:root{font-family:Inter,Segoe UI,Roboto,system-ui,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--bg: #f4f6fb;--accent-1: #e0e7ff;--accent-2: #fef3c7;--text: #0f172a;--muted-text: #475569;--eyebrow: #7c8797;--card-bg: #ffffff;--card-border: rgba(15, 23, 42, .06);--card-shadow: 0 25px 60px rgba(15, 23, 42, .08);--sheet-shadow: -20px 0 60px rgba(15, 23, 42, .2);--input-bg: #f8fafc;--input-border: #d4dae4;--hint-text: #64748b;--button-bg: #e2e8f0;--button-text: #0f172a;--button-shadow: 0 10px 20px rgba(15, 23, 42, .1);--ghost-border: rgba(15, 23, 42, .1);--danger-bg: #fee2e2;--danger-hover-bg: #fecaca;--danger-text: #b91c1c;--danger-hover-text: #991b1b;--primary-from: #2563eb;--primary-to: #7c3aed;--accent-text: #6366f1;--stats-label: #94a3b8;--empty-text: #94a3b8;--list-bg: #f8fafc;--list-border: rgba(15, 23, 42, .05);--overlay: rgba(15, 23, 42, .35);--sheet-border: rgba(15, 23, 42, .1)}:root[data-theme=dark]{color-scheme:dark;--bg: #0f172a;--accent-1: #312e81;--accent-2: #5b21b6;--text: #f8fafc;--muted-text: #cbd5f5;--eyebrow: #94a3b8;--card-bg: #1e293b;--card-border: rgba(148, 163, 184, .2);--card-shadow: 0 25px 60px rgba(2, 6, 23, .8);--sheet-shadow: -20px 0 60px rgba(2, 6, 23, .85);--input-bg: #0b1526;--input-border: #334155;--hint-text: #cbd5f5;--button-bg: #1f2937;--button-text: #f8fafc;--button-shadow: 0 10px 25px rgba(2, 6, 23, .9);--ghost-border: rgba(148, 163, 184, .4);--danger-bg: rgba(239, 68, 68, .2);--danger-hover-bg: rgba(239, 68, 68, .3);--danger-text: #fecaca;--danger-hover-text: #fee2e2;--primary-from: #4f46e5;--primary-to: #7c3aed;--accent-text: #a5b4fc;--stats-label: #cbd5f5;--empty-text: #a5b4fc;--list-bg: #0b1526;--list-border: rgba(148, 163, 184, .25);--overlay: rgba(2, 6, 23, .7);--sheet-border: rgba(148, 163, 184, .2)}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,var(--accent-1),transparent 40%),radial-gradient(circle at 20% 20%,var(--accent-2),transparent 35%),var(--bg);color:var(--text);transition:background .28s ease,color .28s ease}#root{min-height:100vh}.app{width:min(1000px,100%);margin:0 auto;padding:clamp(1rem,4vw,3rem);display:flex;flex-direction:column;gap:clamp(1.5rem,3vw,3rem);color:var(--text)}.app.setup-mode{max-width:720px;min-height:100vh;justify-content:center}.panel,.results>*{background-color:var(--card-bg);border-radius:1.25rem;padding:clamp(1.5rem,2vw,2.5rem);box-shadow:var(--card-shadow);border:1px solid var(--card-border);color:inherit}.sheet-trigger{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;padding:1rem 1.25rem;background:var(--card-bg);border-radius:1rem;border:1px solid var(--card-border);box-shadow:var(--card-shadow)}.sheet-actions{display:flex;gap:.75rem;flex-wrap:wrap;justify-content:flex-end}.toggle-hint{margin:.3rem 0 0;font-size:.9rem;color:var(--hint-text)}.sheet{position:fixed;inset:0;pointer-events:none;z-index:20}.sheet.open{pointer-events:auto}.sheet-overlay{position:absolute;inset:0;background:var(--overlay);opacity:0;transition:opacity .22s ease}.sheet.open .sheet-overlay{opacity:1}.sheet-panel{position:absolute;top:0;right:0;height:100%;width:min(420px,90vw);border-radius:0;border-left:1px solid var(--sheet-border);box-shadow:var(--sheet-shadow);transform:translate(100%);transition:transform .3s ease;overflow-y:auto}.sheet.open .sheet-panel{transform:translate(0)}.confirm-overlay{position:fixed;inset:0;background:var(--overlay);display:flex;align-items:center;justify-content:center;z-index:30;padding:1.5rem}.confirm-modal{width:min(420px,100%);border-radius:1rem;background:var(--card-bg);border:1px solid var(--card-border);box-shadow:var(--card-shadow);padding:clamp(1.5rem,3vw,2rem)}.confirm-modal__content h3{margin:0 0 .5rem;font-size:1.35rem}.confirm-modal__content p{margin:0;color:var(--muted-text)}.confirm-modal__actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}.sheet-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.close-sheet{padding-inline:1rem}h1{font-size:clamp(2rem,4vw,2.75rem);margin:.35rem 0 .5rem}.lead{margin:0;color:var(--muted-text)}.eyebrow{text-transform:uppercase;font-size:.75rem;letter-spacing:.15em;color:var(--eyebrow);margin:0}.input-label{display:block;font-weight:600;margin-bottom:.5rem}.student-input{width:100%;border-radius:.85rem;border:1.5px solid var(--input-border);font-size:1rem;padding:.85rem 1rem;resize:vertical;font-family:inherit;color:var(--text);background-color:var(--input-bg)}.student-input:focus{outline:3px solid rgba(37,99,235,.3);border-color:var(--primary-from)}.input-hint{font-size:.9rem;color:var(--hint-text);margin-top:.35rem}.button-row{display:flex;flex-wrap:wrap;gap:.75rem;margin:1.5rem 0}.initial-setup-card{width:100%;display:flex;flex-direction:column;gap:1.25rem}.setup-description{margin:0;color:var(--muted-text)}.setup-header{display:flex;justify-content:flex-end}.question-control,.coverage-toggle{margin:1rem 0}.options-section{margin-top:2.5rem;padding-top:2.5rem;border-top:1.5px solid var(--card-border)}.options-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.options-panel{max-height:0;overflow:hidden;opacity:0;pointer-events:none;transition:max-height .26s ease,opacity .22s ease;display:grid}.options-panel.open{max-height:1500px;opacity:1;pointer-events:auto}.coverage-toggle label{display:flex;align-items:center;gap:.5rem;font-weight:600;cursor:pointer}.coverage-toggle input[type=checkbox]{width:1.2rem;height:1.2rem;accent-color:var(--primary-from)}.number-input{width:100%;border-radius:.85rem;border:1.5px solid var(--input-border);font-size:1rem;padding:.85rem 1rem;font-family:inherit;color:var(--text);background-color:var(--input-bg)}.number-input:focus{outline:3px solid rgba(37,99,235,.3);border-color:var(--primary-from)}.bias-control{margin-bottom:1.5rem}.bias-control label{display:flex;justify-content:space-between;font-weight:600;margin-bottom:.35rem;color:var(--text)}.bias-control label span{font-weight:500;color:var(--accent-text)}.bias-control input[type=range]{width:100%;accent-color:var(--primary-from)}button{border-radius:999px;border:none;padding:.85rem 1.65rem;font-size:1rem;font-weight:600;font-family:inherit;cursor:pointer;transition:background .18s ease,transform .18s ease,box-shadow .18s ease,color .18s ease;background:var(--button-bg);color:var(--button-text);box-shadow:var(--button-shadow);white-space:nowrap}.toggle-editor{background:transparent;border:1.5px solid var(--ghost-border);box-shadow:none;padding-inline:1.35rem;color:var(--text)}.theme-toggle{padding-inline:1rem}button:hover:not(:disabled){transform:translateY(-1px)}button:disabled{cursor:not-allowed;opacity:.65;box-shadow:none}.ghost{background:transparent;border:1.5px solid var(--ghost-border);box-shadow:none;color:var(--text)}.danger{background:var(--danger-bg);color:var(--danger-text)}.danger:hover:not(:disabled){background:var(--danger-hover-bg);color:var(--danger-hover-text)}.primary{background:linear-gradient(120deg,var(--primary-from),var(--primary-to));color:#fff;border:none}.wide{width:100%;justify-content:center;text-align:center;display:inline-flex;align-items:center;gap:.5rem}.results{display:grid;gap:1.25rem}.action-card{display:flex;flex-direction:row;gap:.75rem}.results h2{margin-top:0}.current-student{text-align:center}.current-name{font-size:clamp(2rem,5vw,3rem);margin:.75rem 0 1.25rem;color:var(--text);font-weight:700}.stats{display:flex;justify-content:center;gap:2rem;font-size:.95rem;color:var(--muted-text)}.stats strong{display:block;font-size:1.75rem;color:var(--text)}.stat-label{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--stats-label)}.toggle-status{margin-top:1rem;font-size:.95rem;color:var(--hint-text)}.toggle-status strong{color:var(--text)}.history,.remaining{max-height:320px;overflow:auto}ol,ul{list-style:none;padding-left:0;margin:0;display:grid;gap:.35rem}ol li,ul li{background:var(--list-bg);padding:.65rem .9rem;border-radius:.75rem;border:1px solid var(--list-border)}.history-item{position:relative;padding-left:2.75rem}.history-number{position:absolute;left:.9rem;top:50%;transform:translateY(-50%);background:var(--primary-from);color:#fff;font-weight:600;width:1.6rem;height:1.6rem;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:.85rem}.empty{margin:0;color:var(--empty-text)}