:root{color:#172019;font-synthesis:none;background:#eef0e8;font-family:Inter,ui-sans-serif,system-ui,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,textarea,select{font:inherit}.shell{width:min(760px,100% - 32px);margin:0 auto;padding:64px 0 40px}header{margin-bottom:32px}.eyebrow{color:#37634b;letter-spacing:.12em;text-transform:uppercase;font-size:.78rem;font-weight:750}h1{max-width:620px;margin:8px 0 12px;font-family:Georgia,serif;font-size:clamp(2.3rem,7vw,4.4rem);font-weight:500;line-height:.98}.lede{color:#536057;max-width:580px;line-height:1.6}.session-bar{justify-content:space-between;align-items:center;gap:20px;display:flex}.session-bar>div{color:#536057;align-items:center;gap:12px;font-size:.85rem;display:flex}.quiet-button{color:#244f3a;background:0 0;border:1px solid #aeb8ad;min-width:auto;padding:7px 12px}.session-meta{color:#657168;flex-wrap:wrap;gap:8px 18px;margin:-16px 0 18px;font-size:.8rem;display:flex}.stepper{z-index:5;background:#eef0e8;grid-template-columns:repeat(6,minmax(0,1fr));gap:6px;margin:0 0 28px;padding:10px 0;display:grid;position:sticky;top:0}.stepper [role=tab]{color:#536057;text-align:center;text-transform:capitalize;background:#f9faf5;border:1px solid #ccd2c7;border-radius:9px;min-width:0;padding:9px 5px;font-size:.78rem}.stepper [role=tab].is-current{border-color:#244f3a}.stepper [aria-selected=true]{color:#244f3a;background:#d7eadb;border-color:#244f3a;font-weight:750}.tab-status{margin-top:4px;font-size:.65rem;font-weight:400;display:block}.stage-workspace{min-width:0}.stage-workspace h2{scroll-margin-top:112px}.stage-view-notice{color:#536057;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;margin:-16px 0 20px;font-size:.86rem;display:flex}.stage-view-notice p{margin:0;line-height:1.5}.stage-panel-title{color:#244f3a;margin:0 0 30px;font-family:Georgia,serif;font-weight:500}.step-descriptor{background:#f9faf5;border:1px solid #ccd2c7;border-left:3px solid #37634b;border-radius:12px;margin:-10px 0 30px;padding:16px 20px}.step-descriptor h2{color:#244f3a;letter-spacing:.1em;text-transform:uppercase;margin:0 0 6px;font-size:.78rem;font-weight:750}.step-descriptor p{color:#536057;margin:0;font-size:.94rem;line-height:1.6}.record-panel{background:#f9faf5;border:1px solid #ccd2c7;border-radius:14px;margin:18px 0;padding:18px 22px}.record-panel h2{margin:0 0 8px;font-family:Georgia,serif;font-weight:500}.record-panel h3{margin:8px 0}.record-panel p{line-height:1.5}.record-panel form{margin-top:12px}.record-panel form button{margin-top:10px}.record-panel details{border-top:1px solid #d9ded5;padding:10px 0}.record-panel summary{cursor:pointer;font-weight:700}.plan-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.plan-grid>div:first-child{grid-column:1/-1}.prompt-layout{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.prompt-layout>*{min-width:0}.plan-reference{background:#fff;border:1px solid #d9ded5;border-radius:10px;padding:12px}.run-list{gap:12px;margin-top:14px;display:grid}.run-choice{background:#fff;border:1px solid #d9ded5;border-radius:10px;justify-content:space-between;align-items:center;gap:18px;padding:14px;display:flex}.run-choice>div{min-width:0}.run-choice p{margin:5px 0 0}.run-status,.run-metadata{color:#657168;font-size:.82rem}.run-answer{background:#fff;border:1px solid #d9ded5;border-radius:10px;padding:14px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.86rem}.integrity-hash{overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.82rem}.preserve-lines{white-space:pre-wrap;overflow-wrap:anywhere}.label-counts,.message-signals{flex-wrap:wrap;gap:6px;display:flex}.signal-badge{color:#244f3a;background:#eef5ec;border:1px solid #aeb8ad;border-radius:999px;padding:4px 8px;font-size:.72rem;font-weight:700;display:inline-block}.message-signals{margin-top:5px}.privacy-list{gap:12px;display:grid}.privacy-subject{background:#fff;border:1px solid #d9ded5;border-radius:10px;justify-content:space-between;align-items:center;gap:18px;padding:14px;display:flex}.privacy-subject p{color:#657168;margin:4px 0 0;font-size:.85rem}.privacy-actions{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.privacy-actions button{min-width:auto;padding:8px 13px}.danger-button{background:#8f2f27}.lecturer-shell{width:min(1040px,100% - 32px)}.