/* Design System & CSS Custom Properties */
:root {
    /* Enhanced Color Palette */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #a5b4fc;
    --primary-dark: #3730a3;
    --secondary: #64748b;
    --secondary-hover: #475569;
    --success: #10b981;
    --success-light: #a7f3d0;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --error: #ef4444;
    --error-light: #fecaca;
    --info: #3b82f6;
    --info-light: #bfdbfe;
    
    /* Neutral Colors with improved contrast */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Semantic Colors with better accessibility */
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-tertiary: var(--gray-500);
    --text-muted: var(--gray-400);
    --bg-primary: #ffffff;
    --bg-secondary: var(--gray-50);
    --bg-tertiary: var(--gray-100);
    --bg-elevated: #ffffff;
    --border-primary: var(--gray-200);
    --border-secondary: var(--gray-300);
    --border-focus: var(--primary);
    
    /* Enhanced Spacing Scale */
    --space-px: 1px;
    --space-0-5: 0.125rem;
    --space-1: 0.25rem;
    --space-1-5: 0.375rem;
    --space-2: 0.5rem;
    --space-2-5: 0.625rem;
    --space-3: 0.75rem;
    --space-3-5: 0.875rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-7: 1.75rem;
    --space-8: 2rem;
    --space-9: 2.25rem;
    --space-10: 2.5rem;
    --space-11: 2.75rem;
    --space-12: 3rem;
    --space-14: 3.5rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-28: 7rem;
    --space-32: 8rem;
    
    /* Enhanced Typography Scale */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    --text-5xl: 3rem;      /* 48px */
    --text-6xl: 3.75rem;   /* 60px */
    --text-7xl: 4.5rem;    /* 72px */
    --text-8xl: 6rem;      /* 96px */
    --text-9xl: 8rem;      /* 128px */
    
    /* Enhanced Font Weights */
    --font-thin: 100;
    --font-extralight: 200;
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;
    
    /* Enhanced Border Radius */
    --radius-none: 0px;
    --radius-sm: 0.125rem;
    --radius-base: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Enhanced Shadows with depth */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
    --shadow-focus: 0 0 0 3px rgb(99 102 241 / 0.1);
    
    /* Enhanced Transitions */
    --transition-all: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Layout */
    --container-max-width: 1280px;
    --header-height: 4.5rem;
    --content-max-width: 65ch;
    
    /* Enhanced Z-Index Scale */
    --z-hide: -1;
    --z-auto: auto;
    --z-base: 0;
    --z-docked: 10;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-banner: 1030;
    --z-overlay: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-skiplink: 1070;
    --z-toast: 1080;
    --z-tooltip: 1090;
}

/* Enhanced Dark Theme */
[data-theme="dark"] {
    --text-primary: var(--gray-50);
    --text-secondary: var(--gray-300);
    --text-tertiary: var(--gray-400);
    --text-muted: var(--gray-500);
    --bg-primary: var(--gray-900);
    --bg-secondary: var(--gray-800);
    --bg-tertiary: var(--gray-700);
    --bg-elevated: var(--gray-800);
    --border-primary: var(--gray-700);
    --border-secondary: var(--gray-600);
    --border-focus: var(--primary-light);
    --primary: #818cf8;
    --primary-hover: #a5b4fc;
    --primary-light: #c7d2fe;
    --primary-dark: #6366f1;
    
    /* Enhanced shadows for dark mode */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.4);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.4);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.6);
    --shadow-focus: 0 0 0 3px rgb(129 140 248 / 0.2);
}

/* Enhanced Reset & Base Styles */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    line-height: 1.6;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-feature-settings: 'cv01', 'cv03', 'cv04', 'cv11';
    font-variation-settings: 'opsz' 32;
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Enhanced focus styles for accessibility */
*:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

*:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

/* Enhanced typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-bold);
    line-height: 1.25;
    letter-spacing: -0.025em;
    color: var(--text-primary);
}

h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-extrabold);
}

h2 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
}

h3 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
}

p {
    line-height: 1.75;
    margin-bottom: var(--space-4);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-all);
}

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Enhanced Layout Components */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
    width: 100%;
}

@media (max-width: 640px) {
    .container {
        padding: 0 var(--space-4);
    }
}

.main-content {
    flex: 1;
    position: relative;
}

/* Enhanced Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-primary);
    height: var(--header-height);
    transition: var(--transition-all);
}

[data-theme="dark"] .site-header {
    background: rgba(15, 23, 42, 0.8);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--space-8);
}

