.authPage {
  min-height: calc(100vh - 120px);
  display: grid;
  place-items: center;
  padding: 1.25rem 0;
}

.authShell {
  width: min(980px, 95vw);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  background: var(--app-surface-0);
  border: 2px solid var(--app-border);
  border-radius: 0;
  overflow: hidden;
}

.authIntro {
  padding: 1.6rem;
  border-right: 2px solid var(--app-border);
  background: var(--app-surface-1);
  color: var(--app-text-secondary);
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 0.5rem;
}

.authIntroTop {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 0.85rem;
}

.authIntroBottom {
  display: flex;
  align-items: stretch;
}

.authMediaFrame {
  width: 100%;
  min-height: 180px;
  border: 2px solid var(--app-border);
  background: var(--app-body-bg);
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
}

.authIntroImage {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  opacity: 0.92;
  filter: saturate(0.92) brightness(1.04);
}

.authBadge {
  width: fit-content;
  border: 1px solid var(--app-border-strong);
  background: var(--app-surface-2);
  color: var(--app-text-primary);
  border-radius: 0;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  padding: 0.26rem 0.5rem;
  text-transform: uppercase;
  font-weight: 700;
}

.authTitle {
  margin: 0;
  font-family: "IBM Plex Mono", "JetBrains Mono", "Fira Code", monospace;
  font-size: clamp(1.25rem, 2.5vw, 1.9rem);
  line-height: 1.1;
  font-weight: 700;
  color: var(--app-text-primary);
}

.authSubtitle {
  margin: 0;
  max-width: 40ch;
  font-size: 0.88rem;
  color: var(--app-text-muted);
}

.authFeatureList {
  margin: 0.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.4rem;
}

.authFeatureList li {
  color: var(--app-text-secondary);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.authFeatureList i {
  color: var(--app-accent);
}

.authCard {
  padding: 1.6rem;
  background: var(--app-surface-0);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.authCard .card {
  background: var(--app-surface-1);
  border: 2px solid var(--app-border);
  border-radius: 0;
  box-shadow: none;
  margin: 0;
}

.authCard .card:hover {
  transform: none;
}

.authCard .card-title {
  color: var(--app-text-primary);
  font-size: 1.05rem;
  margin-bottom: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-family: "IBM Plex Mono", "JetBrains Mono", "Fira Code", monospace;
}

.authCard .form-label {
  font-size: 0.78rem;
  color: var(--app-text-secondary);
  margin-bottom: 0.3rem;
  letter-spacing: 0.02em;
}

.authCard .form-control {
  background: var(--app-surface-2);
  border: 1px solid var(--app-border);
  color: var(--app-text-primary);
  border-radius: 0;
  min-height: 40px;
}

.authCard .form-control::placeholder {
  color: var(--app-text-muted);
}

.authCard .form-control:focus {
  border-color: var(--app-accent);
  box-shadow: 0 0 0 1px var(--app-accent);
}

.authSubmit {
  margin-top: 0.25rem;
  border: 1px solid var(--app-border-strong);
  border-radius: 0;
  min-height: 40px;
  color: var(--app-text-primary);
  background: var(--app-accent-strong);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.authSubmit:hover {
  background: var(--app-accent);
  color: var(--app-text-primary);
}

.authHint {
  margin-top: 0.85rem;
  font-size: 0.8rem;
  color: var(--app-text-secondary);
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.3rem;
}

.authHintLabel {
  color: var(--app-text-secondary);
  opacity: 1;
}

.authHint a {
  color: var(--app-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.authHint a:hover {
  color: var(--app-accent-soft);
}

.authError {
  min-height: 14px;
  font-size: 0.73rem;
  color: var(--app-danger);
  margin-top: 0.18rem;
}

@media (max-width: 991.98px) {
  .authShell {
    grid-template-columns: 1fr;
  }

  .authIntro {
    grid-template-rows: auto auto;
    border-right: 0;
    border-bottom: 2px solid var(--app-border);
  }

  .authMediaFrame {
    min-height: 140px;
  }
}

@media (max-width: 575.98px) {
  .authPage {
    padding: 0.7rem 0;
  }

  .authIntro,
  .authCard {
    padding: 1rem;
  }
}