:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f6f5f1;--surface:#fff;--surface-muted:#f0efea;--surface-raised:#fffdf8;--border:#d8d4ca;--border-strong:#bbb3a4;--text:#24211d;--muted:#686158;--accent:#2f6653;--accent-strong:#244f40;--accent-soft:#dce9e3;--ink:#27384f;--ink-soft:#dfe8f2;--gold:#b77a22;--warn-soft:#f4e3cf;--shadow:0 18px 45px #24211d17;--shadow-tight:0 8px 24px #24211d14}*{box-sizing:border-box}html{background:var(--bg);min-height:100%}body{min-height:100vh;color:var(--text);background:linear-gradient(180deg, #ffffff9e, #fff0 240px), var(--bg);margin:0;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}:focus-visible{outline-offset:3px;outline:3px solid #2f665361}.home-page,.auth-page,.student-page{place-items:center;min-height:100vh;padding:24px;display:grid}.entry-panel,.auth-panel,.student-landing,.panel{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow)}.entry-panel{width:min(100%,460px)}.student-page{background:radial-gradient(circle at 50% 12%, #dce9e3a3, transparent 300px), var(--bg)}.code-entry,.auth-panel{gap:24px;padding:clamp(24px,6vw,40px);display:grid}.code-entry{text-align:center}.code-entry h1{margin-bottom:0}.code-entry .button{min-height:58px;font-size:1.2rem}.secondary-action{border-top:1px solid var(--border);color:var(--muted);justify-content:space-between;gap:16px;padding:16px clamp(24px,6vw,40px);font-size:.92rem;display:flex}.secondary-action a,.student-link{color:var(--accent-strong);font-weight:650}.eyebrow{color:var(--accent-strong);letter-spacing:.08em;text-transform:uppercase;margin:0 0 8px;font-size:.76rem;font-weight:750}h1,h2,p{margin-top:0}h1{margin-bottom:10px;font-size:clamp(2rem,7vw,3.25rem);line-height:.98}h2{margin-bottom:16px;font-size:1rem}.muted,.field-hint{color:var(--muted)}.muted{margin-bottom:0;line-height:1.55}.field-stack{gap:8px;display:grid}label{font-size:.92rem;font-weight:700}input,select,textarea{border:1px solid var(--border);width:100%;color:var(--text);letter-spacing:.1em;background:#fff;border-radius:6px;padding:15px 16px;font-size:1.28rem;font-weight:750}select,textarea,input[type=text],input[type=email],input[type=password]{letter-spacing:0}textarea{resize:vertical;min-height:96px;font-size:1rem;font-weight:600;line-height:1.45}.code-entry input[name=code]{text-transform:uppercase}input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 4px #2f665321}.field-hint{margin:0;font-size:.86rem}.form-error{color:#8d3b22;background:#fff4ef;border:1px solid #d18c72;border-radius:6px;margin:0;padding:10px 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12px;font-size:1rem;font-weight:850}.activity-placeholder{border:1px dashed var(--border);text-align:center;background:#fbfaf7;border-radius:8px;padding:28px}.activity-placeholder div{gap:5px;display:grid}.activity-placeholder span{color:var(--muted);line-height:1.45}.assigned-activities{grid-template-columns:repeat(auto-fit,minmax(160px,220px));justify-content:center;gap:16px;display:grid}.assigned-activity{aspect-ratio:1;border:1px solid var(--border);width:100%;max-width:220px;color:var(--text);cursor:pointer;text-align:center;background:#fbfaf7;border-radius:8px;grid-template-rows:minmax(0,1fr) auto;place-items:center;gap:10px;padding:14px;transition:border-color .14s,box-shadow .14s,transform .14s;display:grid;overflow:hidden}.assigned-activity:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 16px 34px #2f665324}.assigned-activity:active{transform:translateY(0)}.assigned-activity h2{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0;font-size:clamp(.96rem,3vw,1.12rem);line-height:1.12;display:-webkit-box;overflow:hidden}.assigned-activity p{color:var(--muted);margin-bottom:8px;line-height:1.45}.activity-access-text{color:var(--accent-strong);font-size:.84rem;font-weight:750}.activity-icon{flex:none;place-items:center;width:44px;height:44px;font-size:1.55rem;line-height:1;display:inline-grid}.activity-icon-large{width:62px;height:62px;font-size:2.2rem}.student-page .activity-icon-large{aspect-ratio:1;width:min(84%,150px);height:auto;font-size:clamp(4.4rem,22vw,5.8rem)}.student-small-link{color:var(--muted);justify-self:center;font-size:.9rem;font-weight:700}.app-shell{background:radial-gradient(circle at 88% 8%,#2f66531a,#0000 260px),linear-gradient(135deg,#f7f5ef 0%,#f3f0e7 42%,#eef3f1 100%);grid-template-columns:252px minmax(0,1fr);height:100vh;display:grid;overflow:hidden}.sidebar{background:linear-gradient(#ffffffc7,#ffffff6b),#f4f1e8;border-right:1px solid #24211d1c;flex-direction:column;gap:24px;height:100vh;min-height:0;padding:24px 18px;display:flex;overflow-y:auto;box-shadow:12px 0 32px #24211d0d}.brand{border-bottom:1px solid #24211d1a;align-items:center;gap:10px;padding:0 4px 18px;font-weight:800;display:flex}.brand-mark{background:linear-gradient(135deg, var(--accent), var(--ink));color:#fff;border-radius:6px;place-items:center;width:38px;height:38px;display:grid;box-shadow:0 10px 20px #2f665338}.workspace-nav{gap:6px;display:grid}.workspace-nav