* { box-sizing: border-box; }
:root {
  --pagina: #f6f6f3;
  --superficie: #fcfcfb;
  --superficie-2: #f3f2ee;
  --tinta: #0b0b0b;
  --tinta-2: #52514e;
  --tinta-3: #898781;
  --hairline: #e6e5df;
  --bom: #0ca30c;
  --critico: #d03b3b;
}
body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--tinta);
  background: var(--pagina);
  -webkit-font-smoothing: antialiased;
}
.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px 18px;
}
.login-card {
  width: min(100%, 390px);
  padding: 28px;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: var(--superficie);
  box-shadow: 0 1px 2px rgba(11,11,11,.05), 0 10px 30px rgba(11,11,11,.06);
}
.brand-line { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--tinta);
  position: relative;
}
.brand-mark::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 2px;
  background: var(--superficie);
  transform: rotate(45deg);
}
.brand-name { font-size: 15px; font-weight: 700; letter-spacing: -.01em; }
.brand-name em { color: var(--tinta-3); font-style: normal; font-weight: 600; }
.login-heading { margin: 34px 0 24px; }
.eyebrow { margin: 0 0 8px !important; color: var(--tinta-3) !important; font-size: 10px !important; font-weight: 700; letter-spacing: .12em; }
.login-heading h1 { margin: 0; font-size: 24px; line-height: 1.18; letter-spacing: -.025em; text-wrap: balance; }
.login-heading p { margin: 8px 0 0; color: var(--tinta-2); font-size: 13px; line-height: 1.55; text-wrap: pretty; }
form { display: grid; gap: 14px; }
label { display: grid; gap: 6px; }
label span { color: var(--tinta-2); font-size: 12px; font-weight: 650; }
input {
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--hairline);
  border-radius: 9px;
  background: var(--superficie-2);
  color: var(--tinta);
  font: inherit;
  outline: none;
  transition: border-color 160ms, box-shadow 160ms;
}
input:focus { border-color: var(--tinta-2); box-shadow: 0 0 0 3px rgba(11,11,11,.07); }
button {
  height: 42px;
  margin-top: 2px;
  border: 0;
  border-radius: 9px;
  background: var(--tinta);
  color: var(--superficie);
  font: 650 14px/1 system-ui, -apple-system, "Segoe UI", sans-serif;
  cursor: pointer;
  transition: opacity 150ms, transform 120ms;
}
button:hover { opacity: .86; }
button:active { transform: scale(.98); }
button:disabled { opacity: .5; cursor: wait; }
.login-error { min-height: 18px; margin: -4px 0 -6px; color: var(--critico); font-size: 12px; }
.shared-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--hairline);
  color: var(--tinta-3);
  font-size: 11.5px;
}
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--bom); box-shadow: 0 0 0 3px rgba(12,163,12,.10); }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }