/* Reset & Base */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #1a1a2e;
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  background: linear-gradient(135deg, #FF6B6B, #4ECDC4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  font-size: 14px;
  font-weight: 500;
  color: #555;
  transition: color 0.2s;
}

.nav a:hover {
  color: #FF6B6B;
}

/* Hero */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, #fafafa 0%, #fff 100%);
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 107, 107, 0.1);
  color: #FF6B6B;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.gradient-text {
  background: linear-gradient(135deg, #FF6B6B, #4ECDC4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 18px;
  color: #666;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 60px;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #FF6B6B, #e55a5a);
  color: #fff;
  box-shadow: 0 4px 14px rgba(255, 107, 107, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.45);
}

.btn-outline {
  background: #fff;
  color: #333;
  border: 1.5px solid #ddd;
}

.btn-outline:hover {
  border-color: #FF6B6B;
  color: #FF6B6B;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-size: 28px;
  font-weight: 800;
  background: linear-gradient(135deg, #FF6B6B, #4ECDC4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 13px;
  color: #888;
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: #e0e0e0;
}

/* Sections */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-badge {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(78, 205, 196, 0.1);
  color: #4ECDC4;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 16px;
  color: #888;
}

/* Features */
.features {
  padding: 100px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid #f0f0f0;
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  border-color: transparent;
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: #777;
  line-height: 1.6;
}

/* Services */
.services {
  padding: 100px 0;
  background: #fafafa;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  padding: 36px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid #f0f0f0;
  transition: all 0.3s;
}

.service-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.service-number {
  font-size: 40px;
  font-weight: 800;
  background: linear-gradient(135deg, #FF6B6B, #4ECDC4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: #777;
  line-height: 1.7;
}

/* Download */
.download {
  padding: 100px 0;
  text-align: center;
}

.download-inner {
  max-width: 600px;
}

.download-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
}

.download-desc {
  font-size: 16px;
  color: #777;
  margin-bottom: 40px;
}

.download-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
}

.store-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  background: #1a1a2e;
  color: #fff;
  border-radius: 14px;
  transition: all 0.2s;
}

.store-btn:hover {
  background: #2a2a3e;
  transform: translateY(-2px);
}

.store-btn small {
  display: block;
  font-size: 10px;
  opacity: 0.7;
  text-align: left;
}

.store-btn strong {
  display: block;
  font-size: 16px;
  text-align: left;
}

/* Footer */
.footer {
  padding: 48px 0;
  border-top: 1px solid #f0f0f0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand p {
  font-size: 13px;
  color: #999;
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 14px;
  color: #777;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #FF6B6B;
}

.footer-copy {
  font-size: 13px;
  color: #aaa;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 32px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-number {
    font-size: 22px;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .nav {
    gap: 20px;
  }

  .section-title {
    font-size: 28px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
}