/**
 * RegexTester Pro - Custom Styles
 * Modern design with animations and interactive elements
 */

/* Root Variables - Modern Dark Theme */
:root {
    --primary-color: #10b981;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --info-color: #06b6d4;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --light-color: #f8fafc;
    --dark-color: #0f172a;

    --gradient-primary: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    --gradient-secondary: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --gradient-accent: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --border-radius: 0.75rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    scroll-behavior: smooth;
    padding-top: 76px;
    /* 为固定导航栏留出空间 */
}

/* Font Awesome Icon Fixes */
.fas,
.far,
.fab,
.fa {
    font-family: "Font Awesome 6 Free", "Font Awesome 6 Brands" !important;
    font-weight: 900;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.far {
    font-weight: 400;
}

.fab {
    font-family: "Font Awesome 6 Brands" !important;
    font-weight: 400;
}

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

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

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

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

/* Navigation Styles */
.navbar {
    backdrop-filter: blur(20px);
    background: rgba(15, 23, 42, 0.95) !important;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border-bottom: 1px solid rgba(16, 185, 129, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: #10b981 !important;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    color: rgba(248, 250, 252, 0.9) !important;
}

.navbar-nav .nav-link:hover {
    color: #10b981 !important;
    transform: translateY(-1px);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #10b981;
    transition: var(--transition);
    transform: translateX(-50%);
}

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

/* Hero Section */
.hero-section {
    background: var(--gradient-primary);
    color: white;
    position: relative;
    overflow: hidden;
    min-height: auto;
    margin-top: -76px;
    padding-top: 76px;
    padding-bottom: 76px;
}

.hero-section::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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-buttons .btn {
    margin-bottom: 1rem;
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 2px solid transparent;
}

.hero-buttons .btn-primary {
    background: var(--gradient-secondary);
    border-color: #10b981;
    color: white;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-lg);
}

.hero-buttons .btn-outline-primary {
    background: transparent;
    border-color: #10b981;
    color: #10b981;
}

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

.hero-buttons .btn-primary:hover {
    background: var(--gradient-success);
    border-color: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.hero-buttons .btn-outline-primary:hover {
    background: #10b981;
    border-color: #10b981;
    color: white;
}

/* Code Preview */
.hero-image {
    position: relative;
    z-index: 2;
}

.code-preview {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.code-preview:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.code-header {
    background: linear-gradient(135deg, #475569 0%, #64748b 100%);
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(16, 185, 129, 0.2);
}

.code-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red {
    background: #ff5f56;
}

.dot.yellow {
    background: #ffbd2e;
}

.dot.green {
    background: #27ca3f;
}

.code-title {
    color: #a0aec0;
    font-size: 0.875rem;
}

.code-content {
    padding: 1.5rem;
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

.code-content pre {
    margin: 0;
    color: #e2e8f0;
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Card Styles */
.card {
    border: 1px solid rgba(100, 116, 139, 0.1);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    overflow: hidden;
    background: white;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(16, 185, 129, 0.3);
}

.card-header {
    border-bottom: none;
    font-weight: 600;
    padding: 1.25rem;
}

.card-body {
    padding: 1.5rem;
}

/* Form Controls */
.form-control,
.form-select {
    border-radius: var(--border-radius);
    border: 2px solid #e9ecef;
    transition: var(--transition);
    font-size: 0.95rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(16, 185, 129, 0.25);
    transform: translateY(-1px);
}

.font-monospace {
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace !important;
}

/* Global Button Styles */
.btn-primary {
    background: var(--gradient-secondary);
    border-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--gradient-success);
    border-color: #059669;
    transform: translateY(-1px);
}

.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

/* Flag Controls */
.flag-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Results Styles */
.results-container {
    max-height: 400px;
    overflow-y: auto;
    border-radius: var(--border-radius);
}

.highlighted-text {
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 300px;
    overflow-y: auto;
}

.match-highlight {
    background: linear-gradient(135deg, #ffeaa7, #fab1a0);
    color: #2d3436;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 600;
    animation: pulse 0.5s ease-in-out;
}

.match-item {
    background: rgba(13, 110, 253, 0.05);
    border-color: rgba(13, 110, 253, 0.2) !important;
    transition: var(--transition);
}

.match-item:hover {
    background: rgba(13, 110, 253, 0.1);
}

/* Statistics */
.stats-container {
    background: var(--light-color);
    padding: 1rem;
    border-radius: var(--border-radius);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

/* Regex Info Styling */
.regex-info {
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(13, 110, 253, 0.05);
    border-radius: var(--border-radius);
    border: 1px solid rgba(13, 110, 253, 0.1);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge {
    font-size: 0.75rem;
    padding: 0.35em 0.65em;
    border-radius: 0.5rem;
}

