/* ============================================
   XVariant Landing Page V3 - Visual Theme
   "Scientific precision meets AI evolution"
   ============================================ */

/* ============================================
   CSS Variables - Color Palette
   ============================================ */
:root {
    /* Primary Colors */
    --color-navy: #0D1117;
    --color-graphite: #101820;
    --color-slate: #1E293B;
    --color-steel: #475569;
    
    /* Accent Colors */
    --color-cyan: #00E0FF;
    --color-violet: #7A5CFF;
    --color-gradient: linear-gradient(135deg, #00E0FF 0%, #7A5CFF 100%);
    
    /* Neutrals */
    --color-white: #F8FAFC;
    --color-gray-light: #CBD5E1;
    --color-gray: #64748B;
    
    /* Status Colors */
    --color-success: #16A34A;
    --color-error: #EF4444;
    --color-warning: #F59E0B;
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
    --spacing-2xl: 3.5rem;
    --spacing-3xl: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 20px rgba(0, 224, 255, 0.3);
    
    /* Transitions */
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --transition-duration: 400ms;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-navy);
    color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-light);
    font-size: 1.125rem;
    line-height: 1.7;
}

a {
    color: var(--color-cyan);
    text-decoration: none;
    transition: all var(--transition-duration) var(--transition-smooth);
}

a:hover {
    color: var(--color-violet);
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-duration) var(--transition-smooth);
}

.header.scrolled {
    background: rgba(13, 17, 23, 0.95);
    box-shadow: var(--shadow-lg);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-text {
    color: var(--color-white);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--color-gray-light);
    font-size: 0.938rem;
    font-weight: 500;
    transition: color var(--transition-duration) var(--transition-smooth);
}

.nav-link:hover {
    color: var(--color-white);
}

.nav-cta {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle span {
    width: 1.5rem;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-duration) var(--transition-smooth);
}

/* ============================================
   Buttons
   ============================================ */
.btn-primary,
.btn-secondary,
.btn-tertiary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.938rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-duration) var(--transition-smooth);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-cyan);
    color: var(--color-navy);
    font-weight: 600;
}

.btn-primary:hover {
    background: #00c9e6;
    color: var(--color-navy);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-tertiary {
    background: transparent;
    color: var(--color-cyan);
    padding: 0.75rem 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-tertiary:hover {
    color: var(--color-violet);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    padding-bottom: var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: -50px;
    z-index: 0;
}

#heroCanvas {
    width: 100%;
    height: 100%;
    opacity: 0.4;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text {
    max-width: 580px;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
    line-height: 1.15;
    font-size: clamp(2.25rem, 4.5vw, 3.5rem);
}

.title-line {
    display: block;
}

.gradient-text {
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.2rem);
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.65;
    max-width: 560px;
}

.hero-ctas {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    align-items: center;
}

.social-proof {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    opacity: 0.8;
}

.social-proof-text {
    color: var(--color-gray);
    font-size: 0.875rem;
}

.social-proof-logos {
    display: flex;
    gap: var(--spacing-sm);
}

.company-badge {
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.813rem;
    color: var(--color-gray-light);
}

/* ============================================
   Dashboard Mockup (Hero Visual)
   ============================================ */
.hero-visual {
    position: relative;
}

.dashboard-mockup {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.dashboard-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dashboard-tabs {
    display: flex;
    gap: var(--spacing-sm);
}

.tab {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-gray);
    cursor: pointer;
    transition: all var(--transition-duration) var(--transition-smooth);
    user-select: none;
}

.tab:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-white);
}

.tab.active {
    background: rgba(0, 224, 255, 0.1);
    color: var(--color-cyan);
}

.tab-panel {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

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

.dashboard-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    min-height: 360px;
    position: relative;
}

.experiment-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

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

.experiment-name {
    font-weight: 600;
    color: var(--color-white);
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success {
    background: rgba(22, 163, 74, 0.2);
    color: var(--color-success);
}

.badge-running {
    background: rgba(0, 224, 255, 0.2);
    color: var(--color-cyan);
}

.badge-inline {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    background: rgba(122, 92, 255, 0.2);
    color: var(--color-violet);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
}

.metric-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-cyan);
    font-family: var(--font-mono);
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #00E0FF 0%, #7A5CFF 100%);
    width: 75%;
}

.genetic-viz {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.generation {
    font-size: 0.875rem;
    color: var(--color-gray);
    font-family: var(--font-mono);
}

.gen-number {
    color: var(--color-cyan);
    font-weight: 700;
}

.nodes {
    display: flex;
    gap: 0.5rem;
}

/* Observation Tab Styles */
.observation-header {
    margin-bottom: 0.375rem;
    padding: 0 0.75rem;
}

