:root {
    --primary: #3b82f6;
    --primary-dark: #1e3a8a;
    --secondary: #10b981;
    --accent: #f59e0b;
    --bg-dark: #0a0a0f;
    --bg-card: #16161f;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --border: #27272a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.5rem;
}

.logo-img {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease, filter 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 10px var(--primary));
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-primary {
    background: var(--primary);
    color: white !important;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.15) 0%, transparent 50%);
    z-index: -1;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--secondary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-hero:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    color: white;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
    transition: all 0.3s;
}

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

.hero-stats {
    display: flex;
    gap: 4rem;
    justify-content: center;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* Features */
.features {
    padding: 8rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.feature-tech {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--accent);
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

/* Architecture */
.architecture {
    padding: 8rem 0;
    background: linear-gradient(180deg, transparent 0%, rgba(59, 130, 246, 0.05) 100%);
}

.arch-diagram {
    max-width: 800px;
    margin: 0 auto 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.arch-layer {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    width: 100%;
}

.arch-layer.cloud {
    border-color: var(--primary);
}

.arch-layer.edge {
    border-color: var(--secondary);
}

.layer-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
}

.layer-components {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.component {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
}

.arch-arrow {
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.arch-arrow::before {
    content: '↓';
    font-size: 2rem;
    color: var(--primary);
}

.arrow-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

.arch-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.arch-feature {
    text-align: center;
}

.arch-feature strong {
    display: block;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.arch-feature p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Code Section */
.code-section {
    padding: 8rem 0;
}

.code-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.code-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.code-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.code-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-text strong {
    display: block;
    margin-bottom: 0.25rem;
}

.step-text span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.code-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 1rem;
    overflow: hidden;
}

.code-header {
    display: flex;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.code-block pre {
    padding: 1.5rem;
    overflow-x: auto;
}

.code-block code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.8;
}

.comment {
    color: #6b7280;
}

.command {
    color: var(--primary);
    font-weight: 600;
}

.output {
    color: var(--secondary);
}

/* CTA */
.cta {
    padding: 8rem 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(16, 185, 129, 0.1) 100%);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-cta {
    background: var(--primary);
    color: white;
    padding: 1.25rem 2.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
    transition: all 0.3s;
}

.btn-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.4);
}

.btn-cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-card);
    color: white;
    padding: 1.25rem 2.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
    transition: all 0.3s;
}

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

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .code-grid {
        grid-template-columns: 1fr;
    }

    .arch-features {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    /* Keep language switcher visible on mobile if it's there */
    .nav-content .lang-switcher {
        display: flex;
    }
}