/* Modern Matematizar Landing Page */
:root {
  /* Dark theme colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a24;
  --surface: #1e1e2e;
  --surface-hover: #252538;
  
  /* Text colors */
  --text-primary: #ffffff;
  --text-secondary: #b4b4c7;
  --text-muted: #888899;
  
  /* Brand colors */
  --primary: #4f46e5;
  --primary-light: #6366f1;
  --primary-dark: #3730a3;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  
  /* Gradient colors */
  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  --gradient-secondary: linear-gradient(135deg, #3730a3 0%, #0891b2 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  
  /* Border and shadow */
  --border: #2a2a3e;
  --border-light: #383851;
  --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 -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
}

/* Reset and base styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

*,
*:before,
*:after {
  max-width: 100%;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Enhanced background with multiple animated gradients */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background: 
    radial-gradient(circle at 20% 20%, rgba(79, 70, 229, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(139, 92, 246, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(245, 158, 11, 0.1) 0%, transparent 50%);
  filter: blur(60px);
  animation: float 20s ease-in-out infinite alternate;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: 
    radial-gradient(circle at 10% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 90% 50%, rgba(34, 211, 238, 0.1) 0%, transparent 40%);
  filter: blur(40px);
  animation: float-reverse 25s ease-in-out infinite alternate;
}

@keyframes float {
  0% { transform: translate3d(0, 0, 0) scale(1) rotate(0deg); }
  100% { transform: translate3d(-30px, -30px, 0) scale(1.1) rotate(2deg); }
}

@keyframes float-reverse {
  0% { transform: translate3d(0, 0, 0) scale(1) rotate(0deg); }
  100% { transform: translate3d(20px, 20px, 0) scale(0.95) rotate(-1deg); }
}

/* Floating shapes for visual interest */
.floating-shapes {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(1px);
  animation: float-shape 15s ease-in-out infinite;
}

.shape-1 {
  width: 300px;
  height: 300px;
  background: linear-gradient(45deg, rgba(79, 70, 229, 0.1), rgba(6, 182, 212, 0.05));
  top: 10%;
  left: 10%;
  animation-delay: 0s;
}

.shape-2 {
  width: 200px;
  height: 200px;
  background: linear-gradient(45deg, rgba(139, 92, 246, 0.08), rgba(245, 158, 11, 0.04));
  top: 60%;
  right: 15%;
  animation-delay: -5s;
}

.shape-3 {
  width: 150px;
  height: 150px;
  background: linear-gradient(45deg, rgba(6, 182, 212, 0.1), rgba(99, 102, 241, 0.05));
  top: 30%;
  right: 40%;
  animation-delay: -10s;
}

.shape-4 {
  width: 250px;
  height: 250px;
  background: linear-gradient(45deg, rgba(245, 158, 11, 0.06), rgba(239, 68, 68, 0.03));
  bottom: 20%;
  left: 20%;
  animation-delay: -7s;
}

@keyframes float-shape {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Links */
a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--accent-light);
  text-decoration: underline;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(30, 30, 46, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
  min-height: 70px;
  height: 70px;
  box-sizing: border-box;
}

/* Força a altura em todos os estados */
@supports (height: 100dvh) {
  header {
    position: fixed;
    top: env(safe-area-inset-top);
  }
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) 0;
  position: relative;
  height: 70px;
  min-height: 70px;
  box-sizing: border-box;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-container {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.logo-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 2;
}

.logo-gradient {
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  z-index: 1;
}

.nav nav {
  display: flex;
  gap: var(--space-xl);
}

/* Desktop Navigation - visible by default */
.desktop-nav {
  display: flex;
  gap: var(--space-xl);
}

/* Ensure mobile elements are hidden on desktop */
@media (min-width: 769px) {
  .mobile-menu-btn {
    display: none !important;
  }
  
  .mobile-nav {
    display: none !important;
  }
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 101;
}

.hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
  margin: 2px 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(30, 30, 46, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: var(--space-lg) 0;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 100;
  pointer-events: none;
}

.mobile-nav.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-nav-link {
  display: block;
  color: var(--text-secondary);
  font-weight: 500;
  padding: var(--space-md) var(--space-lg);
  text-decoration: none;
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--border);
}

.mobile-nav-link:last-child {
  border-bottom: none;
}

.mobile-nav-link:hover {
  color: var(--text-primary);
  background: rgba(79, 70, 229, 0.1);
  text-decoration: none;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.2s ease;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--surface);
  text-decoration: none;
}

/* Hero Section */
.hero {
  display: grid;
  grid-template-columns: 1.4fr 1.2fr;
  gap: var(--space-2xl);
  align-items: center;
  padding: var(--space-3xl) 0;
  min-height: 80vh;
  margin-top: 70px;
}

