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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background: #0b1220;
  color: #e5e7eb;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 15, 28, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  gap: 20px;
}

.logo {
  font-size: 28px;
  color: #38bdf8;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.nav-links a {
  text-decoration: none;
  color: #f8fafc;
  font-size: 15px;
  transition: 0.3s ease;
}

.nav-links a:hover {
  color: #38bdf8;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(rgba(3, 7, 18, 0.72), rgba(3, 7, 18, 0.82)),
    url("https://images.unsplash.com/photo-1517048676732-d65bc937f952?auto=format&fit=crop&w=1600&q=80")
    center/cover no-repeat;
}

.hero-content {
  max-width: 800px;
  padding: 80px 0;
}

.hero-tag {
  display: inline-block;
  margin-bottom: 18px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: #7dd3fc;
  border: 1px solid rgba(125, 211, 252, 0.2);
  font-size: 14px;
  letter-spacing: 0.8px;
}

.hero h2 {
  font-size: 52px;
  line-height: 1.15;
  margin-bottom: 20px;
  color: #ffffff;
}

.hero-text {
  font-size: 18px;
  color: #d1d5db;
  max-width: 700px;
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
  transition: 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #0ea5e9, #2563eb);
  color: white;
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
}

.btn-secondary {
  border: 1px solid #38bdf8;
  color: #38bdf8;
  background: transparent;
}

.btn-secondary:hover {
  background: #38bdf8;
  color: #0f172a;
}

.section {
  padding: 90px 0;
}

.dark-section {
  background: #111827;
}

.section-title {
  text-align: center;
  font-size: 38px;
  color: #ffffff;
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: #9ca3af;
  max-width: 760px;
  margin: 0 auto 45px;
  font-size: 17px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: linear-gradient(180deg, #172033, #111827);
  padding: 30px 24px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: 0.35s ease;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
}

.card:hover {
  transform: translateY(-8px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.28);
}

.card-icon {
  font-size: 34px;
  margin-bottom: 16px;
}

.card h3 {
  color: #ffffff;
  margin-bottom: 12px;
  font-size: 22px;
}

.card p {
  color: #cbd5e1;
  font-size: 15px;
}

.why-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
  margin-top: 25px;
}

.why-item {
  background: #111827;
  padding: 28px 24px;
  border-left: 4px solid #38bdf8;
  border-radius: 14px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.why-item h3 {
  color: #fff;
  margin-bottom: 10px;
}

.why-item p {
  color: #cbd5e1;
}

.about-box {
  max-width: 850px;
  margin: auto;
  text-align: center;
  background: linear-gradient(180deg, #172033, #0f172a);
  padding: 35px;
  border-radius: 18px;
  color: #dbe4ee;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.22);
}

.about-box p {
  margin-bottom: 18px;
  font-size: 17px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 35px;
}

.contact-box {
  background: linear-gradient(180deg, #172033, #111827);
  padding: 30px;
  border-radius: 18px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

.contact-box h3 {
  color: #38bdf8;
  margin-bottom: 16px;
  font-size: 24px;
}

.contact-box p {
  color: #d1d5db;
  margin-bottom: 10px;
  font-size: 16px;
}

.footer {
  text-align: center;
  padding: 24px 15px;
  background: #020617;
  color: #94a3b8;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

@media (max-width: 900px) {
  .navbar {
    flex-direction: column;
  }

  .hero h2 {
    font-size: 38px;
  }

  .nav-links {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .hero h2 {
    font-size: 30px;
  }

  .hero-text {
    font-size: 16px;
  }

  .section-title {
    font-size: 30px;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}