/* ==========================================================================
   VERTIGENICS™ - HIGH-CONVERSION SALES LANDING PAGE
   Main Design System, Tokens, Typography & Base Layout
   ========================================================================== */

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

:root {
  /* Brand Color Tokens */
  --primary-900: #06241b;
  --primary-800: #0a3d2e;
  --primary-700: #0d5440;
  --primary-600: #059669;
  --primary-500: #10b981;
  --primary-400: #34d399;
  --primary-300: #6ee7b7;
  --primary-100: #d1fae5;
  --primary-50: #ecfdf5;

  /* Accent & Conversion Gold */
  --gold-700: #b45309;
  --gold-600: #d97706;
  --gold-500: #f59e0b;
  --gold-400: #fbbf24;
  --gold-300: #fde68a;
  --gold-100: #fef3c7;
  --gold-50: #fffbeb;

  /* Neutrals & Dark Contrast */
  --dark-950: #06110e;
  --dark-900: #0f172a;
  --dark-800: #1e293b;
  --dark-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;
  --white: #ffffff;

  /* Functional */
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --bg-tint: #f4f8f6;

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

  /* Elevation / Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 25px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 35px -5px rgba(6, 36, 27, 0.12), 0 8px 10px -6px rgba(6, 36, 27, 0.06);
  --shadow-glow-emerald: 0 0 35px rgba(16, 185, 129, 0.35);
  --shadow-glow-gold: 0 0 30px rgba(245, 158, 11, 0.3);

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Max Container Widths */
  --container-max: 1240px;
  --container-narrow: 920px;
  --container-compact: 760px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* ==========================================================================
   CSS Reset & Base Rules
   ========================================================================== */

*, *::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(--dark-700);
  background-color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--dark-900);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.text-gradient-emerald {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-500) 50%, var(--gold-600) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(135deg, var(--gold-500) 0%, #fef08a 50%, var(--gold-400) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary-700);
  background: var(--primary-50);
  border: 1px solid var(--primary-300);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  text-align: center;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--slate-600);
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem auto;
}

/* ==========================================================================
   Container & Layout
   ========================================================================== */

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

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

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

.section-padding {
  padding-top: clamp(60px, 8vw, 100px);
  padding-bottom: clamp(60px, 8vw, 100px);
}

.bg-light {
  background-color: var(--bg-tint);
}

.bg-dark {
  background: linear-gradient(170deg, var(--dark-950) 0%, var(--primary-900) 100%);
  color: var(--slate-100);
}

.bg-dark h2, .bg-dark h3, .bg-dark h4 {
  color: var(--white);
}

.bg-emerald-deep {
  background: radial-gradient(circle at 50% 20%, #0d5440 0%, #06241b 80%);
  color: var(--white);
}

/* ==========================================================================
   Button System (High-Conversion CTAs)
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  padding: 18px 36px;
  border-radius: var(--radius-full);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
}

.btn-primary {
  background: linear-gradient(135deg, #10b981 0%, #059669 50%, #047857 100%);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 12px 28px -6px rgba(16, 185, 129, 0.45), 0 0 0 1px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.015);
  box-shadow: 0 18px 36px -6px rgba(16, 185, 129, 0.55), 0 0 25px rgba(52, 211, 153, 0.4);
}

.btn-gold {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 70%, #b45309 100%);
  color: #1a0f02;
  font-weight: 800;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 14px 30px -6px rgba(245, 158, 11, 0.45), 0 0 0 1px rgba(245, 158, 11, 0.25);
}

.btn-gold:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 20px 40px -6px rgba(245, 158, 11, 0.6), 0 0 30px rgba(251, 191, 36, 0.5);
}

.btn-shimmer::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -60%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    60deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: rotate(25deg);
  animation: btnShimmer 3.5s infinite;
}

@keyframes btnShimmer {
  0% { left: -70%; }
  35% { left: 140%; }
  100% { left: 140%; }
}

.btn-icon {
  display: inline-flex;
  transition: transform var(--transition-base);
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

.btn-full {
  width: 100%;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.95rem;
}

/* ==========================================================================
   Friction Removers & Guarantees Text
   ========================================================================== */

.friction-remover {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.875rem;
  color: var(--slate-600);
  margin-top: 14px;
  font-weight: 500;
}

.friction-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.friction-item svg {
  width: 16px;
  height: 16px;
  color: var(--primary-600);
  flex-shrink: 0;
}

.rating-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--slate-200);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dark-800);
}

.stars-gold {
  color: var(--gold-500);
  display: inline-flex;
  letter-spacing: 2px;
  font-size: 1rem;
}

/* ==========================================================================
   Badges & Pills
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-gold {
  background: var(--gold-500);
  color: #1a0f02;
}

.badge-emerald {
  background: var(--primary-600);
  color: var(--white);
}

.badge-outline {
  border: 1px solid currentColor;
  background: transparent;
}

/* ==========================================================================
   Responsive Utilities & Breakpoints
   ========================================================================== */

@media (max-width: 768px) {
  .section-padding {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .container, .container-narrow, .container-compact {
    padding-left: 16px;
    padding-right: 16px;
  }
  
  .section-title {
    font-size: clamp(1.75rem, 6vw, 2.3rem);
    margin-bottom: 0.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .btn {
    font-size: 1.05rem;
    padding: 16px 24px;
  }

  .friction-remover {
    font-size: 0.8125rem;
    flex-direction: column;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .section-padding {
    padding-top: 36px;
    padding-bottom: 36px;
  }

  .container, .container-narrow, .container-compact {
    padding-left: 12px;
    padding-right: 12px;
  }

  .section-title {
    font-size: 1.6rem;
  }

  .section-subtitle {
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
  }

  .btn {
    font-size: 1rem;
    padding: 14px 20px;
    width: 100%;
  }

  .eyebrow {
    font-size: 0.75rem;
    padding: 5px 12px;
  }
}