primary);
  background-color: var(--color-bg-white);
  line-height: 1.6;
  overflow-x: hidden;
  padding-top: 80px; /* Offset for fixed header */
}

img, svg, picture {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button, input, select, textarea {
  font: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background-color: rgba(11, 15, 25, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.site-header.scrolled {
  background-color: rgba(11, 15, 25, 0.98);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  border-bottom-color: rgba(229, 35, 42, 0.3);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  margin-right: 28px;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-divider {
  width: 1px;
  height: 24px;
  background-color: rgba(255, 255, 255, 0.2);
}

.logo-3m-img {
  height: 24px;
  width: auto;
  object-fit: contain;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 16px;
}

@media (min-width: 1200px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light-secondary);
  transition: var(--transition);
  position: relative;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.nav-link:hover, .nav-link:focus-visible {
  color: var(--color-yellow-safety);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn-header-tel {
  display: none;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-light-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: var(--transition);
  white-space: nowrap;
}

@media (min-width: 860px) {
  .btn-header-tel {
    display: inline-flex;
  }
}

.btn-header-tel:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-yellow-safety);
  color: var(--color-yellow-safety);
}

.btn-cta-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-red-primary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 10px var(--color-red-glow);
  transition: var(--transition);
  border: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-cta-nav:hover, .btn-cta-nav:focus-visible {
  background: var(--color-red-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(229, 35, 42, 0.5);
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  color: #FFF;
  cursor: pointer;
}

@media (min-width: 1160px) {
  .mobile-toggle {
    display: none;
  }
}

.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  background-color: var(--color-bg-dark);
  border-bottom: 2px solid var(--color-red-primary);
  padding: 24px 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.mobile-nav-drawer.active {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav-drawer a {
  color: var(--text-light-primary);
  font-weight: 600;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* ==========================================================================
   1. HERO SECTION (Primera Pantalla)
   ========================================================================== */
.hero-section {
  position: relative;
  background-color: var(--color-bg-dark);
  color: var(--text-light-primary);
  padding: 40px 0 60px 0;
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Atmospheric highway backdrop */
.hero-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(135deg, rgba(11, 15, 25, 0.94) 0%, rgba(11, 15, 25, 0.82) 50%, rgba(11, 15, 25, 0.92) 100%),
                    url('../assets/hero-highway-signs.jpg');
  background-size: cover;
  background-position: center right;
  z-index: 1;
  pointer-events: none;
}

/* Geometric warning stripe highlight */
.hero-backdrop::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: repeating-linear-gradient(
    -45deg,
    var(--color-yellow-safety),
    var(--color-yellow-safety) 20px,
    #111827 20px,
    #111827 40px
  );
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.95fr;
    gap: 48px;
  }
}

/* Left Hero Column */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(229, 35, 42, 0.15);
  border: 1px solid var(--color-red-primary);
  color: #FFA5A8;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-red-primary);
  box-shadow: 0 0 10px var(--color-red-primary);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.9); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.8; }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3.1rem);
  font-weight: 900;
  line-height: 1.15;
  color: #FFFFFF;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}

.hero-title-accent {
  color: var(--color-yellow-safety);
  position: relative;
  display: inline-block;
}

.hero-description {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  color: var(--text-light-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 600px;
}

/* 3 Benefit Bullets */
.hero-benefits {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.hero-benefit-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--text-light-primary);
}

.benefit-icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(255, 193, 7, 0.15);
  border: 1px solid rgba(255, 193, 7, 0.4);
  color: var(--color-yellow-safety);
  flex-shrink: 0;
}

/* Hero Trust Strip */
.hero-trust-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.trust-badge-item img {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.trust-badge-text {
  font-size: 0.8rem;
  line-height: 1.3;
  color: var(--text-light-muted);
}

.trust-badge-text strong {
  color: var(--text-light-primary);
  display: block;
}

/* Right Hero Column: Lead Capture Form Card */
.hero-form-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  color: var(--text-dark-primary);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.2);
  border-top: 5px solid var(--color-red-primary);
  position: relative;
  transition: box-shadow 0.3s ease;
}

