body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #ffffff;
  color: #1f1f1f;
}

/* HEADER */
header {
  display: flex;
  justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  background: white;
}

.logo {
  font-weight: bold;
  letter-spacing: 2px;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #333;
  font-size: 14px;
}

/* HERO */
.hero {
  height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #f7f7f7;
  padding: 20px;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 10px;
}

.hero p {
  color: #666;
}

.btn {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 25px;
  background: #111;
  color: white;
  text-decoration: none;
}

/* SECTIONS */
.section {
  padding: 60px 20px;
  text-align: center;
}

.section h2 {
  font-size: 28px;
  margin-bottom: 30px;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 1000px;
  margin: auto;
}

.card {
  padding: 25px;
  border: 1px solid #eee;
  background: #fff;
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

/* FORM */
form {
  max-width: 400px;
  margin: auto;
  display: flex;
  flex-direction: column;
}

input, textarea {
  margin: 10px 0;
  padding: 12px;
  border: 1px solid #ddd;
}

button {
  padding: 12px;
  background: black;
  color: white;
  border: none;
  cursor: pointer;
}

/* FOOTER */
footer {
  padding: 20px;
  background: #f5f5f5;
  margin-top: 40px;
  text-align: center;
}