.calculation-tools{padding:16px 14px;border-top:1px solid var(--line);background:#fbfcfe}.calculation-tools h3{margin:0 0 12px;font-size:15px}.calculation-buttons{display:flex;flex-wrap:wrap;gap:7px}.calculation-buttons button{flex:1 1 160px;text-align:left;min-height:44px;line-height:1.35}.calculation-buttons button[aria-pressed=true]{background:var(--blue);color:#fff;border-color:var(--blue)}.calculation-settings{border-top:1px solid var(--line);margin-top:15px;padding-top:14px}.calculation-settings:empty{display:none}.operand-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.operand-grid label{margin:0}.vector-checks{display:flex;flex-wrap:wrap;gap:7px}.vector-checks label{display:flex;align-items:center;gap:6px;margin:0;padding:7px 9px;border:1px solid var(--line);border-radius:7px;font-size:13px;overflow-wrap:anywhere}.vector-checks input{margin:0}.calculation-settings .hint{margin:0 0 10px}.solution-section{margin-top:26px}.solution-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}.solution-head h2{font-size:20px}.status-pill{display:inline-block;font-size:12px;background:#eef5ff;color:var(--blue);padding:5px 10px;border-radius:20px}.calc{background:white;border:1px solid var(--line);border-radius:11px;padding:24px;margin-bottom:14px;min-width:0}.calc h3{font-size:19px;margin:0 0 14px;font-weight:650}.calc h3 span{color:var(--blue);margin-right:10px}.calc p{font-size:14px;margin:10px 0}.force-results{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,330px),1fr));gap:16px}.force-card{border:1px solid var(--line);border-radius:9px;padding:18px;min-width:0;background:#fff}.force-card h4{font-size:16px;margin:0 0 12px}.teaching-sketch{display:block;width:100%;max-width:560px;margin:0 auto 15px;background:#fff}.teaching-sketch text{font-family:system-ui,sans-serif}.formula{font-size:19px;line-height:1.65;margin:14px 0 4px;overflow-wrap:anywhere}.numeric{font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.answer{border:1px solid #c9dcf6;background:#eef5ff;color:var(--ink);border-radius:9px;padding:16px;margin-top:18px;overflow-wrap:anywhere}.answer strong{font-weight:650}.solution-empty{background:#fff;border:1px dashed #b9c9dc;border-radius:9px;padding:24px;color:var(--muted);font-size:14px}.data-table{border-collapse:collapse;width:100%;font-size:14px;margin:12px 0}.data-table th,.data-table td{border:1px solid var(--line);padding:8px 10px;text-align:left;overflow-wrap:anywhere}.data-table th{background:#f5f8fc;font-weight:600}.table-wrap{overflow-x:auto}.solution-section .error{padding:14px;background:#fff0ed;border-radius:7px}.calc .hint{font-size:13px;color:var(--muted)}.calc .formula sub{font-size:.7em}.print-solution{min-height:36px}@media(max-width:600px){.calc{padding:16px}.force-card{padding:14px}.formula{font-size:17px}.operand-grid{grid-template-columns:1fr}.solution-head{flex-wrap:wrap}.calculation-buttons button{flex-basis:140px;font-size:13px}.data-table th,.data-table td{padding:7px}.solution-head h2{font-size:18px}}@media print{header,.page-heading,.inspector,.toolbox,.canvas-head,.canvas-bottom,.calculation-tools,.stage-note,.print-solution{display:none!important}body{background:white}.workbench{display:block}.canvas-pane{max-width:650px;margin:auto;border:0}#scene{height:340px}.calc,.force-card{break-inside:avoid}.calc{border:0;padding:10px}.solution-section{margin-top:15px}.solution-empty{display:none}main{padding:0}.formula{font-size:16px}}

.projection-placement{margin-top:14px;max-width:360px}.projection-placement .hint{margin-bottom:8px}