:root {
    --primary-blue: #003d82;
    --primary-orange: #f37021;
    --light-blue: #e6f0ff;
    --light-orange: #fff3e6;
    --dark-gray: #333333;
    --medium-gray: #666666;
    --light-gray: #f5f5f5;
    --border-color: #ddd;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
}

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

body {
    font-family: 'Roboto', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--light-gray);
}

.navbar {
    background-color: white;
    padding: 0.5rem 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border-bottom: 2px solid var(--primary-blue);
}

.navbar-brand {
    display: flex;
    align-items: center;
    padding: 0;
}

.navbar-brand img {
    height: 55px;
}

.navbar-logo {
    height: 55px;
    width: auto;
    object-fit: contain;
    max-width: 200px;
}

.navbar-light .navbar-nav .nav-link {
    color: var(--dark-gray);
    padding: 0.6rem 1rem;
    font-weight: 400;
}

.navbar-light .navbar-nav .nav-link:hover {
    color: var(--primary-orange);
}

.navbar-light .navbar-toggler {
    border-color: var(--primary-blue);
}

.navbar-light .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 61, 130, 0.75)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.main-content {
    padding: 1.5rem;
    min-height: calc(100vh - 70px);
}

.card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: var(--primary-blue);
    color: white;
    padding: 1rem 1.25rem;
    border-radius: 8px 8px 0 0;
    font-weight: 500;
    font-size: 1.1rem;
}

.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
    padding: 0.6rem 1.5rem;
    font-weight: 500;
}

.btn-primary:hover {
    background-color: #002b5c;
    border-color: #002b5c;
}

.btn-orange {
    background-color: var(--primary-orange);
    border-color: var(--primary-orange);
    color: white;
    padding: 0.6rem 1.5rem;
    font-weight: 500;
}

.btn-orange:hover {
    background-color: #d65a0f;
    border-color: #d65a0f;
    color: white;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
}

.form-control, .form-select {
    padding: 0.6rem 0.75rem;
    font-size: 15px;
    border-color: var(--border-color);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(0,61,130,0.15);
}

.required::after {
    content: " *";
    color: var(--danger);
}

table.dataTable {
    border-collapse: collapse;
}

table.dataTable thead th {
    background-color: var(--light-blue);
    color: var(--primary-blue);
    font-weight: 500;
    padding: 0.8rem;
    border-bottom: 2px solid var(--primary-blue);
    text-align: center;
}

table.dataTable tbody td {
    padding: 0.8rem;
    vertical-align: middle;
    text-align: center;
}

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

.student-photo {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.photo-placeholder {
    width: 50px;
    height: 50px;
    background-color: var(--light-gray);
    border: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--medium-gray);
    font-size: 0.75rem;
    border-radius: 4px;
    cursor: pointer;
}

.badge {
    padding: 0.4rem 0.8rem;
    font-weight: 500;
    font-size: 0.85rem;
    min-width: 50px;
    display: inline-block;
    text-align: center;
}

.badge.bg-verified {
    background-color: var(--success);
}

.badge.bg-unverified {
    background-color: var(--warning);
    color: var(--dark-gray);
}

/* Modal button consistent height */
.modal-footer .btn {
    min-height: 42px;
    padding: 0.6rem 1.5rem;
}

/* Badge status with consistent height */
.badge-status {
    min-height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.stats-card {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
    min-height: 120px;
}

.stats-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-card p {
    color: var(--medium-gray);
    margin-bottom: 0;
    font-size: 1rem;
}

.stats-card.blue {
    border-left: 4px solid var(--primary-blue);
}

.stats-card.orange {
    border-left: 4px solid var(--primary-orange);
}

.stats-card.green {
    border-left: 4px solid var(--success);
}

.stats-card.red {
    border-left: 4px solid var(--danger);
}

.toast-container {
    z-index: 9999;
}

.toast-header.bg-success {
    background-color: var(--success);
}

.toast-header.bg-error {
    background-color: var(--danger);
}

.toast-header.bg-warning {
    background-color: var(--warning);
}

.toast-header.bg-info {
    background-color: var(--info);
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-orange) 100%);
}

.login-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    padding: 2.5rem;
    width: 100%;
    max-width: 450px;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo img {
    max-width: 200px;
    height: auto;
}

