:root {
      --main-color: #3b66f7;
      --text-color: #333;
      --gray: #666;
      --bg-light: #f8f9fa;
    }

    body {
      margin: 0;
      font-family: 'Segoe UI', sans-serif;
      color: var(--text-color);
      background-color: #fff;
      line-height: 1.6;
    }

    .container {
      max-width: 1140px;
      margin: 0 auto;
      padding: 0 20px;
    }

    header {
      background: white;
      border-bottom: 1px solid #eee;
    }

    .nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 25px 0;
    }

    .logo {
      font-size: 24px;
      font-weight: bold;
    }

    .nav-links a {
      margin-left: 25px;
      text-decoration: none;
      color: var(--text-color);
      font-weight: 500;
    }

    .nav-links a.button {
      background: var(--main-color);
      color: #fff;
      padding: 10px 18px;
      border-radius: 6px;
    }

    .hero {
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      padding: 80px 0;
    }

    .hero-text {
      max-width: 500px;
    }

    .hero-text h1 {
      font-size: 42px;
      margin-bottom: 15px;
    }

    .hero-text p {
      color: var(--gray);
      margin-bottom: 25px;
      font-size: 18px;
    }

    .hero-text button {
      background: var(--main-color);
      color: white;
      padding: 14px 26px;
      border: none;
      font-size: 16px;
      border-radius: 6px;
      cursor: pointer;
    }

    .hero-image img {
      max-width: 100%;
      width: 420px;
    }

    .features {
      background: var(--bg-light);
      padding: 80px 0;
      text-align: center;
    }

    .features h2 {
      font-size: 26px;
      margin-bottom: 40px;
    }

    .feature-cards {
      display: flex;
      justify-content: center;
      gap: 50px;
      flex-wrap: wrap;
    }

    .feature {
      max-width: 260px;
    }

    .feature h3 {
      color: var(--main-color);
      margin-bottom: 10px;
      font-size: 18px;
    }

    .feature p {
      color: var(--gray);
      font-size: 15px;
    }

    @media (max-width: 768px) {
      .hero {
        flex-direction: column;
        text-align: center;
      }

      .nav {
        flex-direction: column;
        align-items: flex-start;
      }

      .nav-links {
        margin-top: 10px;
      }

      .feature-cards {
        flex-direction: column;
        align-items: center;
      }
    }
.how-it-works {
  padding: 80px 0;
  background: #fff;
  text-align: center;
}

.how-it-works h2 {
  font-size: 26px;
  margin-bottom: 40px;
}

.how-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
}

.how-card {
  flex: 1 1 320px;
  max-width: 460px;
  background: #f9f9f9;
  border-radius: 10px;
  padding: 20px;
}

.uptime-list {
  list-style: none;
  padding: 0;
  text-align: left;
  font-size: 18px;
}

.uptime-list li {
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.status {
  font-size: 18px;
}

.status.online {
  color: #28c76f;
}

.advanced-metrics {
  padding: 80px 0;
  background: #f9f9f9;
  text-align: center;
}

.advanced-metrics h2 {
  font-size: 26px;
  margin-bottom: 40px;
}

.metrics-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
}

.metric-card {
  flex: 1 1 320px;
  max-width: 460px;
  background: #fff;
  border-radius: 10px;
  padding: 20px;
}
.site-footer {
  background: #0f172a;
  color: #fff;
  padding: 40px 0;
  font-size: 14px;
}

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

.site-footer h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.site-footer p {
  margin: 0;
  color: #cbd5e1;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 20px;
  margin: 0;
}

.site-footer a {
  color: #93c5fd;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}