.neet-biology-chapters{--navy:#000;--orange:#ffcc5b;--orange-hover:#f1bf50;--orange-text:#795900;--green:#795900;--cream:#f8f9fa;--sand:#fff9e6;--white:#fff;--ink:#09090b;--muted:#52525b;--line:#e4e4e7;--shadow:0 10px 30px #0000000d;background:var(--cream);color:var(--ink);font-family:Inter,Arial,sans-serif;line-height:1.55}.neet-biology-chapters *{box-sizing:border-box}.neet-biology-chapters h1,.neet-biology-chapters h2,.neet-biology-chapters h3,.neet-biology-chapters p{margin-top:0}.neet-biology-chapters h1,.neet-biology-chapters h2,.neet-biology-chapters h3{color:var(--ink);font-family:Georgia,serif;line-height:1.12}.neet-biology-chapters a{color:inherit}.neet-biology-chapters .wrap{width:min(1120px,100% - 40px);margin:auto}.neet-biology-chapters .hero{padding:64px 0 58px}.neet-biology-chapters .hero-grid{grid-template-columns:1.3fr .7fr;align-items:center;gap:58px;display:grid}.neet-biology-chapters .eyebrow,.neet-biology-chapters .tag{letter-spacing:.2em;text-transform:uppercase;color:var(--orange-text);font-size:11px;font-weight:900;display:inline-block}.neet-biology-chapters .eyebrow{margin-bottom:8px}.neet-biology-chapters h1{margin:17px 0 22px;font-size:clamp(38px,5vw,61px)}.neet-biology-chapters .lead{color:var(--muted);max-width:710px;font-size:18px}.neet-biology-chapters .cta-row{margin-top:26px}.neet-biology-chapters .form-card{background:var(--navy);color:#fff;border:1px solid #27272a;border-radius:12px;padding:30px;box-shadow:0 20px 50px #00000040}.neet-biology-chapters .form-card .cap{letter-spacing:.15em;text-transform:uppercase;color:var(--orange);margin-bottom:8px;font-size:10px;font-weight:900;display:block}.neet-biology-chapters .form-card h3{color:#fff;margin-bottom:6px;font-size:24px}.neet-biology-chapters .form-card label{color:#a1a1aa;letter-spacing:.1em;text-transform:uppercase;margin:12px 0 6px;font-size:10px;font-weight:600;display:block}.neet-biology-chapters .form-card input,.neet-biology-chapters .form-card select{color:#fff;width:100%;height:43px;font:inherit;background:#18181b;border:1px solid #27272a;border-radius:6px;padding:0 13px;transition:border-color .2s}.neet-biology-chapters .form-card input:focus,.neet-biology-chapters .form-card select:focus{border-color:var(--orange);outline:none}.neet-biology-chapters .form-card select option{color:#fff;background:#18181b}.neet-biology-chapters .btn{background:var(--orange);color:#261a00;letter-spacing:.06em;cursor:pointer;border:0;border-radius:6px;justify-content:center;align-items:center;min-height:46px;padding:0 24px;font-weight:900;text-decoration:none;transition:opacity .2s,background-color .2s;display:inline-flex}.neet-biology-chapters .btn:hover{background:var(--orange-hover);opacity:.95}.neet-biology-chapters .form-card .btn{width:100%;margin-top:16px}.neet-biology-chapters .fine,.neet-biology-chapters .status{text-align:center;color:#71717a;margin:9px 0 0;font-size:11px}.neet-biology-chapters .status{color:var(--orange);min-height:17px;font-weight:600}.neet-biology-chapters .stats{background:var(--sand);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:32px 0}.neet-biology-chapters .stats-grid{text-align:center;grid-template-columns:repeat(4,1fr);gap:20px;display:grid}.neet-biology-chapters .stat strong{color:var(--ink);font:700 30px Georgia,serif;display:block}.neet-biology-chapters .stat span{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-size:9px;font-weight:600}.neet-biology-chapters section{border-bottom:1px solid var(--line);padding:66px 0;scroll-margin-top:100px}.neet-biology-chapters .tag{color:var(--orange-text);margin-bottom:13px}.neet-biology-chapters h2{margin-bottom:17px;font-size:clamp(30px,4vw,46px)}.neet-biology-chapters .intro{max-width:800px;color:var(--muted)}.neet-biology-chapters .chapter-list{margin-top:34px}.neet-biology-chapters .chapter-card{border:1px solid var(--line);background:var(--white);box-shadow:var(--shadow);border-radius:10px;grid-template-columns:110px 1fr;margin-bottom:22px;transition:border-color .15s,box-shadow .15s;display:grid;overflow:hidden}.neet-biology-chapters .chapter-card:hover{border-color:var(--orange);box-shadow:0 6px 20px #00000012}.neet-biology-chapters .chapter-rank{background:var(--navy);color:var(--orange);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:20px 10px;display:flex}.neet-biology-chapters .chapter-rank .num{color:var(--orange);font:700 38px/1 Georgia,serif}.neet-biology-chapters .chapter-rank .lbl{letter-spacing:.15em;text-transform:uppercase;color:#a1a1aa;margin-top:6px;font-size:9px;font-weight:700}.neet-biology-chapters .chapter-body{padding:26px 30px}.neet-biology-chapters .chapter-body h3{margin-bottom:6px;font-size:23px}.neet-biology-chapters .chapter-tags{text-transform:uppercase;letter-spacing:.09em;color:var(--orange-text);margin-bottom:14px;font-size:11px;font-weight:800}.neet-biology-chapters .chapter-body p{color:var(--muted);margin-bottom:12px;font-size:14.5px;line-height:1.65}.neet-biology-chapters .chapter-body .topics{margin-bottom:0;font-size:13.5px}.neet-biology-chapters .chapter-body .topics b{color:var(--ink);font-weight:800}.neet-biology-chapters .chapter-body .tip{color:var(--ink);background:var(--sand);border-left:3px solid var(--orange);border-radius:4px;margin:14px 0 0;padding:12px 15px;font-size:13px;line-height:1.55}.neet-biology-chapters .chapter-body .tip b{color:var(--orange-text);font-weight:800}.neet-biology-chapters .chapters-note{color:var(--muted);max-width:800px;margin-top:8px;font-size:14px}.neet-biology-chapters .review-grid{grid-template-columns:repeat(3,1fr);gap:24px;margin-top:30px;display:grid}.neet-biology-chapters .review-card{background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;flex-direction:column;padding:26px;display:flex}.neet-biology-chapters .review-card .tag{margin-bottom:10px}.neet-biology-chapters .review-card h3{margin-bottom:10px;font-size:19px}.neet-biology-chapters .review-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.65}.neet-biology-chapters .source-note{color:#9a927a;margin-top:20px;font-size:12px;font-style:italic}.neet-biology-chapters .proof{background:var(--navy);color:#fff;text-align:center;border:1px solid #27272a;border-radius:8px;margin-top:58px;padding:36px 20px;box-shadow:0 10px 30px #00000026}.neet-biology-chapters .proof p{max-width:820px;margin:0 auto 10px;font-size:16px;line-height:1.6}.neet-biology-chapters .proof small{color:var(--orange);letter-spacing:.1em;font-weight:900}.neet-biology-chapters .results{padding:42px 0}.neet-biology-chapters .result-grid{text-align:center;grid-template-columns:repeat(5,1fr);gap:16px;display:grid}.neet-biology-chapters .result strong{color:var(--ink);font:700 31px Georgia,serif;display:block}.neet-biology-chapters .result span{color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-size:9px;font-weight:600}.neet-biology-chapters .final-grid{grid-template-columns:1.25fr .75fr;align-items:center;gap:58px;display:grid}.neet-biology-chapters .final-grid h2{max-width:650px}@media (max-width:900px){.neet-biology-chapters .hero-grid,.neet-biology-chapters .final-grid,.neet-biology-chapters .review-grid{grid-template-columns:1fr}.neet-biology-chapters .result-grid{grid-template-columns:repeat(3,1fr);gap:26px 16px}.neet-biology-chapters .chapter-card{grid-template-columns:1fr}.neet-biology-chapters .chapter-rank{flex-direction:row;justify-content:flex-start;gap:10px;padding:12px 20px}.neet-biology-chapters .chapter-rank .num{font-size:26px}.neet-biology-chapters .chapter-rank .lbl{margin-top:0}}@media (max-width:650px){.neet-biology-chapters .wrap{width:calc(100% - 26px)}.neet-biology-chapters .stats-grid{grid-template-columns:1fr}.neet-biology-chapters .result-grid{grid-template-columns:repeat(2,1fr)}.neet-biology-chapters .chapter-body{padding:22px 20px}.neet-biology-chapters .hero{padding:42px 0}.neet-biology-chapters section{padding:48px 0}}@media print{.neet-biology-chapters .btn,.neet-biology-chapters .form-card,.neet-biology-chapters .proof,.neet-biology-chapters .chapter-rank{-webkit-print-color-adjust:exact;print-color-adjust:exact}.neet-biology-chapters section,.neet-biology-chapters .chapter-card{break-inside:avoid}}.neet-biology-chapters .brand-link{color:var(--orange-text);border-bottom:1px solid var(--orange);font-weight:900;text-decoration:none}.neet-biology-chapters .brand-link:hover{color:var(--ink);border-color:var(--ink)}.neet-biology-chapters .hero-sub{color:#9a927a;margin-top:14px;font-size:13px}.neet-biology-chapters .cta-row{flex-wrap:wrap;align-items:center;gap:18px;display:flex}.neet-biology-chapters .using-grid{grid-template-columns:1fr 1.1fr;align-items:start;gap:48px;display:grid}.neet-biology-chapters .check-row{border-bottom:1px solid var(--line);color:var(--muted);gap:10px;padding:12px 0;font-size:14.5px;display:flex}.neet-biology-chapters .check-row:last-child{border-bottom:0}.neet-biology-chapters .check-row .mark{color:var(--orange-text);flex-shrink:0;font-weight:900}.neet-biology-chapters .students-row{grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px;display:grid}.neet-biology-chapters .student-card{background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;overflow:hidden}.neet-biology-chapters .student-card svg{background:var(--sand);width:100%;height:auto;display:block}.neet-biology-chapters .student-caption{color:var(--muted);border-top:1px solid var(--line);padding:12px 14px;font-size:12.5px}.neet-biology-chapters .students-note{color:#9a927a;margin-top:18px;font-size:12px;font-style:italic}.neet-biology-chapters .faq-list{background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:8px;margin-top:26px;padding:4px 26px}.neet-biology-chapters .faq-item{border-bottom:1px solid var(--line);padding:20px 0}.neet-biology-chapters .faq-item:last-child{border-bottom:0}.neet-biology-chapters .faq-q{color:var(--ink);margin-bottom:8px;font-family:Georgia,serif;font-size:17px;font-weight:700}.neet-biology-chapters .faq-a{color:var(--muted);margin:0;font-size:14.5px;line-height:1.65}.neet-biology-chapters .related-row{grid-template-columns:repeat(2,1fr);gap:24px;margin-top:22px;display:grid}.neet-biology-chapters .related-item{background:var(--sand);border:1px solid #ffcc5b73;border-radius:8px;padding:20px 22px}.neet-biology-chapters .related-item .sub{color:var(--muted);margin-top:8px;font-size:13px}@media (max-width:900px){.neet-biology-chapters .using-grid,.neet-biology-chapters .related-row{grid-template-columns:1fr;gap:30px}.neet-biology-chapters .students-row{grid-template-columns:1fr}}@media (max-width:650px){.neet-biology-chapters .faq-list{padding:4px 18px}}