.hero-content {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.hero-content.animate {
  opacity: 1;
  transform: translateY(0);
}

.announcement-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(79, 70, 229, 0.1);
  border: 1px solid rgba(79, 70, 229, 0.3);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-xl);
  backdrop-filter: blur(10px);
}

.badge-icon {
  font-size: 1rem;
}

.badge-separator {
  width: 1px;
  height: 12px;
  background: var(--border-light);
}

.highlight {
  color: var(--accent);
  font-weight: 600;
}

.hero-title {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

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

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.7;
}

.hero-description strong {
  color: var(--text-primary);
  font-weight: 600;
}

.cta-container {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

/* Enhanced buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-xl);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn:hover::before {
  opacity: 1;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  text-decoration: none;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--primary);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-icon {
  font-size: 1.1rem;
}

.full-width {
  width: 100%;
  justify-content: center;
}

.founder-offer {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.offer-icon {
  font-size: 1.5rem;
}

.founder-offer p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

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

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mockup-container {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.mockup-glow {
  position: absolute;
  inset: -30px;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl);
  filter: blur(40px);
  opacity: 0.15;
  animation: pulse-glow 4s ease-in-out infinite alternate;
}

@keyframes pulse-glow {
  0% { opacity: 0.1; transform: scale(0.98); }
  100% { opacity: 0.2; transform: scale(1.02); }
}

.mockup {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: transparent;
}

.mockup img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.gridlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.05;
  background-image: 
    linear-gradient(var(--border-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-light) 1px, transparent 1px);
  background-size: 24px 24px;
}

.fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 30, 46, 0.1);
  backdrop-filter: blur(10px);
}

.fallback-content {
  text-align: center;
  padding: var(--space-xl);
}

.fallback-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.fallback p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* Stats Section */
.stats-section {
  padding: var(--space-3xl) 0;
  background: rgba(30, 30, 46, 0.3);
  backdrop-filter: blur(10px);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.stats-grid.animate {
  opacity: 1;
  transform: translateY(0);
}

.stat-card {
  text-align: center;
  padding: var(--space-xl);
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

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

.stat-label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Sections */
.section {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-lg);
  backdrop-filter: blur(10px);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  line-height: 1.2;
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-description strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Knowledge Graph Section */
.knowledge-graph {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.section-content {
  text-align: left;
}

.section-content .section-header {
  text-align: left;
  margin-bottom: var(--space-xl);
}

.features-grid {
  display: grid;
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-xl);
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateX(-30px);
}

.feature-card.animate {
  opacity: 1;
  transform: translateX(0);
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.visual-container {
  position: relative;
}

.graph-visualization {
  position: relative;
}

.graph-glow {
  position: absolute;
  inset: -30px;
  background: var(--gradient-secondary);
  border-radius: var(--radius-2xl);
  filter: blur(40px);
  opacity: 0.2;
  animation: pulse-glow 4s ease-in-out infinite alternate;
}

.frame {
  position: relative;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-light);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(10px);
}

.frame img {
  width: 100%;
  height: auto;
  display: block;
}

/* Pricing Section */
.pricing-section {
  padding: var(--space-3xl) 0;
  background: rgba(18, 18, 26, 0.5);
  backdrop-filter: blur(10px);
}

/* Pricing Toggle */
.pricing-toggle-container {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-3xl);
}

.pricing-toggle {
  position: relative;
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 4px;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.toggle-background {
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: calc(var(--radius-xl) - 4px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.3);
}

.pricing-toggle.annual .toggle-background {
  transform: translateX(100%);
}

.toggle-option {
  position: relative;
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  background: none;
  border: none;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.3s ease;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  min-width: 120px;
  border-radius: calc(var(--radius-xl) - 4px);
  overflow: visible;
}

.annual-option {
  overflow: visible;
}

.pricing-toggle:not(.annual) .toggle-option[data-period="monthly"],
.pricing-toggle.annual .toggle-option[data-period="annual"] {
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.toggle-option:hover {
  color: var(--text-primary);
  transform: translateY(-1px);
}

.pricing-toggle:not(.annual) .toggle-option[data-period="monthly"]:hover,
.pricing-toggle.annual .toggle-option[data-period="annual"]:hover {
  color: white;
  transform: translateY(0);
}

.discount-stamp {
  position: absolute;
  top: -4px;
  right: -6px;
  padding: 4px 8px;
  background: linear-gradient(135deg, #ff6b6b, #ee5a24);
  color: white;
  border-radius: 4px;
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  transform: rotate(28deg);
  box-shadow: 
    0 2px 8px rgba(238, 90, 36, 0.4),
    0 1px 3px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  z-index: 10;
  animation: stampPulse 2s ease-in-out infinite;
}

