/* ==========================================================================
   OFERTA AR CONDICIONADO - DESIGN SYSTEM & STYLES (PREMIUM CORPORATE)
   Focus: Corporate Navy & Titanium Gold, Mega Menu, Ultra-Responsive & Fast
   ========================================================================== */

:root {
  /* Color Palette - Premium Executive Engineering Tone */
  --color-primary: #0a2540;        /* Executive Deep Navy */
  --color-primary-dark: #051424;   /* Dark Obsidian */
  --color-primary-light: #0a2540;  /* Dark Contrast Tone for Headers on white */
  --color-accent-gold: #b45309;    /* Dark Gold for high contrast */
  --color-accent-gold-dark: #92400e;
  --color-secondary: #0f172a;      /* Slate Charcoal */
  --color-accent-wa: #15803d;      /* High contrast WA Green */
  --color-accent-wa-hover: #166534;
  --color-surface: #ffffff;
  --color-background: #f4f6f9;    /* Clean Premium Grey */
  --color-card-bg: #ffffff;
  --color-border: #cbd5e1;
  --color-border-hover: #94a3b8;
  --color-text: #1e293b;
  --color-text-muted: #475569;
  --color-text-white: #ffffff;
  
  /* Typography */
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  
  /* Layout & Spacing */
  --max-width: 1280px;
  --header-height: 76px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  
  /* Shadows & Transitions */
  --shadow-sm: 0 1px 3px rgba(10, 37, 64, 0.06);
  --shadow-md: 0 4px 12px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 12px 24px -4px rgba(10, 37, 64, 0.12);
  --outline-focus: 3px solid #0a2540;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-background);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

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

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

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

ul, ol {
  list-style: none;
}

:focus-visible {
  outline: var(--outline-focus);
  outline-offset: 2px;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(1.9rem, 4vw, 2.85rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.text-gold { color: var(--color-accent-gold); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-whatsapp {
  background-color: var(--color-accent-wa);
  color: var(--color-text-white);
  box-shadow: var(--shadow-sm);
}

.btn-whatsapp:hover {
  background-color: var(--color-accent-wa-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.btn-block { width: 100%; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }

/* Header & Mega Menu System */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.logo span { color: var(--color-accent-gold); }

/* Navigation Links */
.nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 1.5rem 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-accent-gold);
}

.nav-link svg {
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg {
  transform: rotate(180deg);
}

/* Mega Menu Dropdown Box Refined */
.mega-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  transform: translateY(12px);
  width: 780px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent-gold);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: 0 16px 36px rgba(10, 37, 64, 0.12);
  padding: 1.75rem 2rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  z-index: 1100;
}

.nav-item:hover .mega-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.mega-col-title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.mega-links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.mega-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-secondary);
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mega-links a:hover {
  background-color: #f1f5f9;
  color: var(--color-primary);
  transform: translateX(3px);
  font-weight: 600;
}


/* Mobile Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-primary);
}

/* Mobile Navigation Styles */
@media (max-width: 1024px) {
  .menu-toggle { display: block; }
  .header-actions .btn-header { display: none; }
  
  .nav-list {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    padding: 1.5rem;
    gap: 0;
    overflow-y: auto;
    display: none;
    box-shadow: var(--shadow-lg);
  }

  .nav-list.is-active { display: flex; }

  .nav-link {
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
    justify-content: space-between;
  }

  .mega-dropdown {
    position: static;
    transform: none !important;
    width: 100%;
    box-shadow: none;
    border: none;
    padding: 0.5rem 0 1rem 1rem;
    display: none;
    grid-template-columns: 1fr;
    gap: 1rem;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-item.mobile-open .mega-dropdown {
    display: grid;
  }
}

/* Hero Section */
.hero {
  padding: 3.5rem 0 4.5rem;
  background: linear-gradient(180deg, #0a2540 0%, #071728 100%);
  color: var(--color-text-white);
  border-bottom: 1px solid var(--color-border);
}

.hero h1, .hero h2, .hero h3 { color: var(--color-text-white); }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 992px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background-color: rgba(217, 119, 6, 0.15);
  border: 1px solid rgba(217, 119, 6, 0.4);
  color: #fbbf24;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 1.25rem;
}