@media (min-width: 576px) {
  .hero-form-card {
    padding: 32px 30px;
  }
}

.hero-form-card.form-pulsing {
  box-shadow: 0 0 0 4px var(--color-yellow-safety), 0 20px 40px rgba(0, 0, 0, 0.45);
}

.form-header {
  margin-bottom: 20px;
}

.form-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-red-primary);
  line-height: 1.25;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-subtitle {
  font-size: 0.88rem;
  color: var(--text-dark-secondary);
  line-height: 1.45;
}

/* Form Grid */
.lead-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 480px) {
  .form-row.two-cols {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
  position: relative;
}

.form-label {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-dark-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.form-label .req {
  color: var(--color-red-primary);
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  background-color: #F8FAFC;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--text-dark-primary);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  background-color: #FFFFFF;
  border-color: var(--color-red-primary);
  box-shadow: 0 0 0 3px rgba(229, 35, 42, 0.12);
}

select.form-control {
  cursor: pointer;
}

textarea.form-control {
  min-height: 64px;
  resize: vertical;
}

/* intl-tel-input full width fix */
.iti {
  width: 100%;
}

.iti__country-list {
  z-index: 100;
  color: #1E293B;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-sm);
}

/* Form Checkbox */
.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.76rem;
  color: var(--text-dark-secondary);
  line-height: 1.4;
  cursor: pointer;
  margin-top: 4px;
}

.form-checkbox-label input[type="checkbox"] {
  margin-top: 2px;
  accent-color: var(--color-red-primary);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  cursor: pointer;
}

/* Form Submit Button */
.btn-submit-hero {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--color-red-primary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--color-red-glow);
  transition: var(--transition);
  margin-top: 6px;
}

.btn-submit-hero:hover:not(:disabled) {
  background: var(--color-red-dark);
  box-shadow: 0 6px 20px rgba(229, 35, 42, 0.6);
  transform: translateY(-2px);
}

.btn-submit-hero:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #FFFFFF;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-feedback {
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  display: none;
}

.form-feedback.error {
  display: block;
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

.form-feedback.success {
  display: block;
  background: #D1FAE5;
  color: #065F46;
  border: 1px solid #6EE7B7;
}

/* ==========================================================================
   2. FRANJA DE VALOR | DIFERENCIALES
   ========================================================================== */
.value-strip-section {
  background: #0F172A;
  color: #FFFFFF;
  padding: 40px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.value-strip-header {
  text-align: center;
  margin-bottom: 32px;
}

.value-strip-title {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: #FFFFFF;
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .value-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.value-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
  position: relative;
}

.value-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 2px;
  background: var(--color-yellow-safety);
  opacity: 0;
  transition: var(--transition);
}

.value-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 193, 7, 0.3);
  transform: translateY(-4px);
}

.value-card:hover::before {
  opacity: 1;
}

.value-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 193, 7, 0.12);
  border: 1px solid rgba(255, 193, 7, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-yellow-safety);
}

.value-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
}

.value-card-desc {
  font-size: 0.92rem;
  color: var(--text-light-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   3. SERVICIOS Y SOLUCIONES (6 Tarjetas con Fotos Reales)
   ========================================================================== */
.services-section {
  padding: 80px 0;
  background-color: var(--color-bg-light);
}

.section-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 50px auto;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-red-primary);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 900;
  color: var(--text-dark-primary);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-dark-secondary);
  line-height: 1.6;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 640px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(229, 35, 42, 0.4);
}

.service-card-media {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: #0B0F19;
}

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

.service-card:hover .service-card-img {
  transform: scale(1.06);
}

.service-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(4px);
  color: var(--color-yellow-safety);
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 193, 7, 0.4);
}

.service-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-dark-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.service-card-desc {
  font-size: 0.92rem;
  color: var(--text-dark-secondary);
  line-height: 1.55;
  margin-bottom: 20px;
  flex-grow: 1;
}

.btn-service-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: #F1F5F9;
  color: var(--text-dark-primary);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 11px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
  transition: var(--transition);
  cursor: pointer;
  width: 100%;
}

