:root{color-scheme:light;--bg: #f6f7fb;--surface: #ffffff;--surface-2: #eef2f7;--text: #172033;--muted: #667085;--line: #d9e0ea;--primary: #2563eb;--primary-text: #ffffff;--danger: #b42318;--success: #067647;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,select{font:inherit}button{min-height:40px;border:1px solid var(--primary);border-radius:6px;padding:9px 14px;background:var(--primary);color:var(--primary-text);font-weight:700;cursor:pointer}button:disabled{border-color:var(--line);background:var(--surface-2);color:var(--muted);cursor:not-allowed}.app-shell{min-height:100vh;padding:24px}.admin-auth-screen{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-panel,.panel{border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:18px}.auth-panel{width:min(420px,100%);display:grid;gap:14px}.admin-shell{width:min(1180px,100%);margin:0 auto;padding:20px}.admin-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.admin-grid{display:grid;grid-template-columns:minmax(280px,420px) 1fr;gap:16px;margin-bottom:16px}.admin-form,.token-form{display:grid;gap:12px;margin-bottom:16px}.admin-form label,.token-form label,.auth-panel label{display:grid;gap:6px;color:var(--muted);font-size:14px}.admin-form input,.admin-form select,.token-form input,.auth-panel input{width:100%;min-height:44px;border:1px solid var(--line);border-radius:6px;padding:8px 10px;background:var(--surface);color:var(--text)}.eyebrow{margin:0;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase}.panel{overflow-x:auto;margin-bottom:16px}.panel h2,.auth-panel h1,.admin-header h1{margin-top:0}table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}th{color:var(--muted);font-size:13px}.admin-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.report-detail pre{max-height:320px;overflow:auto;border:1px solid var(--line);border-radius:6px;padding:12px;background:var(--surface-2)}.token-screen{display:grid;min-height:100vh;place-items:center}.token-form{width:min(440px,100%)}.form-message{margin:0;color:var(--danger)}.token-output{margin:12px 0 0;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:20px;word-break:break-all}.test-screen{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto;padding:16px}.progress-bar{position:fixed;top:0;left:0;width:100%;height:4px;transform-origin:left;background:var(--primary)}.quiz-status{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;font-size:14px}.quiz-status span{min-width:0;min-height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:8px;background:var(--surface);text-align:center;overflow-wrap:anywhere}.test-column{align-self:center;justify-self:center;width:min(180px,56vw);display:grid;grid-template-rows:repeat(5,56px);place-items:center;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,monospace;font-size:34px;font-weight:700}.test-number{width:100%;height:48px;display:grid;place-items:center;color:var(--muted)}.test-number.is-active{color:var(--text);border:2px solid var(--primary);border-radius:8px;background:var(--surface)}.answer-input{justify-self:center;width:96px;height:56px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text);text-align:center;font-size:28px}@media(max-width:820px){.admin-grid,.admin-header{grid-template-columns:1fr;display:grid}.quiz-status{grid-template-columns:repeat(2,minmax(0,1fr))}}@media print{.admin-actions,.admin-header button,.admin-form,.auth-panel{display:none}.panel{overflow:visible}table{table-layout:fixed}th,td{white-space:normal;word-break:break-word}}