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

:root {
    --primary-color: #1d4ed8;
    --secondary-color: #3b82f6;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #8b5cf6;
    --dark-color: #1e293b;
    --light-gray: #f1f5f9;
    --medium-gray: #cbd5e1;
    --text-color: #334155;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--light-gray);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 15px; /* Improved readability */
}

/* Header */
.dashboard-header {
    background-color: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 50px;
    width: auto;
}

.logo-section h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.user-section {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    position: relative;
}

/* Compact profile trigger */
.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    background-color: #eff6ff;
    cursor: pointer;
    transition: all 0.2s ease;
}

.user-profile:hover {
    background-color: #dbeafe;
    transform: translateY(-1px);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.admin-name {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

.admin-role {
    font-size: 0.75rem;
    color: var(--medium-gray);
}

.user-chevron {
    color: var(--medium-gray);
    font-size: 0.7rem;
}

/* Dropdown menu */
.user-menu {
    position: absolute;
    top: 115%;
    right: 0;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 15px 30px rgba(15, 23, 42, 0.15);
    width: 260px;
    padding: 0.75rem 0;
    display: none;
    z-index: 200;
}

.user-menu.open {
    display: block;
}

.user-menu-arrow {
    position: absolute;
    top: -6px;
    right: 24px;
    width: 12px;
    height: 12px;
    background: #fff;
    transform: rotate(45deg);
    box-shadow: -2px -2px 5px rgba(15, 23, 42, 0.08);
}

.user-menu-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem 0.5rem 1rem;
}

.user-menu-avatar {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    flex-shrink: 0;
}

.user-menu-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.user-menu-name {
    font-weight: 600;
    color: var(--dark-color);
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-menu-email {
    font-size: 0.75rem;
    color: var(--medium-gray);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-menu-actions {
    padding: 0.25rem 0.5rem 0.5rem 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.user-menu-btn {
    width: 100%;
    border: none;
    background: transparent;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-color);
    transition: background 0.15s ease, transform 0.15s ease;
}

.user-menu-btn i {
    font-size: 0.95rem;
    color: var(--primary-color);
}

.user-menu-btn.logout i {
    color: var(--danger-color);
}

.user-menu-btn:hover {
    background: #eff6ff;
    transform: translateY(-1px);
}

/* old logout button styles kept for compatibility, but not visible in header */
.logout-btn {
    padding: 0.625rem 1.25rem;
    background-color: var(--danger-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    background-color: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Main Layout */
.dashboard-main {
    display: flex;
    width: 100%;
    min-height: calc(100vh - 82px);
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: white;
    box-shadow: var(--shadow);
    padding: 2rem 0;

    position: sticky;
    top: 82px; /* height of header */
    height: calc(100vh - 82px);
    overflow-y: auto;
}


.sidebar-nav {
    display: flex;
    flex-direction: column;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

.nav-item.active {
    background-color: #dbeafe;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    font-weight: 600;
}

.nav-item i {
    font-size: 1.25rem;
}

/* Dashboard Content */
.dashboard-content {
    flex: 1;
    padding: 2rem 2rem 0 2rem;
}

/* Statistics Cards */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: white;
}

.stat-icon.blue {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
}

.stat-icon.green {
    background: linear-gradient(135deg, #10b981, #059669);
}

.stat-icon.purple {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.stat-icon.orange {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}
.stat-icon.darkorange {
    background: linear-gradient(135deg, #e08e00, #a75a01);
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
}

.stat-info p {
    color: var(--text-color);
    font-size: 0.875rem;
}

/* Filters Section */
.filters-section {
    background-color: white;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.search-box {
    position: relative;
    margin-bottom: 1rem;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--medium-gray);
}

.search-box input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-controls {
    display: flex;
    gap: 1rem;
    align-items: center; /* Ensure vertical alignment */
}

/* Override custom select width for horizontal layout */
.filter-controls .custom-select-container {
    width: auto;
    flex: 1; /* Allow them to grow/shrink equally */
    margin-top: 0; /* Remove top margin for alignment */
}

.filter-controls button {
    white-space: nowrap; /* Prevent button text wrapping */
}

.filter-select {
    padding: 0.75rem 48px 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    background-color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    
    /* Custom Chevron Arrow */
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23334155' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7' /%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
}

/* Custom Dropdown List Design */
select option {
    padding: 12px;
    background: white;
    color: var(--text-color);
    font-weight: 500;
}

select option:hover {
    background: var(--light-gray); /* Often not supported but worth adding */
    color: var(--primary-color);
}

select option:checked {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.refresh-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.refresh-btn:hover {
    background-color: #1e40af;
    transform: translateY(-2px);
}

/* Table Container */
.table-container {
    background-color: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.table-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

