/* Flagent Design System */
:root {
    /* Primary colors (Sky Blue) */
    --color-primary: #0EA5E9;
    --color-primary-dark: #0284C7;
    --color-primary-light: #38BDF8;
    
    /* Secondary colors (Teal) */
    --color-secondary: #14B8A6;
    --color-secondary-dark: #0D9488;
    --color-secondary-light: #5EEAD4;
    
    /* Accent colors */
    --color-accent: #F59E0B;
    
    /* Background colors */
    --color-bg: #FFFFFF;
    --color-bg-alt: #F8FAFC;
    --color-bg-dark: #F1F5F9;
    
    /* Background pattern */
    --bg-pattern: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%230EA5E9' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    
    /* Text colors */
    --color-text: #0F172A;
    --color-text-light: #64748B;
    --color-text-lighter: #94A3B8;
    
    /* Border colors */
    --color-border: #E2E8F0;
    
    /* Status colors */
    --color-success: #10B981;
    --color-error: #EF4444;
    --color-warning: #F59E0B;
    --color-info: #3B82F6;
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    background-image: var(--bg-pattern);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(14, 165, 233, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(20, 184, 166, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(245, 158, 11, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-30px, 30px) rotate(240deg); }
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md, 12px);
}

.logo::before {
    content: '';
    display: block;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    border-radius: 9999px;
    background: url("assets/flagent.png") center/contain no-repeat;
    box-shadow: var(--shadow-md);
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.nav-links a:hover {
    color: var(--color-primary);
}

.nav-links a.active {
    color: var(--color-primary);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text);
    transition: background var(--transition-base);
}

.nav-toggle:hover {
    background: var(--color-bg-alt);
}

.nav-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    margin: 0 auto;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.navbar.nav-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.navbar.nav-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
}

.navbar.nav-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-github {
    color: var(--color-text-light);
}

.lang-switcher {
    display: flex;
    gap: 0;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: 2px;
}

.lang-btn {
    background: transparent;
    border: none;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-btn:hover {
    color: var(--color-text);
}

.lang-btn.active {
    background: white;
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    border: none;
    cursor: pointer;
}

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

/* Hero Section */
.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 25% 25%, rgba(14, 165, 233, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(20, 184, 166, 0.06) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero-buttons-center {
    justify-content: center;
    gap: 0.75rem;
}

.logo-link {
    text-decoration: none;
}

.features-grid-docs {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.feature-card.link-card {
    text-decoration: none;
    color: inherit;
}

.quickstart-inline {
    max-width: 700px;
    margin: 0 auto;
}

.quickstart-code-block {
    margin-bottom: 1.5rem;
}

.quickstart-note {
    margin-bottom: 1rem;
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.quickstart-note-last {
    margin-bottom: 1.5rem;
}

.quickstart-note code {
    background: var(--color-bg-dark);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9em;
}

.quickstart-inline .cta-code {
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
}

.quickstart-inline .cta-code pre {
    color: var(--color-text);
}

.cloud-teaser-box {
    max-width: 560px;
    margin: 0 auto;
    opacity: 0.95;
}

.cloud-teaser-text {
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.cloud-teaser-text-last {
    margin-bottom: 1.5rem;
}

.btn-primary-large {
    background: var(--color-primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
}

.btn-primary-large:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary-large {
    background: white;
    color: var(--color-text);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all var(--transition-base);
    border: 2px solid var(--color-border);
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--color-text-light);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.hero-badge {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(14, 165, 233, 0.1);
    padding: 0.375rem 0.875rem;
    border-radius: 9999px;
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.02em;
}

.hero-tagline {
    font-size: 1.375rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.hero-visual {
    margin-top: var(--spacing-2xl);
    display: flex;
    justify-content: center;
}

.hero-visual-inner {
    max-width: 560px;
    width: 100%;
}

.hero-illustration {
    width: 100%;
    height: auto;
    max-height: 320px;
}

/* macOS-style window frame — как на лендинге: колонка titlebar + content */
.mac-window {
    display: flex;
    flex-direction: column;
    background: #ebecee;
    border-radius: 12px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.12);
}

.mac-window-titlebar {
    display: flex;
    align-items: center;
    gap: 12px;
    height: 40px;
    min-height: 40px;
    padding: 0 16px 0 12px;
    background: linear-gradient(180deg, #ebebef 0%, #d1d1d6 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.12);
    flex-shrink: 0;
}

.mac-traffic-lights {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.mac-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.mac-dot-red   { background: #ff5f57; }
.mac-dot-yellow { background: #febc2e; }
.mac-dot-green { background: #28c840; }

.mac-window-title {
    flex: 1;
    text-align: center;
    font-size: 13px;
    color: #3d3d3d;
    font-weight: 500;
}

.mac-window-content {
    flex: 0 1 auto;
    min-height: 200px;
    max-height: 360px;
    overflow: hidden;
    border-radius: 0 0 11px 11px;
    background: #1e1e1e;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.mac-window-content .hero-illustration,
.mac-window-content .hero-screenshot {
    width: 100%;
    height: auto;
    max-height: 360px;
    object-fit: contain;
    object-position: top center;
    display: block;
    border: none;
    border-radius: 0;
    box-shadow: none;
    vertical-align: top;
}

