* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

h1 {
    text-align: center;
    color: #333;
    margin-bottom: 10px;
    font-size: 28px;
}

.subtitle {
    text-align: center;
    color: #999;
    margin-bottom: 30px;
    font-size: 14px;
}

form {
    display: flex;
    flex-direction: column;
}

label {
    margin-top: 15px;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

input[type="email"],
input[type="password"] {
    margin-top: 6px;
    padding: 12px 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="email"]:focus,
input[type="password"]:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

button[type="submit"] {
    margin-top: 20px;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

button[type="submit"]:active {
    transform: translateY(0);
}

#melding {
    margin-top: 15px;
    padding: 12px;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
    display: none;
}

#melding:not(:empty) {
    display: block;
}

#melding[style*="color: green"] {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

#melding[style*="color: red"] {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.links {
    margin-top: 25px;
    text-align: center;
}

.links p {
    margin: 0;
    color: #666;
    font-size: 14px;
}

.links a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.links a:hover {
    color: #764ba2;
    text-decoration: underline;
}

@media (max-width: 480px) {
    .container {
        padding: 30px 20px;
    }

    h1 {
        font-size: 24px;
    }
}