/* ===========================
   Stori Website - New Styles
   Modern, clean, mobile-responsive
   =========================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-tertiary: #1a1a25;
    --color-bg-card: #16161f;
    --color-text: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #6a6a7a;
    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;
    --color-accent: #22d3ee;
    --color-accent-purple: #a855f7;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.12);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #22d3ee 100%);
    --gradient-card: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(168, 85, 247, 0.05) 100%);
    --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 50%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
    
    /* Spacing */
    --section-padding: 120px;
    --container-width: 1280px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
}

/* ===========================
   Navigation
   =========================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(10, 10, 15, 0.95);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.version-badge {
    font-size: 0.65rem;
    font-weight: 500;
    padding: 3px 8px;
    background: var(--gradient-primary);
    border-radius: 20px;
    color: white;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.nav-menu a:hover {
    color: var(--color-text);
}

.nav-actions {
    display: flex;
    gap: 12px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition-fast);
}

/* ===========================
   Buttons
   =========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(99, 102, 241, 0.4);
    color: white;
}

.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn.disabled:hover {
    transform: none;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    border: 1px solid var(--color-border-light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-border-light);
    color: var(--color-text);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.btn-xl {
    padding: 20px 40px;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
}

.btn-badge {
    font-size: 0.7rem;
    font-weight: 500;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    margin-left: 4px;
}

.btn-icon {
    font-size: 1.1em;
}

/* ===========================
   Hero Section
   =========================== */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 140px 0 80px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    pointer-events: none;
}

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

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 30px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-primary-light);
    margin-bottom: 32px;
}

.badge-icon {
    font-size: 1.1rem;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.1;
}

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

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.hero-stats .stat {
    text-align: center;
}

.hero-stats .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    font-family: var(--font-mono);
}

.hero-stats .stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.hero-visual {
    margin-top: 60px;
}

.screenshot-container {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
}

.screenshot-placeholder {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-placeholder.small {
    aspect-ratio: 16 / 10;
    max-width: 100%;
}

.screenshot-placeholder.large {
    aspect-ratio: 16 / 9;
}

.screenshot-placeholder.ai-screenshot {
    aspect-ratio: 4 / 3;
    margin-top: 20px;
}

.screenshot-placeholder.download-screenshot {
    aspect-ratio: 1 / 1;
    max-width: 300px;
}

.placeholder-content {
    text-align: center;
    padding: 32px;
    color: var(--color-text-muted);
}

.placeholder-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 16px;
    opacity: 0.5;
}

.placeholder-content p {
    font-size: 0.9rem;
    max-width: 300px;
    margin: 0 auto;
}

.screenshot-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: var(--gradient-primary);
    filter: blur(100px);
    opacity: 0.15;
    pointer-events: none;
    z-index: -1;
}

/* ===========================
   Value Props Section
   =========================== */
.value-props {
    padding: 80px 0;
    background: var(--color-bg-secondary);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.value-card {
    padding: 32px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

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

.value-icon-wrapper {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-card);
    border-radius: var(--radius-md);
}

.value-icon {
    font-size: 2rem;
}

.value-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
}

.value-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===========================
   Section Headers
   =========================== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header.light {
    color: var(--color-text);
}

.section-label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-primary-light);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===========================
   Features Section
   =========================== */
.features {
    padding: var(--section-padding) 0;
}

.features-showcase {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.feature-block-right .feature-visual {
    order: -1;
}

.feature-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary-light);
    background: rgba(99, 102, 241, 0.1);
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.feature-content h3 {
    font-size: 1.75rem;
    margin-bottom: 16px;
}

.feature-content p {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.feature-list .check {
    color: var(--color-success);
    font-weight: 700;
}

/* Effects Grid */
.effects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-top: 24px;
}

.effect-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.effect-item:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
}

.effect-icon {
    font-size: 1.5rem;
}

/* ===========================
   Instruments Section
   =========================== */
.instruments {
    padding: var(--section-padding) 0;
    background: var(--color-bg-secondary);
}

.instruments-showcase {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.instruments-visual {
    max-width: 900px;
    margin: 0 auto;
}

.instruments-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.instrument-category {
    padding: 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.instrument-category:hover {
    border-color: var(--color-border-light);
}

.instrument-category h4 {
    font-size: 1.05rem;
    margin-bottom: 16px;
    color: var(--color-text);
}

.instrument-category ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.instrument-category li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding-left: 20px;
    position: relative;
}

.instrument-category li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* ===========================
   AI Section
   =========================== */
.ai-section {
    padding: var(--section-padding) 0;
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
}

.ai-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.ai-card {
    padding: 32px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.ai-card:hover {
    border-color: var(--color-primary);
}

.ai-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.ai-icon {
    font-size: 2rem;
}

.ai-card-header h3 {
    font-size: 1.3rem;
}

.ai-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    background: rgba(99, 102, 241, 0.2);
    color: var(--color-primary-light);
    border-radius: 20px;
    margin-left: auto;
}

.ai-card > p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.ai-example {
    background: var(--color-bg-tertiary);
    padding: 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.ai-example code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-accent);
}

.ai-features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 16px;
    margin-bottom: 20px;
}

.ai-features li {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    padding-left: 20px;
    position: relative;
}

.ai-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 700;
}

.ai-local-banner {
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 24px;
}

.banner-icon {
    font-size: 3rem;
    flex-shrink: 0;
}

.banner-text h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.banner-text p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

/* ===========================
   Blockchain Section
   =========================== */
.blockchain {
    padding: var(--section-padding) 0;
}

.blockchain-overview {
    margin-bottom: 60px;
}

.blockchain-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.blockchain-stat {
    text-align: center;
    padding: 24px 32px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    min-width: 140px;
}

