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

body {
    font-family: Arial, sans-serif;
    background-color: #f5f6f8;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 500px;
}

.unsubscribe-card {
    background-color: #ffffff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

h1 {
    font-size: 24px;
    color: #333;
    margin-bottom: 25px;
    text-align: center;
    font-weight: 600;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 6px;
    font-size: 16px;
    color: #333;
}

.required {
    color: #e74c3c;
}

input[type="email"], select, textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    color: #333;
}

input[type="email"]::placeholder, 
select::placeholder,
textarea::placeholder {
    color: #aaa;
}

input[type="email"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #4285f4;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.1);
}

textarea {
    min-height: 100px;
    resize: vertical;
}

.btn-primary {
    background-color: #2962ff;
    color: white;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: 4px;
    padding: 12px;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #1a4fda;
}

.address-info {
    text-align: center;
    margin-top: 16px;
}

.address-info p {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

.error-message {
    color: #e74c3c;
    font-size: 14px;
    margin-top: 5px;
    min-height: 20px;
}

#confirmation-message {
    text-align: center;
}

#confirmation-message h2 {
    color: #28a745;
    margin-bottom: 10px;
    font-size: 20px;
}