/**
 * GELIS Modern CSS Theme
 * Clean, modern, and professional UI/UX
 */

/* Extended Variables */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-gradient: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    --info-gradient: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    --warning-gradient: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    --danger-gradient: linear-gradient(135deg, #f56565 0%, #e53e3e 100%);
    --dark-gradient: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);

    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;

    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.15);

    --transition-fast: 0.2s;
    --transition-base: 0.3s;
    --transition-slow: 0.5s;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

/* Cards Enhancement */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
}

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

.card-header {
    background: var(--light-color);
    border-bottom: 1px solid #e2e8f0;
    padding: 1.25rem;
    font-weight: 600;
}

/* Buttons Enhancement */
.btn {
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    padding: 0.625rem 1.5rem;
    transition: all var(--transition-base);
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

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

.btn-info {
    background: var(--info-gradient);
    color: white;
}

.btn-warning {
    background: var(--warning-gradient);
    color: white;
}

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

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
}

/* Forms Enhancement */
.form-control, .form-select {
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius-sm);
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

/* Tables Enhancement */
.table {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead th {
    background: var(--light-color);
    border-bottom: 2px solid #e2e8f0;
    font-weight: 600;
    color: var(--dark-color);
    padding: 1rem;
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background-color: #f8fafc;
}

.table td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
}

/* Badges Enhancement */
.badge {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 50px;
}

/* Alerts Enhancement */
.alert {
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, #d4f4dd 0%, #c3e9d4 100%);
    color: #22543d;
}

.alert-info {
    background: linear-gradient(135deg, #d6e5fa 0%, #c3dafe 100%);
    color: #2c5282;
}

.alert-warning {
    background: linear-gradient(135deg, #fed7c3 0%, #fbd38d 100%);
    color: #7c2d12;
}

.alert-danger {
    background: linear-gradient(135deg, #fed7d7 0%, #feb2b2 100%);
    color: #742a2a;
}

/* Progress Bar Enhancement */
.progress {
    height: 0.75rem;
    border-radius: 50px;
    background: #e2e8f0;
    overflow: hidden;
}

.progress-bar {
    background: var(--primary-gradient);
    transition: width var(--transition-slow);
}

/* Dropdown Enhancement */
.dropdown-menu {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    margin-top: 0.5rem;
}

.dropdown-item {
    border-radius: var(--border-radius-sm);
    padding: 0.625rem 1rem;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

/* Modal Enhancement */
.modal-content {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    border-bottom: 1px solid #e2e8f0;
    padding: 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #e2e8f0;
    padding: 1.5rem;
}

/* Pagination Enhancement */
.pagination .page-link {
    border: none;
    margin: 0 2px;
    border-radius: var(--border-radius-sm);
    color: var(--primary-color);
    transition: all var(--transition-fast);
}

.pagination .page-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

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

/* List Group Enhancement */
.list-group-item {
    border: none;
    border-radius: var(--border-radius-sm);
    margin-bottom: 0.5rem;
    transition: all var(--transition-fast);
}

.list-group-item:hover {
    background: var(--light-color);
    transform: translateX(5px);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 50px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Animations */
@keyframes slideInUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-30px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

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

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

.animate-slide-left {
    animation: slideInLeft 0.5s ease-out;
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Utility Classes */
.text-gradient-primary {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bg-gradient-primary {
    background: var(--primary-gradient);
}

.bg-gradient-success {
    background: var(--success-gradient);
}

.bg-gradient-info {
    background: var(--info-gradient);
}

.bg-gradient-warning {
    background: var(--warning-gradient);
}

.bg-gradient-danger {
    background: var(--danger-gradient);
}

.shadow-custom {
    box-shadow: var(--shadow-md);
}

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

.border-custom {
    border: 2px solid #e2e8f0;
}

/* 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 var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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

/* Responsive Utilities */
@media (max-width: 576px) {
    .container-fluid {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
}

/* Print Styles */
@media print {
    .sidebar-custom,
    .navbar-custom,
    .btn,
    .dropdown,
    .loading-overlay {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
        margin-top: 0 !important;
        padding: 0 !important;
    }

    .card {
        box-shadow: none;
        border: 1px solid #e2e8f0;
    }
}