* { box-sizing: border-box; }
html, body {
  margin: 0;
  width: 100%;
  min-height: 100%;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f6f7;
  color: #17272e;
}
body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 25px;
}
.login-card {
  width: 100%;
  max-width: 410px;
  padding: 36px;
  background: white;
  border: 1px solid #e1e7e9;
  border-radius: 16px;
  box-shadow: 0 15px 50px rgba(15,35,45,.08);
}
.brand-login { display: flex; align-items: center; gap: 12px; margin-bottom: 33px; }
.login-logo {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 11px; background: #0d9488; color: white;
  font-weight: 800; font-size: 19px;
}
.brand-login strong { display: block; font-size: 18px; }
.brand-login span { display: block; margin-top: 2px; font-size: 11px; color: #78878e; }
h1 { margin: 0 0 7px; font-size: 24px; }
.subtitle { margin: 0 0 27px; color: #687982; font-size: 13px; }
.field { margin-bottom: 17px; }
label { display: block; margin-bottom: 7px; font-size: 12px; font-weight: 650; }
input {
  width: 100%; padding: 12px 13px; border: 1px solid #d8e0e3;
  border-radius: 9px; outline: none; font: inherit;
}
input:focus { border-color: #0d9488; box-shadow: 0 0 0 3px rgba(13,148,136,.10); }
button {
  width: 100%; margin-top: 6px; padding: 12px; border: 0; border-radius: 9px;
  background: #0d9488; color: white; cursor: pointer; font-weight: 700;
}
button:hover { background: #0b8076; }
button:disabled { opacity: .6; cursor: wait; }
.error {
  display: none; margin-top: 16px; padding: 11px 12px; background: #fff0f0;
  color: #ad3535; border-radius: 8px; font-size: 12px;
}
.error.active { display: block; }