:root{
  --teal:#0d9488; --teal-dark:#0b7c72; --bg:#eef4f3; --card:#ffffff;
  --line:#dfe9e7; --fg:#20302e; --dim:#6d817e; --err:#c2410c;
}
*{box-sizing:border-box}
body.login-page{
  margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,#f2f8f7 0%,#e7f1ef 55%,#dcefea 100%);
  font:15px/1.6 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--fg);
}
.card{
  width:330px;padding:34px 30px 26px;background:var(--card);border:1px solid var(--line);
  border-radius:18px;box-shadow:0 12px 34px rgba(13,148,136,.10);display:grid;gap:12px;
}
.logo{
  width:52px;height:52px;border-radius:15px;margin:0 auto 2px;display:flex;
  align-items:center;justify-content:center;font-size:25px;color:#fff;
  background:linear-gradient(140deg,#14b8a6,#0d9488);
}
h1{margin:0;text-align:center;font-size:19px;font-weight:600;letter-spacing:.5px}
.sub{margin:0 0 10px;text-align:center;color:var(--dim);font-size:13px}
label{display:grid;gap:6px;font-size:13px;color:var(--dim)}
input{
  font:inherit;color:var(--fg);background:#fbfdfd;border:1px solid var(--line);
  border-radius:10px;padding:10px 12px;transition:.15s;
}
input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(13,148,136,.12)}
button{
  margin-top:6px;font:inherit;font-weight:600;color:#fff;border:none;border-radius:10px;
  padding:11px;cursor:pointer;background:linear-gradient(140deg,#14b8a6,#0d9488);transition:.15s;
}
button:hover{background:linear-gradient(140deg,#0d9488,var(--teal-dark))}
button:disabled{opacity:.7;cursor:default}
.msg{margin:2px 0 0;min-height:20px;font-size:13px;color:var(--err);text-align:center}