:root{--cyan:#25d7ff;--mint:#39f2c5;--orange:#ff7a3d;--red:#ff5d6c;--amber:#ffc24b;--ink:#eafbff;--muted:rgba(226,247,255,.8);--soft:rgba(226,247,255,.62);--line:rgba(125,235,255,.24);--panel:linear-gradient(145deg,rgba(10,57,86,.9),rgba(4,23,38,.92))}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;background:#071c2f;color:var(--ink);line-height:1.72}a{color:#7debff;text-decoration:none}a:hover{text-decoration:underline}
.nb{height:64px;position:sticky;top:0;z-index:30;background:rgba(4,24,38,.95);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px}.nav{display:flex;gap:8px;align-items:center}.nav a{color:rgba(234,251,255,.82);font-weight:700;padding:8px 13px;border-radius:999px}.nav a:hover,.nav .act{background:rgba(125,235,255,.15);color:#fff;text-decoration:none}.cta{background:linear-gradient(135deg,var(--cyan),#7c3aed)!important;color:#fff!important}
.cf-hero{position:relative;min-height:440px;display:flex;align-items:flex-end;overflow:hidden;background:#08263c}.cf-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 40%}.cf-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,17,28,.95),rgba(6,43,66,.72),rgba(255,122,61,.12)),linear-gradient(0deg,rgba(3,17,28,.9),transparent 60%)}.hero-inner{position:relative;z-index:1;max-width:1180px;width:100%;margin:auto;padding:40px 24px 44px;color:#fff}
.crumbs{font-size:.84rem;color:var(--soft);margin-bottom:14px}.crumbs a{color:rgba(234,251,255,.85)}.crumbs span{margin:0 7px;opacity:.5}
.tag{display:inline-flex;border:1px solid rgba(255,255,255,.25);background:rgba(255,122,61,.18);border-radius:999px;padding:7px 13px;font-size:.76rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
h1{max-width:880px;font-size:clamp(2.1rem,5vw,3.6rem);line-height:1.07;margin:14px 0 12px}.cf-hero p{max-width:760px;color:rgba(234,251,255,.86);font-size:1.08rem;margin:0}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.hero-stats div{background:rgba(4,24,38,.62);border:1px solid var(--line);border-radius:14px;padding:9px 14px;font-size:.84rem;color:var(--soft)}.hero-stats b{display:block;color:#fff;font-size:1.05rem}
.page{max-width:1180px;margin:auto;padding:28px 24px 72px;display:grid;grid-template-columns:250px minmax(0,1fr);gap:24px;align-items:start}
.toc{position:sticky;top:86px;max-height:calc(100vh - 108px);overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:0 24px 80px rgba(0,10,22,.35)}.toc strong{display:block;color:#fff;margin-bottom:9px}.toc a{display:block;padding:6px 8px;border-left:2px solid rgba(125,235,255,.2);color:rgba(234,251,255,.78);font-size:.86rem}.toc a:hover{background:rgba(125,235,255,.12);border-color:var(--orange);color:#fff;text-decoration:none}
.toc .toc-cta{margin-top:16px;border:1px solid rgba(255,122,61,.4);background:rgba(255,122,61,.1);border-radius:14px;padding:12px;font-size:.82rem;color:var(--muted)}.toc .toc-cta a{border:0;padding:0;display:inline;color:#ffb48f;font-weight:800}
.article{min-width:0}.card{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:clamp(20px,4vw,36px);box-shadow:0 24px 80px rgba(0,10,22,.35);margin-bottom:20px}
.article h2{font-size:clamp(1.45rem,3vw,1.9rem);line-height:1.25;color:#fff;margin:4px 0 12px}.article h3{color:#fff;margin:22px 0 8px;font-size:1.12rem}.article p,.article li{color:var(--muted)}.article strong{color:#fff}.lead{font-size:1.08rem}
.eyebrow{font-size:.74rem;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:var(--mint)}
