:root{--bg:#f4f7fb;--card:#ffffff;--text:#152033;--muted:#667085;--line:#e5e9f0;--primary:#5b35d5;--primary-dark:#4326ad;--accent:#12a594;--danger:#b42318;--shadow:0 14px 35px rgba(29,41,57,0.08)}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.page{min-height:100vh;display:grid;place-items:center;padding:28px}.shell{background:radial-gradient(circle at top left,rgba(91,53,213,.12),transparent 32%),radial-gradient(circle at bottom right,rgba(18,165,148,.1),transparent 30%),var(--bg)}.card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.hero{width:min(980px,100%);padding:54px}.brandMark{display:inline-grid;place-items:center;background:linear-gradient(135deg,var(--primary),#7a59e8);color:white;font-weight:800;letter-spacing:.08em;border-radius:14px;padding:12px 16px;margin-bottom:20px}.brandMark.small{padding:8px 10px;border-radius:10px;margin:0 10px 0 0;display:inline-grid}.eyebrow{margin:0 0 8px;font-size:12px;letter-spacing:.14em;font-weight:800;color:var(--primary)}h1{font-size:clamp(34px,5vw,58px);line-height:1.02;margin:0 0 18px}h2{margin:4px 0 20px}.lead,.muted{color:var(--muted)}.lead{font-size:19px;max-width:720px;line-height:1.6}.buttonRow{margin:28px 0}.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;padding:12px 18px;cursor:pointer;font-weight:700}.button.primary{background:var(--primary);color:#fff}.button.primary:hover{background:var(--primary-dark)}.button.ghost{background:#f1effb;color:var(--primary)}.button.disabled{cursor:not-allowed;background:#eef1f5;color:#98a2b3}.button.wide{width:100%}.featureGrid,.moduleGrid,.statsGrid{display:grid;grid-gap:16px;gap:16px}.featureGrid{grid-template-columns:repeat(3,1fr);margin-top:34px}.featureGrid article,.module{padding:22px;border:1px solid var(--line);border-radius:16px;background:#fafbfc}.featureGrid span,.module span,.testRow span{display:block;color:var(--muted);margin-top:8px;line-height:1.45}.authCard{width:min(460px,100%);padding:38px}.authCard h1{font-size:38px}.form{display:grid;grid-gap:18px;gap:18px;margin-top:26px}.form label{display:grid;grid-gap:8px;gap:8px;font-weight:700}.form input{border:1px solid #cfd6df;border-radius:12px;padding:13px 14px;outline:none;background:#fff}.form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(91,53,213,.1)}.notice{border-radius:12px;padding:12px 14px}.notice.error{background:#fff1f0;color:var(--danger);border:1px solid #fecaca}.dashboard{min-height:100vh}.topbar{height:72px;background:#fff;border-bottom:1px solid var(--line);justify-content:space-between;padding:0 28px;position:-webkit-sticky;position:sticky;top:0;z-index:10}.topbar,.topbar>div{display:flex;align-items:center}.dashboardBody{width:min(1180px,calc(100% - 36px));margin:30px auto 60px;display:grid;grid-gap:20px;gap:20px}.welcome{padding:28px}.welcome h1{font-size:34px;margin-bottom:8px}.statsGrid{grid-template-columns:repeat(3,1fr)}.statsGrid.four{grid-template-columns:repeat(4,1fr)}.stat{padding:22px}.stat span{color:var(--muted)}.stat strong{display:block;font-size:30px;margin-top:8px}.dashboardBody>.card,.dashboardBody>section.card{padding:28px}.moduleGrid{grid-template-columns:repeat(3,1fr)}.testList{display:grid}.testRow{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 0;border-top:1px solid var(--line)}.testRow:first-child{border-top:0}.emptyState{border:1px dashed #cfd6df;color:var(--muted);border-radius:14px;padding:28px;text-align:center}@media (max-width:800px){.featureGrid,.moduleGrid,.statsGrid,.statsGrid.four{grid-template-columns:1fr}.hero{padding:34px 24px}.testRow{align-items:flex-start;flex-direction:column}}