body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: #2c3e50;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline-block;
    margin: 0 15px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: 20px auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    /* allow main to grow and fill available vertical space without forcing overflow */
    flex: 1;
    min-height: 0;
}

h2 {
    color: #2c3e50;
}

footer {
    background: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 15px 0;
    width: 100%;
}

/* Delete Data form styles */
.form-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

input[type="email"], textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button.btn-delete {
    background: #c0392b;
    color: #fff;
    padding: 10px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button.btn-delete:hover {
    background: #a93226;
}

.note {
    margin-top: 12px;
    font-size: 0.95rem;
}

.small {
    color: #666;
    font-size: 0.9rem;
}