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/* Notebook details: a quiet molecular study above the reading surface. */
:root{--dna-one:#6750b7;--dna-two:#16796f;--button-ink:#fff}
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.primary{color:var(--button-ink)}
.molecular-header{position:absolute;left:0;right:0;top:164px;z-index:1;display:grid;grid-template-columns:245px minmax(0,1fr);align-items:center;gap:45px}
.notebook-label{font-size:11px;letter-spacing:.16em;color:var(--muted);font-weight:600}
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.notebook-intro>p>span{color:var(--dna-two)}
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.notebook-link:hover{color:var(--ink);text-decoration-color:var(--dna-two)}
.helix-figure{margin:0;min-width:0;align-self:center}
#hero-dna{width:100%;height:auto;overflow:visible}
.helix-guides{fill:none;stroke:var(--ink);stroke-opacity:.12;stroke-width:1;stroke-dasharray:2 5}
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.backbone{stroke-width:2;stroke-linecap:round;opacity:.8}
.strand-one{stroke:var(--dna-one)}
.strand-two{stroke:var(--dna-two)}
.pair-half{stroke-width:1.4;stroke-opacity:.5}
.nucleotide{stroke-width:1;stroke:var(--sky)}
.nucleotide.strand-one{fill:var(--dna-one)}
.nucleotide.strand-two{fill:var(--dna-two)}
.helix-figure figcaption{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px 0;color:var(--muted);font:11px ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.02em}
.helix-figure figcaption>span{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
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#helix-toggle svg{width:12px;height:12px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
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.feed article{padding-bottom:29px;margin-bottom:31px;border-bottom:1px solid var(--line);position:relative}
.feed h2{letter-spacing:-.6px;line-height:1.35}
.feed .excerpt{line-height:1.64;color:var(--ink)}
.feed h2 a{background-image:linear-gradient(var(--accent),var(--accent));background-size:0 1px;background-repeat:no-repeat;background-position:0 100%;transition:color .2s,background-size .25s}
.feed h2 a:hover{background-size:100% 1px}
.read-more{font-size:14px;font-weight:650}
.read-more:hover{color:var(--accent)}
.sidebar .eyebrow{font-size:13px;letter-spacing:.15em}
.category-options button{border:1px solid transparent;border-radius:5px;transition:border-color .2s,color .2s,background .2s,transform .2s}
.category-options button:hover{color:var(--button-ink);transform:translateY(-2px)}
.hello{border:1px solid var(--line);border-top:2px solid var(--dna-two);border-radius:3px;box-shadow:none}
.mini-mark{border-radius:3px;background:transparent;font-family:Georgia,serif;font-size:34px;font-style:italic;letter-spacing:-2px;color:var(--dna-two)}
.contact-band{border-block:1px solid var(--line)}
.footer{border-top:0}
html[data-theme=dark] .primary:hover{box-shadow:0 4px 0 #0b101b}
@media(min-width:761px){.feed article:before{content:'';position:absolute;left:-19px;top:29px;width:2px;height:31px;border-radius:2px;background:var(--dna-two);opacity:0;transform:scaleY(.3);transition:opacity .25s,transform .25s}.feed article:hover:before{opacity:1;transform:scaleY(1)}}
@media(max-width:1150px){.molecular-header{top:152px;grid-template-columns:210px minmax(0,1fr);gap:25px}.notebook-intro>p{font-size:29px}.diagram-note{display:none}}
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/* Keep figure annotations readable on narrow displays. */
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