:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:#172033;background:#f4f6f8;font-synthesis:none;--ink:#172033;--muted:#6b7280;--line:#dce1e8;--paper:#fff;--accent:#1967d2;--accent-dark:#1251ad;--soft:#eaf1fb}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#f4f6f8}.topbar{height:64px;padding:0 32px;background:#111827;color:#fff;display:flex;align-items:center;justify-content:space-between}.brand{color:#fff;text-decoration:none;font-weight:700;letter-spacing:0}.top-actions{display:flex;align-items:center;gap:18px}.top-actions a,.text-button{color:#d8dee9;font-size:13px;text-decoration:none}.text-button{background:none;border:0;cursor:pointer}.hidden{display:none!important}main{min-height:calc(100vh - 64px)}.auth-layout{max-width:1080px;margin:0 auto;min-height:calc(100vh - 64px);display:grid;grid-template-columns:1fr 390px;gap:90px;align-items:center;padding:64px 32px}.intro h1{font-size:clamp(40px,6vw,72px);line-height:1.04;letter-spacing:-2px;margin:12px 0 20px;color:#111827}.eyebrow{font-size:11px;letter-spacing:1.8px;color:var(--accent);font-weight:800;margin:0}.intro-copy{color:var(--muted);font-size:17px;margin:0 0 28px}.source-link{color:var(--ink);font-weight:650;text-decoration:none;border-bottom:1px solid #9ba8bb;padding-bottom:5px}.auth-panel{background:var(--paper);border:1px solid var(--line);padding:28px;border-radius:8px;box-shadow:0 12px 32px #1118270b}.tabs{display:flex;gap:22px;border-bottom:1px solid var(--line);margin-bottom:25px}.tab{border:0;background:none;padding:0 0 12px;color:var(--muted);font-size:15px;cursor:pointer}.tab.active{color:var(--ink);font-weight:700;border-bottom:2px solid var(--accent)}.form{display:grid;gap:16px}.form label{font-size:13px;color:#4b5563;display:grid;gap:7px}.form input,.form select,.form textarea,.inline-form input{border:1px solid #cbd3df;background:#fff;border-radius:5px;padding:11px 12px;font:inherit;color:var(--ink);outline:none}.form input:focus,.form select:focus,.form textarea:focus,.inline-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--soft)}.primary,.secondary{border:0;border-radius:5px;padding:11px 16px;font:inherit;font-weight:650;cursor:pointer}.primary{color:#fff;background:var(--accent)}.primary:hover{background:var(--accent-dark)}.secondary{color:var(--ink);background:#e8edf3}.form-message{min-height:18px;color:#b42318;font-size:13px;margin:0}.app-layout{display:grid;grid-template-columns:240px 1fr;min-height:calc(100vh - 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