@keyframes stampPulse {
  0%, 100% {
    transform: rotate(28deg) scale(1);
  }
  50% {
    transform: rotate(18deg) scale(1.05);
  }
}

/* Responsive adjustments */
@media (max-width: 480px) {
  .pricing-toggle {
    margin: 0 var(--space-md);
  }
  
  .toggle-option {
    min-width: 100px;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.85rem;
  }
  
  .discount-stamp {
    top: -8px;
    right: -8px;
    padding: 3px 6px;
    font-size: 0.6rem;
    transform: rotate(17deg);
  }
  
  @keyframes stampPulse {
    0%, 100% {
      transform: rotate(17deg) scale(1);
    }
    50% {
      transform: rotate(10deg) scale(1.05);
    }
  }
}

.toggle-switch.annual .toggle-slider {
  transform: translateX(26px);
}

/* Single Pricing Card */
.single-pricing-container {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.pricing-card.single-plan {
  position: relative;
  max-width: 450px;
  width: 100%;
  padding: var(--space-3xl);
  background: var(--surface);
  border: 1px solid var(--primary);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(30px);
  box-shadow: 0 0 30px rgba(79, 70, 229, 0.2);
}

.pricing-card.single-plan.animate {
  opacity: 1;
  transform: translateY(0);
}

.pricing-card.single-plan:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(79, 70, 229, 0.3);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-sm) var(--space-lg);
  background: var(--gradient-primary);
  color: white;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  max-width: calc(100% - var(--space-lg));
  text-align: center;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.pricing-header h3 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.price-container {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-sm);
}

.monthly-equivalent {
  text-align: center;
  margin-bottom: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(16, 185, 129, 0.1));
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}

.equivalent-text {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.equivalent-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--success);
  background: linear-gradient(135deg, #22c55e, #10b981);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.currency {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.price {
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: all 0.3s ease;
}

.period {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.price-details {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.original-price {
  text-decoration: line-through;
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-right: var(--space-sm);
}

.savings {
  color: var(--success);
  font-weight: 600;
  font-size: 0.875rem;
}

.features-list {
  list-style: none;
  margin-bottom: var(--space-2xl);
}

.features-list li {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.features-list li:last-child {
  border-bottom: none;
}

.check-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  font-size: 0.875rem;
  font-weight: bold;
  flex-shrink: 0;
}

.trial-info {
  text-align: center;
  margin-top: var(--space-xl);
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.founder-offer-section {
  display: flex;
  justify-content: center;
}

.founder-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
  max-width: 600px;
}

.founder-icon {
  font-size: 2.5rem;
}

.founder-content h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.founder-content p {
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
}

.founder-link {
  color: var(--accent);
  font-weight: 600;
}

/* FAQ Section */
.faq-section {
  padding: var(--space-3xl) 0;
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-lg);
  background: var(--surface);
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(20px);
}

.faq-item.animate {
  opacity: 1;
  transform: translateY(0);
}

.faq-item:hover {
  border-color: var(--primary);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xl);
  cursor: pointer;
  transition: all 0.2s ease;
}

.faq-question:hover {
  background: var(--surface-hover);
}

.question-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.faq-question h3 {
  flex: 1;
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
}

.expand-icon {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.faq-item.open .expand-icon {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 var(--space-xl) var(--space-xl);
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Footer */
.modern-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand .brand {
  margin-bottom: var(--space-lg);
}

.footer-description {
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 400px;
}

.footer-links {
  display: flex;
  gap: var(--space-3xl);
}

.link-group h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.link-group a {
  display: block;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
  transition: all 0.2s ease;
}

.link-group a:hover {
  color: var(--accent);
  text-decoration: none;
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border);
}

.copyright {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-align: center;
  line-height: 1.6;
}

/* Prose Pages Styling */
.prose-container {
  max-width: 800px;
  margin: 0 auto;
}

.page-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
  padding-top: var(--space-3xl);
}

.page-title {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: var(--space-lg);
}

.prose {
  line-height: 1.8;
  color: var(--text-secondary);
}

.prose h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--space-2xl) 0 var(--space-lg) 0;
}

.prose p {
  margin-bottom: var(--space-lg);
}

.prose ul {
  margin: var(--space-lg) 0;
  padding-left: var(--space-xl);
}

.prose li {
  margin-bottom: var(--space-sm);
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  transition: color 0.2s ease;
}

.prose a:hover {
  color: var(--accent-hover);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    text-align: center;
  }
  
  .knowledge-graph {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }
  
  .section-content .section-header {
    text-align: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: center;
  }
  
