:root {
  color-scheme: dark;
  --login-bg: #0b172a;
  --login-surface: #14243c;
  --login-border: #2b4262;
  --login-text: #edf5ff;
  --login-muted: #a9bbd2;
  --login-primary: #3a78d4;
  --login-primary-hover: #4a88e4;
  --login-danger: #ff8793;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  color: var(--login-text);
  background: var(--login-bg);
  font-family: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 1.25rem;
}

.login-card {
  width: min(100%, 460px);
  overflow: hidden;
  border-top: 4px solid var(--login-primary) !important;
  border-radius: 1rem;
  background: var(--login-surface);
  box-shadow: 0 24px 70px rgb(0 0 0 / 32%);
}

.brand-eyebrow {
  color: #72b7ff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.login-description,
.privacy-note { color: var(--login-muted); }
.login-description { line-height: 1.55; }
.privacy-note { font-size: 0.78rem; }
.login-error { color: var(--login-danger); font-size: 0.86rem; }

.form-control {
  min-height: 46px;
  color: var(--login-text);
  border-color: var(--login-border);
  background: #0e1d32;
}

.form-control:focus {
  color: var(--login-text);
  border-color: #76b7ff;
  background: #0e1d32;
  box-shadow: 0 0 0 0.22rem rgb(75 142 222 / 22%);
}

.btn-primary {
  min-height: 46px;
  border-color: var(--login-primary);
  background: var(--login-primary);
  font-weight: 700;
}

.btn-primary:hover,
.btn-primary:focus { border-color: var(--login-primary-hover); background: var(--login-primary-hover); }