/* ===================================
   Void V4 - Enterprise WhatsApp Gateway
   Professional Blue Dark Theme
   =================================== */

:root {
  /* GitHub-inspired dark colors with blue accents */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #1c2128;
  --bg-card: rgba(22, 27, 34, 0.95);
  
  /* Accent colors - blue theme */
  --accent-primary: #3b82f6;
  --accent-secondary: #1d4ed8;
  --accent-tertiary: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.3);
  
  /* Text colors */
  --text-primary: #ffffff;
  --text-secondary: #c9d1d9;
  --text-muted: #8b949e;
  
  /* Border colors */
  --border-default: #30363d;
  --border-muted: #21262d;
  --border-accent: rgba(59, 130, 246, 0.3);
  
  /* State colors */
  --success: #3fb950;
  --warning: #d29922;
  --error: #f85149;
  --info: #58a6ff;
  
  /* Shadows and effects */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.16);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.25);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 30px var(--accent-glow);
  
  /* Animations */
  --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-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout */
  --max-width: 1280px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* ===================================
   Global Styles
   =================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding-top: 80px;
  overflow-x: hidden;
  line-height: 1.6;
  min-height: 100vh;
  font-size: 16px;
}

/* Animated background gradient */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(29, 78, 216, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(96, 165, 250, 0.05) 0%, transparent 50%);
  z-index: -2;
  animation: gradientFloat 20s ease-in-out infinite;
}

@keyframes gradientFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-3%, 3%) scale(1.03); }
  66% { transform: translate(3%, -3%) scale(1.02); }
}

/* Particle system */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 25s infinite linear;
  box-shadow: 0 0 20px currentColor;
  color: var(--accent-primary);
}

@keyframes particleFloat {
  0% {
    opacity: 0;
    transform: translateY(100vh) scale(0);
  }
  10% {
    opacity: 0.5;
  }
  90% {
    opacity: 0.3;
  }
  100% {
    opacity: 0;
    transform: translateY(-100vh) scale(1.5);
  }
}

/* ===================================
   Navigation
   =================================== */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: rgba(13, 17, 23, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-default);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  transition: var(--transition-base);
}

nav.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(13, 17, 23, 0.98);
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  transition: var(--transition-base);
}

.brand:hover {
  transform: translateY(-2px);
}

.logo {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 24px;
  color: var(--bg-primary);
  box-shadow: 0 0 20px var(--accent-glow);
  animation: logoGlow 3s ease-in-out infinite;
}

@keyframes logoGlow {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
  50% { box-shadow: 0 0 30px var(--accent-glow), 0 0 40px var(--accent-glow); }
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-subtitle {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  font-weight: 500;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-toggle:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-accent);
}

/* ===================================
   Hero Section
   =================================== */

.hero-section {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 5% 120px;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-accent);
  border-radius: 50px;
  color: var(--accent-primary);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 32px;
  animation: fadeInUp 1s ease-out 0.2s both, pulse 2s ease-in-out 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.hero-badge i {
  font-size: 16px;
}

.hero-title {
  font-size: 72px;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -2px;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s ease-in-out infinite;
  background-size: 200% auto;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-description {
  font-size: 24px;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 48px;
  line-height: 1.6;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 80px;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.5s both;
}

.hero-btn {
  padding: 16px 36px !important;
  font-size: 18px !important;
  font-weight: 600 !important;
  border-radius: var(--radius-md) !important;
  transition: var(--transition-base) !important;
}

/* Stats Container */
.stats-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: var(--transition-base);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0;
  transition: var(--transition-base);
}

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

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

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  box-shadow: 0 8px 20px var(--accent-glow);
}

.stat-info {
  flex: 1;
}

.stat-value {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

/* ===================================
   Main Content
   =================================== */

.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 5%;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 64px;
  animation: fadeInUp 0.8s ease-out;
}

.section-header h2 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.section-header h2 i {
  color: var(--accent-primary);
}

.section-subtitle {
  font-size: 20px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===================================
   Features Section
   =================================== */

.features-section {
  padding: 120px 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s ease-out both;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-xl);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
  color: var(--text-primary);
  transition: var(--transition-base);
}

