*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #09090b; --bg-card: #111113; --bg-elevated: #18181b; --bg-code: #0d1117;
  --border: #27272a; --border-subtle: #1c1c1f;
  --accent: #0891b2; --accent-hover: #0e7490;
  --accent-dim: rgba(8,145,178,0.1); --accent-border: rgba(8,145,178,0.3);
  --text: #fafafa; --text-muted: #a1a1aa; --text-dim: #52525b;
  --green: #22c55e; --radius: 12px; --radius-sm: 8px;
}
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
code, pre { font-family: 'JetBrains Mono', 'Fira Code', monospace; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
nav { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--border-subtle); background: rgba(9,9,11,0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 1.05rem; font-weight: 700; letter-spacing: -0.02em; white-space: nowrap; }
.nav-logo .accent { color: var(--accent); }
.nav-links { display: flex; gap: 18px; align-items: center; }
.nav-links a { font-size: 0.86rem; color: var(--text-muted); transition: color 0.15s; white-space: nowrap; }
.nav-links a:hover { color: var(--text); }
.nav-cta { background: var(--accent); color: white !important; padding: 7px 16px; border-radius: var(--radius-sm); font-weight: 500; transition: background 0.15s; }
.nav-cta:hover { background: var(--accent-hover) !important; }
.nav-outline { border: 1px solid var(--border); color: var(--text-muted) !important; padding: 6px 14px; border-radius: var(--radius-sm); font-weight: 500; transition: border-color 0.15s, color 0.15s; }
.nav-outline:hover { border-color: var(--text-muted); color: var(--text) !important; }
.hero { padding: 70px 0 20px; text-align: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: var(--accent-dim); border: 1px solid var(--accent-border); color: var(--accent); padding: 5px 14px; border-radius: 999px; font-size: 0.78rem; font-weight: 500; letter-spacing: 0.02em; margin-bottom: 14px; }
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero h1 { font-size: clamp(2.1rem, 4.5vw, 3.1rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.03em; max-width: 820px; margin: 0 auto 10px; }
.hero h1 .highlight { color: var(--accent); }
.hero .sub { font-size: 1.02rem; color: var(--text-muted); max-width: 620px; margin: 0 auto 26px; line-height: 1.6; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-mockup { max-width: 800px; margin: 36px auto 0; text-align: center; }
.hero-mockup svg, .hero-mockup img { border-radius: var(--radius); border: 1px solid var(--border); width: 100%; height: auto; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: var(--accent); color: white; padding: 13px 26px; border-radius: var(--radius-sm); font-size: 0.925rem; font-weight: 500; transition: background 0.15s, transform 0.1s; border: none; cursor: pointer; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-secondary { display: inline-flex; align-items: center; gap: 8px; background: transparent; color: var(--text); border: 1px solid var(--border); padding: 13px 26px; border-radius: var(--radius-sm); font-size: 0.925rem; font-weight: 500; transition: border-color 0.15s, background 0.15s; cursor: pointer; }
.btn-secondary:hover { border-color: var(--text-muted); background: var(--bg-elevated); }
.section-header { text-align: center; margin-bottom: 52px; }
.section-tag { display: inline-block; font-size: 0.74rem; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.section-header h2 { font-size: clamp(1.5rem, 3.2vw, 2rem); font-weight: 700; letter-spacing: -0.02em; margin-bottom: 10px; }
.section-header p { font-size: 0.92rem; color: var(--text-muted); max-width: 600px; margin: 0 auto; }
.domain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.domain-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px; }
.domain-card .dom-icon { font-size: 1.6rem; margin-bottom: 10px; display: block; }
.domain-card h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 6px; }
.domain-card p { font-size: 0.84rem; color: var(--text-muted); line-height: 1.6; }
.modules-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.mod-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.mod-card h4 { font-size: 0.9rem; font-weight: 600; color: var(--accent); margin-bottom: 6px; }
.mod-card p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.55; }
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.benefit-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 22px; display: flex; gap: 14px; align-items: flex-start; }
.benefit-card .benefit-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 3px; }
.benefit-card h4 { font-size: 0.92rem; font-weight: 600; margin-bottom: 5px; }
.benefit-card p { font-size: 0.83rem; color: var(--text-muted); line-height: 1.55; }
.standards-table { width: 100%; max-width: 800px; margin: 0 auto; border-collapse: collapse; }
.standards-table th { text-align: left; font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.09em; color: var(--text-dim); padding: 12px 16px 8px; border-bottom: 1px solid var(--border); }
.standards-table td { padding: 10px 16px; font-size: 0.87rem; border-bottom: 1px solid var(--border-subtle); color: var(--text-muted); }
.standards-table td:first-child { color: var(--text); font-weight: 500; }
.standards-badges { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 14px; }
.stdBadge { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-elevated); border: 1px solid var(--border); padding: 6px 14px; border-radius: 999px; font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }
.stdBadge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.cta-band { background: var(--bg-card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 60px 0; text-align: center; }
.cta-band h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.02em; }
.cta-band p { font-size: 0.92rem; color: var(--text-muted); margin-bottom: 24px; }
.ai-strip { text-align: center; padding: 44px 0; }
.ai-strip p { font-size: 0.9rem; color: var(--text-muted); }
.ai-strip a { color: var(--accent); font-weight: 500; }
.ai-strip a:hover { text-decoration: underline; }
footer { border-top: 1px solid var(--border-subtle); padding: 36px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 14px; }
.footer-logo { font-weight: 700; font-size: 0.92rem; }
.footer-logo .accent { color: var(--accent); }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { font-size: 0.81rem; color: var(--text-muted); transition: color 0.15s; }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: 0.76rem; color: var(--text-dim); }
@media (max-width: 768px) { .section { padding: 60px 0; } .domain-grid, .modules-grid { grid-template-columns: 1fr; } .nav-links { display: none; } .footer-inner { flex-direction: column; align-items: flex-start; } .hero h1 { font-size: 1.7rem; } }