/* UI Polish & Advanced Micro-interactions */

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

/* Enhanced Loading States */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    gap: 20px;
}

.loading-state .loader {
    width: 48px;
    height: 48px;
    border: 4px solid var(--background-tertiary);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

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

.loading-state p {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Enhanced Button States */
button:disabled,
.btn-primary:disabled,
.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Selection Styling */
::selection {
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--text-primary);
}

::-moz-selection {
    background-color: rgba(16, 185, 129, 0.2);
    color: var(--text-primary);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--background-secondary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

/* Enhanced Card Hover Effects */
.card,
.content-card,
.stat-card {
    position: relative;
}

.card::after,
.content-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
    box-shadow: 0 0 0 2px var(--primary-color);
}

.card:focus-within::after,
.content-card:focus-within::after {
    opacity: 0.3;
}

/* Enhanced Input States */
input:not([type="checkbox"]):not([type="radio"]),
select,
textarea {
    position: relative;
}

input:invalid:not(:placeholder-shown),
select:invalid,
textarea:invalid {
    border-color: var(--error-color);
}

input:valid:not(:placeholder-shown),
select:valid,
textarea:valid {
    border-color: var(--success-color);
}

/* Tooltip Enhancement */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: 8px 12px;
    background: var(--text-primary);
    color: white;
    font-size: 13px;
    font-weight: 500;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    pointer-events: none;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

[data-tooltip]::after {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--text-primary);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    pointer-events: none;
    z-index: 1000;
}

[data-tooltip]:hover::before,
[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* Enhanced Badge Styles */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    transition: all var(--transition-base);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.badge:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Enhanced Modal Backdrop */
.popup-overlay {
    animation: fadeIn 0.3s ease-out;
}

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

.popup-modal {
    animation: slideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Enhanced SVG Icons */
svg {
    transition: all var(--transition-base);
}

button:hover svg,
.nav-item:hover svg,
a:hover svg {
    transform: scale(1.1);
}

/* Enhanced Focus States */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Stagger Animations for Lists */
.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.2s; }
.stat-card:nth-child(3) { animation-delay: 0.3s; }
.stat-card:nth-child(4) { animation-delay: 0.4s; }

.feature-item:nth-child(1) { animation-delay: 0.1s; }
.feature-item:nth-child(2) { animation-delay: 0.2s; }
.feature-item:nth-child(3) { animation-delay: 0.3s; }
.feature-item:nth-child(4) { animation-delay: 0.4s; }

/* Enhanced Empty States */
.empty-state {
    animation: fadeInScale 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Enhanced Error Messages */
.error-message {
    animation: shake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Enhanced Success States */
.success-message {
    animation: bounceIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Enhanced Table Rows */
.data-table tbody tr {
    animation: fadeInUp 0.4s ease-out backwards;
}

.data-table tbody tr:nth-child(1) { animation-delay: 0.05s; }
.data-table tbody tr:nth-child(2) { animation-delay: 0.1s; }
.data-table tbody tr:nth-child(3) { animation-delay: 0.15s; }
.data-table tbody tr:nth-child(4) { animation-delay: 0.2s; }
.data-table tbody tr:nth-child(5) { animation-delay: 0.25s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Enhanced Sidebar Transitions */
.sidebar {
    transition: all var(--transition-slow);
}

/* Enhanced Header */
.content-header {
    animation: slideInDown 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

/* Glass Effect Enhancement */
.glass-effect {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 1);
}

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Shimmer Effect for Loading */
.shimmer {
    background: linear-gradient(
        90deg,
        var(--background-secondary) 0%,
        var(--background-tertiary) 50%,
        var(--background-secondary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Enhanced Active States */
.nav-item.active {
    animation: slideInRight 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(4px);
    }
}

/* Print Styles */
@media print {
    .sidebar,
    .header-actions,
    button,
    .btn-primary,
    .btn-secondary {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
        max-width: 100%;
    }
    
    .glass-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --border-color: rgba(0, 0, 0, 0.3);
        --text-secondary: #4B5563;
    }
    
    .glass-card {
        border: 2px solid var(--border-color);
    }
}

/* Dark Mode Preparation (for future implementation) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here */
}