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/* Quiet surfaces keep the mathematical models and student reasoning in focus. */
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.grades{border-color:#c2cfca;border-radius:15px;overflow:visible;background:#fffefa}
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.panel:first-child::after{display:none}.panel:first-child .breadcrumb{color:#5c726d}.panel:first-child .code-tag{color:#3b6c70;border-color:#b9cfc4}.panel:first-child .outcome-links a{color:#345e63;text-decoration:underline}.panel:first-child .secondary{color:#345e63;border-color:#a6beb7;border-radius:8px}.panel:first-child .soft{border-color:#c9d8cf;color:#5c726d}
.problem,.problem[aria-pressed=true]{border-radius:12px;box-shadow:none}.problem{background:#fffefa;border-color:#d3dcd4}.problem[aria-pressed=true]{background:#e5ede1;border-color:#91aaa0}.problem:hover{transform:none;background:#edf3e9}.problem[aria-pressed=true]::after{content:'';width:7px;height:7px;top:14px;right:14px;border-radius:50%;background:#507d87}
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@media(max-width:760px){.panel:first-child{padding:24px}.conflict-task{padding:17px}.formula{font-size:14px}.representation-keys>span{font-size:11px}}
@media(max-width:370px){header{flex-wrap:wrap;gap:14px;padding:18px 0}header nav{width:100%;justify-content:space-between}.intro h1{font-size:39px}}
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