.service-card:hover .btn-service-cta {
  background: var(--color-red-primary);
  color: #FFFFFF;
  border-color: var(--color-red-primary);
  box-shadow: 0 4px 12px var(--color-red-glow);
}

/* ==========================================================================
   4. MATERIALES PARA PROFESIONALES DEL SECTOR
   ========================================================================== */
.pro-materials-section {
  padding: 80px 0;
  background-color: var(--color-bg-white);
  border-top: 1px solid var(--color-border-light);
}

.pro-materials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

@media (min-width: 992px) {
  .pro-materials-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.materials-visual-mosaic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mosaic-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.mosaic-item.tall {
  grid-column: span 2;
  height: 240px;
}

.mosaic-item.square {
  height: 180px;
}

.mosaic-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mosaic-label {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(4px);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-yellow-safety);
}

.materials-content-block h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  font-weight: 900;
  color: var(--text-dark-primary);
  line-height: 1.25;
  margin-bottom: 20px;
}

.materials-content-block p {
  font-size: 1rem;
  color: var(--text-dark-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
}

.materials-specs-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 24px 0 32px 0;
}

@media (min-width: 576px) {
  .materials-specs-list {
    grid-template-columns: 1fr 1fr;
  }
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark-primary);
}

.spec-icon {
  color: var(--color-red-primary);
  flex-shrink: 0;
}

.btn-primary-action {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-red-primary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 15px var(--color-red-glow);
  transition: var(--transition);
}

.btn-primary-action:hover {
  background: var(--color-red-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(229, 35, 42, 0.5);
}

/* ==========================================================================
   5. CÓMO SOLICITAR TU COTIZACIÓN (3 Pasos)
   ========================================================================== */
.how-to-quote-section {
  padding: 80px 0;
  background: #0B0F19;
  color: #FFFFFF;
  position: relative;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 48px;
  position: relative;
}

@media (min-width: 768px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  background: #111827;
  border: 1px solid #1E293B;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.step-card:hover {
  border-color: var(--color-yellow-safety);
  transform: translateY(-4px);
}

.step-number-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--color-red-primary);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px var(--color-red-glow);
}

.step-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--text-light-secondary);
  line-height: 1.55;
}

.steps-cta-center {
  text-align: center;
}

/* ==========================================================================
   6. BLOQUE PARA COMPRAS POR VOLUMEN Y PROYECTOS EMPRESARIALES
   ========================================================================== */
.wholesale-banner-section {
  padding: 70px 0;
  background: linear-gradient(135deg, #182234 0%, #0F172A 100%);
  color: #FFFFFF;
  border-top: 3px solid var(--color-yellow-safety);
  border-bottom: 3px solid var(--color-yellow-safety);
  position: relative;
  overflow: hidden;
}

.wholesale-banner-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background-image: url('../assets/banner-compras.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  mix-blend-mode: luminosity;
  pointer-events: none;
}

.wholesale-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
  position: relative;
  z-index: 2;
}

@media (min-width: 992px) {
  .wholesale-grid {
    grid-template-columns: 1.4fr 0.8fr;
  }
}

.wholesale-title {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 2.8vw, 2.2rem);
  font-weight: 900;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.25;
}

.wholesale-desc {
  font-size: 1.02rem;
  color: var(--text-light-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.wholesale-cta-box {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}

@media (min-width: 992px) {
  .wholesale-cta-box {
    align-items: flex-end;
  }
}

.btn-wholesale-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--color-yellow-safety);
  color: #0B0F19;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 15px var(--color-yellow-glow);
  transition: var(--transition);
}

.btn-wholesale-cta:hover {
  background: #FFD54F;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 193, 7, 0.6);
}

/* ==========================================================================
   7. PREGUNTAS FRECUENTES (Acordeón)
   ========================================================================== */
.faq-section {
  padding: 80px 0;
  background-color: var(--color-bg-white);
}

.faq-accordion {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #FFFFFF;
  transition: var(--transition);
}

