/**
 * Modern UI Enhancements
 * Supplemental stylesheet for modernized design
 */

/* Enhanced Color System */
:root {
    /* Update primary colors for more modern look */
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #dbeafe;

    /* Enhanced shadows for depth */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    /* Smooth transitions */
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modern Button Enhancements */
.btn {
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    font-weight: 500;
    letter-spacing: 0.01em;
}

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

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

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

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

/* Card Enhancements */
.card {
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: rgba(0, 0, 0, 0.08);
}

/* Client Card Modernization */
.client-card {
    transition: var(--transition);
    border: 1px solid var(--border);
}

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

/* Modern Table Styling */
.data-table {
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    overflow: hidden;
}

.data-table thead {
    background: linear-gradient(180deg, #fafafa 0%, #f5f5f5 100%);
}

.data-table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

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

.data-table tbody tr:hover {
    background: var(--background);
    box-shadow: inset 0 0 0 1px var(--border);
}

/* Dark Mode Enhancements */
.dark-mode .data-table thead {
    background: linear-gradient(180deg, #1e293b 0%, #1a2332 100%);
}

.dark-mode .card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.dark-mode .btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

/* Input Field Enhancements */
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    transition: var(--transition);
    border: 1.5px solid var(--border);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    transform: scale(1.005);
}

/* Search Box Modernization */
.search-box input {
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.search-box input:focus {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

/* Badge Enhancements */
.badge {
    font-weight: 600;
    letter-spacing: 0.025em;
    box-shadow: var(--shadow-sm);
}

/* Alert Modernization */
.alert {
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
}

.alert-success {
    border-left-color: var(--success);
}

.alert-error {
    border-left-color: var(--danger);
}

.alert-info {
    border-left-color: var(--info, var(--primary));
}

/* Navigation Link Hover Effects */
.nav-link {
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover::after {
    width: 80%;
}

/* Modal Enhancements */
.modal {
    backdrop-filter: blur(4px);
}

.modal-content {
    animation: modalSlideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Loading States */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

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

/* Focus Visible for Accessibility */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Mobile Touch Improvements */
@media (max-width: 768px) {
    .btn {
        min-height: 44px;
        padding: 0.75rem 1rem;
    }

    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* Database Table Mobile Improvements */
@media (max-width: 768px) {
    .database-table {
        font-size: 0.813rem;
    }

    .password-cell {
        min-width: 120px;
    }
}

/* Country Section Modernization */
.country-section {
    border: 1px solid var(--border);
    transition: var(--transition);
}

.country-section:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

/* Page Header Improvements */
.page-header h1 {
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Footer Enhancements */
.footer {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.05);
}