:root{color-scheme:light;--bg:#f5f6f8;--card:#fff;--text:#172033;--muted:#667085;--line:#e5e7eb;--accent:#ff7a00;--accent-soft:#fff2e6;--shadow:0 10px 30px rgba(23,32,51,.08)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}button{font:inherit}
body{padding:max(12px,env(safe-area-inset-top)) 14px max(20px,env(safe-area-inset-bottom))}.shell{max-width:760px;margin:0 auto}.topbar{display:flex;align-items:center;justify-content:space-between;padding:6px 2px 18px}
.brand{display:flex;gap:10px;align-items:center}.mark,.workspace-icon{display:grid;place-items:center;background:var(--accent);color:#fff;font-weight:800;border-radius:14px;width:42px;height:42px;box-shadow:0 8px 18px rgba(255,122,0,.22)}
.brand-name{font-size:18px;font-weight:800;line-height:1.05}.brand-sub{font-size:12px;color:var(--muted);margin-top:3px}.platform{font-size:12px;color:var(--muted);padding:6px 9px;border:1px solid var(--line);border-radius:999px;background:#fff}
.hero,.role-card,.grade-card,.workspace{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow)}.hero{margin-bottom:12px;background:linear-gradient(145deg,#fff 60%,#fff5eb)}
.eyebrow{display:inline-flex;padding:6px 9px;border-radius:999px;background:var(--accent-soft);color:#a64f00;font-size:12px;font-weight:700;margin-bottom:12px}h1{font-size:clamp(29px,7vw,48px);line-height:1.03;letter-spacing:-.035em;margin:0 0 14px}h2{font-size:18px;margin:0 0 14px}p{margin:0;color:var(--muted);font-size:15px;line-height:1.55}
.role-card,.grade-card,.workspace{margin-top:12px}.role-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.role{border:1px solid var(--line);border-radius:18px;background:#fff;text-align:left;padding:16px;min-height:96px;cursor:pointer}.role strong{display:block;font-size:16px;margin-bottom:5px}.role span{font-size:13px;line-height:1.35;color:var(--muted)}.role.active{border-color:var(--accent);background:var(--accent-soft)}
.section-head{display:flex;align-items:center;justify-content:space-between}.section-head span{font-size:13px;font-weight:700;color:var(--accent)}.grades{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:6px 0 16px}.grades button{height:46px;border:1px solid var(--line);border-radius:14px;background:#fff;font-weight:750;cursor:pointer}.grades button.active{background:var(--text);color:#fff;border-color:var(--text)}
.primary,.secondary{width:100%;border:0;border-radius:16px;min-height:50px;font-weight:800;cursor:pointer}.primary{background:var(--accent);color:#fff}.secondary{margin-top:18px;background:#f2f4f7;color:var(--text)}.workspace{text-align:center;padding:28px 22px}.workspace-icon{margin:0 auto 14px;width:54px;height:54px;border-radius:18px}.workspace h2{font-size:22px}.hidden{display:none}footer{display:flex;justify-content:center;gap:8px;color:#98a2b3;font-size:12px;padding:22px 4px 4px}@media(max-width:520px){.role-grid{grid-template-columns:1fr}.hero,.role-card,.grade-card,.workspace{border-radius:20px;padding:18px}.brand-sub{display:none}}