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

.badge.bg-primary {
    background: var(--gradient-secondary) !important;
}

.badge.bg-warning {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%) !important;
}

.badge.bg-danger {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-bottom: 1px solid #dee2e6;
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-label {
    font-weight: 500;
    color: var(--secondary-color);
}

.stat-value {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.1rem;
}

/* Feature Cards */
.feature-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
}

/* Buttons */
.btn {
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDelay {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDelay2 {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0.3;
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out;
}

.animate-fade-in-delay {
    animation: fadeInDelay 0.8s ease-out 0.2s both;
}

.animate-fade-in-delay-2 {
    animation: fadeInDelay2 0.8s ease-out 0.4s both;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-in {
    animation: fadeIn 0.6s ease-out;
}

.fadeOut {
    animation: fadeOut 0.5s ease-out;
}

/* Responsive Design */
@media (max-width: 769px) {
    body {
        padding-top: 56px;
        /* 移动端导航栏较矮 */
    }

    .hero-section {
        text-align: center;
        min-height: auto;
        padding-bottom: 56px;
        margin-top: -56px;
        padding-top: 56px;
    }

    .hero-section .container {
        padding-top: 2rem;
    }

    .code-preview {
        transform: none;
        margin-top: 2rem;
    }

    .flag-controls {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .feature-card {
        margin-bottom: 2rem;
    }

    /* 确保标题不被遮挡 */
    .display-4 {
        margin-top: 1rem;
        line-height: 1.2;
    }

    /* 调整导航栏在移动端的高度 */
    .navbar {
        min-height: 56px;
    }
}

@media (max-width: 576px) {
    .display-4 {
        font-size: 2rem;
        margin-top: 1.5rem;
        line-height: 1.1;
    }

    .lead {
        font-size: 1rem;
        margin-top: 1rem;
        margin-bottom: 2rem;
    }

    /* 确保按钮区域有足够间距 */
    .hero-buttons {
        margin-top: 2rem;
    }

    /* 调整代码预览在小屏幕上的显示 */
    .code-preview {
        margin-top: 3rem;
        margin-bottom: 2rem;
    }

    .card-body {
        padding: 1rem;
    }
}

/* Footer */
footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%) !important;
    border-top: 1px solid rgba(16, 185, 129, 0.2);
}

.footer-links a {
    text-decoration: none;
    transition: var(--transition);
    color: rgba(248, 250, 252, 0.8);
}

.footer-links a:hover {
    color: var(--primary-color) !important;
    transform: translateY(-1px);
}

/* Loading States */
.loading {
    position: relative;
    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);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for better accessibility */
.btn:focus,
.form-control:focus,
.form-check-input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Examples Section */
.example-pattern {
    position: relative;
}

.example-pattern code {
    font-size: 0.85rem;
    word-break: break-all;
    white-space: pre-wrap;
}

.example-pattern::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 30px;
    height: 100%;
    background: linear-gradient(90deg, transparent, #f8f9fa);
    pointer-events: none;
}

/* Help Section */
.help-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.help-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.help-card ul li {
    padding: 0.25rem 0;
    border-bottom: 1px solid #f1f3f4;
}

.help-card ul li:last-child {
    border-bottom: none;
}

.help-card code {
    background: rgba(16, 185, 129, 0.1);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    margin-right: 0.5rem;
    min-width: 30px;
    display: inline-block;
    text-align: center;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Enhanced Button Styles */
.btn-outline-primary:hover,
.btn-outline-success:hover,
.btn-outline-info:hover,
.btn-outline-warning:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Pattern Loading Animation */
.pattern-loading {
    position: relative;
    overflow: hidden;
}

.pattern-loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

/* Tooltip Styles */
.tooltip-custom {
    position: relative;
    cursor: help;
}

.tooltip-custom::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark-color);
    color: white;
    padding: 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
}

.tooltip-custom:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Enhanced Card Hover Effects */
.card-hover-lift {
    transition: var(--transition);
}

.card-hover-lift:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

/* Progress Indicators */
.progress-ring {
    width: 40px;
    height: 40px;
    transform: rotate(-90deg);
}

.progress-ring circle {
    fill: transparent;
    stroke: var(--primary-color);
    stroke-width: 3;
    stroke-dasharray: 126;
    stroke-dashoffset: 126;
    transition: stroke-dashoffset 0.3s ease;
}

/* Copy to Clipboard Animation */
.copy-success {
    animation: copyPulse 0.6s ease-out;
}

