/**
 * MathSolver Pro - Modern 2025 Unique Features
 * Advanced UI Components & Interactions
 *
 * @package MathSolver_Pro
 */

/* ================================
   Micro-Interactions & Animations
   ================================ */

/* Smooth Page Load Animation */
@keyframes fadeInPage {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

body {
    animation: fadeInPage 0.5s ease-out;
}

/* Stagger Animation for Cards */
.solver-grid .solver-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.solver-grid .solver-card:nth-child(1) { animation-delay: 0.05s; }
.solver-grid .solver-card:nth-child(2) { animation-delay: 0.1s; }
.solver-grid .solver-card:nth-child(3) { animation-delay: 0.15s; }
.solver-grid .solver-card:nth-child(4) { animation-delay: 0.2s; }
.solver-grid .solver-card:nth-child(5) { animation-delay: 0.25s; }
.solver-grid .solver-card:nth-child(6) { animation-delay: 0.3s; }

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

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

/* ================================
   Badge & Tag System
   ================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-3);
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-success {
    background: rgba(20, 184, 166, 0.1);
    color: var(--accent-color);
}

.badge-warning {
    background: rgba(251, 191, 36, 0.1);
    color: #f59e0b;
}

/* ================================
   Floating Action Button
   ================================ */
.fab {
    position: fixed;
    bottom: var(--spacing-8);
    right: var(--spacing-8);
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 999;
    border: none;
    font-size: 1.5rem;
}

.fab:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(99, 102, 241, 0.5);
}

.fab:active {
    transform: translateY(-2px) scale(1.05);
}

/* Scroll to Top Button */
#scroll-to-top {
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
}

#scroll-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

/* ================================
   Loading States
   ================================ */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 0%,
        var(--bg-tertiary) 50%,
        var(--bg-secondary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

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

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

/* ================================
   Toast Notifications
   ================================ */
.toast {
    position: fixed;
    bottom: var(--spacing-8);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-4) var(--spacing-6);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    z-index: 9999;
    transition: transform var(--transition-slow);
    max-width: 400px;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

.toast-success {
    border-left: 4px solid var(--accent-color);
}

.toast-error {
    border-left: 4px solid #ef4444;
}

/* ================================
   Progress Indicators
   ================================ */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 2s infinite;
}

/* ================================
   Tooltip System
   ================================ */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    background: var(--text-color);
    color: var(--bg-color);
    padding: var(--spacing-2) var(--spacing-3);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 1000;
}

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

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

/* ================================
   Card Hover Effects
   ================================ */
.card-3d {
    transform-style: preserve-3d;
    transition: transform var(--transition-slow);
}

.card-3d:hover {
    transform: perspective(1000px) rotateX(2deg) rotateY(-2deg);
}

/* ================================
   Glassmorphism Panels
   ================================ */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
}

/* ================================
   Neumorphism Elements
   ================================ */
.neuro-card {
    background: var(--bg-color);
    box-shadow: 
        12px 12px 24px rgba(0, 0, 0, 0.1),
        -12px -12px 24px rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
}

[data-theme="dark"] .neuro-card {
    box-shadow: 
        12px 12px 24px rgba(0, 0, 0, 0.4),
        -12px -12px 24px rgba(255, 255, 255, 0.02);
}

/* ================================
   Scroll Progress Indicator
   ================================ */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* ================================
   Focus Ring Enhancement
   ================================ */
*:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* ================================
   Smooth Scrollbar
   ================================ */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-hover), var(--secondary-hover));
}

/* ================================
   Ripple Effect
   ================================ */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ================================
   Floating Labels
   ================================ */
.input-floating {
    position: relative;
    margin-top: var(--spacing-6);
}

.input-floating input,
.input-floating textarea {
    width: 100%;
    padding: var(--spacing-4);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: transparent;
    transition: all var(--transition-base);
}

.input-floating label {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-color);
    padding: 0 var(--spacing-2);
    color: var(--text-secondary);
    transition: all var(--transition-base);
    pointer-events: none;
}

.input-floating input:focus ~ label,
.input-floating input:not(:placeholder-shown) ~ label,
.input-floating textarea:focus ~ label,
.input-floating textarea:not(:placeholder-shown) ~ label {
    top: 0;
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 600;
}

/* ================================
   Accordion Enhancement
   ================================ */
.accordion-item {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-3);
    overflow: hidden;
    transition: all var(--transition-base);
}