.btn-github {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Why Flagent */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.why-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.why-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.why-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.why-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.why-card p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* Pricing page — full-width layout */
body.pricing-page {
    background: #f1f5f9;
}

body.pricing-page::before {
    display: none;
}

/* Pricing hero — gradient like landing CTA */
.pricing-hero-wrap {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.pricing-hero-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255,255,255,0.08) 0%, transparent 45%);
    pointer-events: none;
}

.pricing-hero {
    padding: 0;
    position: relative;
    z-index: 1;
}

.pricing-hero .section-title {
    font-size: 2.75rem;
    font-weight: 800;
    color: white;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.pricing-hero .section-subtitle {
    max-width: 560px;
    margin: 0 auto;
    font-size: 1.125rem;
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
}

/* Cards section — on light background */
.pricing-cards-wrap {
    padding: var(--spacing-3xl) 0;
    margin-top: calc(-1 * var(--spacing-xl));
    position: relative;
    z-index: 2;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    max-width: 1100px;
    margin: 0 auto var(--spacing-2xl);
    align-items: stretch;
}

@media (max-width: 960px) {
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
}

.pricing-card {
    background: white;
    padding: 2rem 1.75rem;
    border-radius: 1rem;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    position: relative;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.pricing-card.highlighted {
    border: 2px solid var(--color-primary);
    box-shadow: 0 8px 32px rgba(14, 165, 233, 0.2);
}

.pricing-card.highlighted:hover {
    box-shadow: 0 24px 48px rgba(14, 165, 233, 0.25);
}

.pricing-card .pricing-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    opacity: 0.9;
}

.pricing-card.highlighted .pricing-icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    opacity: 1;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.25);
}

.pricing-card .pricing-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.35rem 0.65rem;
    border-radius: 6px;
    background: rgba(14, 165, 233, 0.15);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.pricing-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.pricing-card .price {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.pricing-card.highlighted .price {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-card .pricing-desc {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.55;
    margin-bottom: 1.5rem;
    flex-grow: 0;
    min-height: 2.8em;
}

.pricing-card ul {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    flex-grow: 1;
}

.pricing-card ul li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0;
    font-size: 0.9375rem;
    color: var(--color-text);
}

.pricing-card ul li::before {
    content: '';
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2310B981'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E") center/contain no-repeat;
}

.pricing-card .btn {
    display: block;
    width: 100%;
    padding: 0.875rem 1.5rem;
    text-align: center;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    margin-top: auto;
}

.pricing-card .btn-primary-card {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
}

.pricing-card .btn-primary-card:hover {
    filter: brightness(1.05);
    color: white;
    transform: translateY(-1px);
}

.pricing-card .btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.pricing-card .btn-outline:hover {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-primary-dark);
}

.pricing-cta {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.pricing-cta .btn-primary {
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    font-weight: 600;
}

/* SDKs teaser */
.sdks-teaser {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.sdk-teaser-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.sdk-badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    background: var(--color-bg-alt);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.sdk-badge.enhanced {
    background: rgba(14, 165, 233, 0.1);
    color: var(--color-primary);
    border-color: rgba(14, 165, 233, 0.3);
}

.section-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
}

.cta-box {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: white;
}

.cta-subtitle {
    font-size: 1.125rem;
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

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

.cta-section .btn-primary-large {
    background: white;
    color: var(--color-primary);
}

.cta-section .btn-primary-large:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary-dark);
}

.cta-section .btn-secondary-large {
    border-color: rgba(255, 255, 255, 0.8);
    color: white;
}

.cta-section .btn-secondary-large:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
    color: white;
}

.cta-code {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    display: inline-block;
}

.cta-code pre {
    margin: 0;
    color: white;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
}

.feature-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    opacity: 0.9;
    flex-shrink: 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* Features Section */
.features-section {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--color-bg-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-description {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* API Section */
.api-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-alt);
}

.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.api-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.api-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.api-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.api-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.api-description {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.api-description code {
    background: var(--color-bg-alt);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    color: var(--color-primary);
}

.api-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
    display: inline-block;
    margin-right: var(--spacing-md);
}

.api-link:hover {
    color: var(--color-primary-dark);
}

.api-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.api-note {
    display: block;
    margin-top: var(--spacing-sm);
    color: var(--color-text-lighter);
    font-size: 0.875rem;
}

/* Quick Start Section */
.quickstart-section {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.quickstart-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.quickstart-code {
    background: var(--color-bg-dark);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.quickstart-code pre {
    margin: 0;
    color: var(--color-text);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

.quickstart-code code {
    color: var(--color-text);
}

.quickstart-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.quickstart-info ul {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.quickstart-info li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-light);
    position: relative;
    padding-left: var(--spacing-md);
}

.quickstart-info li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* SDKs Section */
.sdks-section {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-alt);
}

.sdks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.sdk-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    text-align: center;
}

