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

body {
  background: #f5f7fb;
  color: #222;
}

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

/* NAVBAR */
.navbar {
  background: #fff;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid #eee;
}

.navbar a {
  margin: 0 10px;
  text-decoration: none;
  color: #4f46e5;
  font-weight: bold;
}

/* HERO */
.hero {
  text-align: center;
  padding: 60px 20px;
}

.hero h1 {
  font-size: 32px;
}

.hero p {
  margin-top: 10px;
  color: #555;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

/* CARD */
.card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0,0,0,0.05);
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-5px);
}

/* BUTTON */
button {
  background: #4f46e5;
  color: white;
  border: none;
  padding: 12px;
  cursor: pointer;
  border-radius: 6px;
  font-size: 16px;
}

button:hover {
  background: #4338ca;
}

/* INPUT */
input, select {
  width: 100%;
  padding: 12px;
  margin-top: 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
}

/* RESULT BOX */
.result {
  margin-top: 15px;
  background: #f0f0f0;
  padding: 15px;
  border-radius: 8px;
}

/* LINKS */
a {
  color: #4f46e5;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* FOOTER */
.footer {
  text-align: center;
  padding: 20px;
  color: #777;
}

/* MOBILE */
@media(max-width:768px) {
  .hero h1 {
    font-size: 24px;
  }
}