.visual-hub,.visual-task{color:#102c60}.visual-heading{margin:20px 0 26px}.visual-heading h1{font-size:clamp(26px,3vw,42px);line-height:1.15;margin:12px 0}.visual-heading p{max-width:820px;color:#52677e;line-height:1.65}.visual-source-link{display:inline-flex;gap:8px;font-weight:700;color:#2351b5}.visual-task-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.visual-task-card{display:block;border:1px solid #d9e4ef;border-radius:20px;background:#fff;padding:20px;text-decoration:none;color:inherit;box-shadow:0 5px 20px #102c6007;transition:border-color .15s,transform .15s}.visual-task-card:hover{border-color:#2351b5;transform:translateY(-2px)}.visual-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:#52677e}.visual-card-top b{display:grid;place-items:center;width:32px;height:32px;background:#e1f8f3;border-radius:50%;color:#102c60}.visual-thumbnail{height:190px;overflow:hidden;margin:12px -8px 10px;background:#f6f9fc;border-radius:12px;pointer-events:none}.visual-thumbnail svg{width:100%;height:100%;object-fit:contain}.visual-task-card h2{font-size:21px;margin:16px 0 8px;line-height:1.3}.visual-task-card p{font-size:13px;color:#52677e;line-height:1.5}.visual-card-cta{font-size:14px;font-weight:700;color:#2351b5}.visual-breadcrumbs{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:14px;margin:14px 0}.visual-breadcrumbs a{color:#2351b5}.visual-statement,.visual-investigation,.visual-answer{background:#fff;border:1px solid #d9e4ef;border-radius:20px;padding:24px;margin:20px 0;min-width:0}.visual-statement h2,.visual-answer h2,.visual-investigation h2{font-size:23px;line-height:1.3;margin:0 0 18px}.visual-statement>div,.visual-original-choices{font-size:16px;line-height:1.75}.visual-original-choices{padding-left:26px}.visual-original-choices li{margin:8px 0;padding-left:5px}.visual-section-title{display:flex;align-items:center;justify-content:space-between;gap:20px}.visual-section-title .eyebrow{display:block;font-size:11px;margin-bottom:8px}.visual-section-title h2{margin-bottom:0}.visual-control{display:flex;flex-direction:column;gap:12px;min-width:0;font-size:14px;font-weight:600}.visual-control>span{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap}.visual-control output{font-size:13px;color:#2351b5;font-variant-numeric:tabular-nums}.visual-control input[type=range]{width:100%;accent-color:#2351b5;min-height:32px;margin:0}.visual-control select{padding:12px;border:1px solid #bbcee0;border-radius:10px;color:#102c60;background:#fff;max-width:100%;font:inherit}.visual-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;background:#f6f9fc;border-radius:14px;padding:20px;margin:20px 0}.visual-presets{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 18px}.visual-task button{font:inherit;cursor:pointer;border-radius:10px;min-height:42px;padding:10px 16px;border:1px solid #bbcee0;color:#102c60;background:#f6f9fc}.visual-task button:hover{background:#e3f8f4;border-color:#62bfb0}.visual-task button[type=submit],.visual-task button[data-visual-review]{background:#2351b5;color:#fff;border-color:#2351b5;font-weight:700;margin-top:16px}.visual-task button:focus-visible,.visual-task a:focus-visible,.visual-task input:focus-visible,.visual-task select:focus-visible,.visual-task textarea:focus-visible,.visual-task-card:focus-visible,.visual-shortcut:focus-visible{outline:3px solid #168c88;outline-offset:3px}.visual-panels{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}.visual-panels.has-graph{grid-template-columns:repeat(2,minmax(0,1fr))}.visual-panels figure{margin:0;border:1px solid #d9e4ef;background:#f9fbfd;border-radius:14px;overflow:hidden;min-width:0}.visual-svg-scroll{overflow-x:auto;overscroll-behavior-x:contain}.visual-svg-scroll svg{display:block;width:100%;height:auto;min-width:420px;max-height:580px}.visual-panels:not(.has-graph) .visual-svg-scroll{max-width:860px;margin:auto}.visual-panels figcaption{font-size:11px;text-align:center;color:#52677e;padding:9px 12px;background:#fff;border-top:1px solid #e6edf4}.visual-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px;margin:18px 0}.visual-metrics>div{border-radius:12px;background:#f1f6fb;padding:13px 15px;min-width:0}.visual-metrics>div>span{display:block;font-size:11px;color:#52677e;margin-bottom:6px}.visual-metrics>div>strong{font-size:17px;line-height:1.4;display:block;overflow-x:auto}.visual-status{padding:14px 16px;border-left:4px solid #2b9b93;border-radius:0 10px 10px 0;background:#e8f8f3;line-height:1.6;font-weight:600}.visual-caption,.visual-source-note{font-size:13px;color:#52677e;line-height:1.7}.visual-task details{margin-top:16px;border:1px solid #d9e4ef;border-radius:12px;padding:14px 17px;background:#fafcfe}.visual-task details>summary{cursor:pointer;font-weight:600;line-height:1.5;min-height:24px}.visual-task details li{line-height:1.8;margin:10px 0}.visual-task details ol,.visual-task details ul{padding-left:24px}.visual-manual{background:#fff7e7;border-left:3px solid #d69a35;border-radius:0 10px 10px 0;padding:16px;line-height:1.7}.visual-answer form fieldset{border:0;padding:0;margin:0}.visual-answer legend{font-weight:600;margin-bottom:12px}.visual-choice{display:flex;align-items:flex-start;gap:12px;padding:12px;margin:7px 0;background:#f6f9fc;border-radius:12px;line-height:1.65}.visual-choice input{width:20px;height:20px;flex:0 0 auto;accent-color:#2351b5;margin-top:4px}.visual-choice b{color:#2351b5;margin-right:5px}.visual-numeric{display:flex;flex-direction:column;gap:10px;max-width:350px}.visual-answer input[type=text],.visual-answer textarea{font:inherit;font-size:17px;border:1px solid #aebfd2;border-radius:10px;padding:12px;color:#102c60;background:#fff;width:100%;box-sizing:border-box}.visual-answer textarea{display:block;margin-top:10px;resize:vertical}.visual-result{min-height:25px;line-height:1.6;color:#8a4931}.visual-result.is-correct{color:#176953}.visual-table-scroll{overflow-x:auto;margin:20px 0;max-width:100%}.visual-table-scroll table{border-collapse:collapse;min-width:300px;width:100%;font-size:14px}.visual-table-scroll td,.visual-table-scroll th{padding:10px 15px;border:1px solid #d9e4ef;text-align:left}.visual-table-scroll th{background:#edf5fc}.visual-task .katex{font-size:1.05em}.visual-task .katex-display{overflow-x:auto;overflow-y:hidden;padding:5px 0}.visual-shortcut{display:flex;align-items:center;gap:14px;border:1px solid #b4d9da;border-radius:14px;padding:16px 20px;text-decoration:none;color:#102c60;background:linear-gradient(120deg,#edf6ff,#e4f8f1);margin:18px 0}.visual-shortcut>span:first-child{font-size:24px;color:#2351b5}.visual-shortcut>span:last-child{margin-left:auto;font-size:23px}.visual-shortcut strong,.visual-shortcut small{display:block}.visual-shortcut small{color:#52677e;margin-top:4px;line-height:1.4}.visual-nav-link{margin-top:7px;font-size:13px;padding:10px 14px!important;background:#e9f6f4;border:1px solid #cde4e1;border-radius:11px}.exam-visual-link{display:inline-flex;align-items:center;gap:8px;margin:14px 0;padding:10px 15px;border-radius:10px;background:#e4f8f1;color:#145e72;text-decoration:none;font-weight:600}.visual-hub .visual-source-note{margin-top:14px}
@media(max-width:1200px){.visual-panels.has-graph{grid-template-columns:1fr}.visual-svg-scroll svg{min-width:520px;max-height:480px}}@media(max-width:650px){.visual-task-grid{grid-template-columns:1fr}.visual-statement,.visual-investigation,.visual-answer{padding:16px;border-radius:14px}.visual-heading h1{font-size:28px}.visual-section-title{align-items:flex-start;flex-direction:column;gap:14px}.visual-controls{padding:15px;grid-template-columns:minmax(0,1fr)}.visual-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.visual-svg-scroll svg{min-width:460px}.visual-presets button{font-size:13px;padding:8px 11px}.visual-shortcut{padding:15px}.visual-task details{padding:12px}.visual-thumbnail{height:175px}}@media(prefers-reduced-motion:reduce){.visual-task-card{transition:none}.visual-task-card:hover{transform:none}}

.exam-task:focus{outline:2px solid #72cbbb;outline-offset:6px}.exam-task{scroll-margin-top:115px}

.visual-source-image{margin:20px 0 0}.visual-source-image img{display:block;width:100%;max-width:640px;height:auto;border:1px solid #d9e4ef;border-radius:10px}.visual-source-image figcaption{font-size:13px;line-height:1.6;color:#52677e;margin-top:10px;max-width:680px}.visual-source-image a{color:#2351b5}

.visual-statement-diagram{margin:22px 0 0;border:1px solid #d9e4ef;border-radius:14px;overflow:hidden;background:#f6f9fc}.visual-statement-diagram .visual-svg-scroll{max-width:860px;margin:auto}.visual-statement-diagram figcaption{font-size:13px;line-height:1.65;padding:12px 16px;background:#fff;color:#52677e}.visual-source-archive .visual-source-image{margin-top:16px}.visual-source-archive summary{font-size:13px;color:#52677e}