.obs-title {
    font-size: 0.8125rem;
    color: var(--color-white);
    font-weight: 600;
    margin-bottom: 0.375rem;
}

.obs-legend {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: 0.375rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-label {
    font-size: 0.75rem;
    color: var(--color-gray);
}

.observation-chart {
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.5rem;
    margin-bottom: 0.5rem;
    min-height: 100px;
}

.observation-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.375rem;
    padding: 0 0.25rem;
}

.obs-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 0.375rem 0.25rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-sm);
}

.obs-value {
    font-size: 1.0625rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: 0.125rem;
}

.obs-label {
    font-size: 0.6875rem;
    color: var(--color-gray);
    line-height: 1.1;
}

/* Optimize Tab Styles */
.optimization-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    min-height: 240px;
}

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

.opt-title {
    font-weight: 600;
    color: var(--color-white);
}

.opt-progress {
    margin-bottom: var(--spacing-md);
}

.opt-label {
    font-size: 0.813rem;
    color: var(--color-gray);
    display: block;
    margin-bottom: 0.5rem;
}

.opt-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.opt-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #00E0FF 0%, #7A5CFF 100%);
}

.opt-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.opt-metric {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.opt-metric-label {
    font-size: 0.75rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.opt-metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-cyan);
    font-family: var(--font-mono);
}

/* ============================================
   Problem/Solution Section
   ============================================ */
.problem-solution {
    background: linear-gradient(180deg, transparent 0%, rgba(30, 41, 59, 0.3) 100%);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: var(--spacing-xl);
    color: var(--color-white);
}

.section-title.center {
    text-align: center;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.comparison-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-duration) var(--transition-smooth);
}

.comparison-card.highlight {
    background: rgba(0, 224, 255, 0.05);
    border-color: var(--color-cyan);
    box-shadow: 0 0 20px rgba(0, 224, 255, 0.2);
}

.comparison-card:hover {
    transform: translateY(-4px);
}

.comparison-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.comparison-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.comparison-list li {
    font-size: 1.125rem;
    color: var(--color-gray-light);
}

/* ============================================
   Sticky Scroll Features Section
   ============================================ */
.sticky-features {
    background: rgba(16, 24, 32, 0.5);
    position: relative;
    padding: var(--spacing-2xl) 0;
}

.sticky-features section {
    padding: 0;
}

.feature-graphic {
    background: rgba(30, 41, 59, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 500px;
    margin: 0 auto;
}

.feature-graphic svg {
    max-width: 100%;
    height: auto;
}

/* ============================================
   How It Works Section
   ============================================ */
.how-it-works {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.3) 0%, transparent 100%);
}

.steps {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.step {
    display: grid;
    grid-template-columns: auto 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    opacity: 0;
    transform: translateX(-30px);
}

.step-number {
    font-family: var(--font-mono);
    font-size: 3rem;
    font-weight: 700;
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.step-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.step-description {
    font-size: 1.125rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-md);
}

.step-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.step-list li {
    font-size: 0.938rem;
    color: var(--color-gray-light);
    padding-left: 1.5rem;
    position: relative;
}

.step-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
}

.step-visual {
    position: relative;
}

/* Code Window Styling */
.code-window {
    background: rgba(13, 17, 23, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.window-header {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.75rem;
    display: flex;
    gap: 0.5rem;
}

.window-dot {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
}

.window-dot.red { background: #EF4444; }
.window-dot.yellow { background: #F59E0B; }
.window-dot.green { background: #16A34A; }

.window-content {
    padding: var(--spacing-md);
}

.window-content pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--color-gray-light);
}

.window-content code {
    font-family: var(--font-mono);
}

.code-keyword {
    color: var(--color-violet);
}

.code-function {
    color: var(--color-cyan);
}

.code-string {
    color: var(--color-success);
}

/* Result Card */
.result-card {
    background: rgba(22, 163, 74, 0.1);
    border: 1px solid var(--color-success);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

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

.result-status {
    font-weight: 700;
    color: var(--color-success);
}

.result-confidence {
    font-family: var(--font-mono);
    color: var(--color-cyan);
}

.result-metric,
.result-guardrails {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.938rem;
}

.result-value {
    font-weight: 700;
    color: var(--color-white);
}

.chart-container {
    background: rgba(13, 17, 23, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.results-chart {
    width: 100%;
    max-width: 400px;
    height: auto;
}

.chart-line-treatment,
.chart-point-treatment {
    animation: chartDraw 2s ease-out forwards;
}

@keyframes chartDraw {
    from {
        stroke-dasharray: 1000;
        stroke-dashoffset: 1000;
        opacity: 0;
    }
    to {
        stroke-dasharray: 1000;
        stroke-dashoffset: 0;
        opacity: 1;
    }
}

