.study-heading{display:flex;justify-content:space-between;align-items:start;gap:24px;margin-bottom:25px}.study-heading h2{font:32px/1.2 var(--serif);color:#244838}.study-heading p{max-width:720px;color:var(--muted)}.study-picker{display:flex;flex-direction:column;gap:8px;font-weight:650;max-width:820px}.study-picker select,.study-field select{width:100%;padding:13px;border:1px solid #bacab3;border-radius:7px;background:#fff;color:#294b3b}.study-task-title{margin:30px 0 20px}.study-task-title h3{font:25px/1.3 var(--serif);margin:12px 0 5px}.study-task-title p{color:var(--muted);max-width:900px}#study-form{border:1px solid var(--line);border-radius:10px;padding:26px;background:#fff}.study-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.study-field{min-width:0;display:flex;flex-direction:column;gap:7px;font-weight:600}.study-field>span{min-height:24px}.study-number{display:flex;border:1px solid #c6d2bd;border-radius:6px;overflow:hidden;min-height:49px}.study-number input{min-width:0;flex:1;border:0;padding:10px 12px;width:70px}.study-number small{display:flex;align-items:center;max-width:47%;background:#f0f4e9;padding:8px 10px;font-size:11px;font-weight:400;color:#64735a}.study-field select{height:auto;min-height:49px}.study-input-table{margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}.study-input-table h3{margin:0 0 8px;font-size:16px}.study-input-table p{color:var(--muted);font-size:12px}.study-table-scroll{overflow-x:auto;max-width:100%;border:1px solid #dce3d5;border-radius:5px}.study-table-scroll table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums;font-size:12px}.study-table-scroll th{background:#eef3e7;color:#4d6650;text-align:left;padding:10px;white-space:nowrap}.study-table-scroll td{border-top:1px solid #e1e6db;padding:9px;white-space:nowrap}.study-input-table td{padding:4px}.study-input-table input{width:100%;min-width:90px;border:1px solid #d6dfcc;padding:9px;border-radius:3px}.study-input-table th:first-child{min-width:38px}.study-paste{margin-top:10px;color:#557454}.study-paste textarea{display:block;min-height:110px;width:100%;margin:10px 0;border:1px solid #c5d2bc;padding:12px;font-family:monospace}.study-actions{display:flex;gap:18px;margin-top:30px;align-items:center}.study-unit-note{font-size:12px;color:var(--muted);margin-bottom:0}.study-empty{margin:24px 0;padding:28px;border:1px dashed #becbb1;border-radius:8px;color:#77836e}.study-solution{margin-top:35px}.study-solution-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0 0 20px}.study-solution-heading h3{font:27px var(--serif);margin:0}.study-answers{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px}.study-answers>div{background:#eaf2e1;border:1px solid #c5d6b4;border-radius:6px;padding:17px}.study-answers span{display:block;color:#617953;font-size:12px}.study-answers strong{display:block;font-size:22px;font-weight:600;margin-top:6px;overflow-wrap:anywhere}.study-answers strong small{font-size:12px;font-weight:400}.study-graphs{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:18px;margin:25px 0}.study-graphs figure{margin:0;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:#fbfcf7}.study-graphs svg{display:block;width:100%;height:auto;min-width:360px;max-height:650px}.study-graphs svg text{font:12px Arial,sans-serif;fill:#385543}.study-notes{border-left:3px solid #aaba8e;padding:4px 18px;color:#66755e;font-size:12px}.study-notes p{margin:10px 0}.study-work-heading{font:26px var(--serif);margin:35px 0 18px}.study-working{padding-left:28px;max-width:100%}.study-working li{background:white;border:1px solid var(--line);border-radius:6px;margin:0 0 15px;padding:18px 22px;break-inside:avoid}.study-working h4{margin:0 0 12px;font-size:15px}.study-working p{margin:9px 0;overflow-wrap:anywhere}.study-formula{font-family:Georgia,'Times New Roman',serif;font-size:18px;background:#f1f5eb;padding:12px;line-height:1.7;overflow-wrap:anywhere}.study-step-answer{font-weight:600;color:#365c3f}.study-result-table{margin:25px 0}.study-result-table h4{font-size:15px}.study-sources{font-size:12px;color:#71816a;margin:30px 0}.study-sources p{margin:5px 0}.topbar{height:auto;min-height:76px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px}.view-nav{max-width:100%;overflow-x:auto}
@media(max-width:1100px){.study-fields{grid-template-columns:repeat(2,minmax(0,1fr))}.study-heading{flex-direction:column}.study-solution-heading{align-items:start;flex-direction:column}}
@media(max-width:620px){.study-fields{grid-template-columns:1fr}#study-form{padding:17px}.study-actions{flex-wrap:wrap}.study-working{padding-left:20px}.study-working li{padding:14px}.study-graphs figure{overflow-x:auto}.study-heading h2{font-size:28px}.study-formula{font-size:16px}}
@media print{#study-form,.study-heading,.study-picker,.study-task-title,.study-solution-heading>div{display:none!important}.study-solution{margin:0}.study-answers{grid-template-columns:repeat(3,1fr)}.study-graphs{grid-template-columns:1fr 1fr}.study-graphs svg{min-width:0}.study-working li{border:0;padding:8px}.study-formula{font-size:11pt}.study-table-scroll{overflow:visible;border:0}.study-table-scroll table{font-size:7pt}.study-table-scroll th,.study-table-scroll td{padding:4px}.study-result-table{break-inside:auto}.study-solution-heading h3{font-size:20pt}.study-notes{font-size:8pt}.study-answers strong{font-size:13pt}}

.study-graphs figcaption{padding:12px 16px;color:#65775e;font-size:12px;line-height:1.55;border-top:1px solid #e2e8da}.study-matrix{padding:14px 0;overflow-x:auto}.study-matrix math{font-size:20px;min-width:max-content;margin:12px 0}.study-matrix small{color:#6d7f66}