:root {
    --primary-color: #000;
    --secondary-color: #02a731;
    --background-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--background-gradient);
    padding: 1rem;
    
}

.unsubscribe-card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    width: 100%;
    max-width: 600px;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.form-header p {
    color: #000;
    font-size: 0.9rem;
    margin:1rem 0;
    text-align:left;
    line-height:1.2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

input, select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input:focus, select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

button[type="submit"] {
    background: var(--secondary-color);
    color: white;
    padding: 1rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    width: 100%;
    transition: background 0.3s ease;
}

button[type="submit"]:hover {
    background: #2980b9;
}

.error-message {
    color: #e74c3c;
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

@media (max-width: 480px) {
    .unsubscribe-card {
        padding: 1.5rem;
    }
}

#message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
    display: none;
}

.success { background: #d4edda; color: #155724; }
.error { background: #f8d7da; color: #721c24; }