@media (max-width: 768px) {
    .header-content {
        gap: var(--space-4);
    }
}

.site-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-all);
    position: relative;
}

.site-title:hover {
    color: var(--primary);
    transform: translateY(-1px);
}

.site-title:focus-visible {
    border-radius: var(--radius-md);
    padding: var(--space-1) var(--space-2);
    margin: calc(-1 * var(--space-1)) calc(-1 * var(--space-2));
}

.logo-icon {
    font-size: var(--text-2xl);
    filter: drop-shadow(0 2px 4px rgba(99, 102, 241, 0.2));
    transition: var(--transition-all);
}

.site-title:hover .logo-icon {
    transform: rotate(-5deg) scale(1.1);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

@media (max-width: 768px) {
    .header-nav {
        gap: var(--space-3);
    }
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: var(--transition-all);
    white-space: nowrap;
}

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

.nav-link:hover {
    color: var(--primary);
    background: var(--bg-secondary);
    transform: translateY(-1px);
}

.nav-link:hover::before {
    width: 70%;
}

.nav-link:focus-visible {
    box-shadow: var(--shadow-focus);
}

@media (max-width: 640px) {
    .nav-link {
        padding: var(--space-1-5) var(--space-2);
        font-size: var(--text-xs);
    }
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-all);
    position: relative;
    overflow: hidden;
}

.dark-mode-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.dark-mode-toggle:focus-visible {
    box-shadow: var(--shadow-focus);
}

.sun-icon,
.moon-icon {
    transition: var(--transition-all);
    position: absolute;
}

.moon-icon {
    display: none;
    transform: rotate(180deg);
}

[data-theme="dark"] .sun-icon {
    display: none;
}

[data-theme="dark"] .moon-icon {
    display: block;
    transform: rotate(0deg);
}

/* Enhanced Hero Section */
.hero-section {
    position: relative;
    padding: var(--space-24) 0 var(--space-20);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

[data-theme="dark"] .hero-section::before {
    background: radial-gradient(circle at 30% 20%, rgba(129, 140, 248, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(129, 140, 248, 0.08) 0%, transparent 50%);
}

[data-theme="dark"] .moon-icon {
    display: block;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    animation: fadeInUp 0.8s ease-out;
}

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

.hero-title {
    font-size: clamp(var(--text-3xl), 8vw, var(--text-6xl));
    font-weight: var(--font-extrabold);
    line-height: 1.1;
    margin: 0 0 var(--space-6);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: var(--text-4xl);
        line-height: 1.2;
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

[data-theme="dark"] .gradient-text {
    background: linear-gradient(135deg, var(--primary-light) 0%, #c4b5fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: clamp(var(--text-lg), 4vw, var(--text-xl));
    color: var(--text-secondary);
    margin: 0 0 var(--space-10);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    margin-bottom: var(--space-16);
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--space-3);
    }
}

.hero-stats {
    display: flex;
    gap: var(--space-12);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .hero-stats {
        gap: var(--space-8);
    }
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: calc(-1 * var(--space-6));
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: var(--border-primary);
}

@media (max-width: 640px) {
    .stat-item:not(:last-child)::after {
        display: none;
    }
}

.stat-number {
    display: block;
    font-size: clamp(var(--text-2xl), 6vw, var(--text-4xl));
    font-weight: var(--font-extrabold);
    color: var(--primary);
    margin-bottom: var(--space-1);
    background: linear-gradient(135deg, var(--primary) 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: var(--font-medium);
}

/* Enhanced Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-all);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    text-align: center;
    min-width: 140px;
    justify-content: center;
}

.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-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:focus-visible {
    box-shadow: var(--shadow-focus), var(--shadow-lg);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--bg-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary:focus-visible {
    box-shadow: var(--shadow-focus);
}

@media (max-width: 640px) {
    .btn {
        width: 100%;
        max-width: 280px;
        padding: var(--space-4) var(--space-6);
    }
}

/* Enhanced Quick Navigation */
.quick-nav {
    padding: var(--space-20) 0;
    background: var(--bg-primary);
    position: relative;
}

.quick-nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
}

.quick-nav-card {
    display: block;
    padding: var(--space-8);
    background: var(--bg-elevated);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-2xl);
    text-decoration: none;
    transition: var(--transition-all);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.quick-nav-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition-all);
    z-index: 0;
}

