* {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;

  --canvas: #1c1c1e;
  --surface: #242426;
  --surface-2: #2c2c2e;
  --text: #f2f2f7;
  --muted: #98989d;
  --line: rgba(255, 255, 255, .12);
  --accent: #0a84ff;
  --danger: #ff453a;
}

html {
  min-height: 100%;
  background: #111112;
}

body.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;

  margin: 0;
  padding: 22px;

  background:
    radial-gradient(
      circle at 72% 8%,
      rgba(10, 132, 255, .16),
      transparent 34%
    ),
    radial-gradient(
      circle at 20% 100%,
      rgba(94, 92, 230, .10),
      transparent 34%
    ),
    var(--canvas);

  color: var(--text);

  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Display",
    "SF Pro Text",
    system-ui,
    sans-serif;

  -webkit-font-smoothing: antialiased;
}

.card {
  width: min(410px, 100%);
  padding: 30px;

  border: 1px solid var(--line);
  border-radius: 20px;

  background: rgba(44, 44, 46, .88);

  box-shadow:
    0 1px 0 rgba(255, 255, 255, .04) inset,
    0 30px 80px rgba(0, 0, 0, .38);

  backdrop-filter: blur(28px) saturate(145%);
  -webkit-backdrop-filter: blur(28px) saturate(145%);
}

.logo {
  margin-bottom: 22px;
}

.logo b {
  display: block;

  color: #f5f5f7;

  font-size: 25px;
  font-weight: 700;
  letter-spacing: -.025em;
}

.logo p {
  margin: 7px 0 0;

  color: var(--muted);
  line-height: 1.45;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;

  margin: 15px 0;
}

label {
  color: #d1d1d6;
  font-size: 13px;
  font-weight: 600;
}

input {
  width: 100%;
  min-height: 44px;

  padding: 11px 12px;

  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 11px;

  background: rgba(28, 28, 30, .82);
  color: var(--text);

  font: inherit;

  box-shadow:
    0 1px 0 rgba(255, 255, 255, .025) inset;
}

input:focus {
  border-color: rgba(10, 132, 255, .86);
  outline: 3px solid rgba(10, 132, 255, .20);
}

button {
  width: 100%;
  min-height: 44px;

  margin-top: 7px;
  padding: 11px 14px;

  border: 0;
  border-radius: 11px;

  background: var(--accent);
  color: #fff;

  cursor: pointer;

  font: inherit;
  font-weight: 650;

  box-shadow:
    0 1px 0 rgba(255, 255, 255, .16) inset,
    0 8px 24px rgba(10, 132, 255, .18);

  transition:
    background .15s ease,
    transform .12s ease;
}

button:hover {
  background: #198cff;
}

button:active {
  transform: scale(.99);
}

.err {
  padding: 11px 12px;

  border: 1px solid rgba(255, 69, 58, .25);
  border-radius: 11px;

  background: rgba(255, 69, 58, .10);
  color: #ff8179;
}

.hint {
  margin: 16px 0 0;

  color: var(--muted);

  font-size: 12px;
  line-height: 1.45;
}

@media (max-width: 520px) {
  body.login-shell {
    padding: 14px;
  }

  .card {
    padding: 24px 20px;
    border-radius: 17px;
  }
}