.export-btn {
    padding: 0.625rem 1.25rem;
    background-color: var(--success-color);
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.export-btn:hover {
    background-color: #059669;
    transform: translateY(-2px);
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
}

.loading-spinner i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.loading-spinner p {
    color: var(--text-color);
    font-size: 1.125rem;
}

/* Table */
.table-wrapper {
    overflow-x: auto;
}

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

.students-table thead {
    background-color: var(--light-gray);
}

.students-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--dark-color);
    white-space: nowrap;
}

.students-table td {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.students-table tbody tr {
    transition: all 0.3s ease;
}

.students-table tbody tr:hover {
    background-color: var(--light-gray);
}

/* Action buttons in table */
.students-table td:last-child {
    white-space: nowrap;
}

.action-btn-grid {
    display: flex;
    flex-direction: column;
    gap: 0.4rem; /* vertical space between rows */
}

.action-row {
    display: flex;
    gap: 0.4rem; /* horizontal space between buttons */
}

.action-btn {
    padding: 0.5rem 0.9rem;
    border: none;
    border-radius: 999px; /* pill shape */
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-right: 0;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.action-btn i {
    font-size: 0.8rem;
}

.view-btn {
    background: linear-gradient(135deg, #e0f2fe, #bfdbfe);
    color: var(--primary-color);
}

.view-btn:hover {
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
    color: white;
    transform: translateY(-1px);
}

.edit-btn {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
}

.edit-btn:hover {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    transform: translateY(-1px);
}

.delete-btn {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #b91c1c;
}

.delete-btn:hover {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
    color: white;
    transform: translateY(-1px);
}

/* No Data */
.no-data {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    color: var(--text-color);
}

.no-data i {
    font-size: 4rem;
    color: var(--medium-gray);
    margin-bottom: 1rem;
}

.no-data p {
    font-size: 1.125rem;
    color: var(--text-color);
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background-color: white;
    border-radius: 0.75rem;
    margin-top: 1.5rem;
    box-shadow: var(--shadow);
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.pagination-info {
    color: var(--text-color);
    font-size: 0.875rem;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    background-color: white;
    color: var(--text-color);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: 0.25rem;
}

.page-number {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    background-color: white;
    color: var(--text-color);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 40px;
    text-align: center;
}

.page-number:hover {
    background-color: var(--light-gray);
}

.page-number.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.items-per-page {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
    font-size: 0.875rem;
}

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

.modal.active {
    display: flex;
}

.modal-content {
    background-color: white;
    border-radius: 0.75rem;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

/* Marksheet modal tweaks */
.marksheet-modal-content {
    max-width: 900px;
}

.marksheet-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.msd-form-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.msd-form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--dark-color);
}

.msd-form-group input {
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.msd-subjects-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 0.5rem 0 1rem 0;
}

.msd-subject-item {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) auto;
    gap: 0.75rem;
    align-items: end;
}

.msd-remove-subject-btn {
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: 0.5rem;
    background-color: #fee2e2;
    color: var(--danger-color);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
}

.msd-remove-subject-btn:hover {
    background-color: var(--danger-color);
    color: #fff;
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-color);
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0.25rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: var(--danger-color);
    background-color: var(--light-gray);
    border-radius: 0.375rem;
}

.modal-body {
    padding: 1.5rem;
}

.detail-row {
    display: flex;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--dark-color);
    width: 150px;
}

.detail-value {
    color: var(--text-color);
    flex: 1;
}

/* Responsive Design */

/* Large Tablets and Small Laptops (1024px and below) */
@media (max-width: 1024px) {
    .dashboard-main {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        position: static;
        height: auto;
        padding: 0;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    }

    .sidebar-nav {
        flex-direction: row;
        overflow-x: auto;
        padding: 0.5rem 0;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .sidebar-nav::-webkit-scrollbar {
        height: 4px;
    }

    .sidebar-nav::-webkit-scrollbar-thumb {
        background: var(--medium-gray);
        border-radius: 4px;
    }

    .nav-item {
        flex-direction: column;
        min-width: 100px;
        text-align: center;
        border-left: none;
        border-bottom: 3px solid transparent;
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }

    .nav-item.active {
        border-left: none;
        border-bottom-color: var(--primary-color);
    }

    .nav-item i {
        font-size: 1.125rem;
    }

    .stats-container {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .modal-content {
        width: 95%;
        max-width: 700px;
    }

    .marksheet-modal-content {
        max-width: 800px;
    }

    .marksheet-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

/* Tablets (768px and below) */
@media (max-width: 768px) {
    .header-content {
        padding: 1rem;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .logo-section {
        flex: 1;
        min-width: 200px;
    }

    .logo-section h1 {
        font-size: 1.125rem;
    }

    .logo {
        height: 40px;
    }

    .user-section {
        gap: 0.75rem;
    }

    .admin-name {
        font-size: 0.875rem;
    }

    .logout-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .dashboard-content {
        padding: 1rem;
    }

