:root{--bg: #f4f6fb;--bg-card: #ffffff;--text: #0f172a;--muted: #64748b;--border: #e2e8f0;--primary: #0ea5e9;--primary-dark: #0284c7;--accent: #6366f1;--success: #10b981;--danger: #ef4444;--radius: 12px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 8px 24px rgba(15, 23, 42, .06);--font: "DM Sans", system-ui, sans-serif;--mono: "JetBrains Mono", ui-monospace, monospace}*,*:before,*:after{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:var(--font);color:var(--text);background:radial-gradient(1200px 600px at 10% -10%,#e0f2fe 0%,transparent 55%),radial-gradient(900px 500px at 100% 0%,#eef2ff 0%,transparent 50%),var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--primary-dark);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit}h1,h2,h3{margin:0 0 .5rem;font-weight:600;letter-spacing:-.02em}.page{max-width:1100px;margin:0 auto;padding:2rem 1.25rem 4rem}main{margin:0;padding:0}.admin-root{flex:1;display:flex;min-height:0;overflow:hidden;width:100%;background:var(--bg-card)}.admin-sidebar{width:228px;flex-shrink:0;background:var(--bg-card);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;box-shadow:2px 0 12px #0f172a0a}.admin-sidebar-brand{padding:1rem 1rem .75rem;font-weight:700;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.admin-nav{display:flex;flex-direction:column;gap:.15rem;padding:0 .65rem 1rem}.admin-nav-link{display:block;padding:.5rem .65rem;border-radius:8px;color:var(--muted);font-weight:500;font-size:.92rem;text-decoration:none}.admin-nav-link:hover{background:#f1f5f9;color:var(--text);text-decoration:none}.admin-nav-link--active{background:#0ea5e91f;color:var(--primary-dark);font-weight:600}.admin-stage{flex:1;min-width:0;min-height:0;display:flex;flex-direction:column;background:var(--bg-card)}.admin-panel{flex:1;display:flex;flex-direction:column;min-height:0;padding:0 1.25rem .5rem;max-width:1400px;width:100%;margin:0 auto}.admin-panel-header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:.65rem 0;border-bottom:1px solid var(--border);background:var(--bg-card)}.admin-panel-filters{flex-shrink:0;padding:.75rem 0;border-bottom:1px solid var(--border);background:var(--bg-card)}.admin-panel-body{flex:1;min-height:0;overflow:auto;padding:1rem 0 1.5rem;-webkit-overflow-scrolling:touch}.admin-filter-grid{display:grid;gap:.65rem 1rem;align-items:end}@media(min-width:720px){.admin-filter-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.1rem;border-radius:10px;border:1px solid transparent;font-weight:600;font-size:.95rem;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;box-shadow:0 4px 14px #0ea5e959}.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 18px #0ea5e973}.btn-ghost{background:#fff;border-color:var(--border);color:var(--text)}.btn-ghost:hover:not(:disabled){border-color:#cbd5e1;background:#f8fafc}.btn-danger{background:#fef2f2;color:#b91c1c;border-color:#fecaca}.input,select,textarea{width:100%;padding:.6rem .75rem;border-radius:10px;border:1px solid var(--border);font-size:1rem;font-family:inherit;background:#fff}.input:focus,select:focus,textarea:focus{outline:2px solid rgba(14,165,233,.35);border-color:var(--primary)}.label{display:block;font-size:.85rem;font-weight:600;color:var(--muted);margin-bottom:.35rem}.grid-2{display:grid;gap:1rem}@media(min-width:720px){.grid-2{grid-template-columns:1fr 1fr}}.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius)}table.data{width:100%;border-collapse:collapse;font-size:.9rem}table.data th,table.data td{padding:.65rem .85rem;text-align:left;border-bottom:1px solid var(--border)}table.data th{background:#f8fafc;font-weight:600;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.badge{display:inline-block;padding:.15rem .5rem;border-radius:999px;font-size:.75rem;font-weight:600;background:#f1f5f9;color:var(--muted)}.empty{text-align:center;padding:2rem;color:var(--muted)}.skeleton{animation:pulse 1.2s ease-in-out infinite;background:linear-gradient(90deg,#f1f5f9,#e2e8f0,#f1f5f9);background-size:200% 100%;border-radius:8px}@keyframes pulse{0%{background-position:0% 0%}to{background-position:-200% 0%}}@media(min-width:880px){.test-session-layout{grid-template-columns:minmax(0,1fr) minmax(240px,300px)}}.qnp-wrap{margin-top:0}.qnp-title{font-size:.85rem;font-weight:600;color:var(--muted);margin:0 0 .5rem}.qnp-grid{display:flex;flex-wrap:wrap;gap:.5rem}.qnp-cell{position:relative;width:2.5rem;height:2.5rem;min-width:2.5rem;border:none;padding:0;font-size:.85rem;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease}.qnp-cell:disabled{cursor:not-allowed}.qnp-cell--locked{background:linear-gradient(180deg,#eef1f5,#dce3ec);color:#334155;border:1px solid #94a3b8;border-radius:8px;box-shadow:inset 0 1px #ffffffa6;opacity:.92}.qnp-cell--locked:disabled{opacity:.65}.qnp-cell--visitedUnanswered{background:linear-gradient(180deg,#fb923c,#ea580c);color:#fff;clip-path:polygon(0 0,100% 0,100% 72%,86% 100%,14% 100%,0 72%)}.qnp-cell--answered{background:linear-gradient(180deg,#4ade80,#22c55e);color:#fff;clip-path:polygon(14% 0,86% 0,100% 28%,100% 100%,0 100%,0 28%)}.qnp-cell--markedUnanswered,.qnp-cell--answeredMarked{background:linear-gradient(180deg,#a855f7,#7c3aed);color:#fff;border-radius:50%}.qnp-cell__badge{position:absolute;bottom:2px;right:2px;width:.65rem;height:.65rem;border-radius:50%;background:#22c55e;border:1px solid #fff;box-shadow:0 0 0 1px #0000001f;pointer-events:none}.qnp-cell__badge:after{content:"";position:absolute;left:50%;top:50%;width:4px;height:2px;border-left:1.5px solid #fff;border-bottom:1.5px solid #fff;transform:translate(-50%,-60%) rotate(-45deg)}.qnp-cell--current:not(:disabled){outline:2px solid var(--primary);outline-offset:2px;z-index:1}.qnp-cell--loading{opacity:.55}.qnp-legend{display:grid;gap:.4rem;margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border);font-size:.72rem;color:var(--muted);line-height:1.35}.qnp-legend__row{display:flex;align-items:center;gap:.5rem}.qnp-legend__sample{display:inline-flex;align-items:center;justify-content:center}.qnp-legend__mini{width:1.35rem!important;height:1.35rem!important;min-width:1.35rem!important;font-size:.58rem!important;flex-shrink:0}.qnp-legend__answered-marked-wrap{display:inline-flex;width:1.35rem;height:1.35rem;align-items:center;justify-content:center;flex-shrink:0}