/* ============================================
   Features Grid Section
   ============================================ */
.features-grid {
    background: rgba(16, 24, 32, 0.5);
}

.features-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature-column {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.feature-column.highlight {
    background: rgba(0, 224, 255, 0.05);
    border-color: var(--color-cyan);
}

.feature-column-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.feature-list li {
    font-size: 0.938rem;
    color: var(--color-gray-light);
    line-height: 1.6;
}

/* ============================================
   Use Cases Section
   ============================================ */
.use-cases {
    background: linear-gradient(180deg, transparent 0%, rgba(30, 41, 59, 0.3) 100%);
}

.tabs {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-gray-light);
    font-size: 0.938rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-duration) var(--transition-smooth);
}

.tab-button.active {
    background: rgba(0, 224, 255, 0.1);
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

.tab-button:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.tab-content.active {
    display: block;
}

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

.use-case-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.use-case-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.use-case-description {
    font-size: 1.125rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-lg);
}

.testimonial {
    background: rgba(255, 255, 255, 0.03);
    border-left: 3px solid var(--color-cyan);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.testimonial-text {
    font-size: 1rem;
    font-style: italic;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-sm);
}

.company-logo {
    font-weight: 600;
    color: var(--color-cyan);
}

.stat-card {
    background: rgba(0, 224, 255, 0.1);
    border: 2px solid var(--color-cyan);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
}

.stat-value {
    font-size: 4rem;
    font-weight: 700;
    font-family: var(--font-mono);
    background: var(--color-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 1.125rem;
    color: var(--color-gray-light);
}

/* ============================================
   Comparison Table Section
   ============================================ */
.comparison-table {
    background: rgba(16, 24, 32, 0.5);
}

.table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

.comparison {
    width: 100%;
    border-collapse: collapse;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
}

.comparison thead {
    background: rgba(255, 255, 255, 0.05);
}

.comparison th,
.comparison td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison th {
    font-weight: 600;
    color: var(--color-white);
    font-size: 0.938rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison td {
    color: var(--color-gray-light);
}

.comparison th.highlight,
.comparison td.highlight {
    background: rgba(0, 224, 255, 0.05);
    color: var(--color-cyan);
    font-weight: 600;
}

.comparison-highlights {
    background: rgba(0, 224, 255, 0.05);
    border: 1px solid var(--color-cyan);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
}

.comparison-highlights h3 {
    font-size: 1.25rem;
    color: var(--color-cyan);
    margin-bottom: var(--spacing-md);
}

.comparison-highlights ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.comparison-highlights li {
    font-size: 1rem;
    color: var(--color-gray-light);
    padding-left: 1.5rem;
    position: relative;
}

.comparison-highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
    font-weight: 700;
}

/* ============================================
   Pricing Section
   ============================================ */
.pricing {
    background: linear-gradient(180deg, rgba(30, 41, 59, 0.3) 0%, transparent 100%);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.pricing-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    transition: all var(--transition-duration) var(--transition-smooth);
}

.pricing-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-cyan);
}

.pricing-card.featured {
    background: rgba(0, 224, 255, 0.05);
    border-color: var(--color-cyan);
    box-shadow: 0 0 30px rgba(0, 224, 255, 0.2);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-md);
    background: var(--color-gradient);
    color: var(--color-white);
    padding: 0.25rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.pricing-header {
    margin-bottom: var(--spacing-lg);
}

.pricing-tier {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.price {
    font-size: 3rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-cyan);
}

.period {
    font-size: 1rem;
    color: var(--color-gray);
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    min-height: 200px;
}

.pricing-features li {
    font-size: 0.938rem;
    color: var(--color-gray-light);
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-cyan);
    font-weight: 700;
}

.pricing-note {
    text-align: center;
    color: var(--color-gray);
    font-size: 0.938rem;
}

/* ============================================
   Integrations Section
   ============================================ */
.integrations {
    background: rgba(16, 24, 32, 0.5);
}

.integration-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.integration-category {
    text-align: center;
}

.integration-title {
    font-size: 1.125rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

.integration-logos {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.integration-badge {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-gray-light);
    font-size: 0.938rem;
    transition: all var(--transition-duration) var(--transition-smooth);
}

.integration-badge:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-cyan);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ============================================
   Trust & Security Section
   ============================================ */
.trust {
    background: linear-gradient(180deg, transparent 0%, rgba(30, 41, 59, 0.3) 100%);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.trust-badge {
    text-align: center;
    padding: var(--spacing-lg);
}

.trust-icon {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.trust-icon svg {
    width: 40px;
    height: 40px;
}

.trust-title {
    font-size: 1.125rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.trust-description {
    font-size: 0.938rem;
    color: var(--color-gray);
}