    .stats-container {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .stat-info h3 {
        font-size: 1.5rem;
    }

    .stat-info p {
        font-size: 0.8125rem;
    }

    .filters-section {
        padding: 1rem;
    }

    /* .filter-controls, .filter-select, .refresh-btn styles removed to keep horizontal layout at 768px */

    .table-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .table-header h2 {
        font-size: 1.25rem;
    }

    .export-btn {
        width: 100%;
        justify-content: center;
    }

    .students-table {
        font-size: 0.875rem;
    }

    .students-table th,
    .students-table td {
        padding: 0.75rem 0.5rem;
    }

    .students-table th {
        font-size: 0.8125rem;
    }

    .action-btn {
        padding: 0.4rem 0.7rem;
        font-size: 0.75rem;
        margin-right: 0.25rem;
        margin-bottom: 0.25rem;
    }

    .action-btn i {
        font-size: 0.75rem;
    }

    .pagination-container {
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .pagination-info {
        text-align: center;
        font-size: 0.8125rem;
    }

    .pagination-controls {
        justify-content: center;
        flex-wrap: wrap;
    }

    .page-numbers {
        flex-wrap: wrap;
        justify-content: center;
    }

    .pagination-btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.875rem;
    }

    .page-number {
        padding: 0.4rem 0.6rem;
        font-size: 0.875rem;
        min-width: 36px;
    }

    .items-per-page {
        justify-content: center;
        font-size: 0.8125rem;
    }

    .modal-content {
        width: 95%;
        max-height: 85vh;
    }

    .modal-header {
        padding: 1rem;
    }

    .modal-header h2 {
        font-size: 1.25rem;
    }

    .modal-body {
        padding: 1rem;
    }

    .detail-label {
        width: 120px;
        font-size: 0.875rem;
    }

    .detail-value {
        font-size: 0.875rem;
    }

    .marksheet-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .msd-subject-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .logout-modal {
        width: 90%;
        max-width: 380px;
    }

    .logout-modal-header {
        padding: 1.25rem;
    }

    .logout-modal-body {
        padding: 1.25rem;
    }

    .logout-modal-footer {
        padding: 0.875rem 1.25rem;
        flex-wrap: wrap;
    }

    .logout-modal-btn {
        flex: 1;
        min-width: 120px;
        justify-content: center;
    }
}

/* Mobile Devices (480px and below) */
@media (max-width: 480px) {
    .header-content {
        padding: 0.75rem;
    }

    .logo-section {
        gap: 0.5rem;
    }

    .logo-section h1 {
        font-size: 1rem;
    }

    .logo {
        height: 35px;
    }

    .user-section {
        gap: 0.5rem;
        width: 100%;
        justify-content: space-between;
    }

    .admin-name {
        font-size: 0.8125rem;
    }

    .logout-btn {
        padding: 0.5rem 0.875rem;
        font-size: 0.8125rem;
    }

    .logout-btn i {
        font-size: 0.875rem;
    }

    .dashboard-content {
        padding: 0.75rem;
    }

    .stats-container {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .stat-card {
        padding: 0.875rem;
        gap: 0.75rem;
    }

    .stat-icon {
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }

    .stat-info h3 {
        font-size: 1.375rem;
    }

    .stat-info p {
        font-size: 0.75rem;
    }

    .filters-section {
        padding: 0.875rem;
        margin-bottom: 1rem;
    }

    .search-box {
        margin-bottom: 0.75rem;
    }

    .search-box input {
        padding: 0.625rem 0.875rem 0.625rem 2.25rem;
        font-size: 0.875rem;
    }

    .search-box i {
        left: 0.875rem;
        font-size: 0.875rem;
    }

    .filter-controls {
        flex-direction: column; /* Stack vertically on mobile */
        gap: 0.75rem;
    }

    .filter-controls .custom-select-container {
        width: 100%;
    }

    .filter-select,
    .refresh-btn {
        width: 100%; /* Full width on mobile */
        padding: 0.625rem 0.875rem;
        font-size: 0.875rem;
    }

    .table-container {
        margin-bottom: 1rem;
    }

    .table-header {
        padding: 0.875rem;
    }

    .table-header h2 {
        font-size: 1.125rem;
    }

    .export-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8125rem;
    }

    .table-wrapper {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .students-table {
        min-width: 800px;
        font-size: 0.8125rem;
    }

    .students-table th,
    .students-table td {
        padding: 0.625rem 0.5rem;
    }

    .students-table th {
        font-size: 0.75rem;
    }

    .action-btn {
        padding: 0.375rem 0.625rem;
        font-size: 0.6875rem;
        gap: 0.25rem;
    }

