/* Login v2: DS tokens + fundo estelar clássico */

:root {
  color-scheme: light;
  --login-page-bg: var(--ds-bg-primary-dark, #050505);
  --login-page-fg: var(--ds-text-primary, #212529);
  --login-card-border: color-mix(in srgb, var(--ds-border-default, #dee2e6) 72%, transparent);
  --login-card-bg: color-mix(in srgb, var(--ds-surface-elevated, #fff) 78%, transparent);
  --login-card-shadow: var(--ds-shadow-lg, 0 24px 40px rgb(27 40 63 / 0.2));
  --login-title: color-mix(in srgb, var(--ds-text-primary, #212529) 96%, transparent);
  --login-subtitle: color-mix(in srgb, var(--ds-text-secondary, #6c757d) 82%, transparent);
  --login-label: color-mix(in srgb, var(--ds-text-secondary, #6c757d) 90%, transparent);
  --login-input-border: color-mix(in srgb, var(--ds-border-default, #dee2e6) 82%, transparent);
  --login-input-bg: color-mix(in srgb, var(--ds-surface-elevated, #fff) 78%, transparent);
  --login-input-fg: var(--ds-text-primary, #212529);
  --login-input-placeholder: color-mix(in srgb, var(--ds-text-secondary, #6c757d) 58%, transparent);
  --login-input-hover-border: color-mix(in srgb, var(--ds-border-default, #dee2e6) 96%, transparent);
  --login-input-focus-bg: color-mix(in srgb, var(--ds-surface-elevated, #fff) 95%, transparent);
  --login-submit-bg: var(--ds-gray-900, #212529);
  --login-submit-fg: var(--ds-white, #fff);
  --login-submit-hover-opacity: 0.9;
  --login-link: color-mix(in srgb, var(--ds-text-secondary, #6c757d) 78%, transparent);
  --login-link-hover: color-mix(in srgb, var(--ds-text-primary, #212529) 92%, transparent);
  --login-note: color-mix(in srgb, var(--ds-text-secondary, #6c757d) 72%, transparent);
}

:root[data-theme-effective="dark"] {
  color-scheme: dark;
  --login-page-bg: var(--ds-bg-primary-dark, #050505);
  --login-page-fg: var(--ds-white, #fff);
  --login-card-border: color-mix(in srgb, var(--ds-white, #fff) 12%, transparent);
  --login-card-bg: color-mix(in srgb, var(--ds-slate-950, #0a0b0f) 62%, transparent);
  --login-card-shadow: var(--ds-shadow-lg, 0 24px 40px rgb(0 0 0 / 0.45));
  --login-title: color-mix(in srgb, var(--ds-white, #fff) 97%, transparent);
  --login-subtitle: color-mix(in srgb, var(--ds-white, #fff) 64%, transparent);
  --login-label: color-mix(in srgb, var(--ds-white, #fff) 62%, transparent);
  --login-input-border: color-mix(in srgb, var(--ds-white, #fff) 16%, transparent);
  --login-input-bg: color-mix(in srgb, var(--ds-white, #fff) 6%, transparent);
  --login-input-fg: var(--ds-white, #fff);
  --login-input-placeholder: color-mix(in srgb, var(--ds-white, #fff) 42%, transparent);
  --login-input-hover-border: color-mix(in srgb, var(--ds-white, #fff) 26%, transparent);
  --login-input-focus-bg: color-mix(in srgb, var(--ds-white, #fff) 10%, transparent);
  --login-submit-bg: var(--ds-surface-elevated, #fff);
  --login-submit-fg: var(--ds-gray-900, #212529);
  --login-submit-hover-opacity: 0.94;
  --login-link: color-mix(in srgb, var(--ds-white, #fff) 62%, transparent);
  --login-link-hover: color-mix(in srgb, var(--ds-white, #fff) 90%, transparent);
  --login-note: color-mix(in srgb, var(--ds-white, #fff) 50%, transparent);
}

body.login-page {
  margin: 0;
  min-height: 100vh;
  background: var(--login-page-bg);
  color: var(--login-page-fg);
  font-family: var(--ds-font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif);
  overflow: hidden;
}