.gradient-1 { background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%); }
.gradient-2 { background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%); }
.gradient-3 { background: linear-gradient(135deg, #93c5fd 0%, #60a5fa 100%); }
.gradient-4 { background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%); }
.gradient-5 { background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%); }
.gradient-6 { background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%); }

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.feature-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: 50px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  transition: var(--transition-fast);
}

.tag:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ===================================
   Pricing Section
   =================================== */

.pricing-section {
  padding: 120px 0;
  background: var(--bg-secondary);
  margin: 0 -5vw;
  padding-left: 5vw;
  padding-right: 5vw;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  transition: var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
  animation: fadeInUp 0.8s ease-out both;
}

.pricing-card.featured {
  border: 2px solid var(--accent-primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.05);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-xl);
}

.pricing-card.featured:hover {
  transform: translateY(-8px) scale(1.05);
}

.pricing-badge {
  position: absolute;
  top: 24px;
  right: 24px;
  padding: 6px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-badge.popular {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  border: none;
  animation: pulse 2s ease-in-out infinite;
}

.pricing-header {
  margin-bottom: 32px;
}

.pricing-header h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.currency {
  font-size: 24px;
  color: var(--text-muted);
  font-weight: 600;
}

.amount {
  font-size: 56px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.period {
  font-size: 18px;
  color: var(--text-muted);
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex: 1;
}

.pricing-features li {
  padding: 12px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-muted);
}

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

.pricing-features li i {
  font-size: 16px;
}

.pricing-features li .fa-check {
  color: var(--success);
}

.pricing-features li .fa-times {
  color: var(--text-muted);
}

.pricing-features li.disabled {
  opacity: 0.5;
}

.pricing-btn {
  width: 100%;
  padding: 16px 32px !important;
  font-size: 16px !important;
  font-weight: 600 !important;
  border-radius: var(--radius-md) !important;
  text-align: center;
  transition: var(--transition-base) !important;
}

.pricing-btn.primary-starter {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)) !important;
  color: var(--bg-primary) !important;
  box-shadow: 0 0 20px var(--accent-glow), 0 4px 12px rgba(0, 0, 0, 0.3) !important;
  font-weight: 700 !important;
  font-size: 18px !important;
  padding: 18px 32px !important;
  animation: buttonPulse 2s ease-in-out infinite !important;
  position: relative !important;
  overflow: hidden !important;
}

.pricing-btn.primary-starter::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.pricing-btn.primary-starter:hover::before {
  width: 300px;
  height: 300px;
}

.pricing-btn.primary-starter:hover {
  transform: translateY(-2px) scale(1.02) !important;
  box-shadow: 0 0 30px var(--accent-glow), 0 8px 20px rgba(0, 0, 0, 0.4) !important;
}

@keyframes buttonPulse {
  0%, 100% {
    box-shadow: 0 0 20px var(--accent-glow), 0 4px 12px rgba(0, 0, 0, 0.3);
  }
  50% {
    box-shadow: 0 0 30px var(--accent-glow), 0 6px 16px rgba(0, 0, 0, 0.35);
  }
}

/* ===================================
   Testimonials Section
   =================================== */

.testimonials-section {
  padding: 120px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition-base);
  animation: fadeInUp 0.8s ease-out both;
}

.testimonial-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-xl);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
}

.testimonial-stars i {
  color: #fbbf24;
  font-size: 16px;
}

.testimonial-text {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-muted);
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-primary);
}

.author-info h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.author-info p {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===================================
   Connect Section
   =================================== */

.connect-section {
  margin: 120px 0;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 80px 64px;
  backdrop-filter: blur(20px);
}

.instructions {
  max-width: 800px;
  margin: 0 auto 48px;
}

.instructions h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.steps-list {
  list-style: none;
  counter-reset: step-counter;
}

.steps-list li {
  counter-increment: step-counter;
  padding: 20px 0;
  padding-left: 72px;
  position: relative;
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-left: 2px solid var(--border-default);
  margin-left: 24px;
}

.steps-list li:last-child {
  border-left-color: transparent;
}

.step-number {
  position: absolute;
  left: -25px;
  top: 16px;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.connection-form {
  max-width: 600px;
  margin: 0 auto;
}

