:root {
  --primary-color: #ff3366;
  --secondary-color: #8800cc;
  --accent-color: #00ccff;
  --text-color: #333333;
  --light-text: #ffffff;
  --dark-bg: #16161e;
  --light-bg: #f8f8fc;
  --gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --border-radius: 10px;
  --box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.7;
  color: var(--text-color);
  background-color: var(--light-bg);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: all 0.3s ease;
}

a:hover {
  color: var(--secondary-color);
}

/* Header */
.site-header {
  background-color: var(--dark-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-logo svg {
  width: 40px;
  height: 40px;
}

.site-logo span {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--light-text);
  letter-spacing: 0.5px;
}

.nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-link {
  color: var(--light-text);
  font-weight: 500;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--light-text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  background-image: radial-gradient(circle at top right, rgba(136, 0, 204, 0.8), rgba(22, 22, 30, 0.95)), 
                   linear-gradient(135deg, #16161e, #16161e);
  color: var(--light-text);
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cpath fill='%23ffffff' fill-opacity='0.05' d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z'/%3E%3C/svg%3E");
  z-index: -1;
}

.hero-content {
  max-width: 650px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 25px;
}

.hero-title span {
  color: var(--primary-color);
}

.hero-text {
  font-size: 1.1rem;
  margin-bottom: 40px;
  opacity: 0.95;
}

.cta-button {
  display: inline-block;
  background: var(--gradient);
  color: var(--light-text);
  padding: 15px 35px;
  border-radius: 30px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 10px 20px rgba(255, 51, 102, 0.3);
  transition: all 0.3s ease;
}

.cta-button:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(255, 51, 102, 0.4);
  color: var(--light-text);
}

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

.section-title {
  text-align: center;
  font-size: 2.2rem;
  color: var(--dark-bg);
  margin-bottom: 20px;
  font-weight: 700;
}

.section-subtitle {
  text-align: center;
  color: var(--primary-color);
  font-size: 1.2rem;
  margin-bottom: 60px;
  font-weight: 500;
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.feature-card {
  background-color: #fff;
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--secondary-color);
}

/* Advantages Section */
.advantages {
  padding: 100px 0;
  background-color: var(--dark-bg);
  color: var(--light-text);
}

.advantages .section-title {
  color: var(--light-text);
}

.advantages .section-subtitle {
  color: var(--accent-color);
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.advantage-icon {
  width: 50px;
  height: 50px;
  flex-shrink: 0;
}

.advantage-content h3 {
  margin-bottom: 10px;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary-color);
}

/* CTA Section */
.cta-section {
  padding: 80px 0;
  text-align: center;
}

.cta-text {
  margin-bottom: 40px;
  max-width: 700px;
  margin: 0 auto 40px;
}

.cta-text h2 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

/* Footer */
.footer {
  background-color: var(--dark-bg);
  color: var(--light-text);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-branding {
  display: flex;
  flex-direction: column;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.footer-logo svg {
  width: 40px;
  height: 40px;
}

.footer-logo span {
  color: var(--light-text);
  font-size: 1.2rem;
  font-weight: 700;
}

.footer-menu h4 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--primary-color);
}

.footer-menu ul {
  list-style: none;
}

.footer-menu li {
  margin-bottom: 10px;
}

.footer-menu a {
  color: var(--light-text);
  opacity: 0.8;
}

.footer-menu a:hover {
  opacity: 1;
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Responsive */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.8rem;
  }
  
  .advantage-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: block;
  }
  
  .nav-list {
    display: none;
    flex-direction: column;
    width: 100%;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--dark-bg);
    padding: 20px;
    gap: 15px;
  }
  
  .nav-list.active {
    display: flex;
  }
  
  .hero {
    padding: 120px 0 80px;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .feature-cards {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.8rem;
  }
  
  .cta-button {
    padding: 12px 25px;
  }
}