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

body {
  background: #0f172a;
  color: white;
  line-height: 1.6;
}

/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 50px;
  background: #111827;
  position: sticky;
  top: 0;
}

.logo {
  font-size: 20px;
  font-weight: bold;
  color: #38bdf8;
}

nav a {
  color: white;
  margin-left: 20px;
  text-decoration: none;
  transition: 0.3s;
}

nav a:hover {
  color: #38bdf8;
}

/* HERO */
.hero {
  text-align: center;
  padding: 120px 20px;
  background: linear-gradient(135deg, #1e3a8a, #0f172a);
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  max-width: 600px;
  margin: auto;
  margin-bottom: 30px;
  color: #cbd5e1;
}

button {
  padding: 12px 25px;
  border: none;
  background: #38bdf8;
  color: black;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: #0ea5e9;
  transform: scale(1.05);
}

/* SECTIONS */
.section {
  padding: 80px 20px;
  text-align: center;
}

.section h2 {
  font-size: 32px;
  margin-bottom: 20px;
  color: #38bdf8;
}

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: auto;
}

.card {
  background: #1e293b;
  padding: 30px;
  border-radius: 12px;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-10px);
  background: #334155;
}

/* PROJECTS */
.project-box {
  background: #1e293b;
  margin: 15px auto;
  padding: 20px;
  max-width: 600px;
  border-radius: 10px;
  transition: 0.3s;
}

.project-box:hover {
  transform: scale(1.03);
}

/* CONTACT */
.contact {
  background: #111827;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  background: #0b1220;
  color: #94a3b8;
}