:root{color-scheme:dark;--ink:#edf2f4;--muted:#a5b2b9;--line:#28404b;--surface:#102129;--accent:#60d5b6;--warning:#f9b850}.button-row{display:flex;flex-wrap:wrap;gap:8px}*{box-sizing:border-box}body{margin:0;background:#071217;color:var(--ink);font-family:Arial,Helvetica,sans-serif}main{max-width:1100px;margin:auto;padding:42px 24px 72px}.hero{max-width:780px;margin-bottom:26px}h1{font-size:clamp(2.2rem,5vw,4.4rem);letter-spacing:-.05em;margin:.15em 0}li,p{color:var(--muted);line-height:1.5}.eyebrow{color:var(--accent);letter-spacing:.14em;font-size:.75rem;font-weight:700}.guardrail,.notice{border-left:3px solid var(--accent);padding:12px 15px;background:rgba(96,213,182,.08)}.workspace{display:grid;grid-template-columns:270px minmax(0,1fr);gap:20px}article,aside{border:1px solid var(--line);border-radius:16px;background:var(--surface);padding:18px}.card{margin-bottom:15px}button{background:var(--accent);color:#062019;border:0;border-radius:8px;padding:10px 12px;font-weight:700;cursor:pointer;margin:.2rem 0}.secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}@media(max-width:760px){main{padding:25px 15px}.workspace{grid-template-columns:1fr}}.auth-grid{grid-template-columns:repeat(2,minmax(0,1fr))}form{gap:10px;margin:14px 0}form,label{display:grid}label{gap:5px;color:var(--muted);font-size:.9rem}input{background:#071217;border:1px solid var(--line);border-radius:8px;color:var(--ink);padding:10px}button:disabled{cursor:not-allowed;opacity:.55}a{color:var(--accent)}@media(max-width:760px){.auth-grid{grid-template-columns:1fr}}