:root{--bg:#07090c;--card:#10151f;--text:#f1f6ff;--muted:#a9b4cc;--line:#223046;--accent:#ff6b35;--accent2:#58d7ff;--warn:#ffd166;}
*{box-sizing:border-box} html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,"Helvetica Neue",Arial,sans-serif;background:radial-gradient(1200px 520px at 12% -10%, rgba(255,107,53,.22), transparent 55%), radial-gradient(900px 520px at 92% 0%, rgba(88,215,255,.18), transparent 55%), linear-gradient(180deg,#06070a,#07090c);color:var(--text)}
a{color:inherit;text-decoration:none} a:hover{opacity:.92}
.wrap{max-width:1100px;margin:0 auto;padding:0 18px}
.nav{position:sticky;top:0;z-index:20;background:rgba(6,7,10,.78);backdrop-filter: blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0}
.brand{font-weight:900;letter-spacing:.35px}
.nav-links{display:flex;gap:14px;flex-wrap:wrap}
.nav-links a{padding:8px 10px;border-radius:10px;border:1px solid transparent}
.nav-links a:hover{border-color:var(--line);background:rgba(255,255,255,.03)}
.hero{padding:28px 0 14px}
.hero h1{margin:0 0 10px;font-size:36px;line-height:1.1}
.hero p{margin:0 0 16px;color:var(--muted);font-size:16px}
.badges{display:flex;gap:10px;flex-wrap:wrap}
.badge{font-size:12px;padding:6px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:rgba(255,255,255,.02)}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.card{grid-column:span 4;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:18px;padding:16px}
.card h3{margin:4px 0 8px}
.card p{margin:0 0 12px;color:var(--muted)}
.card .meta{font-size:12px;color:var(--muted)}
@media (max-width:980px){.card{grid-column:span 6}}
@media (max-width:620px){.card{grid-column:span 12}.hero h1{font-size:30px}}
.section{margin:26px 0 10px}
.section h2{margin:0 0 10px}
.muted{color:var(--muted)}
hr{border:none;border-top:1px solid var(--line);margin:18px 0}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:10px 0 6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-weight:750}
.btn:hover{background:rgba(255,255,255,.05)}
.btn-primary{border-color:rgba(255,107,53,.55);box-shadow:0 0 0 4px rgba(255,107,53,.10) inset}
.btn-amazon{border-color:rgba(88,215,255,.40);box-shadow:0 0 0 4px rgba(88,215,255,.08) inset}
.kit{background:rgba(255,209,102,.07);border:1px dashed rgba(255,209,102,.35);border-radius:18px;padding:14px}
.list{margin:10px 0 0;padding-left:18px;color:var(--muted)}
.footer{margin-top:34px;border-top:1px solid var(--line);background:rgba(255,255,255,.01);padding:22px 0 16px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:16px}
.footer-title{font-weight:900;margin-bottom:8px}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-bottom{margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
.disclaimer{font-size:12px;color:var(--muted);margin:10px 0 0}
.article h1{margin:0 0 8px;font-size:30px}
.article p{color:var(--muted);line-height:1.65}
.toc{background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:16px;padding:12px;margin:14px 0}
.toc a{display:block;color:var(--muted);padding:6px 2px}
.toc a:hover{color:var(--text)}
.table{width:100%;border-collapse:collapse;margin:10px 0}
.table th,.table td{border:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}
.table th{background:rgba(255,255,255,.03)}
.small{font-size:12px;color:var(--muted)}