/* Classroom flow: source, action and evidence share the existing SZ palette. */
#ws-root,#ppt-root{max-width:1100px;margin-inline:auto}
#ws-root .ws-card,#ppt-root .ws-card{margin-bottom:24px}
#ws-root h2,#ppt-root h2{max-width:32em;line-height:1.25}
#ws-root .ws-card>p,#ppt-root .ws-card>p{max-width:76ch}
.ws-action-bar{display:flex;align-items:center;flex-wrap:wrap;gap:14px;padding:20px 0;margin-top:12px;border-top:1px solid var(--line)}
.ws-action-bar>span{font-size:14px;color:var(--muted);max-width:42ch}
.ws-action-bar .button{min-height:48px;white-space:normal}
.ws-teaching-cue{margin:22px 0;padding:6px 0 6px 18px;border-left:3px solid #e6c32b;max-width:76ch}
.ws-teaching-cue strong{display:block;font-size:14px;color:#53634f}
.ws-teaching-cue p{margin:7px 0 0;line-height:1.65}
.ws-result-origin{display:block;font-size:14px;font-weight:600;color:#53634f;margin-bottom:16px}
.ws-options,.ws-exports{border-top:1px solid var(--line);padding:14px 0;margin-top:18px}
.ws-options>summary,.ws-exports>summary,.ws-prompt>summary,.ws-live-options>summary{cursor:pointer;min-height:44px;display:list-item;align-content:center;font-weight:600}
.ws-exports>summary{font-size:14px;color:var(--muted)}
.ws-options[open]>summary,.ws-exports[open]>summary{margin-bottom:14px}
.ws-exports .button-row{margin:8px 0}
#ws-root .ws-status:empty{display:none}
#ws-root .ws-status:not(:empty){margin-block:16px;padding:14px 16px;border-left:3px solid #a68b35;background:#fff9df;white-space:pre-line}
#ws-root .ws-result:focus,#ppt-root .ws-result:focus{outline:2px solid #7b8e72;outline-offset:5px}
#ws-root .ws-result,#ppt-root .ws-result{scroll-margin-block:100px}
.ws-sheet-tabs{display:flex;gap:0;overflow:auto;border-bottom:2px solid #bbccba;margin-top:24px}
.ws-sheet-tabs button{display:flex;align-items:center;gap:12px;flex-shrink:0;min-height:52px;border:0;border-bottom:4px solid transparent;background:#f3f5ef;padding:14px 22px;color:var(--ink);font:inherit;cursor:pointer}
.ws-sheet-tabs button[aria-pressed=true]{border-bottom-color:#24513c;background:#e7efe3;font-weight:600}
.ws-sheet-tabs span{font-size:12px;font-weight:400;color:#59695f}
.ws-sheet-tabs+.ws-table{margin-top:0;max-height:480px;overflow:auto;border-bottom:1px solid var(--line)}
.ws-sheet-tabs+.ws-table th{position:sticky;top:0;background:#eef3e9;z-index:1}
.ws-sheet-footer{display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:13px;color:var(--muted);margin-top:12px}
.ws-sheet-footer .button{font-size:13px;min-height:44px}
.mb-workspace .mb-visible-actions{grid-template-columns:1fr 1fr;padding-top:10px}
.mb-visible-actions p{grid-column:1/-1;margin:3px 0 2px;font-size:12px;line-height:1.4;color:#65616f}
.mb-workspace .mb-start-guide{position:static;transform:none;inset:auto;display:flex;flex-direction:column;align-items:center;gap:12px;width:auto;max-width:290px;margin:30px auto;padding:15px;text-align:center;opacity:1;pointer-events:auto}
.mb-workspace .mb-start-guide>svg{width:42px;height:42px;color:#b7babb}
.mb-start-guide h3{font-size:17px;margin:0}.mb-start-guide p{font-size:14px;line-height:1.5;margin:0;color:#697077}
.mb-workspace .mb-prompt-edit{font-size:12px;text-decoration:underline;text-underline-offset:3px;padding:6px 0;min-height:40px}
.mb-workspace .mb-model-label{font-size:11px;margin-left:auto;white-space:nowrap}
.mb-workspace .mb-composer-tools{gap:8px}.mb-workspace .mb-work-tools{justify-content:space-between;padding-inline:10px;gap:4px;height:auto;min-height:42px}
.mb-work-tools>button,.mb-work-tools>span{font-size:11px!important}.mb-work-tools>span{color:#65616f}
.mb-workspace .mb-review-guide{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;padding:16px 20px;background:#f4f6f0;border-bottom:1px solid var(--mb-line)}
.mb-review-guide strong{font-size:14px}.mb-review-guide>span{flex:1 1 380px;line-height:1.5;font-size:13px;max-width:85ch}
.mb-workspace .mb-review-guide button{background:#fff;border:1px solid #bac9b9;font-size:13px;min-height:44px}
.mb-reset-confirm{padding:18px 20px;background:#fff8dd;border-bottom:1px solid #e1ce81}.mb-reset-confirm p{margin:0 0 12px;font-size:14px}
.mb-workspace .mb-reset-confirm button{border:1px solid #a89c6a;margin-right:10px;min-height:44px}
.ppt-prepared .button-row{margin-bottom:24px}.ppt-prepared .ws-kicker,.ppt-intro .ws-kicker{text-transform:none;letter-spacing:normal}
.ppt-live>summary{min-height:48px;align-content:center}.ppt-live .ws-card{margin-top:18px}
.workshop-launches{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:18px 0}
.workshop-launches a{display:flex;align-items:center;min-height:58px;padding:14px;background:#edf3e8;border:1px solid #c5d4bf;border-radius:8px;color:#19372b;font-weight:600;text-decoration:none}
@media(max-width:1000px){.ws-action-bar{align-items:stretch}.ws-action-bar .button{flex:1 1 240px}.ws-sheet-tabs button{padding:12px 16px}.ws-sheet-footer{flex-wrap:wrap}.workshop-launches{grid-template-columns:1fr 1fr}.mb-workspace .mb-start-guide{margin:20px auto}.mb-workspace .mb-visible-actions button{min-height:44px}.mb-workspace .mb-work-tools>button{min-height:44px}}
@media(max-width:600px){.ws-sheet-tabs span{display:none}.ws-action-bar>span{flex-basis:100%}.ws-teaching-cue{padding-left:12px}.mb-workspace .mb-composer-tools{flex-wrap:wrap;height:auto}.mb-workspace .mb-model-label{font-size:10px}.workshop-launches{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{scroll-behavior:auto!important}}
@media print{.ws-action-bar,.ws-options,.ws-exports,.ws-sheet-tabs,.mb-visible-actions{display:none!important}}