* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #1f2a44;
  background: #f8fbff;
}

html {
  scroll-behavior: smooth;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.hero {
  background: linear-gradient(135deg, #ffffff 0%, #eef6ff 100%);
  padding: 80px 0 60px;
  text-align: center;
  border-bottom: 1px solid #d9e7f5;
}

.hero h1 {
  margin: 0;
  font-size: 2.8rem;
  color: #0c2d6b;
}

.subtitle {
  font-size: 1.2rem;
  color: #3b5b8a;
  margin-top: 15px;
  margin-bottom: 30px;
}

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

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.2s ease;
}

.btn.primary {
  background: #0c5adb;
  color: white;
}

.btn.primary:hover {
  background: #0947ad;
}

.btn.secondary {
  background: white;
  color: #0c5adb;
  border: 1px solid #0c5adb;
}

.btn.secondary:hover {
  background: #eef5ff;
}

.section {
  padding: 60px 0;
}

.section.alt {
  background: #ffffff;
}

.section h2 {
  font-size: 2rem;
  color: #0c2d6b;
  margin-bottom: 20px;
}

.architecture-image {
  width: 100%;
  max-width: 950px;
  border-radius: 14px;
  box-shadow: 0 8px 30px rgba(12, 45, 107, 0.12);
  margin-top: 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.card {
  background: white;
  border: 1px solid #dce8f5;
  border-radius: 12px;
  padding: 22px;
  box-shadow: 0 4px 14px rgba(10, 40, 90, 0.05);
}

.clean-list {
  padding-left: 20px;
}

.clean-list li {
  margin-bottom: 12px;
}

.metric-box {
  background: white;
  border: 1px solid #dce8f5;
  border-radius: 12px;
  padding: 25px;
  margin-top: 20px;
  box-shadow: 0 4px 14px rgba(10, 40, 90, 0.05);
}

pre {
  background: #f4f8fc;
  padding: 15px;
  border-radius: 8px;
  overflow-x: auto;
  font-size: 0.9rem;
  border-left: 4px solid #0c5adb;
}

.footer {
  background: #0c2d6b;
  color: white;
  text-align: center;
  padding: 25px 0;
  margin-top: 30px;
}