.sdk-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.sdk-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.sdk-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.sdk-description {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.sdk-link {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
}

.sdk-link:hover {
    color: var(--color-primary-dark);
}

/* Community Section */
.community-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    text-align: center;
}

.community-content {
    max-width: 800px;
    margin: 0 auto;
}

.community-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.community-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.community-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.community-buttons .btn-primary-large {
    background: white;
    color: var(--color-primary);
}

.community-buttons .btn-primary-large:hover {
    background: var(--color-bg-alt);
    transform: translateY(-2px);
}

.community-buttons .btn-secondary-large {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.community-buttons .btn-secondary-large:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.community-links {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

.community-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    opacity: 0.9;
    transition: opacity var(--transition-base);
}

.community-links a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Footer */
.footer {
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    background: var(--color-bg-dark);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.footer-description {
    color: var(--color-text-light);
    line-height: 1.6;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    color: var(--color-text-light);
}

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

.footer-social a {
    color: var(--color-text-light);
    transition: color var(--transition-base);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .navbar .nav-content {
        position: relative;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-md);
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        display: none;
    }
    
    .navbar.nav-open .nav-links {
        display: flex;
    }
    
    .nav-links a {
        padding: 0.75rem 1rem;
        border-radius: var(--radius-md);
    }
    
    .nav-links a:hover {
        background: var(--color-bg-alt);
    }
    
    .lang-switcher {
        margin: 0.25rem 0;
    }
    
    .hero-buttons,
    .community-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-primary-large,
    .btn-secondary-large {
        justify-content: center;
    }
    
    .quickstart-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
}

/* Page Header */
.page-header {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    text-align: center;
    position: relative;
    z-index: 1;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* Content Sections */
.content-section {
    padding: var(--spacing-3xl) 0;
    position: relative;
    z-index: 1;
}

.content-section.bg-alt {
    background: rgba(248, 250, 252, 0.95);
    position: relative;
}

.content-section.bg-alt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(135deg, rgba(14, 165, 233, 0.03) 0%, transparent 50%),
        linear-gradient(225deg, rgba(20, 184, 166, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.content-box {
    max-width: 900px;
    margin: 0 auto;
}

.content-box h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.content-box p {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.content-box code {
    background: var(--color-bg-dark);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    color: var(--color-primary);
}

/* SDK Types */
.sdk-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.sdk-type-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.sdk-type-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.sdk-type-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.sdk-type-card p {
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
}

/* SDK Details */
.sdk-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.sdk-detail-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.sdk-detail-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.sdk-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.sdk-header .sdk-icon {
    font-size: 2.5rem;
}

.sdk-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--color-text);
}

.sdk-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-success);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: var(--spacing-sm);
}

.sdk-description {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.sdk-info {
    margin-bottom: var(--spacing-md);
}

.info-item {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    align-items: baseline;
}

.info-item strong {
    color: var(--color-text);
    min-width: 100px;
}

.info-item span,
.info-item code {
    color: var(--color-text-light);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
}

.sdk-links {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.btn-secondary {
    background: white;
    color: var(--color-text);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-base);
    border: 2px solid var(--color-border);
    display: inline-block;
}

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

/* Enhanced Features */
.enhanced-features,
.debug-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.feature-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.feature-item h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.feature-item p {
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
}

/* Quick Start Options */
.quickstart-option {
    max-width: 1000px;
    margin: 0 auto;
}

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

.option-number {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.option-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    color: var(--color-text);
}

.option-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
}

.step {
    margin-bottom: var(--spacing-xl);
}

.step h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.step p {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.step-note {
    display: block;
    margin-top: var(--spacing-sm);
    color: var(--color-text-lighter);
    font-size: 0.875rem;
    font-style: italic;
}

/* Code Blocks */
.code-block {
    position: relative;
    background: var(--color-bg-dark);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-md) 0;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    color: var(--color-text);
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

.code-block code {
    color: var(--color-text);
    font-family: inherit;
}

.copy-btn {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.copy-btn:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

/* Credentials Box */
.credentials-box {
    background: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.credential-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.credential-item:last-child {
    margin-bottom: 0;
}

.credential-item strong {
    color: var(--color-text);
    min-width: 100px;
}

.credential-item code {
    background: var(--color-bg-dark);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: 'Monaco', 'Courier New', monospace;
    color: var(--color-primary);
}

/* Access Links */
.access-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.access-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.access-item strong {
    color: var(--color-text);
    min-width: 120px;
}

.access-item a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-base);
}

.access-item a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Requirements List */
.requirements-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.requirement-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
}

.requirement-item strong {
    color: var(--color-text);
    min-width: 120px;
    font-weight: 600;
}

.requirement-item span {
    color: var(--color-text-light);
    flex: 1;
}

/* Config Options */
.config-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.config-option h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

/* Next Steps */
.next-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.next-step {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.next-step:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.next-step h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.next-step p {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

/* Troubleshooting */
.troubleshooting-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.trouble-item {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--color-warning);
}

.trouble-item h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.trouble-item p {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.trouble-item:last-child p {
    margin-bottom: 0;
}