body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    box-sizing: border-box;
    line-height: 1.6;
    background-color: #f5f5f5;
    color: #333;
}

h1 {
    border-bottom: 3px solid #3498db;
    margin: 0;
}

h2 {
    margin: 0;
}

.card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

a {
    color: #3498db;
    text-decoration: none;
    font-weight: bold;
    display: block;
}

a:hover {
    color: #2980b9;
    text-decoration: underline;
}

input {
    padding: 0.75rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

input:focus {
    border-color: #4a90e2;
    outline: none;
}

button {
    padding: 0.8rem;
    background-color: #4a90e2;
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #357abd;
}