/* ============================================
   Final CTA Section
   ============================================ */
.final-cta {
    background: linear-gradient(135deg, rgba(0, 224, 255, 0.1) 0%, rgba(122, 92, 255, 0.1) 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.cta-help {
    color: var(--color-gray);
    font-size: 0.938rem;
}

.link-inline {
    color: var(--color-cyan);
    text-decoration: underline;
}

.link-inline:hover {
    color: var(--color-violet);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: rgba(16, 24, 32, 0.8);
    padding: var(--spacing-3xl) 0 var(--spacing-lg) 0;
    position: relative;
    overflow: hidden;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-brand-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-display);
    font-size: clamp(6rem, 25vw, 20rem);
    font-weight: 700;
    color: transparent;
    background: linear-gradient(135deg, rgba(0, 224, 255, 0.08) 0%, rgba(122, 92, 255, 0.08) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    white-space: nowrap;
    pointer-events: none;
    user-select: none;
    z-index: 0;
}

.footer .container {
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    font-size: 0.875rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-gray);
    font-size: 0.938rem;
    transition: color var(--transition-duration) var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--color-cyan);
}

.footer-bottom {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    color: var(--color-gray);
    font-size: 0.875rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    color: var(--color-gray);
    font-size: 0.875rem;
    transition: color var(--transition-duration) var(--transition-smooth);
}

.social-link:hover {
    color: var(--color-cyan);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-text {
        max-width: 100%;
        text-align: center;
        margin: 0 auto;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .social-proof {
        justify-content: center;
    }
    
    .use-case-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .value-props-grid,
    .features-columns,
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        grid-template-columns: 1fr;
    }
    
    .step-number {
        font-size: 2rem;
    }
    
    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: var(--spacing-xl);
    }
    
    
    .hero-ctas {
        flex-direction: column;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .table-wrapper {
        font-size: 0.813rem;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .integration-logos {
        font-size: 0.813rem;
    }
}

/* ============================================
   Contact Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-duration) var(--transition-smooth),
                visibility var(--transition-duration) var(--transition-smooth);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-graphite);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 480px;
    width: 90%;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform var(--transition-duration) var(--transition-smooth);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    color: var(--color-gray);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: color var(--transition-duration) var(--transition-smooth),
                background-color var(--transition-duration) var(--transition-smooth);
}

.modal-close:hover {
    color: var(--color-white);
    background-color: rgba(255, 255, 255, 0.1);
}

.modal-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.modal-description {
    color: var(--color-gray);
    font-size: 0.938rem;
    margin-bottom: var(--spacing-lg);
}

.email-container {
    display: flex;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.email-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-white);
    font-family: var(--font-mono);
    font-size: 0.938rem;
    outline: none;
    transition: border-color var(--transition-duration) var(--transition-smooth);
}

.email-input:focus {
    border-color: var(--color-cyan);
}

.btn-copy {
    background: var(--color-gradient);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 0.938rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: transform var(--transition-duration) var(--transition-smooth),
                box-shadow var(--transition-duration) var(--transition-smooth);
    white-space: nowrap;
}

.btn-copy:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 224, 255, 0.3);
}

.btn-copy:active {
    transform: translateY(0);
}

.btn-copy svg {
    width: 20px;
    height: 20px;
}

.btn-copy.copied {
    background: var(--color-success);
}

@media (max-width: 768px) {
    .modal-content {
        padding: var(--spacing-lg);
    }
    
    .email-container {
        flex-direction: column;
    }
    
    .btn-copy {
        justify-content: center;
    }

    .footer-brand-bg {
        font-size: 4rem;
    }

    .modal-content {
        width: 95%;
        padding: var(--spacing-lg);
    }

    .modal-title {
        font-size: 1.25rem;
    }
}

/* ============================================
   Contact Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--color-slate);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--color-gray);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.modal-description {
    color: var(--color-gray);
    margin-bottom: var(--spacing-lg);
}

.email-container {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.email-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--color-white);
    font-family: var(--font-mono);
    font-size: 0.938rem;
}

.email-input:focus {
    outline: none;
    border-color: var(--color-cyan);
}

.btn-copy {
    background: var(--color-cyan);
    color: var(--color-navy);
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.btn-copy:hover {
    background: #00c9e6;
}

.btn-copy.copied {
    background: var(--color-success);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

/* ============================================
   Animations & Transitions
   ============================================ */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Smooth scrolling for all browsers */
html {
    scroll-behavior: smooth;
}

/* Selection styling */
::selection {
    background: rgba(0, 224, 255, 0.3);
    color: var(--color-white);
}

::-moz-selection {
    background: rgba(0, 224, 255, 0.3);
    color: var(--color-white);
}