:root {
     --bg: #09090b;
     --text: #f3f0ec;
     --dim: #a8a29e;
     --muted: #78716c;
     --accent: #336774;
     --accent-bright: #7db7c4;
     --border: #292524;
     --card-bg: #0c0a09;
     --max-width: 1060px;
     --article-width: 820px;
     --ease: cubic-bezier(0.16, 1, 0.3, 1);
 }

 * { margin: 0; padding: 0; box-sizing: border-box; outline: none; }
 html { scroll-behavior: smooth; background-color: var(--bg); }
 body {
     background:
         radial-gradient(circle at 12% 0%, rgba(51, 103, 116, 0.25), transparent 34rem),
         radial-gradient(circle at 84% 18%, rgba(125, 183, 196, 0.13), transparent 28rem),
         var(--bg);
     color: var(--text);
     font-family: 'Plus Jakarta Sans', sans-serif;
     font-size: 17px;
     line-height: 1.7;
     font-weight: 400;
     -webkit-font-smoothing: antialiased;
     overflow-x: hidden;
 }
 a { color: inherit; text-decoration: none; transition: all 0.3s var(--ease); }
 p a, li a { color: var(--accent-bright); border-bottom: 1px solid rgba(125, 183, 196, 0.34); }
 p a:hover, li a:hover { color: var(--text); border-color: var(--text); }
 .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
 .article { max-width: var(--article-width); }

 #nav {
     position: fixed; top: 0; left: 0; width: 100%; height: 72px; z-index: 1000;
     background: rgba(9, 9, 11, 0.92); backdrop-filter: blur(16px);
     border-bottom: 1px solid var(--border); display: flex; align-items: center;
 }
 .nav-inner { width: 100%; display: flex; justify-content: space-between; align-items: center; }
 .nav-logo { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; display: flex; align-items: center; gap: 14px; }
 .nav-logo img { width: 32px; height: 32px; }
 .nav-right { display: flex; align-items: center; gap: 32px; }
 .nav-links { display: flex; gap: 24px; }
 .nav-links a, .footer-links a, .eyebrow, .meta, .btn-download-sm, .btn-solid, .btn-outline {
     font-family: 'JetBrains Mono', monospace; font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em;
 }
 .nav-links a, .footer-links a { color: var(--dim); }
 .nav-links a:hover, .footer-links a:hover { color: var(--text); }
 .btn-download-sm { font-size: 12px; font-weight: 500; background: var(--accent); color: var(--text); padding: 10px 20px; display: flex; align-items: center; }
 .btn-download-sm::before { content: '\2192'; margin-right: 8px; }
 .btn-download-sm:hover { filter: brightness(1.1); }

 main { padding-top: 72px; }
 .hero { padding: 118px 0 74px; border-bottom: 1px solid var(--border); position: relative; }
 .hero::after { content: ''; position: absolute; left: 50%; bottom: -1px; width: min(720px, 72vw); height: 1px; transform: translateX(-50%); background: linear-gradient(90deg, transparent, var(--accent-bright), transparent); }
 .eyebrow { color: var(--accent-bright); display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
 .eyebrow::before { content: ''; width: 6px; height: 6px; background: currentColor; transform: rotate(45deg); }
 h1 { font-size: clamp(44px, 8vw, 92px); line-height: 0.98; font-weight: 400; letter-spacing: -0.045em; max-width: 900px; }
 .lede { color: var(--dim); font-size: 20px; line-height: 1.65; max-width: 760px; margin-top: 28px; }
 .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
 .btn-solid, .btn-outline { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 22px; font-size: 12px; }
 .btn-solid { background: var(--text); color: var(--bg); }
 .btn-outline { border: 1px solid var(--border); color: var(--text); background: rgba(255,255,255,0.02); }
 .btn-solid:hover { transform: translateY(-2px); }
 .btn-outline:hover { border-color: var(--accent-bright); color: var(--accent-bright); }
 .meta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; color: var(--muted); }
 .meta span { border: 1px solid var(--border); padding: 8px 10px; background: rgba(12,10,9,0.65); }

 .content { padding: 78px 0 112px; }
 .content-grid { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 58px; align-items: start; }
 article h2 { font-size: clamp(30px, 4vw, 48px); font-weight: 400; letter-spacing: -0.035em; line-height: 1.08; margin: 58px 0 18px; }
 article h2:first-child { margin-top: 0; }
 article h3 { font-size: 22px; font-weight: 500; letter-spacing: -0.01em; margin: 32px 0 10px; }
 article p, article li { color: var(--dim); }
 article p { margin: 0 0 18px; }
 article ul, article ol { margin: 16px 0 24px 22px; }
 article li { margin-bottom: 10px; }
 .answer-card, .callout, .step-card, .link-card {
     border: 1px solid var(--border); background: rgba(12, 10, 9, 0.74); box-shadow: 0 20px 60px rgba(0,0,0,0.22);
 }
 .answer-card { padding: 26px; margin: 24px 0; }
 .answer-card strong { color: var(--text); font-weight: 500; }
 .callout { padding: 24px; margin: 34px 0; background: linear-gradient(135deg, rgba(51,103,116,0.22), rgba(12,10,9,0.7)); }
 .callout p:last-child { margin-bottom: 0; }
 .cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 28px 0; }
 .step-card, .link-card { padding: 22px; }
 .step-card h3, .link-card h3 { margin-top: 0; }
 .toc { position: sticky; top: 104px; border: 1px solid var(--border); padding: 20px; background: rgba(9,9,11,0.72); }
 .toc-title { color: var(--accent-bright); margin-bottom: 14px; }
 .toc a { display: block; color: var(--dim); font-size: 14px; padding: 8px 0; border-top: 1px solid rgba(41,37,36,0.64); }
 .toc a:hover { color: var(--text); }
 .related { padding-top: 42px; border-top: 1px solid var(--border); margin-top: 58px; }
 .related h2 { margin-top: 0; }
 footer { padding: 80px 0; border-top: 1px solid var(--border); }
 .footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
 .copy { font-family: 'JetBrains Mono', monospace; font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
 .footer-links { display: flex; gap: 32px; flex-wrap: wrap; }

 @media (max-width: 900px) {
     .nav-links { display: none; }
     .hero { padding-top: 78px; }
     .content-grid { grid-template-columns: 1fr; }
     .toc { position: static; }
     .cards { grid-template-columns: 1fr; }
     .footer-inner { flex-direction: column; text-align: center; }
     .footer-links { justify-content: center; gap: 20px; }
 }