:root {
  --bg-dark: #0a0a0b;
  --bg-dark-accent: #111113;
  --text-main: #f5f5f7;
  --text-muted: #a1a1a6;
  --primary-accent: #0071e3;
  --primary-glow: rgba(0, 113, 227, 0.4);
  --border-color: rgba(255, 255, 255, 0.08);
  --glass-bg: rgba(20, 20, 22, 0.6);
  --glass-border: rgba(255, 255, 255, 0.1);
  --success: #34c759;
  
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: dark;
  color: var(--text-main);
  background-color: var(--bg-dark);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg-dark);
  /* Subdued animated background gradient */
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(0, 113, 227, 0.05), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(160, 32, 240, 0.05), transparent 25%);
  background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: #fff;
}

.text-gradient {
  background: linear-gradient(135deg, #fff 0%, #a1a1a6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-primary {
  background: linear-gradient(135deg, #0071e3 0%, #409cff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Glassmorphism Utilities */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
}

/* Modern Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: #fff;
  background-color: var(--primary-accent);
  border: none;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  box-shadow: 0 4px 14px 0 var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 var(--primary-glow);
  background-color: #0077ed;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-main);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Layout Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mb-4 { margin-bottom: 1rem; }

/* Grid */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* Hero Section */
.hero-section {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6rem 2rem;
  position: relative;
  overflow: hidden;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 5rem);
  margin-bottom: 1.5rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.video-container {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-video {
  width: 100%;
  max-width: 800px;
  border-radius: 24px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
}

/* Features Section */
.features-section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 4rem;
}

.feature-card {
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.2);
}

.feature-card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

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

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 113, 227, 0.1);
  color: var(--primary-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

/* Pricing Section */
.pricing-section {
  padding: 5rem 0;
  position: relative;
}

.pricing-card {
  padding: 3rem 2rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.pricing-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: transparent;
  transition: background 0.3s ease;
}

.pricing-card.popular {
  border-color: rgba(0, 113, 227, 0.3);
  box-shadow: 0 0 40px -10px rgba(0, 113, 227, 0.15);
}

.pricing-card.popular::before {
  background: linear-gradient(90deg, #0071e3, #409cff);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.2);
}

.pricing-card.popular:hover {
  border-color: rgba(0, 113, 227, 0.5);
  box-shadow: 0 0 50px -10px rgba(0, 113, 227, 0.25);
}

.pricing-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--primary-accent);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-tier {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.pricing-original {
  font-size: 1.25rem;
  color: var(--text-muted);
  text-decoration: line-through;
  font-weight: 400;
}

.pricing-currency {
  font-size: 1.5rem;
  color: var(--text-muted);
}

.pricing-desc {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.pricing-features {
  list-style: none;
  margin-bottom: 2.5rem;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--text-main);
  font-size: 0.95rem;
}

.pricing-features .icon {
  color: var(--primary-accent);
  flex-shrink: 0;
  margin-top: 2px;
  width: 18px;
  height: 18px;
}

.pricing-action {
  width: 100%;
  margin-top: auto;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  margin-top: 5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  font-weight: 500;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 70px;
  display: flex;
  align-items: center;
  z-index: 50;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

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

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  color: var(--primary-accent);
  width: 24px;
  height: 24px;
}

.nav-btn {
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
}

/* Animations */
.animate {
  opacity: 0;
  will-change: transform, opacity;
}

.slide-up.in-view {
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  animation-delay: var(--delay, 0s);
}

.fade-in.in-view {
  animation: fadeIn 0.8s ease forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes slideUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

/* Form Elements */
.form-group {
  margin-bottom: 1.5rem;
  width: 100%;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  text-align: left;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  outline: none;
  transition: all 0.2s ease;
}

.form-input:focus {
  border-color: var(--primary-accent);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.1);
}

.alert {
  padding: 1rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
  border: 1px solid transparent;
  text-align: center;
}

.alert-danger {
  background: rgba(255, 59, 48, 0.1);
  border-color: rgba(255, 59, 48, 0.2);
  color: #ff453a;
}

.w-100 { width: 100%; }
.mt-3 { margin-top: 0.75rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-6 { margin-bottom: 1.5rem; }
.text-muted { color: var(--text-muted); }
.small { font-size: 0.85rem; }