/* ===== BACKEND COMPATIBILITY LAYER ===== */
/* Ensures enhanced box styling works seamlessly with backend */

/* ===== SHARED COLOR SCHEME ===== */
:root {
    /* Primary colors matching backend */
    --primary-color: #3ecf8e;
    --primary-dark: #27b88a;
    --primary-light: #5fdb9a;
    
    /* Backend background colors */
    --backend-bg: #f6f7f8;
    --backend-card-bg: #ffffff;
    
    /* Enhanced shadow system */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-xl: 0 6px 24px rgba(0,0,0,0.1);
    
    /* Enhanced border system */
    --border-light: #f0f3f6;
    --border-medium: #e9ecef;
    --border-dark: #dee2e6;
}

/* ===== BACKEND INTEGRATION STYLES ===== */

/* Ensure backend tables work with enhanced styling */
.backend-table-wrapper {
    background: var(--backend-card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
    overflow: hidden;
    transition: all 0.3s ease;
}

.backend-table-wrapper:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--border-medium);
}

/* Enhanced backend cards */
.backend-card,
.card.backend-enhanced {
    background: var(--backend-card-bg);
    border: 2px solid var(--border-light);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    overflow: hidden;
    position: relative;
}

.backend-card::before,
.card.backend-enhanced::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.backend-card:hover,
.card.backend-enhanced:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-medium);
}

.backend-card:hover::before,
.card.backend-enhanced:hover::before {
    opacity: 1;
}

/* ===== BACKEND FORM ENHANCEMENTS ===== */

/* Enhanced form inputs compatible with backend */
.form-control.enhanced,
.backend-input {
    border: 2px solid var(--border-light);
    border-radius: 8px;
    padding: 10px 15px;
    transition: all 0.3s ease;
    background: #ffffff;
    box-shadow: var(--shadow-sm);
}

.form-control.enhanced:focus,
.backend-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(62, 207, 142, 0.1), var(--shadow-md);
    outline: none;
}

.form-control.enhanced:hover,
.backend-input:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

/* ===== BACKEND BUTTON ENHANCEMENTS ===== */

/* Enhanced buttons maintaining backend functionality */
.btn.enhanced {
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 2px solid transparent;
}

.btn.enhanced:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary.enhanced {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-color);
}

.btn-primary.enhanced:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    box-shadow: 0 4px 16px rgba(62, 207, 142, 0.25);
}

/* ===== BACKEND MODAL ENHANCEMENTS ===== */

.modal-content.enhanced {
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header.enhanced {
    background: linear-gradient(135deg, var(--backend-bg) 0%, #ffffff 100%);
    border-bottom: 2px solid var(--border-light);
    position: relative;
}

.modal-header.enhanced::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
}

/* ===== BACKEND TABLE ENHANCEMENTS ===== */

.table.enhanced {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table.enhanced thead th {
    background: linear-gradient(135deg, var(--backend-bg) 0%, #ffffff 100%);
    border-bottom: 2px solid var(--border-light);
    font-weight: 700;
    color: #2c3e50;
}

.table.enhanced tbody tr {
    transition: all 0.2s ease;
}

.table.enhanced tbody tr:hover {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    transform: scale(1.01);
    box-shadow: var(--shadow-sm);
}

/* ===== BACKEND NAVIGATION ENHANCEMENTS ===== */

.nav-pills.enhanced .nav-link {
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
    margin: 2px;
}

.nav-pills.enhanced .nav-link:hover {
    background: linear-gradient(135deg, var(--backend-bg) 0%, #ffffff 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.nav-pills.enhanced .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    box-shadow: var(--shadow-md);
}

/* ===== BACKEND ALERT ENHANCEMENTS ===== */

.alert.enhanced {
    border: none;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    border-left: 4px solid;
    font-weight: 500;
}

.alert-success.enhanced {
    background: linear-gradient(135deg, #e8f5e8 0%, #ffffff 100%);
    border-left-color: #4CAF50;
    color: #2e7d32;
}

.alert-warning.enhanced {
    background: linear-gradient(135deg, #fff8e1 0%, #ffffff 100%);
    border-left-color: #FF9800;
    color: #ef6c00;
}

.alert-danger.enhanced {
    background: linear-gradient(135deg, #ffebee 0%, #ffffff 100%);
    border-left-color: #F44336;
    color: #c62828;
}

