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

body {
  background: #0f172a;
  color: #e5e7eb;
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* NAVBAR */
.navbar {
  background: #020617;
  border-bottom: 1px solid #1e293b;
}

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

.logo {
  font-size: 22px;
  font-weight: 700;
  color: #38bdf8;
}

nav a {
  margin-left: 25px;
  font-weight: 500;
}

.btn {
  background: #38bdf8;
  color: #020617;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
}

.btn.big {
  padding: 14px 28px;
  font-size: 16px;
}

/* HERO */
.hero {
  padding: 100px 0;
  text-align: center;
  background: radial-gradient(circle at top, #1e293b, #020617);
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 20px;
}

.hero p {
  max-width: 700px;
  margin: auto;
  margin-bottom: 35px;
  color: #cbd5f5;
}

/* SECTIONS */
.section {
  padding: 80px 0;
}

.section.dark {
  background: #020617;
}

.section h2 {
  text-align: center;
  margin-bottom: 50px;
  font-size: 32px;
}

.center {
  text-align: center;
  max-width: 700px;
  margin: auto;
}

/* GRID */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.card {
  background: #020617;
  border: 1px solid #1e293b;
  padding: 25px;
  border-radius: 12px;
}

/* LIST */
ul {
  list-style: none;
}

ul li {
  margin-bottom: 15px;
  font-size: 16px;
}

/* CONTACT */
.contact {
  background: #020617;
}

.form {
  max-width: 500px;
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

input, textarea {
  padding: 12px;
  border-radius: 6px;
  border: none;
  outline: none;
}

textarea {
  min-height: 120px;
}

/* FOOTER */
.footer {
  text-align: center;
  padding: 25px;
  border-top: 1px solid #1e293b;
  font-size: 14px;
  color: #94a3b8;
}