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.84rem}th,td{text-align:left;border-bottom:1px solid #d9ded5;padding:8px}.audit-id{overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.8rem}.evidence-session{border-top:1px solid #d9ded5;margin-top:14px;padding-top:10px}.evidence-event{background:#fff;border-left:3px solid #aeb8ad;margin:9px 0;padding:10px 12px}.evidence-event p{margin:5px 0}.transcript{background:#f9faf5;border:1px solid #ccd2c7;border-radius:18px 18px 4px;min-height:260px;padding:24px;box-shadow:0 20px 50px #2c3a2f14}.empty{color:#727a73}.message{max-width:82%;margin-bottom:18px}.message span{color:#657168;text-transform:uppercase;font-size:.75rem;font-weight:700}.message p{white-space:pre-wrap;border-radius:12px;margin:5px 0 0;padding:12px 15px;line-height:1.5}.message.student{margin-left:auto}.message.student p{background:#d7eadb}.message.tutor p{background:#fff;border:1px solid #d9ded5}form{margin-top:20px}label{margin-bottom:8px;font-weight:700;display:block}textarea{resize:vertical;width:100%;color:inherit;background:#fff;border:1px solid #aeb8ad;border-radius:10px;padding:14px}textarea:focus{border-color:#37634b;outline:3px solid #b9d7c2}select{width:100%;min-width:0;max-width:100%;color:inherit;text-overflow:ellipsis;background:#fff;border:1px solid #aeb8ad;border-radius:10px;padding:12px 14px;line-height:1.5}select:focus{border-color:#37634b;outline:3px solid #b9d7c2}.chat-switcher{justify-items:start;gap:24px;margin-top:20px;display:grid}.saved-chat-field{width:100%;min-width:0}input{border:1px solid #aeb8ad;border-radius:10px;width:100%;padding:12px 14px}.sign-in-shell{max-width:620px}.sign-in-card,.local-sign-in{background:#f9faf5;border:1px solid #ccd2c7;border-radius:14px;padding:22px}.sign-in-card button{margin-top:14px}.local-sign-in{margin-top:18px}.local-sign-in h2{margin-top:0;font-family:Georgia,serif;font-weight:500}.account-grid{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.account-grid button{border-radius:10px;min-width:0}.account-grid span,.account-grid small{display:block}.account-grid small{opacity:.75;margin-top:3px}.notice,.auth-status{color:#657168}.form-row{justify-content:space-between;align-items:center;gap:16px;margin-top:10px;display:flex}.error{color:#a03027;min-height:1.4em;margin:0}button{color:#fff;cursor:pointer;background:#244f3a;border:0;border-radius:999px;min-width:110px;padding:11px 24px;font-weight:750}button:disabled{cursor:not-allowed;opacity:.5}@media (width<=560px){.shell{padding-top:36px}.transcript{padding:16px}.message{max-width:94%}.session-bar{flex-direction:column;align-items:flex-start}.account-grid{grid-template-columns:1fr}.stepper{grid-template-columns:repeat(3,minmax(0,1fr))}.stage-workspace h2{scroll-margin-top:180px}.plan-grid,.prompt-layout,.resource-grid{grid-template-columns:1fr}.run-choice,.privacy-subject{flex-direction:column;align-items:stretch}.privacy-actions{justify-content:flex-start}.plan-grid>div:first-child{grid-column:auto}}.conversation-actions{flex-wrap:wrap;gap:.75rem;display:flex}.earlier-conversation{border:1px solid #bbc8bf;border-radius:.75rem;margin-block:1rem;padding:1rem}.earlier-conversation summary{cursor:pointer;font-weight:600}.section-divider{border-block:1px solid #bbc8bf;padding-block:.75rem}