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/* Science hub */
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/* Engineering landing and topic pages */
.engineering-hero{min-height:calc(82vh - 78px);padding:68px 7.2% 27px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr auto;position:relative;overflow:hidden;background:radial-gradient(ellipse at 75% 45%,#dfe9e1 0,transparent 40%)}.engineering-hero .hub-copy{padding-bottom:35px}.engineering-hero .hub-copy h1 em{color:#55796d}.eng-feature-art{position:relative;align-self:center;justify-self:center;width:min(43vw,510px);height:min(38vw,420px);min-height:340px;background:#e9eee8;border:1px solid #d7dfd6;overflow:hidden}.eng-feature-grid{position:absolute;inset:0;background-image:linear-gradient(#69857813 1px,transparent 1px),linear-gradient(90deg,#69857813 1px,transparent 1px);background-size:28px 28px}.beam{position:absolute;background:#c1d4c5;border:2px solid #456b61;box-shadow:4px 5px 0 #47695d20}.beam-a{height:19px;width:67%;left:17%;top:45%;transform:rotate(-8deg)}.beam-b{height:138px;width:18px;left:18%;top:47%;transform:skew(-8deg);background:#d5e0d6}.beam-c{height:138px;width:18px;right:17%;top:33%;transform:skew(-8deg);background:#d5e0d6}.beam-d{height:15px;width:75%;left:12%;top:80%;background:#a9beac}.beam-node{position:absolute;width:12px;height:12px;background:#78947c;border:2px solid #f0f2eb;border-radius:50%;z-index:1}.node-a{left:18%;top:77%}.node-b{left:18%;top:47%}.node-c{right:16%;top:35%}.node-d{right:16%;top:77%}.force-arrow{position:absolute;top:16%;font:30px "DM Mono",monospace;color:#648b58}.force-left{left:43%}.force-right{left:59%}.structure-label{position:absolute;bottom:13px;left:14px;font:8px "DM Mono",monospace;letter-spacing:.1em;color:#657c71}.engineering-hero .hub-bottom{grid-column:1/-1}.engineering-topics{padding:82px 7.2% 70px;background:#e9ebe3}.topic-link{display:flex;align-items:center;gap:25px;padding:24px 24px;background:#f5f4ef;text-decoration:none;color:var(--ink);border:1px solid #e0e4db;transition:transform .2s,border-color .2s}.topic-link:hover{transform:translateY(-3px);border-color:#aebfaa}.topic-number{align-self:flex-start;font:10px "DM Mono",monospace;color:#7b887e}.topic-symbol{display:grid;place-items:center;width:52px;height:52px;flex:none;border-radius:50%;background:#dbe6d8;color:#54776a;font-size:26px}.topic-copy{display:grid;gap:6px;flex:1}.topic-copy small{font:8px "DM Mono",monospace;letter-spacing:.1em;color:#738176}.topic-copy strong{font:600 22px Manrope;letter-spacing:-.03em}.topic-copy>span{font-size:12px;color:#69746d;line-height:1.6}.topic-arrow{font-size:20px;color:#4e703d}.topic-coming{display:flex;justify-content:space-between;padding:18px 2px 0;color:#8a958b;font:8px "DM Mono",monospace;letter-spacing:.1em}.topic-hero .hub-copy h1{font-size:clamp(58px,6vw,86px)}.topic-back{display:block;margin-top:18px;color:#64756a;font:10px "DM Mono",monospace;text-decoration:none}.concept-section{background:#e9ebe3}.concept-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #cbd0c6;border-bottom:1px solid #cbd0c6}.concept-grid article{padding:25px 27px 31px 0}.concept-grid article+article{border-left:1px solid #cbd0c6;padding-left:27px}.concept-grid article>span{font:9px "DM Mono",monospace;letter-spacing:.09em;color:#758374}.concept-grid h3{font:600 21px Manrope;margin:26px 0 9px}.concept-grid p{font-size:12px;line-height:1.7;color:#68746d;margin:0}.concept-section .note{margin-top:23px}@media(max-width:850px){.engineering-hero{padding:55px 5% 