/* ============================================
   STUDENT MANAGEMENT - MAC THEME
   Professional, sophisticated design
   ============================================ */

/* Header Section - Glass Morphism */
.student-management-header {
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(37, 99, 235, 0.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    padding: 3rem 0;
}

.student-management-header h1 {
    color: #1e293b;
    font-weight: 700;
    font-size: 2.5rem;
}

.student-management-header .lead {
    color: #64748b;
    font-size: 1.1rem;
}

.student-management-header i.fa-users {
    color: #2563eb;
}

/* Add Student Button - Mac Style */
.btn-add-student {
    background: linear-gradient(145deg, #2563eb 0%, #1e40af 100%);
    border: none;
    color: white;
    padding: 12px 32px;
    border-radius: 12px;
    font-weight: 600;
    box-shadow: 
        0 6px 20px rgba(37, 99, 235, 0.3),
        0 3px 10px rgba(37, 99, 235, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-add-student:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 10px 28px rgba(37, 99, 235, 0.4),
        0 6px 16px rgba(37, 99, 235, 0.3);
    color: white;
}

.btn-add-student:active {
    transform: translateY(0);
}

/* Statistics Cards - Mac Style */
.stat-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 
        0 6px 20px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    height: 100%;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 12px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

/* Individual stat card colors */
.stat-card.blue {
    border-color: rgba(37, 99, 235, 0.2);
    background: linear-gradient(145deg, rgba(219, 234, 254, 0.6) 0%, rgba(239, 246, 255, 0.4) 100%);
}

.stat-card.blue .stat-icon {
    color: #2563eb;
    background: rgba(37, 99, 235, 0.1);
}

.stat-card.green {
    border-color: rgba(5, 150, 105, 0.2);
    background: linear-gradient(145deg, rgba(209, 250, 229, 0.6) 0%, rgba(236, 253, 245, 0.4) 100%);
}

.stat-card.green .stat-icon {
    color: #059669;
    background: rgba(5, 150, 105, 0.1);
}

.stat-card.purple {
    border-color: rgba(99, 102, 241, 0.2);
    background: linear-gradient(145deg, rgba(224, 231, 255, 0.6) 0%, rgba(238, 242, 255, 0.4) 100%);
}

.stat-card.purple .stat-icon {
    color: #6366f1;
    background: rgba(99, 102, 241, 0.1);
}

.stat-card.amber {
    border-color: rgba(217, 119, 6, 0.2);
    background: linear-gradient(145deg, rgba(254, 243, 199, 0.6) 0%, rgba(254, 249, 235, 0.4) 100%);
}

.stat-card.amber .stat-icon {
    color: #d97706;
    background: rgba(217, 119, 6, 0.1);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 24px;
    transition: all 0.3s ease;
}

.stat-card:hover .stat-icon {
    transform: scale(1.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0.5rem 0;
}

.stat-label {
    color: #64748b;
    font-size: 0.95rem;
    font-weight: 500;
    margin: 0;
}

/* Search and Filter Card - Mac Style */
.search-filter-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 
        0 4px 16px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    margin-bottom: 2rem;
}

.search-input-group .input-group-text {
    background: rgba(248, 250, 252, 0.8);
    border: 1px solid rgba(203, 213, 225, 0.5);
    border-right: none;
    color: #64748b;
}

.search-input-group .form-control {
    background: rgba(248, 250, 252, 0.8);
    border: 1px solid rgba(203, 213, 225, 0.5);
    border-left: none;
    padding: 0.75rem 1rem;
}

.search-input-group .form-control:focus {
    background: white;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.filter-select {
    background: rgba(248, 250, 252, 0.8);
    border: 1px solid rgba(203, 213, 225, 0.5);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
}

.filter-select:focus {
    background: white;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-export {
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.08) 0%, rgba(37, 99, 235, 0.05) 100%);
    border: 1px solid rgba(37, 99, 235, 0.2);
    color: #2563eb;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-export:hover {
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.15) 0%, rgba(37, 99, 235, 0.1) 100%);
    border-color: rgba(37, 99, 235, 0.3);
    color: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

/* Table Card - Mac Style */
.table-card {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.table-card-header {
    background: linear-gradient(145deg, rgba(248, 250, 252, 0.8) 0%, rgba(241, 245, 249, 0.6) 100%);
    border-bottom: 1px solid rgba(203, 213, 225, 0.3);
    padding: 1.25rem 1.5rem;
}

.table-card-header h5 {
    color: #1e293b;
    font-weight: 600;
    margin: 0;
}

/* Table Styling */
.students-table {
    margin: 0;
}

.students-table thead {
    background: linear-gradient(145deg, rgba(37, 99, 235, 0.08) 0%, rgba(37, 99, 235, 0.05) 100%);
    border-bottom: 2px solid rgba(37, 99, 235, 0.1);
}

.students-table thead th {
    color: #1e293b;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1.25rem 1.5rem;
    border: none;
}

.students-table tbody tr {
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    transition: all 0.2s ease;
}

.students-table tbody tr:hover {
    background: rgba(248, 250, 252, 0.6);
}

.students-table tbody td {
    padding: 1.25rem 1.5rem;
    vertical-align: middle;
    color: #475569;
}

/* Avatar Styling */
.student-avatar {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(145deg, #2563eb 0%, #1e40af 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.student-name {
    font-weight: 600;
    color: #1e293b;
}

/* Badge Styling */
.badge-id {
    background: linear-gradient(145deg, rgba(71, 85, 105, 0.1) 0%, rgba(71, 85, 105, 0.05) 100%);
    color: #475569;
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid rgba(71, 85, 105, 0.1);
    white-space: nowrap;
    display: inline-block;
}

.badge-course {
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.15) 0%, rgba(99, 102, 241, 0.1) 100%);
    color: #6366f1;
    padding: 0.4rem 0.9rem;
    border-radius: 8px;
    font-weight: 600;
    border: 1px solid rgba(99, 102, 241, 0.2);
    white-space: nowrap;
    display: inline-block;
}

/* Action Buttons */
.action-btn-group {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.action-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid;
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.action-btn.view {
    background: rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.2);
    color: #2563eb;
}

.action-btn.view:hover {
    background: rgba(37, 99, 235, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.action-btn.edit {
    background: rgba(217, 119, 6, 0.1);
    border-color: rgba(217, 119, 6, 0.2);
    color: #d97706;
}

.action-btn.edit:hover {
    background: rgba(217, 119, 6, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.2);
}

.action-btn.delete {
    background: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.2);
    color: #dc2626;
}

.action-btn.delete:hover {
    background: rgba(220, 38, 38, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.2);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
}

.empty-state-icon {
    color: #cbd5e1;
    margin-bottom: 1.5rem;
}

.empty-state h4 {
    color: #64748b;
    margin-bottom: 0.75rem;
}

.empty-state p {
    color: #94a3b8;
    margin-bottom: 2rem;
}

/* Responsive */
@media (max-width: 767.98px) {
    .student-management-header h1 {
        font-size: 1.75rem;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
}

/* Smooth Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Loading State */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Focus States */
.form-control:focus,
.form-select:focus {
    outline: none;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}