.answer{border-left:5px solid var(--orange);background:rgba(255,122,61,.1);border-radius:16px;padding:18px 20px;margin:18px 0}.answer p{margin:0}
/* triage */
.triage{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px}.tri{border-radius:16px;padding:16px;border:1px solid;background:rgba(4,28,46,.6)}.tri h3{margin:0 0 4px;font-size:1rem;display:flex;align-items:center;gap:8px}.tri .when{font-size:.78rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.tri ul{margin:10px 0 0;padding-left:18px;font-size:.9rem}.tri li{margin:3px 0}
.tri.r{border-color:rgba(255,93,108,.55);background:linear-gradient(160deg,rgba(255,93,108,.16),rgba(4,28,46,.6))}.tri.r .when{color:var(--red)}
.tri.a{border-color:rgba(255,194,75,.5);background:linear-gradient(160deg,rgba(255,194,75,.12),rgba(4,28,46,.6))}.tri.a .when{color:var(--amber)}
.tri.g{border-color:rgba(57,242,197,.45);background:linear-gradient(160deg,rgba(57,242,197,.1),rgba(4,28,46,.6))}.tri.g .when{color:var(--mint)}
.dot{width:10px;height:10px;border-radius:50%;flex:0 0 10px}.r .dot{background:var(--red);box-shadow:0 0 0 4px rgba(255,93,108,.2)}.a .dot{background:var(--amber);box-shadow:0 0 0 4px rgba(255,194,75,.2)}.g .dot{background:var(--mint);box-shadow:0 0 0 4px rgba(57,242,197,.2)}
/* symptom finder */
.sym-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}.sym{border:1px solid var(--line);background:rgba(5,35,55,.7);border-radius:16px;padding:15px 16px}.sym-head{display:flex;justify-content:space-between;gap:10px;align-items:baseline}.sym h3{margin:0;font-size:1rem}.lvl{font-size:.7rem;font-weight:900;letter-spacing:.06em;text-transform:uppercase;border-radius:999px;padding:3px 9px;white-space:nowrap}.lvl.r{background:rgba(255,93,108,.18);color:#ff8f9a}.lvl.a{background:rgba(255,194,75,.16);color:#ffd27a}.lvl.g{background:rgba(57,242,197,.14);color:#7af5d6}
.sym p{margin:6px 0 10px;font-size:.88rem}.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{font-size:.78rem;font-weight:700;border:1px solid rgba(125,235,255,.3);border-radius:999px;padding:4px 10px;background:rgba(37,215,255,.08)}.chip:hover{background:rgba(37,215,255,.2);text-decoration:none}
/* disease table */
.table-wrap{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:16px;margin:18px 0}.facts{width:100%;min-width:720px;border-collapse:collapse;background:rgba(4,28,46,.7);font-size:.92rem}.facts th,.facts td{padding:12px 14px;border-bottom:1px solid rgba(125,235,255,.14);text-align:left;vertical-align:top}.facts th{background:rgba(37,215,255,.12);color:#fff;font-size:.84rem}.facts td{color:var(--muted)}.facts td:first-child{color:#fff;font-weight:800}.facts td:first-child small{display:block;font-weight:500;font-style:italic;color:var(--soft)}.facts tr:last-child td{border-bottom:0}
.speed{display:inline-block;font-size:.74rem;font-weight:900;border-radius:999px;padding:2px 9px}.speed.r{background:rgba(255,93,108,.18);color:#ff8f9a}.speed.a{background:rgba(255,194,75,.16);color:#ffd27a}
.diagram{margin:20px 0 4px;border:1px solid var(--line);border-radius:18px;background:rgba(4,28,46,.6);padding:14px}.diagram{overflow-x:auto}.diagram svg{display:block;width:100%;min-width:620px;height:auto}.cap{font-size:.8rem;color:var(--soft);margin:8px 2px 0}
/* species */