25px}.eng-feature-art{min-height:300px}.engineering-topics{padding:70px 5% 60px}}@media(max-width:620px){.engineering-hero{min-height:auto;grid-template-columns:1fr;padding:52px 7% 24px}.engineering-hero .hub-copy{padding-bottom:0}.eng-feature-art{grid-row:2;width:100%;height:300px;min-height:300px;margin:30px 0 20px}.engineering-hero .hub-bottom{grid-row:3;font-size:7px}.engineering-topics{padding:65px 7% 52px}.topic-link{gap:12px;padding:17px 13px}.topic-symbol{width:40px;height:40px}.topic-copy strong{font-size:18px}.topic-copy>span{font-size:11px}.topic-coming{font-size:7px;gap:12px}.concept-grid{grid-template-columns:1fr}.concept-grid article{padding:20px 0 23px}.concept-grid article+article{border-left:0;border-top:1px solid #cbd0c6;padding-left:0}.concept-grid h3{margin:15px 0 8px}}
/* Computer science and AI pages */
.cs-hero{min-height:calc(82vh - 78px);padding:68px 7.2% 27px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr auto;position:relative;overflow:hidden;background:radial-gradient(ellipse at 75% 45%,#e4e9d9 0,transparent 41%)}.cs-hero .hub-copy{padding-bottom:35px}.cs-hero .hub-copy h1 em{color:#6c8555}.cs-feature-art{align-self:center;justify-self:center;width:min(43vw,500px);height:min(38vw,420px);min-height:340px;position:relative;display:grid;place-items:center;background:radial-gradient(ellipse,#edf1e8 0,#e7ebe1 60%,transparent 75%)}.cs-art-orbit{position:absolute;border:1px solid #90a18355;border-radius:50%}.orbit-a{width:76%;height:76%}.orbit-b{width:100%;height:52%;transform:rotate(-28deg);border-style:dashed}.cs-brain{width:145px;height:145px;display:grid;place-items:center;border-radius:43% 57% 56% 44%/49% 43% 57% 51%;background:#d2e2c2;border:1px solid #78945f;box-shadow:inset -13px -10px 0 #bdcfaa,0 15px 40px #3d54351a;color:#4c6d38;font:500 31px "DM Mono",monospace;z-index:1}.cs-brain:before,.cs-brain:after{content:"";position:absolute;width:112px;height:2px;background:#8ca77a55;transform:rotate(55deg)}.cs-brain:after{transform:rotate(-53deg)}.cs-node{position:absolute;width:12px;height:12px;border-radius:50%;background:#76934f;box-shadow:0 0 0 5px #dce8d1}.node-1{top:20%;left:27%}.node-2{top:27%;right:21%;background:#84a6aa;box-shadow:0 0 0 5px #dbe8e4}.node-3{top:49%;left:13%}.node-4{top:60%;right:13%;background:#b89d58;box-shadow:0 0 0 5px #efe8d2}.node-5{bottom:17%;left:31%;background:#84a6aa;box-shadow:0 0 0 5px #dbe8e4}.node-6{bottom:21%;right:29%}.cs-art-label{position:absolute;bottom:13px;left:14px;font:8px "DM Mono",monospace;letter-spacing:.1em;color:#75816e}.ai-symbol{font-family:Georgia,serif}.ai-hero .hub-copy h1{font-size:clamp(57px,6vw,84px)}.ai-basics{background:#e9ebe3}@media(max-width:850px){.cs-hero{padding:55px 5% 25px}.cs-feature-art{min-height:300px}.ai-basics{padding:70px 5% 60px}}@media(max-width:620px){.cs-hero{min-height:auto;grid-template-columns:1fr;padding:52px 7% 24px}.cs-hero .hub-copy{padding-bottom:0}.cs-feature-art{grid-row:2;width:100%;height:300px;min-height:300px;margin:24px 0 20px}.cs-hero .hub-bottom{grid-row:3;font-size:7px}.ai-basics{padding:65px 7% 52px}}
/* Biology guide adapted from the provided general biology manuscript */