.accordion-item:hover {
    box-shadow: var(--shadow-md);
}

.accordion-header {
    padding: var(--spacing-4) var(--spacing-6);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: all var(--transition-base);
}

.accordion-header:hover {
    background: var(--bg-secondary);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.accordion-item.active .accordion-content {
    max-height: 1000px;
    padding: var(--spacing-4) var(--spacing-6);
}

/* ================================
   Responsive Typography
   ================================ */
@media (max-width: 768px) {
    .fab {
        bottom: var(--spacing-6);
        right: var(--spacing-6);
        width: 48px;
        height: 48px;
    }
    
    .toast {
        max-width: calc(100% - var(--spacing-8));
    }
}

/* ================================
   Print Optimization
   ================================ */
@media print {
    .fab,
    .toast,
    .scroll-progress,
    .mobile-menu-toggle,
    .theme-toggle {
        display: none !important;
    }
    
    .solver-card,
    .solution-output {
        break-inside: avoid;
        box-shadow: none !important;
    }
}

/* ================================
   Advanced Tools Page Styling
   ================================ */

/* Advanced Topic Cards */
.advanced-topic-card {
    text-align: center;
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
}

.advanced-topic-card:hover {
    border-color: #f59e0b;
    box-shadow: 0 8px 24px rgba(251, 191, 36, 0.15);
    transform: translateY(-4px);
}

.advanced-topic-card .solver-icon {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    margin: 0 auto var(--spacing-4);
}

/* Tools Grid */
.tools-grid {
    margin: var(--spacing-8) 0;
}

/* Tool Card Base Styles */
.tool-card {
    background: var(--bg-color);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-8);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.tool-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary-color);
}

.tool-card:hover::before {
    transform: scaleX(1);
}

/* Tool Header */
.tool-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
}

.tool-logo {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    flex-shrink: 0;
}

/* Tool Features & Pricing */
.tool-features,
.tool-pricing {
    margin: var(--spacing-6) 0;
}

.tool-features h4,
.tool-pricing h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-3);
    color: var(--text-color);
}

.tool-features ul,
.tool-pricing ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.tool-features ul li,
.tool-pricing ul li {
    padding: var(--spacing-2) 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tool-features ul li {
    padding-left: var(--spacing-2);
}

/* Specific Tool Card Styles */
.wolfram-card:hover {
    border-color: #dd1100;
    box-shadow: 0 12px 36px rgba(221, 17, 0, 0.15);
}

.symbolab-card:hover {
    border-color: #3d5afe;
    box-shadow: 0 12px 36px rgba(61, 90, 254, 0.15);
}

.geogebra-card:hover {
    border-color: #666666;
    box-shadow: 0 12px 36px rgba(102, 102, 102, 0.15);
}

/* Button Block Style */
.btn-block {
    display: block;
    width: 100%;
    text-align: center;
    margin-top: var(--spacing-6);
}

/* Comparison Table */
.table-responsive {
    overflow-x: auto;
    background: var(--bg-color);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-md);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-color);
}

.comparison-table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.comparison-table thead th {
    padding: var(--spacing-4);
    text-align: left;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-base);
}

.comparison-table tbody tr:hover {
    background: var(--bg-secondary);
}

.comparison-table tbody tr:last-child {
    border-bottom: none;
}

.comparison-table tbody td {
    padding: var(--spacing-4);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.comparison-table tbody td.check {
    text-align: center;
    font-size: 1.2rem;
    color: var(--accent-color);
}

.comparison-table tbody td.partial {
    text-align: center;
    font-size: 1.2rem;
    color: #f59e0b;
}

/* Mini Solver Cards */
.mini-solver-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    text-align: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    transition: all var(--transition-base);
}

.mini-solver-card:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: translateY(-2px);
}

/* Advanced Math Page Specific */
.advanced-math-page .entry-header {
    padding: var(--spacing-8) 0;
}

.advanced-math-page section {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-header {
        flex-direction: column;
        text-align: center;
    }
    
    .comparison-table {
        font-size: 0.8rem;
    }
    
    .comparison-table thead th,
    .comparison-table tbody td {
        padding: var(--spacing-2);
    }
    
    .tool-card {
        padding: var(--spacing-6);
    }
}

@media (max-width: 480px) {
    .comparison-table thead th,
    .comparison-table tbody td {
        font-size: 0.75rem;
        padding: var(--spacing-1) var(--spacing-2);
    }
    
    .tool-logo {
        width: 48px;
        height: 48px;
    }
}