:root {
   
    --primary-color: #3a5a40;
    --secondary-color: #f8f9fa;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --border-color: #dee2e6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* margin-bottom: 30px; */
    /* padding-bottom: 15px; */
    /* border-bottom: 1px solid var(--border-color); */
}

.header h1 {
    color: var(--primary-color);
    font-size: 28px;
}

.header h1 i {
    margin-right: 10px;
}

.date-display {
    font-size: 16px;
    color: #6c757d;
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.class-selector {
    display: flex;
    align-items: center;
    gap: 10px;
}

.class-selector label {
    font-weight: 500;
}

.class-selector select {
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: white;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn i {
    font-size: 14px;
}

.btn.primary {
    background-color: var(--primary-color);
    color: white;
}

.btn.primary:hover {
    background-color: #3a5bef;
}

.attendance-table-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
}

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

.attendance-table th,
.attendance-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.attendance-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 500;
}

.attendance-table tr:hover {
    background-color: rgba(74, 107, 255, 0.05);
}

.status-select {
    padding: 6px 10px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background-color: white;
}

.status-present {
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
}

.status-absent {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.status-late {
    background-color: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
}

.action-btn {
    padding: 5px 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-right: 5px;
}

.edit-btn {
    background-color: var(--warning-color);
    color: white;
}

.delete-btn {
    background-color: var(--danger-color);
    color: white;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 25px;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    position: relative;
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    color: #6c757d;
}

.close:hover {
    color: var(--dark-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .controls {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .attendance-table th,
    .attendance-table td {
        padding: 8px 10px;
    }
}