a{color:var(--muted);border-radius:6px;padding:11px 12px;font-weight:700;transition:background .14s,color .14s,transform .14s}.workspace-nav a:hover,.workspace-nav a[aria-current=page]{background:var(--accent-soft);color:var(--accent-strong)}.workspace-nav a[aria-current=page]{box-shadow:inset 3px 0 0 var(--accent)}.workspace-nav a:hover{transform:translate(2px)}.student-link{margin-top:auto;font-size:.92rem}.sidebar-button{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--muted);cursor:pointer;text-align:left;border-radius:6px;padding:10px 12px;font-weight:700}.sidebar-button:hover{border-color:var(--accent);color:var(--accent-strong)}.workspace-frame{background:linear-gradient(#ffffff8a,#fff0 260px),0 0;min-width:0;height:100vh;overflow-y:auto}.workspace{gap:24px;padding:clamp(22px,4vw,42px);display:grid}.panel-header{justify-content:space-between;align-items:center;gap:16px;display:flex}.workspace-header{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.workspace-grid{gap:18px;display:grid}.students-grid,.activities-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.roster-panel,.library-panel{grid-area:span 2/span 2}.panel{background:linear-gradient(180deg, #fffffff5, #ffffffdb), var(--surface);min-width:0;box-shadow:var(--shadow-tight);border-color:#24211d1a;border-radius:10px;padding:20px}.panel h2{color:var(--ink);letter-spacing:0;font-size:.98rem}.count{background:var(--ink-soft);min-width:28px;min-height:28px;color:var(--ink);border-radius:999px;justify-content:center;align-items:center;font-size:.84rem;font-weight:800;display:inline-flex}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.92rem}th,td{border-top:1px solid var(--border);text-align:left;white-space:nowrap;padding:13px 10px}thead th{color:var(--muted);text-transform:uppercase;font-size:.78rem}tbody th{font-weight:750}.status,.chip{background:var(--surface-muted);border-radius:999px;padding:5px 9px;font-size:.82rem;font-weight:700;display:inline-flex}.chip-list,.stack-list,.library-list{gap:10px;display:grid}.agent-create-accordion{border-top:1px solid var(--border);margin-top:18px;padding-top:14px}.agent-create-accordion summary{cursor:pointer;background:#fbfaf7;border:1px solid #24211d1a;border-radius:8px;justify-content:space-between;align-items:center;gap:16px;padding:14px 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var(--border);width:100%;color:var(--text);cursor:pointer;text-align:left;background:#fffefa;border-color:#24211d1a;border-radius:8px;justify-content:space-between;align-items:center;gap:16px;padding:15px;display:flex}.row-button:hover{border-color:var(--accent);background:#f9fcfa;box-shadow:0 8px 18px #2f665314}.row-button[aria-pressed=true]{border-color:var(--accent);background:linear-gradient(90deg, #dce9e3d6, #ffffffb8), var(--accent-soft)}.row-button-main{gap:4px;min-width:0;display:grid}.row-button .status{flex:none}.row-subtext{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.84rem;font-weight:600;overflow:hidden}.activity-form-panel{border-color:#2f665333;grid-column:span 2}.activity-form,.stage-editor,.stage-draft{gap:14px;display:grid}.activity-form{margin-top:8px}.form-grid-two{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.stage-editor{border-top:1px solid var(--border);padding-top:14px}.stage-editor h3{margin:0;font-size:.92rem}.stage-draft{border:1px solid var(--border);background:#fbfaf7;border-radius:8px;padding:14px}.cli-steps{gap:18px;display:grid}.segmented-control{background:#ebe8df;border:1px solid #24211d1a;border-radius:8px;align-items:center;width:fit-content;padding:3px;display:inline-flex}.segment-button{color:var(--muted);cursor:pointer;font:inherit;background:0 0;border:0;border-radius:6px;padding:7px 10px;font-size:.86rem;font-weight:750}.segment-button[aria-pressed=true]{background:var(--surface);color:var(--text);box-shadow:0 4px 12px #14120f17}.command-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.command-card{cursor:pointer;position:relative}.command-card:focus-visible{outline-offset:3px;border-radius:8px;outline:3px solid #30694b42}.copy-command-button{color:#fffaf0;cursor:pointer;z-index:1;background:#fffaf01a;border:1px solid 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var(--border);flex-direction:row;align-items:center;height:auto;min-height:0;padding:12px 16px;position:sticky;top:0;overflow:auto visible}.workspace-frame{height:auto;overflow:visible}.workspace-nav{display:flex;overflow-x:auto}.student-link{margin-top:0;margin-left:auto}.sidebar-button{width:auto}.students-grid,.activities-grid{grid-template-columns:1fr}.roster-panel,.library-panel,.activity-form-panel{grid-column:auto}.student-dashboard-grid,.settings-grid{grid-template-columns:1fr}.student-list-panel{position:static}.form-grid-two{grid-template-columns:1fr}}@media (max-width:560px){.secondary-action,.workspace-header{flex-direction:column;align-items:stretch}.brand 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