  .footer-links {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  :root {
    --space-3xl: 2rem;
    --space-2xl: 1.5rem;
  }
  
  header {
    min-height: 60px !important;
    height: 60px !important;
    padding: 0;
    box-sizing: border-box;
  }
  
  .nav-container {
    min-height: 60px;
  }
  
  .container {
    padding: 0 var(--space-lg);
  }
  
  .nav {
    padding: 0 var(--space-lg);
    position: relative;
    height: 60px;
    min-height: 60px;
    box-sizing: border-box;
  }
  
  .nav .container {
    padding: 0 var(--space-lg);
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .desktop-nav {
    display: none !important;
  }
  
  .mobile-menu-btn {
    display: flex !important;
  }
  
  .mobile-nav {
    display: block !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(30, 30, 46, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    padding: var(--space-lg) 0;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
    pointer-events: none;
  }
  
  .mobile-nav.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  
  .mobile-nav-link {
    padding: var(--space-md) var(--space-lg);
    margin: 0 var(--space-md);
    border-radius: var(--radius-md);
  }
  
  .hero {
    min-height: 60vh;
    padding: var(--space-2xl) 0;
    gap: var(--space-xl);
    margin-top: 80px;
  }
  
  .hero-content {
    padding: 0 var(--space-sm);
  }
  
  .announcement-badge {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-md);
    margin-bottom: var(--space-lg);
  }
  
  .hero-description {
    font-size: 1.125rem;
    padding: 0 var(--space-sm);
    margin-bottom: var(--space-lg);
  }
  
  .cta-container {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: 0 var(--space-md);
  }
  
  .btn {
    width: 100%;
    justify-content: center;
    max-width: 300px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    padding: 0 var(--space-sm);
  }
  
  .stat-card {
    padding: var(--space-lg);
  }
  
  .section {
    padding: var(--space-2xl) 0;
  }
  
  .section-header {
    padding: 0 var(--space-md);
    margin-bottom: var(--space-2xl);
  }
  
  .features-grid, .pricing-grid {
    padding: 0 var(--space-sm);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .founder-card {
    flex-direction: column;
    text-align: center;
    margin: 0 var(--space-md);
    padding: var(--space-xl);
  }
  
  .faq-container {
    padding: 0 var(--space-sm);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-xl);
  }
  
  .prose-page {
    margin-top: 30px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-lg);
  }
  
  .nav .container {
    padding: 0 var(--space-lg);
  }
  
  .hero-content {
    padding: 0 var(--space-md);
  }
  
  .hero-title {
    font-size: 2rem;
    padding: 0 var(--space-sm);
  }
  
  .hero-description {
    padding: 0 var(--space-md);
  }
  
  .cta-container {
    padding: 0 var(--space-lg);
  }
  
  .btn {
    width: 100%;
    justify-content: center;
    max-width: 280px;
    padding: var(--space-md) var(--space-lg);
  }
  
  .section-title {
    font-size: 1.75rem;
    padding: 0 var(--space-md);
  }
  
  .section-description {
    padding: 0 var(--space-md);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: 0 var(--space-md);
  }
  
  .features-grid {
    gap: var(--space-md);
    padding: 0 var(--space-md);
  }
  
  .feature-card {
    padding: var(--space-lg);
  }
  
  .pricing-card {
    padding: var(--space-lg);
    margin: 0 var(--space-sm);
  }
  
  .faq-question {
    padding: var(--space-lg);
  }
  
  .faq-container {
    padding: 0 var(--space-md);
  }
  
  .founder-card {
    margin: 0 var(--space-lg);
    padding: var(--space-lg);
  }
  
  .mobile-nav-link {
    padding: var(--space-md) var(--space-xl);
    margin: 0 var(--space-lg);
  }
  
  .footer-content {
    padding: 0 var(--space-md);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-xl);
    padding: 0 var(--space-md);
  }
  
  .copyright {
    padding: 0 var(--space-md);
    text-align: center;
  }
  
  /* Prose pages mobile */
  .prose-container {
    padding: 0 var(--space-md);
  }
  
  .page-header {
    padding-top: var(--space-2xl);
    margin-bottom: var(--space-2xl);
  }
  
  .prose {
    padding: 0 var(--space-sm);
  }
  
  /* Pricing badge mobile fix */
  .pricing-badge {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-md);
    max-width: calc(100% - var(--space-md));
  }
}

@media (max-width: 360px) {
  .brand span {
    font-size: 1rem;
  }
  
  .container {
    padding: 0 var(--space-md);
  }
  
  .hero-content {
    padding: 0 var(--space-lg);
  }
  
  .mobile-nav-link {
    padding: var(--space-sm) var(--space-lg);
    margin: 0 var(--space-md);
  }
}