:root{color:#1f2933;background:#f7f5ef;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{min-height:44px;border:0;border-radius:8px;background:#1d4ed8;color:#fff;padding:0 18px;font-weight:700;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}.shell{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:28px 0 48px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:32px}.brand{font-size:24px;font-weight:800}.subtitle{color:#64748b}.ghost,.link{background:transparent;color:#1d4ed8;border:1px solid #cbd5e1}.link{border:0;padding:0;min-height:auto;justify-self:start}.auth-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:48px;align-items:start}.auth-grid h1,.done h1{margin:0 0 16px;font-size:clamp(28px,4vw,48px);line-height:1.08;letter-spacing:0}.card h1{margin:0 0 20px;font-size:24px;line-height:1.35;letter-spacing:0}.auth-grid p,.done p{color:#475569;font-size:18px;margin:0}.panel,.card{background:#fff;border:1px solid #dedbd3;border-radius:8px;box-shadow:0 18px 45px #0f172a14}.panel{padding:28px}.auth-form{display:grid;gap:18px}label{display:grid;gap:8px;font-weight:700}input[type=email],input[name=pin]{width:100%;min-height:46px;border:1px solid #cbd5e1;border-radius:8px;padding:0 12px;background:#fff}.message{margin:0;color:#475569}.stats{display:grid;grid-template-columns:1.2fr repeat(5,minmax(0,1fr));gap:10px;margin-bottom:18px}.summary,.box-tab{background:#fff;border:1px solid #dedbd3;border-radius:8px;padding:14px;color:#1f2933;text-align:left}.box-tab{min-height:auto}.box-tab.active{border-color:#1d4ed8;box-shadow:inset 0 0 0 2px #1d4ed8}.stats strong{display:block;font-size:24px}.stats span{color:#64748b;font-size:13px}.card{padding:30px}.card-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.card-meta span{border:1px solid #cbd5e1;border-radius:999px;padding:4px 10px;color:#475569;font-size:13px}.choices{display:grid;gap:12px}.choice{grid-template-columns:auto auto minmax(0,1fr);align-items:start;gap:12px;border:1px solid #d8d5cc;border-radius:8px;padding:14px;font-weight:500;background:#fff}.choice input{margin-top:4px}.choice-label{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:6px;background:#f1f5f9;font-weight:800}.choice.correct{border-color:#16a34a;background:#f0fdf4}.choice.wrong{border-color:#dc2626;background:#fef2f2}.match-board{display:grid;grid-template-columns:minmax(180px,.8fr) minmax(0,1.4fr);gap:16px}.match-bank,.match-targets{display:grid;gap:10px;align-content:start}.drag-chip,.drop-slot{min-height:auto;border:1px solid #cbd5e1;background:#f8fafc;color:#1f2933;text-align:left;padding:12px}.drag-chip{cursor:grab}.drag-chip.assigned{opacity:.45}.drag-chip.selected{border-color:#1d4ed8;box-shadow:inset 0 0 0 2px #1d4ed8}.drop-target{display:grid;gap:8px;border:1px solid #d8d5cc;border-radius:8px;padding:12px;background:#fff}.drop-target.correct{border-color:#16a34a;background:#f0fdf4}.drop-target.wrong{border-color:#dc2626;background:#fef2f2}.drop-answer{color:#334155}.drop-slot{width:100%;border-style:dashed;font-weight:700}.correct-hint{color:#166534;font-size:14px;font-weight:700}.result{display:flex;flex-wrap:wrap;gap:12px;border-radius:8px;padding:14px}.result.ok{background:#dcfce7;color:#14532d}.result.bad{background:#fee2e2;color:#7f1d1d}.done{max-width:680px}@media (max-width: 860px){.auth-grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.summary{grid-column:1 / -1}.match-board{grid-template-columns:1fr}}@media (max-width: 540px){.shell{width:min(100% - 20px,1120px);padding-top:18px}.topbar{align-items:flex-start;flex-direction:column}.card,.panel{padding:20px}.card h1{font-size:20px}}