.sp-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:16px}.sp{border:1px solid var(--line);background:rgba(5,35,55,.7);border-radius:18px;overflow:hidden;display:flex;flex-direction:column}.sp img,.sp .ph{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}.sp .ph{display:grid;place-items:center;background:radial-gradient(circle at 30% 30%,rgba(255,122,61,.35),rgba(4,28,46,.9));font-size:3rem}.sp-body{padding:14px 15px 16px;flex:1}.sp h3{margin:0 0 2px}.sp .latin{font-size:.8rem;font-style:italic;color:var(--soft)}.sp p{font-size:.88rem;margin:8px 0 10px}.sp .watch{font-size:.8rem;color:#ffb48f;font-weight:800;margin-bottom:8px}
/* steps */
.steps{counter-reset:s;list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px}.steps li{counter-increment:s;position:relative;padding:13px 14px 13px 58px;border:1px solid var(--line);border-radius:14px;background:rgba(5,35,55,.6)}.steps li:before{content:counter(s);position:absolute;left:14px;top:12px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--orange),#f5a623);color:#fff;font-weight:900;font-size:.9rem}
.params{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:16px 0}.param{border:1px solid var(--line);border-radius:14px;padding:12px;text-align:center;background:rgba(37,215,255,.06)}.param b{display:block;color:#fff;font-size:1.05rem}.param span{font-size:.75rem;color:var(--soft);text-transform:uppercase;letter-spacing:.06em}
.warn{border-left:5px solid var(--red);background:rgba(255,93,108,.1);border-radius:14px;padding:14px 16px;margin:16px 0;font-size:.93rem}.warn p{margin:0}
/* faq */
details{border:1px solid var(--line);border-radius:14px;background:rgba(5,35,55,.6);margin:10px 0;padding:0 16px}summary{cursor:pointer;padding:14px 0;font-weight:800;color:#fff;list-style:none;display:flex;justify-content:space-between;gap:12px}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--orange);font-size:1.3rem;line-height:1}details[open] summary:after{content:"–"}details p{margin:0 0 14px;font-size:.94rem}
.photo-credit{font-size:.72rem;color:var(--soft);padding:0 15px 10px}
.byline{display:flex;gap:14px;align-items:center;border:1px solid var(--line);background:rgba(5,35,55,.7);border-radius:16px;padding:15px 17px;margin-top:18px}.byline-mark{width:46px;height:46px;flex:0 0 46px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--orange),#f5a623);color:#fff;font-weight:900}.byline p{margin:0;font-size:.9rem}.refs li{margin-bottom:8px;font-size:.92rem}
.link-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}.guide-link{display:block;border:1px solid var(--line);background:rgba(5,35,55,.7);border-radius:14px;padding:14px 15px;font-weight:800}.guide-link span{display:block;color:var(--soft);font-weight:500;font-size:.86rem}
footer{background:#03121e;color:rgba(234,251,255,.68);text-align:center;padding:28px;font-size:.85rem}.legal-links{margin-top:9px}.legal-links a{color:#fff;margin:0 8px}
@media(max-width:1000px){.params{grid-template-columns:repeat(3,minmax(0,1fr))}.link-grid{grid-template-columns:1fr 1fr}}
@media(max-width:900px){.page{grid-template-columns:1fr}.toc{position:relative;top:auto;max-height:none}.toc-list{columns:2}.triage,.sp-grid{grid-template-columns:1fr}}
@media(max-width:600px){.nb{padding:0 16px}.cf-hero{min-height:380px}.hero-inner{padding:30px 16px}.page{padding:18px 14px 54px}.card{padding:20px 16px}.toc-list{columns:1}.sym-grid,.link-grid{grid-template-columns:1fr}.params{grid-template-columns:1fr 1fr}.hero-stats div{flex:1 1 40%}
/* compact mobile */
.cf-hero{min-height:0}.hero-inner{padding:22px 16px 24px}.crumbs{margin-bottom:10px;font-size:.78rem}h1{font-size:1.85rem;margin:10px 0 8px}.cf-hero p{font-size:.95rem;line-height:1.55}