.hero-title { margin-bottom: 1.25rem; }
.hero-subtitle {
  font-size: 1.125rem;
  color: #94a3b8;
  margin-bottom: 2rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

/* Consultative Card */
.hero-visual-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.hero-visual-card p { color: #cbd5e1; }

/* Sections */
.section { padding: 4.5rem 0; }
.section-header { margin-bottom: 3rem; }
.section-title { margin-bottom: 0.75rem; }
.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 720px;
}
.section-header.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* Product & Solution Cards Grid */
.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.5rem;
}

@media (min-width: 1200px) {
  .grid-cards-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-cards-4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.card:hover {
  border-color: var(--color-accent-gold);
  box-shadow: var(--shadow-md);
}

.card-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  background-color: #e2e8f0;
  color: #0f172a;
  border: 1px solid #cbd5e1;
  margin-bottom: 1rem;
}

.card-title { font-size: 1.2rem; margin-bottom: 0.75rem; }
.card-text { font-size: 0.9375rem; color: var(--color-text-muted); margin-bottom: 1.25rem; flex-grow: 1; }

.card-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding: 0.75rem;
  background-color: var(--color-background);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.spec-badge {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-weight: 500;
}

.card-footer {
  margin-top: auto;
  display: flex;
  gap: 0.75rem;
  flex-direction: column;
}

/* Consultative Lead Form */
.consultant-form-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.75rem;
  box-shadow: var(--shadow-md);
  max-width: 780px;
  margin: 0 auto;
}

.form-group { margin-bottom: 1.5rem; }
.form-label {
  display: block;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
}

.option-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.75rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.option-btn:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.option-btn.selected {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-text-white);
  font-weight: 600;
}

/* Brands Grid */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}

.brand-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  transition: all var(--transition-fast);
}

.brand-card:hover {
  border-color: var(--color-accent-gold);
  color: var(--color-accent-gold-dark);
  box-shadow: var(--shadow-sm);
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

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

.faq-button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
}

.faq-icon { transition: transform var(--transition-normal); flex-shrink: 0; }
.faq-item.is-open .faq-icon { transform: rotate(180deg); }
.faq-content { padding: 0 1.5rem 1.25rem; color: var(--color-text-muted); font-size: 0.95rem; display: none; }
.faq-item.is-open .faq-content { display: block; }

/* Breadcrumbs */
.breadcrumb-nav { padding: 1rem 0; font-size: 0.875rem; color: var(--color-text-muted); }
.breadcrumb-list { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.breadcrumb-item a:hover { color: var(--color-primary); }

/* CTA Banner Section */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, #071728 100%);
  color: var(--color-text-white);
  padding: 4rem 1.5rem;
  border-radius: var(--radius-lg);
  margin: 2rem 0;
}

.cta-banner-content { max-width: 740px; margin: 0 auto; text-align: center; }
.cta-banner h2 { color: var(--color-text-white); margin-bottom: 1rem; }
.cta-banner p { color: #94a3b8; margin-bottom: 2rem; font-size: 1.1rem; }

/* Footer Unified Standard */
.footer {
  background-color: var(--color-primary-dark);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  margin-top: auto;
  border-top: 1px solid #1e293b;
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.footer-col h3, .footer-col h4 {
  color: var(--color-text-white);
  font-size: 1.05rem;
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a:hover { color: var(--color-surface); }

.footer-disclaimer {
  padding-top: 2rem;
  border-top: 1px solid #1e293b;
  font-size: 0.825rem;
  color: #64748b;
  text-align: center;
  line-height: 1.6;
}

/* Mobile Sticky WA */
.mobile-whatsapp-fixed { display: none; }

@media (max-width: 767px) {
  .mobile-whatsapp-fixed {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
  }
  body { padding-bottom: 60px; }
}

/* Floating WhatsApp Button (Desktop & Mobile) */
.whatsapp-float-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  width: 60px;
  height: 60px;
  background-color: var(--color-accent-wa);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-normal);
  text-decoration: none;
}

.whatsapp-float-btn:hover {
  background-color: var(--color-accent-wa-hover);
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 10px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-float-btn .float-tooltip {
  position: absolute;
  right: 70px;
  background-color: var(--color-primary-dark);
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.whatsapp-float-btn:hover .float-tooltip {
  opacity: 1;
  visibility: visible;
  right: 74px;
}