@font-face{font-family:"Inter";font-weight:400 900;font-display:optional;src:url(/fonts/inter-latin.woff2)format("woff2");unicode-range:U+0000-00FF}
@font-face{font-family:"Inter Fallback";src:local("Arial");size-adjust:107.4%;ascent-override:90%;descent-override:22.48%;line-gap-override:0%}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Inter","Inter Fallback",-apple-system,BlinkMacSystemFont,sans-serif;background:#f1f5f9;color:#1e293b;-webkit-font-smoothing:antialiased;line-height:1.65}
.header{background:#1a202c;padding:14px 28px;display:flex;align-items:center;gap:18px;box-shadow:0 2px 8px rgba(0,0,0,.3)}
.logo{color:#fff;font-size:19px;font-weight:800;text-decoration:none}.logo span{color:#4fd1c5}
.spacer{flex:1}.nav-link{color:#cbd5e0;text-decoration:none;font-size:14px}.nav-link:hover{color:#fff}
main{max-width:760px;margin:0 auto;padding:36px 22px 80px}
.crumbs{font-size:13px;color:#94a3b8;margin-bottom:16px}.crumbs a{color:#0f766e;text-decoration:none}
.meta{font-size:13px;color:#64748b;margin-bottom:22px}
h1{font-size:38px;font-weight:900;color:#0f172a;letter-spacing:-.025em;line-height:1.15;margin-bottom:16px}
h2{font-size:24px;font-weight:800;color:#0f172a;letter-spacing:-.015em;margin:36px 0 12px}
h3{font-size:18px;font-weight:700;color:#0f172a;margin:24px 0 8px}
p{margin-bottom:16px;color:#334155}
ul,ol{margin:0 0 16px 22px;color:#334155}
li{margin-bottom:6px}
strong{color:#0f172a}
code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;background:#f1f5f9;padding:2px 6px;border-radius:4px;color:#0f172a}
pre{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13.5px;background:#0f172a;color:#e2e8f0;padding:16px 18px;border-radius:10px;overflow-x:auto;line-height:1.6;margin:16px 0}
pre code{background:none;color:inherit;padding:0}
.lead{font-size:18px;color:#475569;margin-bottom:28px}
.callout{background:#fff;border-left:4px solid #14b8a6;border-radius:8px;padding:18px 22px;margin:22px 0;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.callout strong{color:#0f766e}
.warn{background:#fff7ed;border-left-color:#ea580c}.warn strong{color:#c2410c}
.cta-box{background:linear-gradient(135deg,#0f172a 0%,#1a2540 100%);color:#fff;border-radius:14px;padding:26px 28px;margin:30px 0;text-align:center}
.cta-box h3{color:#fff;margin:0 0 8px}.cta-box p{color:#94a3b8;margin-bottom:14px}
.cta-box a{display:inline-block;padding:11px 22px;background:#14b8a6;color:#fff;border-radius:999px;text-decoration:none;font-weight:700}
.cta-box a:hover{background:#0d9488}
.toc{background:#fff;border-radius:10px;padding:20px 24px;margin:28px 0;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.toc h2{font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:#475569;margin:0 0 10px;font-weight:700}
.toc ol{margin:0 0 0 18px}
.toc a{color:#0f766e;text-decoration:none}.toc a:hover{text-decoration:underline}
.author-card{background:#fff;border-radius:12px;padding:22px 24px;margin-top:40px;display:flex;align-items:center;gap:16px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.author-name{font-weight:700;color:#0f172a}.author-meta{font-size:13px;color:#64748b}
.author-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(140deg,#14b8a6,#0f766e);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px;flex-shrink:0}
table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
th{background:#f1f5f9;padding:10px 12px;text-align:left;font-weight:700;border-bottom:1px solid #e2e8f0}
td{padding:10px 12px;border-bottom:1px solid #f1f5f9}
.faq{background:#fff;border-radius:10px;padding:18px 22px;margin:14px 0;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.faq summary{font-weight:700;color:#0f172a;cursor:pointer;font-size:16px;padding:6px 0}
.faq[open] summary{margin-bottom:8px;border-bottom:1px solid #e2e8f0;padding-bottom:10px}
.faq summary::-webkit-details-marker{color:#0f766e}
@media(max-width:640px){h1{font-size:28px}h2{font-size:20px}main{padding:24px 16px 60px}}