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

body {
    font-family: 'Poppins', sans-serif;
    background: #f4f6f9;
    color: #222;
}

.grades-section {
    padding: 80px 20px;
}

.container {
    max-width: 1100px;
    margin: auto;
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 50px;
    color: #0a5222;
    position: relative;
}

.section-title::after {
    content: "";
    width: 60px;
    height: 3px;
    background: #fd5906;
    display: block;
    margin: 10px auto 0;
}

.table-wrapper {
    overflow-x: auto;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.grades-table {
    width: 100%;
    border-collapse: collapse;
}

.grades-table thead {
    background: #fd5906;
    color: #fff;
}

.grades-table th {
    padding: 18px;
    text-align: left;
    font-weight: 600;
    font-size: 16px;
}

.grades-table td {
    padding: 20px 18px;
    border-bottom: 1px solid #eee;
    vertical-align: middle;
    font-weight: 500;
}

.grades-table tbody tr:hover {
    background: #f1f7ff;
    transition: 0.3s ease;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    margin: 4px 6px 4px 0;
    background: #e6f0ff;
    color: #fd5906;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    transition: 0.3s ease;
    cursor: pointer;
}

.badge:hover {
    background: #f97432;
    color: #fff;
    transform: translateY(-2px);
}

/* Responsive */

@media (max-width: 768px) {
    .section-title {
        font-size: 24px;
    }

    .grades-table th, 
    .grades-table td {
        padding: 14px;
        font-size: 14px;
    }
}