:root{--accent:#2563A8;--accent-dark:#1D4F86;--ink:#16202E;--text:#1B2533;--muted:#5B6573;--line:#E3E8EF;--paper:#F5F8FC;--soft:#EEF4FB;--err:#B42318;--err-soft:#FDECEA;--ok:#1E7F4B;--ok-soft:#E3F3EA;--surface:#fff}
@media (prefers-color-scheme:dark){:root{--accent:#7FB0E8;--accent-dark:#A9CBF2;--ink:#EEF2F7;--text:#DDE3EA;--muted:#9AA6B4;--line:#2A3442;--paper:#121820;--soft:#16202B;--err:#F59A92;--err-soft:#3A1C1A;--ok:#74D39E;--ok-soft:#173424;--surface:#0E141B}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--surface);color:var(--text);font:16px/1.55 Figtree,system-ui,-apple-system,Segoe UI,sans-serif}
a{color:var(--accent)}
.auth{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr)}
.side{background:var(--soft);padding:40px 48px;display:flex;flex-direction:column;gap:28px;justify-content:center}
.brand{display:flex;align-items:center;gap:10px;font:600 22px Fraunces,Georgia,serif;color:var(--ink)}
.brand img{border-radius:8px}
.side h2{font:600 clamp(28px,3.4vw,44px)/1.12 Fraunces,Georgia,serif;color:var(--ink);margin:0;max-width:560px}
.hero{width:100%;max-width:620px;height:auto;border-radius:18px}
.panel{display:flex;align-items:center;justify-content:center;padding:40px 24px}
.box{width:100%;max-width:420px}
h1{font:600 32px/1.15 Fraunces,Georgia,serif;color:var(--ink);margin:0 0 8px}
.lead{color:var(--muted);margin:0 0 24px}
form{display:flex;flex-direction:column;gap:16px}
label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:15px;color:var(--ink)}
.hint{font-weight:400;color:var(--muted);font-size:14px}
input{font:inherit;font-weight:400;color:var(--text);background:var(--surface);border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;min-height:48px;width:100%}
input:focus{outline:3px solid color-mix(in srgb,var(--accent) 35%,transparent);border-color:var(--accent)}
input[aria-invalid=true]{border-color:var(--err)}
.code{letter-spacing:.35em;font-size:22px;max-width:220px}
.check{flex-direction:row;align-items:center;font-weight:400;gap:10px}
.check input{width:20px;height:20px;min-height:0}
.pw{display:flex;gap:8px}
.show,.link{font:600 14px Figtree,sans-serif;background:none;border:0;color:var(--accent);cursor:pointer;padding:0 6px}
.link{padding:0;text-decoration:underline}
.btn{font:600 17px Figtree,sans-serif;background:var(--accent);color:#fff;border:0;border-radius:10px;min-height:52px;cursor:pointer}
@media (prefers-color-scheme:dark){.btn{color:#0E141B}}
.btn:hover{background:var(--accent-dark)}
.btn[disabled]{opacity:.6;cursor:wait}
.msg{margin:0;padding:12px 14px;border-radius:10px;background:var(--err-soft);color:var(--err);font-size:15px}
.msg.ok{background:var(--ok-soft);color:var(--ok)}
.fieldmsg{margin:-10px 0 0;font-size:14px;min-height:0}
.fieldmsg.bad{color:var(--err)}.fieldmsg.good{color:var(--ok)}
.alt{margin:18px 0 0;color:var(--muted);font-size:15px}
@media (max-width:860px){.auth{grid-template-columns:minmax(0,1fr)}.side{padding:24px 16px;gap:16px}.side h2{font-size:24px}.hero{display:none}.panel{padding:24px 16px 40px;align-items:flex-start}}