/* ============================================
   VIBRANT TECHNOLOGIES - MAIN STYLESHEET
   Dark Theme Design System
   ============================================ */

/* === CSS VARIABLES === */
:root {
  /* Brand Colors */
  --primary: #47C2C7;
  --primary-dark: #007698;
  --secondary: #92C83E;
  --accent: #FAA935;
  --gold: #FFC608;
  --lime: #BAD532;
  
  /* Background Colors */
  --bg-dark: #0a0f14;
  --bg-card: #111820;
  --bg-card-hover: #161f2a;
  --bg-elevated: #0d1520;
  
  /* Border & Lines */
  --border: #1e2a3a;
  --border-light: #2a3a4a;
  
  /* Text Colors */
  --text: #e4e8ec;
  --text-muted: #a0aec0;
  --text-light: #6b7280;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--primary-dark), var(--primary));
  --gradient-text: linear-gradient(135deg, #ffffff 0%, var(--primary) 100%);
  --gradient-hero: linear-gradient(135deg, #0a0f14 0%, #0d1a24 50%, #0a1520 100%);
  
  /* Spacing */
  --section-padding: 5rem 2rem;
  --container-max: 1400px;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  
  /* Shadows */
  --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 25px 50px rgba(0, 0, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

img {
  max-width: 100%;
  height: auto;
}

ul, ol {
  list-style: none;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-muted {
  color: var(--text-muted);
}

.text-primary {
  color: var(--primary);
}

.text-secondary {
  color: var(--secondary);
}

/* === LAYOUT === */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

/* === ANIMATED LOGO === */
@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 25%, var(--secondary) 50%, var(--accent) 75%, var(--gold) 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 5s ease infinite;
  display: inline-block;
}

.logo-text:hover {
  animation-duration: 2s;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--secondary) 100%);
  background-size: 200% 200%;
  animation: gradient-shift 5s ease infinite;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.25rem;
  color: white;
}

.section {
  padding: var(--section-padding);
}

/* === TOP BANNER === */
.top-banner {
  background: var(--gradient-primary);
  color: white;
  text-align: center;
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  font-weight: 500;
}

.top-banner a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.top-banner:hover {
  background: linear-gradient(90deg, #006080, var(--primary-dark));
}

/* === HEADER === */
.header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.logo img {
  height: 40px;
}

.nav {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.nav a {
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.nav a:hover,
.nav a.active {
  background: rgba(71, 194, 199, 0.1);
  color: var(--primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--secondary);
  color: #0a0f14;
}

.btn-primary:hover {
  background: #7ab32e;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #0a0f14;
}

.btn-white {
  background: white;
  color: var(--bg-dark);
}

.btn-white:hover {
  background: var(--text);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

/* === SECTION HEADERS === */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(71, 194, 199, 0.1);
  border: 1px solid rgba(71, 194, 199, 0.2);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
}

/* === CARDS === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  background: var(--gradient-primary);
}

.card-icon svg {
  width: 28px;
  height: 28px;
  color: white;
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #fff;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* === HERO SECTIONS === */
.hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(71, 194, 199, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(146, 200, 62, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(0, 118, 152, 0.2) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(71, 194, 199, 0.15);
  border: 1px solid rgba(71, 194, 199, 0.3);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 2rem;
}

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

/* === STATS BAR === */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  padding: 3rem 2rem;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.stat {
  text-align: center;
}

.stat h3 {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.stat p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* === GRID LAYOUTS === */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

/* === BRAND LOGOS BAR === */
.brands-bar {
  padding: 4rem 2rem;
  background: var(--bg-card);
}

.brands-bar h2 {
  text-align: center;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.brand-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.brand-item {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-light);
  opacity: 0.6;
  transition: all var(--transition-normal);
}

.brand-item:hover {
  opacity: 1;
  color: var(--primary);
}

/* === CTA SECTION === */
.cta {
  padding: var(--section-padding);
  text-align: center;
}

.cta-box {
  max-width: 800px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--bg-card) 0%, #0d1a24 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 3rem;
}

.cta h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* === FOOTER === */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 2rem;
}

.footer-grid {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
  max-width: 300px;
}

.footer-col h4 {
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  max-width: var(--container-max);
  margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-light);
  font-size: 0.85rem;
}

.footer-social {
  display: flex;
  gap: 1.5rem;
}

.footer-social a {
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--primary);
}

/* === UTILITY CLASSES === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden { display: none; }

/* === MOBILE MENU === */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-dark);
  z-index: 1000;
  flex-direction: column;
  padding: 1.5rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.mobile-nav.active {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.mobile-nav-close {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 0.5rem;
  font-size: 1.5rem;
}

.mobile-nav a {
  display: block;
  padding: 1rem 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--primary);
}

.mobile-nav .btn {
  margin-top: 1.5rem;
  width: 100%;
  justify-content: center;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .nav {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .mobile-nav {
    display: flex;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 3rem 1.5rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section-header h2 {
    font-size: 2rem;
  }
  
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .stats-bar {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  
  .stat h3 {
    font-size: 2rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .stats-bar {
    grid-template-columns: 1fr;
  }
  
  .brand-logos {
    gap: 1.5rem;
  }
  
  .brand-item {
    font-size: 1.2rem;
  }
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* === ICON HELPERS === */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 24px; height: 24px; }
.icon-lg { width: 32px; height: 32px; }