.login-title {
    text-align: center;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.modal-header {
    background-color: var(--primary-blue);
    color: white;
}

.modal-header .btn-close {
    filter: invert(1);
}

.cropper-container {
    max-height: 400px;
    margin: 1rem 0;
}

input[type="file"] {
    padding: 0.5rem;
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .stats-card {
        min-height: 100px;
        padding: 1rem;
    }
    
    .stats-card h3 {
        font-size: 1.5rem;
    }
    
    .navbar-collapse {
        margin-top: 1rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .navbar-brand img {
        height: 45px;
    }
    
    .navbar-logo {
        height: 45px;
    }
}

@media (max-width: 576px) {
    .login-card {
        margin: 1rem;
        padding: 1.5rem;
    }
    
    .stats-card h3 {
        font-size: 1.25rem;
    }
}

.dataTables_wrapper .dataTables_filter input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.dataTables_wrapper .dataTables_length select {
    padding: 0.5rem 2rem 0.5rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.page-link {
    color: var(--primary-blue);
}

.page-link:hover {
    color: var(--primary-orange);
    background-color: var(--light-orange);
}

.page-item.active .page-link {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.alert {
    border-radius: 8px;
    padding: 1rem 1.25rem;
}

.breadcrumb {
    background-color: transparent;
    margin-bottom: 1rem;
}

.breadcrumb-item a {
    color: var(--primary-blue);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--primary-orange);
}

.table-filters input,
.table-filters select {
    font-size: 0.875rem;
    padding: 0.4rem;
}

/* Photo Upload Drag and Drop */
.photo-upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 2rem 1rem;
    text-align: center;
    background-color: var(--light-gray);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.photo-upload-zone:hover {
    border-color: var(--primary-blue);
    background-color: var(--light-blue);
}

.photo-upload-zone.drag-over {
    border-color: var(--primary-orange);
    background-color: var(--light-orange);
    border-width: 3px;
}

.photo-upload-zone i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.photo-upload-zone p {
    margin: 0.5rem 0 0 0;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.photo-upload-zone input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}

/* Uniform Action Buttons */
.action-btn {
    min-width: 120px;
    padding: 0.6rem 1.5rem;
    font-weight: 500;
}


/* ==========================================
   ADDITIONAL CSS FOR HOUSE COLUMN AND BULK ACTIONS
   Note: These styles are already included in the updated
   admin_students.php and school_students.php files.
   This file is for reference only.
   ========================================== */

/* House Badge Styling */
.house-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Color-coded house badges */
.house-red { 
    background-color: #dc3545; 
    color: white; 
}

.house-blue { 
    background-color: #0d6efd; 
    color: white; 
}

.house-green { 
    background-color: #198754; 
    color: white; 
}

.house-yellow { 
    background-color: #ffc107; 
    color: #000; 
}

.house-orange { 
    background-color: #fd7e14; 
    color: white; 
}

.house-purple { 
    background-color: #6f42c1; 
    color: white; 
}

.house-pink { 
    background-color: #d63384; 
    color: white; 
}

.house-cyan { 
    background-color: #0dcaf0; 
    color: #000; 
}

.house-brown { 
    background-color: #8B4513; 
    color: white; 
}

.house-gray, .house-grey { 
    background-color: #6c757d; 
    color: white; 
}

.house-default { 
    background-color: #e9ecef; 
    color: #000; 
    border: 1px solid #dee2e6; 
}

/* Bulk Actions Bar */
.bulk-actions-bar {
    background-color: var(--light-blue);
    border: 1px solid var(--primary-blue);
    border-radius: 8px;
    padding: 0.75rem;
    margin-bottom: 1rem;
    display: none;
}

.bulk-actions-bar.show {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Center Alignment for Table Cells */
#studentsTable thead tr th {
    text-align: center;
}

#studentsTable tbody td {
    text-align: center;
}

/* Center aligned images */
.student-photo {
    display: block;
    margin: 0 auto;
}

.photo-placeholder {
    margin: 0 auto;
}

/* Center aligned action buttons */
.action-buttons {
    justify-content: center;
}

/* Additional responsive styles for mobile */
@media (max-width: 768px) {
    .bulk-actions-bar {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .bulk-actions-bar button {
        margin: 0.25rem;
    }
    
    .house-badge {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }
}