:root {
  --bg: var(--ui-surface-page);
  --card: var(--ui-surface-card);
  --text: var(--ui-text);
  --muted: var(--ui-text-muted);
  --danger: var(--ui-danger-strong);
  --border: var(--ui-border);
  --font-sans: 'Roboto', Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
}

button, input, select, textarea { font-family: inherit; }

.login-card {
  background: var(--card);
  border-radius: 14px;
  box-shadow: 0 10px 40px color-mix(in srgb, var(--ui-text) 8%, transparent);
  width: 380px;
  max-width: 92vw;
  padding: 36px 32px;
}

.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.login-logo svg { color: var(--accent); }
.login-form { display: flex; flex-direction: column; gap: var(--form-stack-gap); }
.btn-primary {
  width: 100%;
  min-height: 44px;
  padding: 0 16px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--ui-text-inverse);
  font-size: .92rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color .15s ease;
}
.btn-primary:hover { background: var(--ui-text-accent); }
.btn-primary:focus-visible { outline: 3px solid var(--ui-focus-ring); outline-offset: 2px; }
.error-msg {
  background: var(--ui-danger-surface-soft);
  color: var(--danger);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: .85rem;
  margin-bottom: 16px;
}
.footer { text-align: center; margin-top: 20px; font-size: .78rem; color: var(--muted); }

@media (max-width: 640px) {
  body {
    min-height: 100dvh;
    align-items: stretch;
    padding: max(20px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  }
  .login-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    max-width: none;
    min-height: calc(100dvh - 40px);
    padding: 28px 20px;
    border-radius: 12px;
  }
  .login-logo { margin-bottom: 24px; }
  .login-logo h1 { font-size: 1.2rem; }
  .field-kit-native-control { min-height: 44px; border-radius: 8px; font-size: 16px; }
  .btn-primary { font-size: 14px; }
  .error-msg, .footer { font-size: 13px; line-height: 1.45; }
}