.biology-reading{padding:100px 7.2% 86px;background:#f5f4ef}.biology-reading-head{display:flex;justify-content:space-between;align-items:end;gap:45px;margin-bottom:46px}.biology-reading-head h2{font-size:clamp(47px,5vw,68px)}.biology-reading-head h2 em{color:#6c8b50}.biology-reading-head>p{max-width:405px;color:#68746d;font-size:13px;line-height:1.75;margin:0 0 6px}.bio-topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.bio-topic{min-height:260px;background:#eeefe9;border:1px solid #e2e5dc;padding:23px 25px 21px;display:flex;flex-direction:column}.bio-topic-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;font:8px "DM Mono",monospace;letter-spacing:.08em;color:#768176}.evidence-tag{padding:6px 8px;border-radius:2px;white-space:nowrap;font:7px "DM Mono",monospace;letter-spacing:.08em}.evidence-tag.established{background:#dbe8d1;color:#53733e}.evidence-tag.hypothesis{background:#e5e2c7;color:#786c36}.evidence-tag.context{background:#dce7e5;color:#52736f}.evidence-tag.proposal{background:#e9ddd2;color:#8b6143}.bio-topic h3{font:600 20px Manrope;letter-spacing:-.035em;margin:26px 0 10px}.bio-topic p{font-size:12px;line-height:1.75;color:#68746d;margin:0}.bio-topic>a{margin-top:auto;padding-top:18px;color:#55753c;font:9px "DM Mono",monospace;letter-spacing:.04em;text-decoration:none}.bio-topic-foot{margin-top:auto;padding-top:18px;color:#8d7966;font:8px "DM Mono",monospace;letter-spacing:.06em}.bio-editorial{display:flex;gap:13px;align-items:flex-start;background:#e8eee2;margin-top:18px;padding:17px 20px;color:#667269}.editorial-mark{display:grid;place-items:center;flex:none;width:21px;height:21px;border-radius:50%;background:#d0dfc4;color:#52713e;font:600 12px Georgia}.bio-editorial p{font-size:11px;line-height:1.7;margin:0}.bio-editorial b{color:#25352b}.bio-sources{display:grid;grid-template-columns:1fr 1.5fr;gap:35px;align-items:start;margin-top:51px;padding-top:26px;border-top:1px solid var(--line)}.bio-sources h3{font:600 20px Manrope;margin:13px 0}.bio-sources ul{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}.bio-sources a{font-size:11px;color:#54733c;text-decoration:none;line-height:1.6}.bio-sources a:hover{text-decoration:underline}@media(max-width:850px){.biology-reading{padding:80px 5% 70px}.biology-reading-head{gap:25px}.bio-topic{padding:20px;min-height:280px}}@media(max-width:620px){.biology-reading{padding:68px 7% 54px}.biology-reading-head{display:block;margin-bottom:30px}.biology-reading-head>p{margin-top:19px}.bio-topic-grid{grid-template-columns:1fr;gap:10px}.bio-topic{min-height:0;padding:19px}.bio-topic h3{margin:21px 0 9px}.bio-topic>a,.bio-topic-foot{margin-top:18px}.bio-sources{grid-template-columns:1fr;gap:17px;margin-top:39px}.bio-sources ul{grid-template-columns:1fr;gap:10px}.bio-topic-meta{align-items:flex-start}.evidence-tag{font-size:6px}}


/* Individual biology chapter summary pages */
.bio-detail-hero{min-height:calc(72vh - 78px);padding:68px 7.2% 27px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr auto;position:relative;overflow:hidden;background:radial-gradient(ellipse at 75% 45%,#e4eadb 0,transparent 42%)}.bio-detail-copy{align-self:center;z-index:1;padding:0 0 34px}.book-source-chip{display:inline-block;margin-top:19px;padding:7px 9px;border:1px solid #d4dbcd;border-radius:2px;color:#728071;font:8px "DM Mono",monospace;letter-spacing:.08em}.bio-detail-copy h1{font-size:clamp(54px,6vw,83px);margin:21px 0}.bio-detail-copy h1 em{color:#668750}.bio-detail-copy .intro{max-width:430px}.bio-detail-copy .primary{display:inline-block;margin-top:17px}.topic-back{display:block;margin-top:18px;color:#64756a;font:10px "DM Mono",monospace;text-decoration:none}.bio-detail-art{align-self:center;justify-self:center;width:min(40vw,450px);height:min(40vw,450px);min-height:330px;position:relative;display:grid;place-items:center}.detail-art-ring{position:absolute;border:1px solid #84977d38;border-radius:50%}.detail-art-ring.ring-a{width:88%;height:88%}.detail-art-ring.ring-b{width:65%;height:65%;border-style:dashed;transform:rotate(-24deg)}.detail-art-core{width:132px;height:132px;border-radius:50%;display:grid;align-content:center;justify-content:center;text-align:center;background:#182a22;color:#f3f5ec;font:500 19px "DM Mono",monospace;box-shadow:0 14px 45px #17251d20;z-index:1}.detail-art-core span{font-size:7px;letter-spacing:.13em;color:#b9e981;margin-top:6px}.detail-art-tag{position:absolute;bottom:13px;left:10px;color:#7f8b7e;font:8px "DM Mono",monospace;letter-spacing:.1em}.bio-detail-hero .hub-bottom{grid-column:1/-1}.book-notes{padding:79px 7.2% 72px;background:#e9ebe3}.book-notes-heading{display:grid;grid-template-columns:1fr 1fr;column-gap:40px;align-items:end;margin-bottom:36px}.book-notes-heading .eyebrow{grid-column:1/-1;margin-bottom:4px}.book-notes-heading h2{font-size:clamp(42px,4.6vw,60px);margin-top:15px}.book-notes-heading h2 em{color:#698b50}.book-notes-heading>p{font-size:13px;line-height:1.7;color:#68746d;margin:0 0 5px;max-width:440px}.book-note-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #cbd0c6;border-bottom:1px solid #cbd0c6}.book-note-grid article{padding:24px 26px 27px 0}.book-note-grid article+article{border-left:1px solid #cbd0c6;padding-left:26px}.book-note-grid article>span{font:8px "DM Mono",monospace;letter-spacing:.09em;color:#758374}.book-note-grid h3{font:600 20px Manrope;margin:23px 0 10px;letter-spacing:-.03em}.book-note-grid p{font-size:12px;line-height:1.75;color:#68746d;margin:0}.book-reference{margin-top:20px;padding:17px 20px;background:#f5f4ef;border:1px solid #e1e4dc}.book-reference>div{display:flex;gap:10px;align-items:center;font-size:12px;color:#26372b}.ref-icon{display:grid;place-items:center;width:23px;height:23px;border-radius:50%;background:#dbe8d1;color:#567441;font:600 10px "DM Mono",monospace}.book-reference p{font-size:11px;line-height:1.6;color:#68746d;margin:10px 0 5px}.book-reference small{font-size:9px;color:#879087}.bio-detail-source{display:grid;grid-template-columns:1fr 1.4fr;gap:30px;margin-top:34px;padding:23px 0;border-top:1px solid #cbd0c6;border-bottom:1px solid #cbd0c6;align-items:start}.bio-detail-source h3{font:600 18px Manrope;margin:11px 0}.bio-detail-source p{font-size:11px;line-height:1.8;margin:0}.bio-detail-source a{color:#54733c;text-decoration:none}.bio-detail-source a:hover{text-decoration:underline}.detail-pager{display:flex;justify-content:space-between;margin-top:21px}.detail-pager a{font:9px "DM Mono",monospace;color:#57733f;text-decoration:none}.bio-card-link{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:17px;color:#55753c;font:9px "DM Mono",monospace;text-decoration:none}.bio-card-link span{font-size:14px}.bio-card-link:hover{text-decoration:underline}@media(max-width:850px){.bio-detail-hero{padding:55px 5% 25px}.book-notes{padding:69px 5% 60px}}@media(max-width:620px){.bio-detail-hero{min-height:auto;grid-template-columns:1fr;padding:51px 7% 23px}.bio-detail-copy{padding-bottom:0}.bio-detail-copy h1{font-size:57px}.bio-detail-art{grid-row:2;width:100%;height:300px;min-height:300px;margin:15px auto}.bio-detail-hero .hub-bottom{grid-row:3;font-size:7px}.book-notes{padding:63px 7% 51px}.book-notes-heading{display:block}.book-notes-heading h2{font-size:43px}.book-notes-heading>p{margin-top:16px}.book-note-grid{grid-template-columns:1fr}.book-note-grid article{padding:20px 0 23px}.book-note-grid article+article{border-left:0;border-top:1px solid #cbd0c6;padding-left:0}.book-note-grid h3{margin:15px 0 8px}.bio-detail-source{grid-template-columns:1fr;gap:10px}.detail-pager a{font-size:8px}}