:root{--ink:#1a2332;--ink-soft:#4a5568;--paper:#ffffff;--bg:#f6f7f9;--line:#e2e6ec;--accent:#0e7490;--accent-dark:#155e75;--danger:#b91c1c;--warn-bg:#fef3c7;--warn-line:#f59e0b;--safe-bg:#ecfdf5;--safe-line:#10b981;--part-bg:#f0f9ff;--part-line:#7dd3fc;--radius:10px;--maxw:44rem;}*{box-sizing:border-box;}body{margin:0;font:16px/1.65 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);}.site-header{background:var(--paper);border-bottom:1px solid var(--line);}.site-header .inner{max-width:var(--maxw);margin:0 auto;padding:0.9rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;}.logo{font-weight:700;font-size:1.05rem;color:var(--accent-dark);text-decoration:none;letter-spacing:-0.02em;}.logo span{color:var(--accent);}.nav-links{display:flex;gap:1.1rem;}.nav-links a{color:var(--ink-soft);text-decoration:none;font-size:0.9rem;}.nav-links a:hover{color:var(--accent);}.wrap{max-width:var(--maxw);margin:0 auto;padding:1.5rem 1.25rem 4rem;}.breadcrumb{font-size:0.82rem;color:var(--ink-soft);margin-bottom:1.2rem;}.breadcrumb a{color:var(--accent);text-decoration:none;}.breadcrumb a:hover{text-decoration:underline;}.breadcrumb span{color:var(--ink);font-weight:600;}main h1{font-size:clamp(1.55rem,4vw,2.1rem);line-height:1.25;letter-spacing:-0.02em;margin:0 0 0.4rem;}main h2{font-size:1.25rem;margin:2.2rem 0 0.8rem;letter-spacing:-0.01em;}main h3{font-size:1.02rem;margin:1.4rem 0 0.4rem;}p{margin:0.6rem 0;}a{color:var(--accent);}.meta{color:var(--ink-soft);font-size:0.85rem;border-bottom:1px solid var(--line);padding-bottom:1rem;margin-bottom:1.4rem;}.quick-answer{background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:var(--radius);padding:1.1rem 1.25rem;margin:1.4rem 0;}.quick-answer h2{margin:0 0 0.4rem;font-size:0.8rem;text-transform:uppercase;letter-spacing:0.08em;color:var(--ink-soft);}.severity{font-size:0.9rem;color:var(--ink-soft);background:var(--bg);border-radius:6px;padding:0.55rem 0.75rem;margin-top:0.9rem;}.safety{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:var(--radius);padding:1rem 1.25rem;margin:1.4rem 0;}.safety h2{margin:0 0 0.4rem;font-size:1rem;color:#92400e;}.safety p{margin:0;font-size:0.95rem;color:#78350f;}.causes{list-style:none;margin:1rem 0 0;padding:0;}.causes>li{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:1rem 1.25rem;margin-bottom:0.9rem;}.causes h3{display:flex;flex-wrap:wrap;align-items:baseline;gap:0.5rem;margin:0 0 0.5rem;}.tag{font-size:0.72rem;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;border-radius:999px;padding:0.15rem 0.6rem;white-space:nowrap;}.tag.common{background:#fee2e2;color:#991b1b;}.tag.occasional{background:#fef3c7;color:#92400e;}.tag.rare{background:#e5e7eb;color:#374151;}.tag.diy-ok{background:var(--safe-bg);color:#065f46;border:1px solid var(--safe-line);}.tag.pro-only{background:#ede9fe;color:#5b21b6;border:1px solid #c4b5fd;}.part-box{background:var(--part-bg);border:1px solid var(--part-line);border-radius:8px;padding:0.8rem 1rem;margin:0.8rem 0 0.2rem;font-size:0.92rem;}.part-box p{margin:0.2rem 0;}.part-box a{font-weight:600;}.pro-cta{background:linear-gradient(135deg,#0e7490,#155e75);color:#f0fdfa;border-radius:var(--radius);padding:1.3rem 1.4rem;margin:2rem 0;}.pro-cta h2{color:#fff;margin-top:0;}.pro-cta a{display:inline-block;background:#fff;color:var(--accent-dark);font-weight:700;text-decoration:none;padding:0.6rem 1.2rem;border-radius:8px;margin-top:0.5rem;}.pro-cta a:hover{background:#ecfeff;}.variants{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:0.4rem 1.25rem 1rem;margin-top:0.8rem;}.variants h3{margin-top:0.9rem;}.sources{font-size:0.85rem;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:1rem;margin-top:2.5rem;}.sources ul{padding-left:1.1rem;margin:0.4rem 0 0;}.site-footer{border-top:1px solid var(--line);background:var(--paper);padding:1.5rem 1.25rem;font-size:0.85rem;color:var(--ink-soft);}.site-footer .inner{max-width:var(--maxw);margin:0 auto;display:flex;flex-wrap:wrap;gap:1rem 2rem;justify-content:space-between;}@media (max-width:480px){.nav-links{display:none;}.wrap{padding:1rem 1rem 3rem;}.causes>li{padding:0.9rem 1rem;}}@media print{.site-header,.site-footer,.pro-cta,.part-box{display:none;}body{background:#fff;}}.pill{display:inline-block;padding:0.1rem 0.55rem;border-radius:999px;font-size:0.75rem;font-weight:600;vertical-align:middle;}.pill-verified{background:#fef3c7;color:#92400e;}.pill-draft{background:#e5e7eb;color:#374151;}