/* Custom styles for Software Platform */

/* Variables for consistent theming */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --border-radius: 0.375rem;
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Global Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Navigation Enhancements */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--info-color) !important;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0b5ed7 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 100" fill="rgba(255,255,255,0.1)"><polygon points="1000,100 1000,0 0,100"/></svg>') no-repeat center bottom;
    background-size: cover;
}

.hero-stats {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Card Enhancements */
.card {
    border: none;
    border-radius: var(--border-radius);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow-lg);
}

.card-img-top {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    transition: transform 0.3s ease;
}

.card:hover .card-img-top {
    transform: scale(1.02);
}

/* Button Enhancements */
.btn {
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all 0.2s ease-in-out;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), #0b5ed7);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(45deg, #0b5ed7, var(--primary-color));
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(13, 110, 253, 0.3);
}

.btn-success {
    background: linear-gradient(45deg, var(--success-color), #157347);
    border: none;
}

.btn-success:hover {
    background: linear-gradient(45deg, #157347, var(--success-color));
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(25, 135, 84, 0.3);
}

/* Form Enhancements */
.form-control, .form-select {
    border-radius: var(--border-radius);
    border: 1px solid #dee2e6;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
}

/* Badge Enhancements */
.badge {
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.35em 0.65em;
}

/* Search Enhancements */
.navbar .form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
}

.navbar .form-control::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.navbar .form-control:focus {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: none;
    color: white;
}

/* Category Grid */
.category-grid .btn {
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    border: 2px solid transparent;
    background: white;
    color: var(--primary-color);
}

.category-grid .btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

/* Alert Enhancements */
.alert {
    border: none;
    border-radius: var(--border-radius);
    border-left: 4px solid;
}

.alert-success {
    border-left-color: var(--success-color);
    background: rgba(25, 135, 84, 0.1);
}

.alert-danger {
    border-left-color: var(--danger-color);
    background: rgba(220, 53, 69, 0.1);
}

.alert-warning {
    border-left-color: var(--warning-color);
    background: rgba(255, 193, 7, 0.1);
}

.alert-info {
    border-left-color: var(--info-color);
    background: rgba(13, 202, 240, 0.1);
}

/* Table Enhancements */
.table {
    border-radius: var(--border-radius);
    overflow: hidden;
}

.table thead th {
    background: var(--light-color);
    border-bottom: 2px solid #dee2e6;
    font-weight: 600;
    color: #495057;
}

.table-hover tbody tr:hover {
    background: rgba(13, 110, 253, 0.05);
}

/* Pagination */
.pagination .page-link {
    border-radius: var(--border-radius);
    margin: 0 2px;
    border: 1px solid #dee2e6;
    color: var(--primary-color);
}

.pagination .page-link:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

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

/* Footer */
footer {
    background: linear-gradient(135deg, var(--dark-color) 0%, #343a40 100%);
}

footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--info-color);
}

.social-links a {
    display: inline-block;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-2px);
}

/* Admin Dashboard */
.admin-card {
    border-left: 4px solid;
    border-radius: var(--border-radius);
}

.admin-card.border-primary { border-left-color: var(--primary-color); }
.admin-card.border-success { border-left-color: var(--success-color); }
.admin-card.border-warning { border-left-color: var(--warning-color); }
.admin-card.border-danger { border-left-color: var(--danger-color); }

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

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero {
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-stats {
        margin-top: 2rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-group .btn {
        padding: 0.375rem 0.5rem;
    }
}

@media (max-width: 576px) {
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .btn-toolbar .btn-group {
        margin-bottom: 0.5rem;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 30px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

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

/* Utility Classes */
.text-light-emphasis {
    color: rgba(255, 255, 255, 0.8) !important;
}

.shadow-sm {
    box-shadow: var(--box-shadow) !important;
}

.shadow-lg {
    box-shadow: var(--box-shadow-lg) !important;
}

.border-radius {
    border-radius: var(--border-radius) !important;
}

/* Print Styles */
@media print {
    .navbar, .btn, .pagination, footer {
        display: none !important;
    }
    
    .card {
        border: 1px solid #000 !important;
        break-inside: avoid;
    }
    
    .container-fluid {
        padding: 0 !important;
    }
}