:root {
  --main: #0ea5e9;
  --dark: #0f172a;
  --light: #f8fafc;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  background: var(--light);
  color: var(--dark);
  line-height: 1.7;
}

/* HEADER */
.header {
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  color: white;
  text-align: center;
  padding: 60px 20px;
}

.header h1 {
  font-size: 32px;
  margin-bottom: 10px;
}

.header p {
  opacity: 0.9;
}

/* CONTAINER */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 40px 20px;
}

/* BANNER */
.banner img {
  width: 100%;
  border-radius: 14px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.15);
  margin-bottom: 40px;
}

/* ABOUT */
.about h2,
.info h2,
.social h2 {
  font-size: 26px;
  margin-bottom: 15px;
}

.about p {
  margin-bottom: 15px;
}

.features {
  list-style: none;
  margin-top: 15px;
}

.features li {
  margin-bottom: 8px;
}

/* INFO */
.info {
  margin-top: 50px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
  margin-top: 20px;
}

.info-grid h3 {
  margin-bottom: 8px;
}

.info-grid a {
  color: var(--main);
  text-decoration: none;
}

/* SOCIAL */
.social {
  margin-top: 50px;
  text-align: center;
}

.social-links {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 15px;
}

.social-links a {
  padding: 10px 18px;
  border-radius: 30px;
  background: var(--main);
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
}

.social-links a:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(14,165,233,0.4);
}

/* FOOTER */
.footer {
  background: #020617;
  color: #cbd5f5;
  text-align: center;
  padding: 20px;
  margin-top: 60px;
}

/* MOBILE */
@media (max-width: 600px) {
  .header h1 {
    font-size: 24px;
  }
}