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


.main-container {
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f4f6f8;
}


.box {
    height: 85%;
    width: 80%;
    display: flex;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    background-color: #ffffff;
}

.left-container {
    width: 30%;
    background-color: #2d3748;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}


.std-list {
    width: 90%;
    height: 90%;
    background-color: #edf2f7;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 15px;
    border-radius: 12px;
    overflow-y: auto;
}


.stds {
    width: 100%;
    background-color: #ffffff;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    color: #2d3748;
    text-align: left;
    padding-left: 15px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.stds:hover {
    background-color: #e2e8f0;
    transform: translateX(5px);
}
.stds:active {
    background-color: #2d3748;
    color: white;
}


.right-container {
    flex: 1;
    background-color: #f7fafc;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    padding: 25px;
    overflow-y: auto;
    gap: 15px;
}
.right-container h3 {
    color: #2b6cb0;
    font-size: 26px;
    font-style: italic;
    text-decoration: underline;
}



.report-card {
    width: 95%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
}

/* Main table */
.report-card table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 25px;
}


.report-card th, .report-card td {
    padding: 12px 10px;
    text-align: center;
    border-bottom: 1px solid #cbd5e0;
}


.report-card th {
    background-color: #4a5568;
    color: #ffffff;
    font-weight: 600;
}

/* Alternate row color */
.report-card tr:nth-child(even) {
    background-color: #f1f5f9; /* light gray */
}

.report-card tr:hover {
    background-color: #e2e8f0;
}


.report-card table .last-table th{
    background-color: #2b6cb0; /* nice blue */
    color: #ffffff;
    width: 50%;
}

.report-card table .last-table td {
    font-weight: bold;
}

/* Scrollbar styling for student list */
.std-list::-webkit-scrollbar {
    width: 6px;
}

.std-list::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 10px;
}

.std-list::-webkit-scrollbar-thumb {
    background: #a0aec0;
    border-radius: 10px;
}




.default-view {
    height: 100%;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.default-view h1 {
    color: #2d3748;
    text-align: center;
    line-height: 50px;
}


.active {
    background-color: #2d3748;
    color: white;
}