.stat-icon {
    display: block;
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-primary-light);
}

.stat-desc {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* Tier System */
.tier-system {
    display: flex;
    align-items: stretch;
    gap: 24px;
    margin-bottom: 60px;
}

.tier-card {
    flex: 1;
    padding: 32px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.tier-card.master {
    border-color: var(--color-warning);
}

.tier-card.instances {
    border-color: var(--color-accent);
}

.tier-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.tier-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    background: var(--color-primary);
    color: white;
    border-radius: 20px;
}

.tier-icon {
    font-size: 1.5rem;
}

.tier-card h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.tier-standard {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    margin-bottom: 12px;
}

.tier-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.tier-features {
    list-style: none;
    margin-bottom: 20px;
}

.tier-features li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border);
}

.tier-features li:last-child {
    border-bottom: none;
}

.tier-example {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    background: var(--color-bg-tertiary);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
}

.tier-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-text-muted);
    flex-shrink: 0;
}

/* License Types */
.license-types {
    margin-bottom: 60px;
}

.license-types h3 {
    text-align: center;
    font-size: 1.3rem;
    margin-bottom: 32px;
}

.license-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.license-card {
    padding: 24px 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.license-card:hover {
    border-color: var(--color-primary);
}

.license-card.featured {
    border-color: var(--color-accent-purple);
    background: rgba(168, 85, 247, 0.05);
}

.license-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.license-number {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.license-price {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary-light);
    font-family: var(--font-mono);
}

.license-card h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.license-card p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* Marketplace Preview */
.marketplace-preview {
    text-align: center;
}

.marketplace-caption {
    margin-top: 16px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

/* ===========================
   Technology Section
   =========================== */
.technology {
    padding: var(--section-padding) 0;
    background: var(--color-bg-secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.tech-category {
    padding: 32px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.tech-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.tech-category h3 {
    font-size: 1.2rem;
    margin-bottom: 24px;
}

.tech-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tech-item strong {
    display: block;
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.tech-item p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.performance-specs {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.spec {
    text-align: center;
    padding: 24px;
}

.spec-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-accent);
    margin-bottom: 8px;
}

.spec-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ===========================
   Roadmap Section
   =========================== */
.roadmap {
    padding: var(--section-padding) 0;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-bottom: 48px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -40px;
    top: 4px;
    width: 18px;
    height: 18px;
    background: var(--color-bg);
    border: 3px solid var(--color-text-muted);
    border-radius: 50%;
    z-index: 1;
}

.timeline-item.completed .timeline-marker {
    background: var(--color-success);
    border-color: var(--color-success);
}

.timeline-item.current .timeline-marker {
    background: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.5);
}

.timeline-content {
    padding: 24px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.timeline-date {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.timeline-content ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timeline-content li {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding-left: 20px;
    position: relative;
}

.timeline-content li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

/* ===========================
   Download Section
   =========================== */
.download {
    padding: var(--section-padding) 0;
    background: var(--color-bg-secondary);
}

.download-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
    padding: 60px;
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.download-content h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.download-content > p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

.download-requirements {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.requirement {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.download-actions {
    margin-bottom: 16px;
}

.download-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.download-note a {
    text-decoration: underline;
}

/* ===========================
   Contact Section
   =========================== */
.contact {
    padding: 80px 0;
}

.contact-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.contact-card {
    padding: 32px 48px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    text-align: center;
    min-width: 200px;
    transition: all var(--transition-base);
}

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

.contact-card.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.contact-card.disabled:hover {
    border-color: var(--color-border);
    transform: none;
}

.contact-icon {
    display: block;
    font-size: 2rem;
    margin-bottom: 16px;
}

.contact-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* ===========================
   Footer
   =========================== */
.footer {
    padding: 60px 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

.footer-content {
    text-align: center;
}

.footer-brand {
    margin-bottom: 24px;
}

.footer-logo {
    font-size: 1.3rem;
    font-weight: 700;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-top: 8px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.footer-disclaimer {
    max-width: 700px;
    margin: 0 auto 24px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.footer-copyright {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ===========================
   Mobile Responsive
   =========================== */
@media (max-width: 1200px) {
    .value-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .instruments-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .license-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    :root {
        --section-padding: 80px;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: 16px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        padding: 12px 0;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .feature-block {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .feature-block-right .feature-visual {
        order: 0;
    }
    
    .ai-grid {
        grid-template-columns: 1fr;
    }
    
    .tier-system {
        flex-direction: column;
    }
    
    .tier-arrow {
        transform: rotate(90deg);
        padding: 16px 0;
    }
    
    .license-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download-requirements {
        justify-content: center;
    }
    
    .download-visual {
        display: flex;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 100px;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .hero-stats .stat-value {
        font-size: 1.5rem;
    }
    
    .value-grid {
        grid-template-columns: 1fr;
    }
    
    .effects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .instruments-grid {
        grid-template-columns: 1fr;
    }
    
    .blockchain-stats {
        gap: 16px;
    }
    
    .blockchain-stat {
        min-width: 100px;
        padding: 16px;
    }
    
    .license-grid {
        grid-template-columns: 1fr;
    }
    
    .performance-specs {
        gap: 16px;
    }
    
    .spec {
        padding: 16px;
    }
    
    .download-card {
        padding: 40px 24px;
    }
    
    .banner-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .ai-features {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        flex-direction: column;
    }
    
    .contact-card {
        width: 100%;
    }
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll animations (add via JS) */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

.screenshot-container img, .screenshot-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* or 'contain' depending on your preference */
    border-radius: var(--radius-xl);
    display: block;
}

/* Hide placeholder content when image is present */
.screenshot-placeholder:has(img) .placeholder-content {
    display: none;
}