/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', system-ui, sans-serif;
    color: #1a1a2e;
    line-height: 1.6;
    background: #fafbff;
    -webkit-font-smoothing: antialiased;
}
a { color: #4f46e5; text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* Nav */
nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(250, 251, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e5e7f0;
    padding: 14px 0;
}
.nav-inner {
    max-width: 1100px; margin: 0 auto; padding: 0 24px;
    display: flex; justify-content: space-between; align-items: center;
}
.logo {
    font-size: 16px; font-weight: 700; letter-spacing: 0.15em;
    text-transform: uppercase; text-decoration: none;
    background: #1a1a2e; padding: 6px 14px; border-radius: 6px;
    display: inline-flex; gap: 4px;
}
.logo:hover { text-decoration: none; }
.logo-sky { color: #a5b4fc; }
.logo-lang { color: #64748b; font-weight: 500; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { color: #64748b; font-size: 14px; font-weight: 500; text-decoration: none; }
.nav-links a:hover { color: #1a1a2e; }
.btn-nav {
    background: #1a1a2e; color: #fff !important; padding: 6px 16px;
    border-radius: 6px; font-size: 13px; font-weight: 600;
}
.btn-nav:hover { background: #2d2d4e; text-decoration: none; }

/* Hero */
.hero {
    text-align: center; padding: 100px 24px 60px;
    background: linear-gradient(180deg, #f0f0ff 0%, #fafbff 100%);
}
.hero h1 {
    font-size: clamp(36px, 6vw, 64px); font-weight: 800;
    letter-spacing: -1.5px; line-height: 1.1;
    background: linear-gradient(135deg, #1a1a2e 0%, #4f46e5 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 18px; color: #64748b; margin: 20px auto 0;
    max-width: 560px; line-height: 1.7;
}
.hero-install {
    display: inline-flex; align-items: center; gap: 8px;
    background: #1a1a2e; color: #a5b4fc; padding: 12px 20px;
    border-radius: 8px; margin: 32px 0 24px; font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 14px;
}
.hero-install button {
    background: none; border: none; color: #a5b4fc; cursor: pointer;
    padding: 4px; border-radius: 4px;
}
.hero-install button:hover { background: rgba(255,255,255,0.1); }
.hero-actions { display: flex; gap: 12px; justify-content: center; }

/* Buttons */
.btn {
    display: inline-block; padding: 12px 28px; border-radius: 8px;
    font-size: 15px; font-weight: 600; text-decoration: none; transition: all 0.15s;
}
.btn-primary { background: #4f46e5; color: #fff; }
.btn-primary:hover { background: #4338ca; text-decoration: none; }
.btn-outline { border: 1.5px solid #d1d5db; color: #374151; background: #fff; }
.btn-outline:hover { border-color: #9ca3af; text-decoration: none; }
.btn-lg { padding: 14px 36px; font-size: 16px; }

/* Code Section */
.code-section { padding: 80px 0; }
.code-grid {
    display: grid; grid-template-columns: 1.3fr 1fr; gap: 48px; align-items: center;
}
.code-block {
    background: #1a1a2e; border-radius: 12px; overflow: hidden;
    box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}
.code-header {
    display: flex; align-items: center; gap: 6px;
    padding: 12px 16px; background: #12122a;
}
.code-dot { width: 10px; height: 10px; border-radius: 50%; }
.code-dot.red { background: #ff5f57; }
.code-dot.yellow { background: #febc2e; }
.code-dot.green { background: #28c840; }
.code-title { margin-left: 8px; color: #64748b; font-size: 12px; font-family: monospace; }
.code-block pre {
    padding: 20px; margin: 0; overflow-x: auto;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 13px; line-height: 1.7; color: #e2e8f0;
}
.code-desc h2 { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
.code-desc p { color: #64748b; font-size: 16px; margin-bottom: 16px; }
.code-desc ul { list-style: none; padding: 0; }
.code-desc li {
    padding: 6px 0; color: #475569; font-size: 15px;
    padding-left: 24px; position: relative;
}
.code-desc li::before {
    content: ''; position: absolute; left: 0; top: 14px;
    width: 8px; height: 8px; border-radius: 50%; background: #4f46e5;
}

/* Syntax highlighting */
.kw { color: #c084fc; }
.ty { color: #67e8f9; }
.str { color: #86efac; }
.num { color: #fbbf24; }
.cm { color: #64748b; font-style: italic; }