.quick-nav-card:hover::before {
    opacity: 0.08;
}

.quick-nav-card:hover {
    border-color: var(--primary);
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

.quick-nav-card:focus-visible {
    box-shadow: var(--shadow-focus), var(--shadow-lg);
}

.quick-nav-card > * {
    position: relative;
    z-index: 1;
}

.quick-nav-icon {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
    display: block;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transition: var(--transition-all);
}

.quick-nav-card:hover .quick-nav-icon {
    transform: scale(1.1) rotate(-5deg);
}

.quick-nav-card h3 {
    margin: 0 0 var(--space-3);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.quick-nav-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
}

/* Enhanced Section Styles */
.section {
    padding: var(--space-24) 0;
    position: relative;
}

.section:nth-child(even) {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-20);
    animation: fadeInUp 0.6s ease-out;
}

.section-title {
    font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl));
    font-weight: var(--font-extrabold);
    margin: 0 0 var(--space-6);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.section-description {
    font-size: clamp(var(--text-base), 3vw, var(--text-xl));
    color: var(--text-secondary);
    margin: 0;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* Enhanced Data Tables */
.data-table-container {
    background: var(--bg-elevated);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-primary);
    margin: var(--space-8) 0;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.table-wrapper {
    overflow-x: auto;
    overflow-y: visible;
    border-radius: var(--radius-2xl);
    /* Enable smooth scrolling on touch devices */
    -webkit-overflow-scrolling: touch;
    /* Show scrollbar on hover for better UX */
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--bg-secondary);
}

.table-wrapper::-webkit-scrollbar {
    height: 10px;
}

.table-wrapper::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-lg);
    border: 2px solid var(--bg-secondary);
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

.table-wrapper::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-md);
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
    background: var(--primary-hover);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
    min-width: 600px; /* Ensure minimum width for better mobile experience */
}

th,
td {
    padding: var(--space-4) var(--space-6);
    text-align: left;
    border-bottom: 1px solid var(--border-primary);
    white-space: nowrap;
}

th {
    background: var(--primary);
    color: white;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--text-xs);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

th:first-child {
    position: sticky;
    left: 0;
    z-index: calc(var(--z-sticky) + 1);
    background: var(--primary);
}

tr:hover {
    background: var(--bg-secondary);
}

td {
    transition: all var(--transition-fast);
}

td:first-child {
    font-weight: var(--font-medium);
    position: sticky;
    left: 0;
    background: var(--bg-primary);
    z-index: 1;
}

tr:hover td:first-child {
    background: var(--bg-secondary);
}

/* Status indicators in table cells */
.status-cell {
    text-align: center !important;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.status-indicator.supported {
    background: rgba(14, 236, 162, 0.1);
    color: var(--success);
}

.status-indicator.not-supported {
    background: rgba(211, 29, 29, 0.1);
    color: var(--error);
}

.status-indicator svg {
    width: 16px;
    height: 16px;
}

/* Enhanced Search */
.search-section {
    margin-bottom: var(--space-8);
}

.search-container.enhanced {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

.search-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: var(--space-4) var(--space-12) var(--space-4) var(--space-12);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-full);
    font-size: var(--text-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    outline: none;
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.clear-icon {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    opacity: 0;
    visibility: hidden;
}

.search-input:not(:placeholder-shown) + .clear-icon,
.search-input:focus + .clear-icon {
    opacity: 1;
    visibility: visible;
}

.clear-icon:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

/* Search Results */
.search-results {
    text-align: center;
    padding: var(--space-2) 0;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-4);
}

/* Comparison Section */
.compare-controls {
    display: flex;
    align-items: end;
    gap: var(--space-6);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.compare-select-group {
    flex: 1;
    min-width: 200px;
}

.compare-select-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.select-wrapper {
    position: relative;
}

.select-wrapper::after {
    content: '';
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--text-tertiary);
    pointer-events: none;
}

select {
    width: 100%;
    padding: var(--space-3) var(--space-8) var(--space-3) var(--space-4);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--text-base);
    cursor: pointer;
    appearance: none;
    transition: all var(--transition-fast);
}

select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.compare-vs {
    flex-shrink: 0;
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: var(--primary);
    background: var(--bg-secondary);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border-primary);
    margin-bottom: var(--space-2);
}

/* Comparison Table Container */
#compare-table-container {
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-primary);
    margin-top: var(--space-6);
    display: none;
}

.comparison-visible {
    display: block !important;
    animation: slideIn 0.3s ease-out;
}

