body {
    font-family: Arial, sans-serif;
    background-color: #eee;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 650px;
    margin: 0 auto;
}

/* Tiêu đề */
h2.title {
    text-align: center;
    font-weight: bold;
    margin-bottom: 15px;
}

/* Bảng sự kiện */
.event-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    margin-bottom: 30px;
}

.event-table th {
    background-color: #0000ff;
    color: white;
    padding: 8px 12px;
    font-size: 13px;
}

.event-table td {
    padding: 8px 12px;
    font-size: 13px;
    border-bottom: 1px solid #ddd;
}

.event-table tr:nth-child(even) { background-color: #e8e8e8; }
.event-table tr:nth-child(odd) { background-color: #f9f9f9; }

/* Form Card Đăng ký */
.form-card {
    background-color: #fff;
    padding: 20px 25px;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.2);
    max-width: 400px;
    margin: 0 auto;
}

.form-card h3 {
    text-align: center;
    color: #2c3e50;
    margin-top: 0;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    font-weight: bold;
    font-size: 12px;
    margin-bottom: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
    font-size: 12px;
}

.form-group textarea {
    height: 60px;
    resize: vertical;
}

.btn-submit {
    width: 100%;
    background-color: #3498db;
    color: white;
    border: none;
    padding: 9px;
    font-size: 13px;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
}

.btn-submit:hover {
    background-color: #2980b9;
}