/* ============================================
   DESIGN ENHANCEMENTS - Modern UI Improvements
   ============================================ */

/* Enhanced Color Palette */
:root {
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-info: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.18);
    --shadow-glow: 0 8px 32px rgba(99, 102, 241, 0.12);
    --shadow-glow-hover: 0 12px 40px rgba(99, 102, 241, 0.2);
}

[data-bs-theme="dark"] {
    --glass-bg: rgba(31, 41, 55, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-glow: 0 8px 32px rgba(99, 102, 241, 0.15);
    --shadow-glow-hover: 0 12px 40px rgba(99, 102, 241, 0.25);
}

/* ============================================
   ENHANCED CARDS - Glassmorphism & Depth
   ============================================ */

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md), 0 1px 0 rgba(255, 255, 255, 0.1) inset;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-hover), 0 1px 0 rgba(255, 255, 255, 0.1) inset;
    border-color: rgba(99, 102, 241, 0.3);
}

.card:hover::before {
    opacity: 1;
}

.card:active {
    transform: translateY(-2px) scale(0.98);
}

/* Card Header Enhancement */
.card-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    position: relative;
}

[data-bs-theme="dark"] .card-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
}

/* ============================================
   ENHANCED BUTTONS - Modern Gradients
   ============================================ */

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
    letter-spacing: 0.3px;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #db2777 100%);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

.btn-success {
    background: var(--gradient-success);
    border: none;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

.btn-danger {
    background: var(--gradient-danger);
    border: none;
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(239, 68, 68, 0.5);
}

.btn-outline-primary {
    border: 2px solid #6366f1;
    color: #6366f1;
    background: transparent;
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
}

.btn-outline-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: var(--gradient-primary);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.btn-outline-primary:hover {
    color: white;
    border-color: #6366f1;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-outline-primary:hover::before {
    width: 100%;
}

/* ============================================
   ENHANCED FORM CONTROLS
   ============================================ */

.form-control,
.form-select {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid var(--border-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.form-control:focus,
.form-select:focus {
    background: var(--bg-primary);
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--shadow-md);
    transform: translateY(-1px);
}

.form-control:hover:not(:focus),
.form-select:hover:not(:focus) {
    border-color: #cbd5e1;
    box-shadow: var(--shadow-sm);
}

/* Input with icon enhancement */
.input-group .form-control {
    border-left: none;
}

.input-group-text {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid var(--border-color);
    border-right: none;
}

/* ============================================
   ENHANCED STATS CARDS
   ============================================ */

.stats-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.stats-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.stats-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-glow-hover);
    border-color: rgba(99, 102, 241, 0.3);
}

.stats-card:hover::after {
    opacity: 1;
}

.stats-icon {
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.stats-card:hover .stats-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* ============================================
   ENHANCED LIST ITEMS
   ============================================ */

.list-item {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.list-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.list-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(99, 102, 241, 0.3);
}

.list-item:hover::before {
    transform: scaleY(1);
}

/* ============================================
   ENHANCED MODALS
   ============================================ */

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.modal-footer {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
}

/* ============================================
   ENHANCED BADGES & TAGS
   ============================================ */

.badge {
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.badge-success {
    background: var(--gradient-success);
    color: white;
}

.badge-danger {
    background: var(--gradient-danger);
    color: white;
}

.badge:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ============================================
   ENHANCED ALERTS
   ============================================ */

.alert {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border-left: 4px solid;
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.alert-success {
    border-left-color: #10b981;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.alert-danger {
    border-left-color: #ef4444;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
}

.alert-info {
    border-left-color: #3b82f6;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0.05) 100%);
}

/* ============================================
   ENHANCED NAVIGATION
   ============================================ */

.navbar {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

/* ============================================
   SMOOTH ANIMATIONS
   ============================================ */

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

/* Apply fade-in animation to cards */
.card,
.stats-card,
.list-item {
    animation: fadeInUp 0.5s ease-out;
}

/* Stagger animation for multiple items */
.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }

/* ============================================
   ENHANCED DROPDOWNS
   ============================================ */

.dropdown-menu {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    padding: 8px;
    animation: fadeInUp 0.2s ease-out;
}

.dropdown-item {
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    padding: 10px 16px;
}

.dropdown-item:hover {
    background: rgba(99, 102, 241, 0.1);
    transform: translateX(4px);
}

/* ============================================
   ENHANCED TABLES
   ============================================ */

.table {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.table thead {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
}

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

.table tbody tr:hover {
    background: rgba(99, 102, 241, 0.05);
    transform: scale(1.01);
}

/* ============================================
   ENHANCED PROGRESS BARS
   ============================================ */

.progress {
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    height: 10px;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-bar {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

/* ============================================
   RESPONSIVE ENHANCEMENTS
   ============================================ */

@media (max-width: 768px) {
    .card {
        border-radius: var(--radius-md);
    }
    
    .stats-card {
        padding: 20px;
    }
    
    .btn {
        padding: 12px 20px;
    }
}

/* ============================================
   DARK MODE ENHANCEMENTS
   ============================================ */

[data-bs-theme="dark"] .card {
    background: rgba(31, 41, 55, 0.7);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .card:hover {
    background: rgba(31, 41, 55, 0.85);
    border-color: rgba(99, 102, 241, 0.4);
}

[data-bs-theme="dark"] .stats-card {
    background: rgba(31, 41, 55, 0.7);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background: rgba(31, 41, 55, 0.8);
    border-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.95);
}

[data-bs-theme="dark"] .form-control:focus,
[data-bs-theme="dark"] .form-select:focus {
    background: rgba(31, 41, 55, 0.95);
    border-color: rgba(99, 102, 241, 0.5);
}

[data-bs-theme="dark"] .modal-content {
    background: rgba(31, 41, 55, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .dropdown-menu {
    background: rgba(31, 41, 55, 0.95);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-bs-theme="dark"] .table {
    background: rgba(31, 41, 55, 0.7);
    color: rgba(255, 255, 255, 0.9);
}

[data-bs-theme="dark"] .table thead {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
}

[data-bs-theme="dark"] .table tbody tr:hover {
    background: rgba(99, 102, 241, 0.1);
}

/* ============================================
   LOADING STATES
   ============================================ */

.loading-skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* ============================================
   SCROLLBAR ENHANCEMENTS
   ============================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.shadow-glow {
    box-shadow: var(--shadow-glow);
}

.shadow-glow-hover:hover {
    box-shadow: var(--shadow-glow-hover);
}