/* Multi-backend UI */
.backends { padding: 80px 0; background: #fff; }
.backends .section-subtitle code {
    background: #eef2ff; color: #4f46e5; padding: 1px 6px; border-radius: 4px;
    font-family: 'SF Mono', 'Fira Code', monospace; font-size: 14px;
}
.backend-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.backend-card {
    padding: 24px; border-radius: 12px;
    background: #fafbff; border: 1px solid #e5e7f0;
    display: flex; flex-direction: column; gap: 14px;
    transition: box-shadow 0.2s;
}
.backend-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.backend-head {
    display: flex; align-items: center; justify-content: space-between;
}
.backend-card h3 {
    font-size: 18px; font-weight: 700; color: #1a1a2e; margin: 0;
}
.backend-tag {
    font-size: 11px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.05em; color: #4f46e5;
    background: #eef2ff; padding: 4px 10px; border-radius: 12px;
}
.backend-card pre {
    background: #1a1a2e; border-radius: 8px; padding: 14px;
    margin: 0; overflow-x: auto;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 12.5px; line-height: 1.7; color: #e2e8f0;
}
.backend-card p {
    color: #64748b; font-size: 13.5px; line-height: 1.6; margin: 0;
}
.backend-card p code {
    background: #eef2ff; color: #4f46e5; padding: 1px 5px; border-radius: 3px;
    font-family: 'SF Mono', 'Fira Code', monospace; font-size: 12px;
}

/* Features */
.features { padding: 80px 0; background: #fff; }
.section-title {
    font-size: 32px; font-weight: 700; text-align: center; margin-bottom: 48px;
}
.feature-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.feature {
    padding: 28px; border-radius: 12px; border: 1px solid #e5e7f0;
    background: #fafbff; transition: box-shadow 0.2s;
}
.feature:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.feature-icon {
    width: 44px; height: 44px; border-radius: 10px;
    background: #eef2ff; display: flex; align-items: center; justify-content: center;
    color: #4f46e5; margin-bottom: 16px;
}
.feature h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature p { color: #64748b; font-size: 14px; line-height: 1.6; }

/* Examples section */
.examples-section { padding: 80px 0; }
.examples-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.example-card {
    background: #1a1a2e; border-radius: 10px; padding: 20px; overflow: hidden;
}
.example-card h3 {
    color: #a5b4fc; font-size: 13px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px;
}
.example-card pre {
    margin: 0; font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 12.5px; line-height: 1.6; color: #e2e8f0;
}

/* Stats */
.stats { padding: 60px 0; background: #fff; }
.stats-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center;
}
.stat-num {
    display: block; font-size: 36px; font-weight: 800; color: #4f46e5;
}
.stat-label {
    display: block; font-size: 14px; color: #64748b; margin-top: 4px;
}

/* Built with Sky / Projects */
.projects { padding: 80px 0; background: #fafbff; }
.section-subtitle {
    text-align: center; color: #64748b; font-size: 16px;
    margin: -32px auto 48px; max-width: 600px;
}
.project-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.project-card {
    display: flex; flex-direction: column; gap: 12px;
    padding: 24px; border-radius: 12px;
    background: #fff; border: 1px solid #e5e7f0;
    color: #1a1a2e; text-decoration: none;
    transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}
.project-card:hover {
    text-decoration: none; transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.10);
    border-color: #c7d2fe;
}
.project-head {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.project-card h3 {
    font-size: 18px; font-weight: 700; color: #1a1a2e; margin: 0;
}
.project-tag {
    font-size: 11px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 0.05em; color: #4f46e5;
    background: #eef2ff; padding: 4px 10px; border-radius: 12px;
}
.project-card p {
    color: #64748b; font-size: 14px; line-height: 1.6; flex-grow: 1;
}
.project-link {
    font-size: 13px; color: #4f46e5; font-weight: 500;
    font-family: 'SF Mono', 'Fira Code', monospace;
}

/* CTA */
.cta {
    padding: 80px 0; text-align: center;
    background: linear-gradient(180deg, #fafbff 0%, #f0f0ff 100%);
}
.cta h2 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.cta p { color: #64748b; font-size: 16px; margin-bottom: 32px; }
.cta-code {
    display: inline-block; background: #1a1a2e; border-radius: 10px;
    padding: 20px 28px; margin-bottom: 28px; text-align: left;
}
.cta-code pre {
    margin: 0; font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 14px; line-height: 1.8; color: #a5b4fc;
}

/* Footer */
footer {
    padding: 28px 0; border-top: 1px solid #e5e7f0; background: #fff;
}
.footer-inner {
    display: flex; justify-content: space-between; align-items: center;
}
.footer-left { display: flex; align-items: center; gap: 16px; }
.footer-copy { color: #94a3b8; font-size: 13px; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: #64748b; font-size: 13px; }
.footer-links a:hover { color: #1a1a2e; }

/* Responsive */
@media (max-width: 768px) {
    .code-grid { grid-template-columns: 1fr; }
    .feature-grid { grid-template-columns: 1fr; }
    .examples-grid { grid-template-columns: 1fr; }
    .project-grid { grid-template-columns: 1fr; }
    .backend-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .hero { padding: 60px 24px 40px; }
    .hero-install { font-size: 12px; }
    .footer-inner { flex-direction: column; gap: 12px; }
}