@keyframes copyPulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
        background-color: var(--success-color);
    }

    100% {
        transform: scale(1);
    }
}

/* Toast Notifications */
.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    color: var(--dark-color);
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary-color);
    z-index: 9999;
    transform: translateX(100%);
    opacity: 0;
    transition: var(--transition);
    max-width: 300px;
    font-weight: 500;
}

.toast-notification.show {
    transform: translateX(0);
    opacity: 1;
}

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

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

.toast-notification.toast-warning {
    border-left-color: var(--warning-color);
}

.toast-notification.toast-info {
    border-left-color: var(--info-color);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid var(--dark-color);
    }

    .match-highlight {
        background: yellow;
        color: black;
    }

    .help-card code {
        background: yellow;
        color: black;
    }
}

/* Advanced Analysis Styles */
.explanation-item {
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    background: var(--light-color);
    border-left: 3px solid var(--primary-color);
    border-radius: 0.25rem;
    font-size: 0.9rem;
}

.explanation-item code {
    background: var(--warning-color);
    color: white;
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-weight: bold;
    margin-right: 0.5rem;
}

.code-example {
    background: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 1rem;
}

.code-example pre {
    background: #2d3748;
    color: #e2e8f0;
    border-radius: 0.5rem;
    padding: 1rem;
    margin: 0;
    overflow-x: auto;
}

.code-example code {
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
}

.pattern-loading {
    position: relative;
    overflow: hidden;
}

.pattern-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.stat-value.badge {
    font-size: 0.8rem;
    padding: 0.4rem 0.6rem;
}

/* Enhanced Match Highlighting */
.match-highlight {
    background: linear-gradient(135deg, #fef3c7 0%, #fcd34d 100%);
    padding: 0.1rem 0.2rem;
    border-radius: 0.25rem;
    font-weight: bold;
    border: 1px solid #f59e0b;
    cursor: pointer;
    transition: var(--transition);
}

.match-highlight:hover {
    background: linear-gradient(135deg, #fcd34d 0%, #f59e0b 100%);
    color: white;
    transform: scale(1.05);
}

/* Advanced Panel Animation */
#advancedAnalysisPanel {
    animation: slideInUp 0.5s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Enhanced Button Styles */
.btn-outline-info:hover,
.btn-outline-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Additional Responsive Styles for New Features */
@media (max-width: 769px) {
    .explanation-item {
        font-size: 0.8rem;
        padding: 0.4rem;
    }

    .navbar-nav {
        height: 100vh;
    }

    .code-example {
        padding: 0.5rem;
    }

    .code-example pre {
        padding: 0.5rem;
        font-size: 0.75rem;
    }

    .stat-value.badge {
        font-size: 0.7rem;
        padding: 0.3rem 0.5rem;
    }

    /* Floating Action Button Mobile */
    .floating-action-btn {
        bottom: 20px;
        right: 20px;
    }

    .floating-action-btn .btn {
        width: 50px;
        height: 50px;
    }

    .fab-tooltip {
        display: none;
        /* Hide tooltip on mobile */
    }

    .me-3 {
        margin-right: 0 !important;
        margin-bottom: 20px;
    }
}

/* Tutorial Styles */
.tutorial-demo {
    background: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 1rem;
    text-align: center;
}

.example-box {
    background: #e3f2fd;
    border-left: 4px solid #2196f3;
    padding: 0.75rem;
    margin: 0.5rem 0;
    border-radius: 0.25rem;
    font-family: monospace;
    font-size: 0.9rem;
}

.use-case-example {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
}

.use-case-example strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.use-case-example code {
    background: #2d3748;
    color: #e2e8f0;
    padding: 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.85rem;
    word-break: break-all;
}

.btn-xs {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 0.25rem;
}

.accordion-button {
    font-weight: 600;
}

.accordion-button:not(.collapsed) {
    background-color: rgba(var(--bs-primary-rgb), 0.1);
}

.accordion-body h5 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.accordion-body h6 {
    color: var(--secondary-color);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.accordion-body ul.small li {
    margin-bottom: 0.25rem;
}

/* Enhanced Help Cards */
.help-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
}

.help-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Floating Action Button */
.floating-action-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    transition: var(--transition);
}

.floating-action-btn .btn {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.floating-action-btn .btn:hover {
    transform: scale(1.1);
    animation: none;
}

.fab-tooltip {
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    pointer-events: none;
}

.floating-action-btn:hover .fab-tooltip {
    opacity: 1;
    visibility: visible;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), 0.7);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(var(--bs-primary-rgb), 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(var(--bs-primary-rgb), 0);
    }
}