.faq-item.active {
  border-color: var(--color-red-primary);
  box-shadow: var(--shadow-md);
}

.faq-question-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: transparent;
  border: none;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark-primary);
  cursor: pointer;
  transition: var(--transition);
  gap: 16px;
}

.faq-item.active .faq-question-btn {
  color: var(--color-red-primary);
}

.faq-chevron {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-red-primary);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 24px 22px 24px;
  font-size: 0.95rem;
  color: var(--text-dark-secondary);
  line-height: 1.65;
  border-top: 1px solid transparent;
}

.faq-item.active .faq-answer {
  display: block;
  border-top-color: #F1F5F9;
}

/* ==========================================================================
   8. CTA FINAL | CIERRE DE CONVERSIÓN
   ========================================================================== */
.final-cta-section {
  position: relative;
  background-color: #0B0F19;
  color: #FFFFFF;
  padding: 90px 0;
  text-align: center;
  overflow: hidden;
}

.final-cta-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(rgba(11, 15, 25, 0.9), rgba(11, 15, 25, 0.9)),
                    url('../assets/zona-escolar.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.4;
  z-index: 1;
}

.final-cta-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
}

.final-cta-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.7rem);
  font-weight: 900;
  color: #FFFFFF;
  line-height: 1.2;
  margin-bottom: 18px;
}

.final-cta-desc {
  font-size: 1.15rem;
  color: var(--text-light-secondary);
  line-height: 1.6;
  margin-bottom: 36px;
}

.final-cta-buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #070A11;
  color: #94A3B8;
  padding: 60px 0 30px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.6fr 1fr 1fr;
  }
}

.footer-brand h4 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.footer-brand p {
  line-height: 1.6;
  margin-bottom: 20px;
  color: var(--text-light-secondary);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 12px;
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--color-red-primary);
  transform: translateY(-2px);
}

.footer-col h5 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links-list a {
  color: #94A3B8;
  transition: var(--transition);
}

.footer-links-list a:hover {
  color: var(--color-yellow-safety);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  text-align: center;
  font-size: 0.8rem;
  color: #64748B;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* ==========================================================================
   WHATSAPP FLOATING BUTTON
   ========================================================================== */
.whatsapp-float-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: #25D366;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.45);
  z-index: 990;
  transition: var(--transition);
  border: none;
}

.whatsapp-float-btn:hover {
  background-color: #20BA5A;
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.6);
}

.whatsapp-float-btn svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.whatsapp-ping {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 14px;
  height: 14px;
  background-color: var(--color-red-primary);
  border: 2px solid #FFFFFF;
  border-radius: 50%;
}

/* ==========================================================================
   THANK YOU PAGE SPECIFIC STYLES
   ========================================================================== */
.thankyou-section {
  min-height: calc(100vh - 160px);
  display: flex;
  align-items: center;
  padding: 60px 0;
  background: var(--color-bg-light);
}

.thankyou-card {
  max-width: 780px;
  margin: 0 auto;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  border-top: 6px solid var(--color-red-primary);
  padding: 40px 24px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

@media (min-width: 640px) {
  .thankyou-card {
    padding: 50px 48px;
  }
}

.thankyou-check-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  color: #10B981;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px auto;
  border: 2px solid #10B981;
}

.thankyou-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 900;
  color: var(--text-dark-primary);
  margin-bottom: 8px;
}

.thankyou-subtitle {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-red-primary);
  margin-bottom: 16px;
}

.thankyou-desc {
  font-size: 1rem;
  color: var(--text-dark-secondary);
  line-height: 1.6;
  margin-bottom: 36px;
}

.thankyou-steps-box {
  background: #F8FAFC;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: left;
  margin-bottom: 32px;
}

.thankyou-steps-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-dark-primary);
  margin-bottom: 16px;
}

.thankyou-steps-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.thankyou-step-item {
  display: flex;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-dark-secondary);
  line-height: 1.5;
}

.thankyou-step-badge {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-red-primary);
  color: #FFF;
  font-weight: 800;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.thankyou-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-bottom: 32px;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--color-red-primary);
  outline-offset: 2px;
}