.hero-stats{gap:6px;margin-top:14px}.hero-stats div{flex:1 1 45%;padding:6px 10px;font-size:.74rem;line-height:1.3}.hero-stats b{display:inline;font-size:.9rem;margin-right:4px}
.page{padding:0 12px 40px;gap:14px}
.toc{position:sticky;top:64px;z-index:20;margin:0 -12px;border-radius:0;border-width:0 0 1px;padding:8px 12px;background:rgba(4,24,38,.96);backdrop-filter:blur(12px);box-shadow:none}
.toc>strong,.toc .toc-cta{display:none}.toc-list{columns:auto;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}.toc-list::-webkit-scrollbar{display:none}
.toc a{flex:0 0 auto;border:1px solid var(--line);border-radius:999px;padding:5px 11px;font-size:.78rem;white-space:nowrap}
html{scroll-padding-top:120px}
.card{padding:18px 15px;margin-bottom:14px;border-radius:18px}.article h2{font-size:1.32rem;margin-bottom:8px}.lead{font-size:1rem}.article p,.article li{line-height:1.6}.answer{padding:13px 14px;margin:12px 0}
.triage{gap:8px;margin-top:10px}.tri{padding:12px 13px}.tri ul{margin-top:6px;font-size:.85rem}.tri li{margin:1px 0}
.sym-grid{gap:8px;margin-top:10px}.sym{padding:11px 12px}.sym h3{font-size:.95rem}.sym p{font-size:.82rem;margin:3px 0 7px;line-height:1.5}.lvl{font-size:.62rem;padding:2px 7px}.chip{font-size:.74rem;padding:3px 9px}
.diagram{margin:12px 0 4px;padding:8px}.table-wrap{margin:12px 0}
.sp-grid{gap:10px;margin-top:10px}.sp{flex-direction:row;align-items:stretch}.sp img{width:108px;flex:0 0 108px;aspect-ratio:auto;height:auto;min-height:100%}.sp-body{padding:10px 12px 12px}.sp h3{font-size:1rem}.sp .latin{font-size:.72rem}.sp p{font-size:.8rem;margin:5px 0 6px;line-height:1.5}.sp .watch{font-size:.74rem;margin-bottom:6px}
.steps{gap:7px;margin-top:10px}.steps li{padding:10px 12px 10px 48px;font-size:.88rem}.steps li:before{left:11px;top:10px;width:26px;height:26px;font-size:.8rem}.warn{padding:11px 13px;font-size:.86rem}
.params{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin:10px 0}.param{padding:8px 4px}.param b{font-size:.88rem}.param span{font-size:.62rem}
.link-grid{gap:8px}.guide-link{padding:10px 12px}
summary{padding:11px 0;font-size:.92rem}details{margin:7px 0}.refs li{font-size:.85rem}}
/* species pages */
.profile{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:20px;align-items:start}.profile figure{margin:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:rgba(4,28,46,.78)}.profile img{display:block;width:100%;height:auto}.profile figcaption{padding:9px 12px;font-size:.74rem;color:var(--soft);line-height:1.45}
.sgroup{border:1px solid var(--line);background:rgba(5,35,55,.6);border-radius:16px;padding:16px 18px;margin:12px 0}.sgroup h3{margin:0 0 4px!important;display:flex;justify-content:space-between;gap:10px;align-items:baseline}.sgroup p{margin:6px 0}.sgroup .terms{font-size:.8rem;color:var(--soft)}.sgroup .note{border-left:3px solid var(--orange);padding-left:10px;margin-top:8px}
.sib{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}
cite{font-style:normal}.refs a{word-break:break-word}
@media(max-width:900px){.profile{grid-template-columns:1fr}.sib{grid-template-columns:1fr}}
@media(max-width:600px){.sgroup{padding:12px 13px;margin:8px 0}.sgroup p{font-size:.88rem}}
.sp-grid.sp4{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:900px){.sp-grid.sp4{grid-template-columns:1fr}}
@media(max-width:600px){.profile figure{display:none}.refs li{font-size:.76rem;line-height:1.45;margin-bottom:6px}.sgroup .terms{font-size:.72rem;margin:2px 0 4px}.sgroup .note{font-size:.84rem}}