.alert-info.enhanced {
    background: linear-gradient(135deg, #e3f2fd 0%, #ffffff 100%);
    border-left-color: #2196F3;
    color: #1976d2;
}

/* ===== BACKEND BADGE ENHANCEMENTS ===== */

.badge.enhanced {
    font-weight: 600;
    border-radius: 6px;
    padding: 4px 8px;
    border: 1px solid;
    transition: all 0.25s ease;
}

.badge-primary.enhanced {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-color: var(--primary-color);
}

.badge-success.enhanced {
    background: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    border-color: #4CAF50;
}

.badge-warning.enhanced {
    background: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
    border-color: #FF9800;
}

.badge-danger.enhanced {
    background: linear-gradient(135deg, #F44336 0%, #D32F2F 100%);
    border-color: #F44336;
}

/* ===== RESPONSIVE COMPATIBILITY ===== */

@media (max-width: 768px) {
    .backend-card,
    .card.backend-enhanced {
        margin-bottom: 15px;
        border-radius: 8px;
    }
    
    .backend-table-wrapper {
        border-radius: 8px;
        margin: 10px 0;
    }
    
    .form-control.enhanced,
    .backend-input {
        padding: 8px 12px;
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .backend-card,
    .card.backend-enhanced {
        border-radius: 6px;
        margin-bottom: 10px;
    }
    
    .btn.enhanced {
        padding: 8px 16px;
        font-size: 13px;
    }
}

/* ===== PRINT COMPATIBILITY ===== */

@media print {
    .backend-card,
    .card.backend-enhanced,
    .backend-table-wrapper {
        box-shadow: none !important;
        border: 1px solid #000 !important;
        background: #fff !important;
    }
    
    .backend-card::before,
    .card.backend-enhanced::before {
        display: none !important;
    }
}

/* ===== DARK MODE COMPATIBILITY ===== */

@media (prefers-color-scheme: dark) {
    :root {
        --backend-bg: #1a1a1a;
        --backend-card-bg: #2d2d2d;
        --border-light: #3a3a3a;
        --border-medium: #4a4a4a;
        --border-dark: #5a5a5a;
    }
    
    .backend-card,
    .card.backend-enhanced {
        background: var(--backend-card-bg);
        color: #e0e0e0;
    }
    
    .form-control.enhanced,
    .backend-input {
        background: var(--backend-card-bg);
        color: #e0e0e0;
    }
}

/* ===== ACCESSIBILITY ENHANCEMENTS ===== */

/* High contrast mode support */
@media (prefers-contrast: high) {
    .backend-card,
    .card.backend-enhanced,
    .form-control.enhanced,
    .backend-input {
        border-width: 3px !important;
    }
    
    .btn.enhanced {
        border-width: 2px !important;
        font-weight: 700 !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .backend-card,
    .card.backend-enhanced,
    .form-control.enhanced,
    .backend-input,
    .btn.enhanced,
    .table.enhanced tbody tr {
        transition: none !important;
        animation: none !important;
    }
    
    .backend-card:hover,
    .card.backend-enhanced:hover,
    .btn.enhanced:hover {
        transform: none !important;
    }
}

/* Focus indicators for keyboard navigation */
.backend-card:focus,
.card.backend-enhanced:focus,
.form-control.enhanced:focus,
.backend-input:focus,
.btn.enhanced:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== INTEGRATION UTILITIES ===== */

/* Smooth integration classes */
.frontend-backend-bridge {
    background: linear-gradient(135deg, var(--backend-bg) 0%, #ffffff 100%);
    padding: 20px;
    border-radius: 12px;
    margin: 20px 0;
    box-shadow: var(--shadow-md);
}

.backend-section-separator {
    border-bottom: 2px solid var(--border-light);
    margin: 20px 0;
    padding-bottom: 20px;
    position: relative;
}

.backend-section-separator::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--primary-color);
}

/* Status consistency with frontend */
.backend-status-available {
    color: #2e7d32;
    background: linear-gradient(135deg, #e8f5e8 0%, #ffffff 100%);
    border: 1px solid #81c784;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.backend-status-unavailable {
    color: #c62828;
    background: linear-gradient(135deg, #ffebee 0%, #ffffff 100%);
    border: 1px solid #e57373;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}