.comparison-hiding {
    animation: slideOut 0.3s ease-in;
}

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

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

/* Comparison Header */
.comparison-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-primary);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.comparison-header h3 {
    margin: 0 0 var(--space-4);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
    text-align: center;
}

.comparison-stats {
    display: flex;
    gap: var(--space-6);
    justify-content: center;
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.comparison-stats .stat {
    text-align: center;
    background: var(--bg-primary);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-primary);
    min-width: 100px;
}

.stat-label {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
}

.stat-value {
    display: block;
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--primary);
}

.comparison-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
}

/* Comparison Filters */
.comparison-filters {
    padding: var(--space-4) var(--space-6);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    gap: var(--space-6);
    justify-content: center;
    flex-wrap: wrap;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.filter-option input[type="radio"] {
    margin: 0;
}

/* Filter Results */
.filter-results {
    text-align: center;
    padding: var(--space-2) 0;
    color: var(--text-secondary);
    font-size: var(--text-sm);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
}

/* Comparison Table Specific Styles */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
    min-width: 700px;
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border-primary);
    text-align: center;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
    font-weight: var(--font-medium);
}

.comparison-table th {
    background: var(--primary);
    color: white;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--text-xs);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.provider-header {
    position: relative;
}

.comparison-row.both-supported {
    background: rgba(16, 185, 129, 0.05);
}

.comparison-row.provider1-only {
    background: rgba(59, 130, 246, 0.05);
}

.comparison-row.provider2-only {
    background: rgba(168, 85, 247, 0.05);
}

.comparison-row.neither-supported {
    background: rgba(239, 68, 68, 0.05);
}

.status-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-badge.both-supported {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.status-badge.provider1-only {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
}

.status-badge.provider2-only {
    background: rgba(168, 85, 247, 0.1);
    color: #8b5cf6;
}

.status-badge.neither-supported {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

/* Close Button */
#close-compare {
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-2) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--text-sm);
    color: var(--text-primary);
    font-weight: var(--font-medium);
}

#close-compare:hover {
    background: var(--error);
    color: white;
    border-color: var(--error);
    transform: translateY(-1px);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--space-16);
}

.empty-state-icon {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-4);
}

.empty-state h3 {
    margin: 0 0 var(--space-2);
    font-size: var(--text-xl);
    color: var(--text-primary);
}

.empty-state p {
    margin: 0;
    color: var(--text-secondary);
}

.warning-state {
    text-align: center;
    padding: var(--space-12);
    background: rgba(245, 158, 11, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.warning-icon {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-3);
}

.warning-state h3 {
    margin: 0 0 var(--space-2);
    color: var(--warning);
}

.warning-state p {
    margin: 0;
    color: var(--text-secondary);
}

/* Alert Components */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    margin: var(--space-4) 0;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--info);
}

.alert-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

/* Referral Section */
.referral-section {
    margin-top: var(--space-16);
    padding: var(--space-8);
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-primary);
}

.referral-section h3 {
    margin: 0 0 var(--space-2);
    text-align: center;
    color: var(--text-primary);
}

.referral-section p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.referral-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
}

.referral-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4);
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-fast);
}

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

.service-name {
    font-weight: var(--font-medium);
    color: var(--text-primary);
}

.referral-badge {
    font-size: var(--text-xs);
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-md);
}

/* Status Grid */
.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-6);
}

.status-card {
    display: block;
    padding: var(--space-6);
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    text-decoration: none;
    transition: all var(--transition-normal);
}

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

.status-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.service-name {
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.service-status-indicator {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: var(--success);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.status-indicator.online {
    background: var(--success);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.status-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: var(--text-sm);
}
/* Loading States */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12);
    color: var(--text-secondary);
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-primary);
    border-top: 3px solid var(--primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-4);
}

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

/* Notification System */
.notification-container {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-tooltip);
    max-width: 400px;
    width: 100%;
}

.notification {
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--space-3);
    opacity: 0;
    transform: translateX(100%);
    transition: all var(--transition-normal);
}

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

.notification--dismissing {
    opacity: 0;
    transform: translateX(100%);
}

.notification__content {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
}

.notification__icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.notification__message {
    flex: 1;
    font-size: var(--text-sm);
    color: var(--text-primary);
}

.notification__close {
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.notification__close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

