.case-atlas{--line:#d9dce4;--ink:#293449;margin:32px 0;padding:24px;border:1px solid var(--line);border-radius:14px;background:#fafbfefe;color:var(--ink)}
.case-atlas *{box-sizing:border-box}.case-atlas [hidden]{display:none!important}.atlas-heading{display:flex;align-items:center;justify-content:space-between;gap:24px}.case-atlas h4{font:600 1.45rem/1.3 Georgia,serif;margin:6px 0}.case-atlas .atlas-kicker{font:650 .72rem/1.5 system-ui;letter-spacing:.08em;text-transform:uppercase;color:#62677b;margin:0}.case-atlas .atlas-intro{font-size:.94rem;line-height:1.6;max-width:68ch;margin:12px 0 24px}.atlas-picker{font:600 .75rem/1.5 system-ui;display:grid;gap:6px;min-width:180px}.atlas-picker select{font:500 .9rem/1.5 system-ui;padding:10px 32px 10px 12px;min-height:44px;border:1px solid #bbc3d0;border-radius:7px;background:white;color:var(--ink)}
.atlas-workspace{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:24px;align-items:start}.atlas-paper{position:relative;min-width:0;height:400px;border:1px solid #e0ddd6;border-radius:10px;background-color:#fffefb;background-image:radial-gradient(#d8d9df .7px,transparent .7px);background-size:18px 18px;overflow:hidden}.atlas-paper svg{position:absolute;width:100%;height:100%;inset:0;pointer-events:none}.atlas-paper path{stroke:#7c87a2;stroke-width:.35;fill:none;vector-effect:non-scaling-stroke;stroke-width:1.5px}.atlas-node{position:absolute;left:var(--x);top:var(--y);transform:translate(-50%,-50%);width:max-content;max-width:36%;min-height:44px;border:1px solid #abb7cc;border-radius:9px;padding:9px 12px;font:600 .8rem/1.35 system-ui;color:#2c4665;background:#eaf1fc;cursor:pointer;box-shadow:0 3px 10px #29344909}.atlas-node.tone-1{color:#285a78;background:#e8f2f9;border-color:#a9c7db}.atlas-node.tone-2{color:#684a83;background:#f1eafa;border-color:#cdb7df}.atlas-node.tone-3{color:#356550;background:#eaf4ef;border-color:#a9cbbb}.case-atlas[data-enhanced] .atlas-node[data-seen="false"]{background:#f8f8fa;color:#727787;border-color:#d7dae2;box-shadow:none}.case-atlas[data-enhanced] path[data-seen="false"]{stroke:#d8dbe2;stroke-dasharray:3 4}.atlas-node[aria-pressed="true"]{outline:2px solid currentColor;outline-offset:3px}.atlas-caption{position:absolute;bottom:8px;left:16px;right:16px;text-align:center;font:500 .7rem/1.4 system-ui!important;color:#687187;margin:0!important}.atlas-lesson{padding:24px;background:#fff;border:1px solid var(--line);border-radius:10px}.case-atlas h5{font:600 1.2rem/1.4 system-ui;margin:10px 0 20px}.case-atlas .atlas-write{white-space:pre-line;font:600 1.05rem/1.6 Georgia,serif;margin:0 0 20px;padding:16px;background:#f1f4fa;border-left:3px solid #677ca7}.atlas-write span{display:block;font:650 .7rem/1.5 system-ui;text-transform:uppercase;letter-spacing:.05em;color:#5c6680;margin-bottom:8px}.case-atlas details{border-top:1px solid var(--line);padding:0;margin:0}.case-atlas summary{min-height:48px;padding:14px 0;cursor:pointer;font:600 .9rem/1.4 system-ui}.case-atlas details p{font-size:.93rem;line-height:1.65;margin:0 0 18px}.atlas-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);margin-top:24px;padding-top:20px}.atlas-toolbar p{font:500 .8rem/1.4 system-ui;margin:0;color:#616b80}.atlas-toolbar button{font:600 .86rem/1.4 system-ui;padding:11px 16px;min-height:44px;border:1px solid #b4bed0;border-radius:7px;background:#fff;color:#334968;cursor:pointer}.atlas-toolbar [data-next]{background:#334968;color:#fff;border-color:#334968}.atlas-toolbar button:disabled{opacity:.4;cursor:default}.case-atlas :is(button,select,summary):focus-visible{outline:3px solid #987624;outline-offset:4px}.atlas-node:hover{filter:brightness(.97)}
@media(max-width:1000px){.atlas-workspace{grid-template-columns:1fr}.atlas-paper{height:390px}.atlas-node{max-width:28%}}
@media(max-width:550px){.case-atlas{padding:16px;margin:24px 0}.atlas-heading{display:block}.atlas-picker{margin-top:16px}.atlas-workspace{gap:16px}.atlas-paper{height:360px}.atlas-node{font-size:.69rem;padding:7px;max-width:31%}.atlas-node[data-node-step="2"]{left:17%}.atlas-node[data-node-step="3"]{left:83%}.atlas-lesson{padding:18px}.atlas-toolbar{flex-wrap:wrap}.atlas-toolbar p{order:-1;width:100%;text-align:center}.atlas-toolbar button{flex:1}.case-atlas h4{font-size:1.3rem}}
@media(prefers-reduced-motion:no-preference){.atlas-node,.atlas-paper path{transition:background-color .25s,color .25s,stroke .25s}.case-atlas[data-enhanced] .atlas-lesson:not([hidden]){animation:atlas-reveal .2s ease-out}@keyframes atlas-reveal{from{opacity:.35;transform:translateY(4px)}to{opacity:1;transform:none}}}
@media print{.atlas-picker,.atlas-toolbar{display:none!important}.case-atlas .atlas-lesson[hidden]{display:block!important}.atlas-workspace{display:block}.atlas-lesson{break-inside:avoid;margin-top:16px}.atlas-paper{height:350px}}