.input-box {
  margin-bottom: 24px;
}

.input-group {
  position: relative;
  margin-bottom: 16px;
}

.input-group i {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 18px;
}

.input-group input {
  width: 100%;
  padding: 16px 20px 16px 56px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 16px;
  transition: var(--transition-fast);
}

.input-group input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.status-message {
  padding: 16px 20px;
  border-radius: var(--radius-md);
  font-size: 15px;
  text-align: center;
  animation: fadeInUp 0.4s ease-out;
  display: none;
}

.status-message.visible {
  display: block;
}

.status-message.success {
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.status-message.error {
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
}

.status-message.warning {
  background: rgba(210, 153, 34, 0.1);
  border: 1px solid var(--warning);
  color: var(--warning);
}

/* CTA Section Styles */
.cta-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cta-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  text-align: left;
  transition: var(--transition-base);
}

.cta-feature:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.cta-feature i {
  font-size: 20px;
  color: var(--success);
  flex-shrink: 0;
}

.cta-feature span {
  color: var(--text-secondary);
  font-size: 15px;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.cta-btn {
  padding: 16px 40px;
  font-size: 16px;
}

.cta-note {
  color: var(--text-muted);
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.cta-note i {
  color: var(--accent-primary);
}

/* ===================================
   Buttons
   =================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-base);
  border: none;
  font-family: inherit;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--accent-glow);
}

.primary-btn:active {
  transform: translateY(0);
}

.secondary-btn {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.secondary-btn:hover {
  background: var(--bg-card);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

/* ===================================
   Footer
   =================================== */

.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-default);
  padding: 80px 0 40px;
  margin-top: 120px;
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 5%;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-column h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.brand-column {
  max-width: 400px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.footer-logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 20px;
  color: var(--bg-primary);
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand-tagline {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-description {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  font-size: 15px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  text-decoration: none;
}

.social-link:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--bg-primary);
  transform: translateY(-3px);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  transition: var(--transition-fast);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid var(--border-default);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-muted);
  font-size: 14px;
}

.footer-bottom-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.footer-bottom-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-bottom-links a:hover {
  color: var(--accent-primary);
}

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

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {
  .hero-title {
    font-size: 56px;
  }
  
  .hero-description {
    font-size: 20px;
  }
  
  .section-header h2 {
    font-size: 40px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  nav {
    padding: 0 20px;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: rgba(13, 17, 23, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-default);
    flex-direction: column;
    padding: 20px;
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
  }
  
  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-links a {
    width: 100%;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-muted);
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero-section {
    padding: 60px 20px 80px;
  }
  
  .hero-badge {
    font-size: 13px;
    padding: 7px 18px;
    margin-bottom: 28px;
  }
  
  .hero-badge i {
    font-size: 15px;
  }
  
  .hero-title {
    font-size: 40px;
  }
  
  .hero-description {
    font-size: 18px;
  }
  
  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .hero-btn {
    width: 100%;
  }
  
  .stats-container {
    grid-template-columns: 1fr;
  }
  
  .section-header h2 {
    font-size: 32px;
  }
  
  .section-subtitle {
    font-size: 16px;
  }
  
  .feature-grid,
  .pricing-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-card.featured {
    transform: scale(1);
  }
  
  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }
  
  .connect-section {
    padding: 48px 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-badge {
    font-size: 12px;
    padding: 6px 16px;
    margin-bottom: 24px;
  }
  
  .hero-badge i {
    font-size: 14px;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-description {
    font-size: 16px;
  }
  
  .stat-card {
    padding: 24px;
  }
  
  .stat-value {
    font-size: 28px;
  }
  
  .feature-card {
    padding: 32px 24px;
  }
}

/* ===================================
   Animations & Effects
   =================================== */

/* Smooth fade-in for elements */
.fade-in {
  animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Loading spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  border-top-color: var(--accent-primary);
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

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

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  nav,
  .particles,
  .hero-actions,
  .footer-bottom-links {
    display: none;
  }
  
  body {
    background: white;
    color: black;
    padding-top: 0;
  }
}

/* ===================================
   Authentication Pages
   =================================== */