    .action-btn i {
        font-size: 0.6875rem;
    }

    .loading-spinner {
        padding: 2rem 1rem;
    }

    .loading-spinner i {
        font-size: 2rem;
    }

    .loading-spinner p {
        font-size: 1rem;
    }

    .no-data {
        padding: 2rem 1rem;
    }

    .no-data i {
        font-size: 3rem;
    }

    .no-data p {
        font-size: 1rem;
    }

    .pagination-container {
        padding: 0.875rem;
    }

    .pagination-btn {
        padding: 0.375rem 0.5rem;
        font-size: 0.8125rem;
    }

    .page-number {
        padding: 0.375rem 0.5rem;
        font-size: 0.8125rem;
        min-width: 32px;
    }

    .items-per-page select {
        padding: 0.375rem 0.5rem;
        font-size: 0.8125rem;
    }

    .modal-content {
        width: 95%;
        max-height: 90vh;
        border-radius: 0.5rem;
    }

    .modal-header {
        padding: 0.875rem;
    }

    .modal-header h2 {
        font-size: 1.125rem;
    }

    .close-btn {
        font-size: 1.25rem;
        width: 28px;
        height: 28px;
    }

    .modal-body {
        padding: 0.875rem;
    }

    .detail-row {
        flex-direction: column;
        padding: 0.625rem 0;
        gap: 0.25rem;
    }

    .detail-label {
        width: 100%;
        font-size: 0.8125rem;
        font-weight: 700;
    }

    .detail-value {
        font-size: 0.8125rem;
    }

    .marksheet-modal-content {
        max-width: 95%;
    }

    .marksheet-grid {
        gap: 0.625rem;
    }

    .msd-form-group label {
        font-size: 0.8125rem;
    }

    .msd-form-group input {
        padding: 0.5rem 0.625rem;
        font-size: 0.8125rem;
    }

    .msd-subjects-container {
        gap: 0.625rem;
    }

    .msd-subject-item {
        gap: 0.5rem;
    }

    .msd-remove-subject-btn {
        padding: 0.5rem;
        font-size: 0.875rem;
    }

    .logout-modal {
        width: 92%;
        max-width: 340px;
    }

    .logout-modal-header {
        padding: 1rem;
        gap: 0.5rem;
    }

    .logout-modal-header h3 {
        font-size: 1.125rem;
    }

    .logout-modal-icon {
        font-size: 1.25rem;
    }

    .logout-modal-body {
        padding: 1rem;
    }

    .logout-modal-body p {
        font-size: 0.9375rem;
    }

    .logout-modal-footer {
        padding: 0.75rem 1rem;
        gap: 0.5rem;
    }

    .logout-modal-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
        flex: 1;
        min-width: 100px;
    }
    
    .sidebar-nav {
        overflow-x: hidden;
        justify-content: space-evenly;
    }

    .sidebar .nav-item {
        width: auto;
        min-width: auto;
        flex: 1;
    }

    .sidebar-nav span{
        display: none;
    }
}

/* Extra Small Devices (360px and below) */
@media (max-width: 360px) {
    .logo-section h1 {
        font-size: 0.875rem;
    }

    .logo {
        height: 30px;
    }

    .admin-name {
        display: none;
    }

    .logout-btn {
        padding: 0.5rem;
    }

    .logout-btn span {
        display: none;
    }

    .stat-info h3 {
        font-size: 1.25rem;
    }

    .nav-item {
        min-width: 80px;
        padding: 0.625rem 0.75rem;
    }

    .nav-item span {
        font-size: 0.75rem;
    }

    .modal-content {
        width: 98%;
    }

    .logout-modal {
        width: 95%;
    }

    .logout-modal-footer {
        flex-direction: column;
    }

    .logout-modal-btn {
        width: 100%;
    }
}

/* Custom Logout Confirmation Modal */
.logout-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 10001;
    animation: fadeIn 0.2s ease-out;
}

.logout-modal-overlay.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logout-modal {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    max-width: 400px;
    width: 90%;
    padding: 0;
    animation: slideUp 0.3s ease-out;
    overflow: hidden;
}

.logout-modal-header {
    background: var(--light-gray);
    padding: 1.5rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logout-modal-icon {
    font-size: 1.5rem;
}

.logout-modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.logout-modal-body {
    padding: 1.5rem;
}

.logout-modal-body p {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
}

.logout-modal-footer {
    padding: 1rem 1.5rem;
    background-color: #f8fafc;
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    border-top: 1px solid var(--border-color);
}

.logout-modal-btn {
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.logout-modal-btn-cancel {
    background-color: white;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.logout-modal-btn-cancel:hover {
    background-color: var(--light-gray);
}

.logout-modal-btn-confirm {
    background-color: var(--danger-color);
    color: white;
}

.logout-modal-btn-confirm:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.logout-modal-btn:active {
    transform: translateY(0);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}