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

.notification--success .notification__icon {
    color: var(--success);
}

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

.notification--error .notification__icon {
    color: var(--error);
}

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

.notification--warning .notification__icon {
    color: var(--warning);
}

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

.notification--info .notification__icon {
    color: var(--info);
}

/* Footer */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    padding: var(--space-16) 0 var(--space-8);
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-section h4 {
    margin: 0 0 var(--space-4);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.footer-section p {
    margin: 0;
    color: var(--text-secondary);
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section li {
    margin-bottom: var(--space-2);
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-primary);
}

.footer-bottom p {
    margin: 0;
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

.footer-bottom a {
    color: var(--primary);
    text-decoration: none;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .comparison-stats {
        gap: var(--space-4);
    }
    
    .comparison-stats .stat {
        min-width: 80px;
        padding: var(--space-2) var(--space-3);
    }
}

@media (max-width: 768px) {
    .header-nav {
        display: none;
    }
    
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-description {
        font-size: var(--text-lg);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        gap: var(--space-6);
    }
    
    .section-title {
        font-size: var(--text-3xl);
    }
    
    .compare-controls {
        flex-direction: column;
    }
    
    .compare-vs {
        align-self: center;
        margin: var(--space-2) 0;
    }
    
    .quick-nav-grid {
        grid-template-columns: 1fr;
    }
    
    .referral-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    /* Enhanced table responsiveness */
    .data-table-container {
        margin: var(--space-2) calc(-1 * var(--space-4));
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
    
    .table-wrapper {
        border-radius: 0;
    }
    
    table {
        font-size: var(--text-xs);
        min-width: 500px;
    }
    
    th,
    td {
        padding: var(--space-2) var(--space-3);
    }
    
    th:first-child,
    td:first-child {
        min-width: 120px;
        max-width: 150px;
        white-space: normal;
        word-break: break-word;
    }
    
    /* Comparison table mobile adjustments */
    .comparison-header {
        padding: var(--space-4);
    }
    
    .comparison-header h3 {
        font-size: var(--text-lg);
    }
    
    .comparison-stats {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .comparison-stats .stat {
        margin: 0 auto;
        max-width: 200px;
    }
    
    .comparison-filters {
        flex-direction: column;
        align-items: center;
        gap: var(--space-3);
    }
    
    .comparison-table {
        min-width: 500px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-xs);
    }
    
    /* Notification adjustments */
    .notification-container {
        left: var(--space-4);
        right: var(--space-4);
        max-width: none;
    }
    
    .notification {
        transform: translateY(-100%);
    }
    
    .notification--visible {
        transform: translateY(0);
    }
    
    .notification--dismissing {
        transform: translateY(-100%);
    }
}

@media (max-width: 480px) {
    .hero-section {
        padding: var(--space-16) 0 var(--space-12);
    }
    
    .section {
        padding: var(--space-12) 0;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
    }
    
    .comparison-stats {
        gap: var(--space-2);
    }
    
    .comparison-stats .stat {
        min-width: 60px;
        padding: var(--space-1) var(--space-2);
    }
    
    .stat-value {
        font-size: var(--text-lg);
    }
    
    .stat-label {
        font-size: 10px;
    }
    
    table {
        min-width: 400px;
    }
    
    th:first-child,
    td:first-child {
        min-width: 100px;
        max-width: 120px;
    }
}

/* Print Styles */
@media print {
    .site-header,
    .hero-section,
    .quick-nav,
    .referral-section,
    .site-footer,
    .back-to-top,
    .dark-mode-toggle,
    .notification-container,
    .comparison-filters,
    .comparison-actions,
    #close-compare {
        display: none !important;
    }
    
    .section {
        page-break-inside: avoid;
    }
    
    .data-table-container {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .table-wrapper {
        overflow: visible;
    }
    
    table {
        min-width: auto;
    }
    
    th,
    td {
        border: 1px solid #000;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .notification {
        transition: none;
    }
}

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

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --border-primary: #000000;
        --text-secondary: #000000;
    }
    
    [data-theme="dark"] {
        --border-primary: #ffffff;
        --text-secondary: #ffffff;
    }
}

/* Loading Overlay */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

[data-theme="dark"] .loading-overlay {
    background: rgba(15, 23, 42, 0.9);
}

.loading-overlay--visible {
    opacity: 1;
    visibility: visible;
}

.loading-overlay--hiding {
    opacity: 0;
}

.loading-content {
    text-align: center;
    color: var(--text-primary);
}

.spinner-ring {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-primary);
    border-top: 4px solid var(--primary);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-3);
}

.loading-text {
    margin: 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}