.auth-container {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  margin-bottom: 60px;
}

.auth-card {
  max-width: 1100px;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  backdrop-filter: blur(20px);
  animation: fadeInUp 0.6s ease-out;
}

/* Auth Brand Section */
.auth-brand-section {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(29, 78, 216, 0.05));
  padding: 60px 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border-default);
  position: relative;
  overflow: hidden;
}

.auth-brand-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  animation: rotateSlow 30s linear infinite;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.auth-brand-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.auth-logo-container {
  position: relative;
  display: inline-block;
  margin-bottom: 30px;
}

.auth-logo {
  width: 100px;
  height: 100px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 48px;
  color: var(--bg-primary);
  box-shadow: 0 0 40px var(--accent-glow);
  animation: logoFloat 3s ease-in-out infinite;
  position: relative;
  z-index: 2;
}

@keyframes logoFloat {
  0%, 100% { 
    transform: translateY(0) scale(1);
    box-shadow: 0 0 40px var(--accent-glow);
  }
  50% { 
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 10px 50px var(--accent-glow);
  }
}

.auth-logo-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, var(--accent-glow), transparent);
  border-radius: 50%;
  z-index: 1;
  animation: pulse 2s ease-in-out infinite;
}

.auth-brand-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.auth-brand-description {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 40px;
}

.auth-features-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
  max-width: 300px;
  margin: 0 auto;
}

.auth-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: rgba(59, 130, 246, 0.05);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.auth-feature-item:hover {
  background: rgba(59, 130, 246, 0.1);
  border-color: var(--border-accent);
  transform: translateX(5px);
}

.auth-feature-item i {
  font-size: 20px;
  color: var(--accent-primary);
}

.auth-feature-item span {
  color: var(--text-secondary);
  font-size: 14px;
}

/* Auth Form Section */
.auth-form-section {
  padding: 60px 50px;
}

.auth-form-header {
  margin-bottom: 40px;
}

.auth-form-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.auth-form-subtitle {
  font-size: 16px;
  color: var(--text-muted);
}

/* Form Styles */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-label i {
  color: var(--accent-primary);
  font-size: 12px;
}

.input-wrapper {
  position: relative;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 15px;
  transition: var(--transition-base);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: var(--bg-tertiary);
}

.form-input:hover {
  border-color: var(--border-accent);
}

.form-input.valid {
  border-color: var(--success);
}

.form-input.invalid {
  border-color: var(--error);
}

.password-wrapper {
  position: relative;
}

.toggle-password {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  font-size: 16px;
  transition: var(--transition-fast);
  outline: none;
}

.toggle-password:hover {
  color: var(--accent-primary);
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: -4px;
}

/* Form Options */
.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: -8px;
}

.checkbox-container {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  position: relative;
}

.checkbox-container input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-default);
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  transition: var(--transition-base);
  position: relative;
  flex-shrink: 0;
}

.checkbox-container:hover .checkmark {
  border-color: var(--accent-primary);
}

.checkbox-container input[type="checkbox"]:checked ~ .checkmark {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.checkbox-container input[type="checkbox"]:checked ~ .checkmark::after {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--bg-primary);
  font-size: 14px;
  font-weight: bold;
}

.checkbox-label {
  font-size: 14px;
  color: var(--text-secondary);
}

.forgot-password,
.inline-link {
  font-size: 14px;
  color: var(--accent-primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.forgot-password:hover,
.inline-link:hover {
  color: var(--accent-secondary);
  text-decoration: underline;
}

/* Form Status */
.form-status {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  display: none;
  animation: slideDown 0.3s ease-out;
}

.form-status.success {
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.form-status.error {
  background: rgba(248, 81, 73, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
}

.form-status.info {
  background: rgba(88, 166, 255, 0.1);
  border: 1px solid var(--info);
  color: var(--info);
}

/* Auth Button */
.auth-btn {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.auth-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.auth-btn:active:not(:disabled) {
  transform: translateY(0);
}

.auth-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.auth-btn.loading {
  pointer-events: none;
}

.auth-btn i {
  font-size: 18px;
}

/* Auth Divider */
.auth-divider {
  position: relative;
  text-align: center;
  margin: 30px 0;
}

.auth-divider::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-default);
}

.auth-divider span {
  position: relative;
  padding: 0 16px;
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 14px;
  z-index: 1;
}

/* Auth Footer */
.auth-footer {
  text-align: center;
  margin-top: 20px;
}

.auth-footer p {
  font-size: 14px;
  color: var(--text-muted);
}

.auth-link {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition-fast);
}

.auth-link:hover {
  color: var(--accent-secondary);
  text-decoration: underline;
}

/* Simplified Auth Card */
.auth-card-simple {
  max-width: 500px !important;
  grid-template-columns: 1fr !important;
}

.auth-form-centered {
  padding: 50px 40px !important;
}

.auth-form-header {
  text-align: center;
  margin-bottom: 32px !important;
}

.auth-form-title {
  font-size: 28px !important;
}

/* Social Login Buttons */
.social-login-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

.social-login-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  outline: none;
}

.social-login-btn:hover {
  border-color: var(--border-accent);
  background: var(--bg-tertiary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.social-login-btn i {
  font-size: 18px;
}

.github-btn:hover {
  border-color: #6e5494;
  background: rgba(110, 84, 148, 0.1);
}

.github-btn i {
  color: #6e5494;
}

.google-btn:hover {
  border-color: #ea4335;
  background: rgba(234, 67, 53, 0.1);
}

.google-btn i {
  color: #ea4335;
}

/* Auth Page Footer */
.auth-page-footer {
  position: relative;
  bottom: 0;
  width: 100%;
  padding: 20px;
  text-align: center;
  border-top: 1px solid var(--border-default);
  background: var(--bg-secondary);
}

.auth-page-footer p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.auth-page-footer .footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.auth-page-footer .footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition-fast);
}

.auth-page-footer .footer-links a:hover {
  color: var(--accent-primary);
}

.auth-page-footer .footer-links span {
  color: var(--border-default);
}

/* Responsive Design for Auth Pages */
@media (max-width: 968px) {
  .auth-card {
    grid-template-columns: 1fr;
  }

  .auth-brand-section {
    border-right: none;
    border-bottom: 1px solid var(--border-default);
    padding: 40px 30px;
  }

  .auth-form-section {
    padding: 40px 30px;
  }

  .auth-brand-title {
    font-size: 28px;
  }

  .auth-form-title {
    font-size: 28px;
  }
}

@media (max-width: 576px) {
  .auth-container {
    padding: 20px 10px;
  }

  .auth-card {
    border-radius: var(--radius-lg);
  }

  .auth-brand-section {
    padding: 30px 20px;
  }

  .auth-form-section {
    padding: 30px 20px;
  }

  .auth-logo {
    width: 80px;
    height: 80px;
    font-size: 40px;
  }

  .auth-logo-glow {
    width: 100px;
    height: 100px;
  }

  .auth-brand-title {
    font-size: 24px;
  }

  .auth-brand-description {
    font-size: 14px;
  }

  .auth-form-title {
    font-size: 24px;
  }

  .auth-features-list {
    max-width: 100%;
  }

  .form-options {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .auth-btn {
    padding: 14px;
    font-size: 15px;
  }
}

/* ===================================
   Enhanced Verification Styles
   =================================== */

@keyframes inputGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
  }
  50% {
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
  }
}

#verificationCode:focus {
  animation: inputGlow 2s ease-in-out infinite;
}

/* ===================================
   Circular Logo Styles
   =================================== */

.circle-logo {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent-primary);
  transition: all var(--transition-base);
  cursor: pointer;
}

.circle-logo:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px var(--accent-glow);
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

/* Update navigation brand to use circular logo */
.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Hide the old logo text since we're using image */
.logo {
  display: none;
}

/* Footer circular logo */
.footer-logo {
  display: none;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Auth page circular logo */
.auth-logo {
  display: none;
}

.auth-logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile responsive logo */
@media (max-width: 768px) {
  .circle-logo {
    width: 40px;
    height: 40px;
  }
}