:root{--bg:#f2f5f9;--card:#fff;--accent:#2f6fed;--accent-h:#245cd0;--text:#1c2430;
      --muted:#68738a;--border:#d8dfea;--err:#d64545;--err-bg:#fdecec}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
     background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}
.wrap{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;
      box-shadow:0 8px 24px rgba(28,36,48,.08);width:100%;max-width:380px;padding:32px 28px}
.logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:8px}
.logo svg{width:34px;height:34px}
.logo b{font-size:19px}
.sub{text-align:center;color:var(--muted);font-size:13px;margin-bottom:24px}
label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}
input[type=text],input[type=password]{width:100%;padding:10px 12px;font-size:14px;
      border:1px solid var(--border);border-radius:8px;outline:none;background:#fbfcfe}
input:focus{border-color:var(--accent)}
.row{display:flex;justify-content:space-between;align-items:center;margin-top:14px;font-size:13px}
.row label{margin:0;display:flex;gap:6px;align-items:center;color:var(--text);cursor:pointer}
.row a{color:var(--accent);text-decoration:none}
.row a:hover{text-decoration:underline}
button{width:100%;margin-top:20px;padding:11px 0;font-size:15px;border:0;border-radius:8px;
       background:var(--accent);color:#fff;cursor:pointer}
button:hover{background:var(--accent-h)}
button:disabled{opacity:.6;cursor:default}
.err{display:none;margin-top:16px;padding:10px 12px;border:1px solid var(--err);
     background:var(--err-bg);color:var(--err);border-radius:8px;font-size:13px}
.err.show{display:block}
footer{text-align:center;color:var(--muted);font-size:12px;padding:16px}
.spin{display:inline-block;width:14px;height:14px;border:2px solid #fff;border-top-color:transparent;
      border-radius:50%;animation:r .8s linear infinite;vertical-align:-2px;margin-right:8px}
@keyframes r{to{transform:rotate(360deg)}}