/* Professional UI/UX Enhancement Styles */

/* Global Improvements */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn-primary {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, #1cc88a 0%, #13855c 100%);
    border: none;
}

.btn-warning {
    background: linear-gradient(135deg, #f6c23e 0%, #dda20a 100%);
    border: none;
}

.btn-danger {
    background: linear-gradient(135deg, #e74a3b 0%, #c0392b 100%);
    border: none;
}

/* Card Enhancements */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.25rem 2rem 0 rgba(58, 59, 69, 0.2);
}

.card-header {
    background: linear-gradient(135deg, #f8f9fc 0%, #eaecf4 100%);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Form Enhancements */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid #d1d3e2;
    transition: all 0.3s ease;
    padding: 0.75rem 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: #4e73df;
    box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.25);
    transform: translateY(-1px);
}

.form-label {
    font-weight: 600;
    color: #5a5c69;
    margin-bottom: 0.5rem;
}

/* Table Enhancements */
.table {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
}

.table thead th {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%);
    color: white;
    border: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

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

.table tbody tr:hover {
    background-color: rgba(78, 115, 223, 0.05);
    transform: scale(1.01);
}

/* Modal Enhancements */
.modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.175);
}

.modal-header {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%);
    color: white;
    border-radius: 12px 12px 0 0;
    border-bottom: none;
}

.modal-footer {
    border-top: 1px solid rgba(0,0,0,0.05);
    border-radius: 0 0 12px 12px;
}

/* Navigation Enhancements */
.navbar {
    box-shadow: 0 0.15rem 1.75rem 0 rgba(58, 59, 69, 0.15);
}

.navbar-nav .nav-link {
    position: relative;
    font-weight: 500;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(135deg, #f6c23e 0%, #dda20a 100%);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.navbar-nav .nav-link:hover::before,
.navbar-nav .nav-link.active::before {
    width: 80%;
}

/* Sidebar Enhancements */
#sidebar {
    background: linear-gradient(180deg, #2c3e50 0%, #34495e 100%);
    box-shadow: 0.15rem 0 1.75rem 0 rgba(58, 59, 69, 0.15);
}

#sidebar ul li a {
    transition: all 0.3s ease;
    border-radius: 8px;
    margin: 0.25rem 0.5rem;
}

#sidebar ul li a:hover {
    background: rgba(255,255,255,0.1);
    transform: translateX(5px);
}

#sidebar ul li a.active {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%);
    box-shadow: 0 0.15rem 1.75rem 0 rgba(78, 115, 223, 0.4);
}

/* Content Grid Enhancements */
.content-item {
    transition: all 0.3s ease;
    border-radius: 12px;
    overflow: hidden;
}

.content-item:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 1rem 3rem rgba(0,0,0,0.175);
}

.content-media {
    transition: all 0.5s ease;
}

.content-item:hover .content-media {
    transform: scale(1.1);
}

/* Gallery Enhancements */
.gallery-item {
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(78, 115, 223, 0.8), rgba(34, 74, 190, 0.8));
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1;
}

.gallery-item:hover::before {
    opacity: 1;
}

.gallery-item img {
    transition: all 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    color: white;
    z-index: 2;
    transform: translateY(100%);
    transition: all 0.3s ease;
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* Statistics Cards */
.stats-card {
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
}

.stats-card.stats-primary {
    border-left-color: #4e73df;
}

.stats-card.stats-success {
    border-left-color: #1cc88a;
}

.stats-card.stats-warning {
    border-left-color: #f6c23e;
}

.stats-card.stats-danger {
    border-left-color: #e74a3b;
}

.stats-card:hover {
    transform: translateY(-3px);
    border-left-width: 6px;
}

/* Upload Zone Enhancements */
.upload-dropzone {
    border: 2px dashed #d1d3e2;
    border-radius: 12px;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #f8f9fc 0%, #eaecf4 100%);
}

.upload-dropzone:hover {
    border-color: #4e73df;
    background: linear-gradient(135deg, rgba(78, 115, 223, 0.1) 0%, rgba(34, 74, 190, 0.1) 100%);
    transform: scale(1.02);
}

.upload-dropzone.dragover {
    border-color: #1cc88a;
    background: linear-gradient(135deg, rgba(28, 200, 138, 0.1) 0%, rgba(19, 133, 92, 0.1) 100%);
    transform: scale(1.05);
}

/* Preview Container Enhancements */
.preview-container {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.preview-container:hover {
    transform: scale(1.05);
    box-shadow: 0 0.5rem 2rem rgba(0,0,0,0.15);
}

.remove-preview {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(231, 74, 59, 0.9);
    color: white;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: bold;
}

.remove-preview:hover {
    background: #e74a3b;
    transform: scale(1.1);
}

/* Loading States */
.loading {
    position: relative;
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #4e73df;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Responsive Enhancements */
@media (max-width: 768px) {
    .card {
        margin-bottom: 1rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .content-item:hover {
        transform: translateY(-2px) scale(1.01);
    }
    
    .stats-card:hover {
        transform: translateY(-1px);
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

.zoom-in {
    animation: zoomIn 0.3s ease-out;
}

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

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

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Scroll Enhancements */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #4e73df 0%, #224abe 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #224abe 0%, #1a365d 100%);
}

/* Error and Success States */
.has-error .form-control {
    border-color: #e74a3b;
    box-shadow: 0 0 0 0.2rem rgba(231, 74, 59, 0.25);
}

.has-success .form-control {
    border-color: #1cc88a;
    box-shadow: 0 0 0 0.2rem rgba(28, 200, 138, 0.25);
}

/* Professional Color Palette */
:root {
    --primary-gradient: linear-gradient(135deg, #4e73df 0%, #224abe 100%);
    --success-gradient: linear-gradient(135deg, #1cc88a 0%, #13855c 100%);
    --warning-gradient: linear-gradient(135deg, #f6c23e 0%, #dda20a 100%);
    --danger-gradient: linear-gradient(135deg, #e74a3b 0%, #c0392b 100%);
    --info-gradient: linear-gradient(135deg, #36b9cc 0%, #258391 100%);
    --dark-gradient: linear-gradient(135deg, #5a5c69 0%, #3d3d52 100%);
}