#space {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.login-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  padding: clamp(1rem, 3vw, 2rem);
  display: grid;
  place-items: center;
}

.login-card {
  width: min(100%, 24.5rem);
}

.login-card::part(card) {
  border-radius: 1rem;
  border: 1px solid var(--login-card-border);
  background: var(--login-card-bg);
  /* backdrop-filter removido: o ds-card aplica internamente via shadow CSS.
     Aplicar aqui via ::part() cria nested compositing groups que quebram
     o efeito no Firefox (inner blur vê grupo vazio, não o starfield). */
  box-shadow: var(--login-card-shadow);
  gap: 1rem;
}

.login-header {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 0.5rem;
  margin: 0;
}

.login-logo {
  width: 4.25rem;
  height: 4.25rem;
  object-fit: contain;
  filter: drop-shadow(0 0 16px color-mix(in srgb, var(--ds-white, #fff) 18%, transparent));
}

.login-title {
  margin: 0;
  font-size: clamp(1.2rem, 2.1vw, 1.45rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--login-title);
}

.login-subtitle {
  margin: 0;
  font-size: 0.9rem;
  color: var(--login-subtitle);
}

.login-alert {
  border-radius: 0.65rem;
  border: 1px solid color-mix(in srgb, var(--ds-danger, #dc3545) 40%, transparent);
  background: color-mix(in srgb, var(--ds-danger, #dc3545) 24%, transparent);
  color: color-mix(in srgb, var(--ds-danger, #dc3545) 24%, var(--ds-white, #fff) 76%);
  padding: 0.72rem 0.8rem;
  font-size: 0.875rem;
  line-height: 1.4;
}

.login-form {
  display: grid;
  gap: 0.88rem;
}

.login-field {
  display: grid;
  gap: 0.42rem;
}

.login-field label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--login-label);
}

.login-field input {
  width: 100%;
  min-height: 2.75rem;
  border-radius: 0.62rem;
  border: 1px solid var(--login-input-border);
  background: var(--login-input-bg);
  color: var(--login-input-fg);
  padding: 0.72rem 0.86rem;
  font-size: 0.94rem;
  outline: none;
  transition: border-color var(--ds-transition-fast, 150ms ease), background var(--ds-transition-fast, 150ms ease), box-shadow var(--ds-transition-fast, 150ms ease);
}

.login-field input::placeholder {
  color: var(--login-input-placeholder);
}

.login-field input:hover {
  border-color: var(--login-input-hover-border);
}

.login-field input:focus-visible {
  border-color: var(--ds-primary, #00d4ff);
  background: var(--login-input-focus-bg);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ds-primary, #00d4ff) 24%, transparent);
}

.login-submit {
  width: 100%;
  min-height: 2.8rem;
  border: none;
  border-radius: 0.62rem;
  background: var(--login-submit-bg);
  color: var(--login-submit-fg);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--ds-transition-fast, 150ms ease), opacity var(--ds-transition-fast, 150ms ease), box-shadow var(--ds-transition-fast, 150ms ease);
}

.login-submit:hover:not(:disabled) {
  opacity: var(--login-submit-hover-opacity);
}

.login-submit:active:not(:disabled) {
  transform: scale(0.985);
}

.login-submit:focus-visible {
  outline: 2px solid var(--ds-primary, #00d4ff);
  outline-offset: 2px;
}

.login-submit:disabled {
  opacity: 0.58;
  cursor: not-allowed;
}

.login-submit__loading {
  display: none;
}

.login-form.is-submitting .login-submit__label {
  display: none;
}

.login-form.is-submitting .login-submit__loading {
  display: inline-block;
}

.login-footer {
  text-align: center;
}

.login-footer a {
  font-size: 0.82rem;
  color: var(--login-link);
  text-decoration: none;
  transition: color var(--ds-transition-fast, 150ms ease);
}

.login-footer a:hover {
  color: var(--login-link-hover);
}

.login-security-note {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.45;
  text-align: center;
  color: var(--login-note);
}

.login-honeypot {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

@media (max-width: 520px) {
  .login-shell {
    padding: 1rem;
  }

  .login-card {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-submit,
  .login-field input,
  .login-footer a {
    transition: none;
  }
}