.auth {
  background: linear-gradient(135deg, #0f172a 0%, #1f2937 60%, #111827 100%);
  color: var(--bf-ink-1);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-shell {
  max-width: 980px;
  width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  background: #0f172a;
  border-radius: var(--bf-radius-lg);
  overflow: hidden;
  box-shadow: var(--bf-shadow-2);
}

.auth-brand {
  background: radial-gradient(circle at 20% 20%, rgba(45,108,223,0.25), transparent 55%), rgba(15,23,42,0.96);
  color: #e5e7eb;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: var(--bf-radius-lg) 0 0 var(--bf-radius-lg);
}
.auth-brand .logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: 1.2rem;
}
.auth-brand .muted {
  color: #cbd5e1;
  font-size: .95rem;
  margin-top: 1.25rem;
}

.auth-card {
  padding: 2rem;
  background: var(--bf-surface-1);
  border-radius: 0 var(--bf-radius-lg) var(--bf-radius-lg) 0;
}
.auth-card h1 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: .35rem;
}
.auth-card .lead {
  color: var(--bf-ink-3);
  margin-bottom: 1rem;
}

.auth-form .form-control {
  border-radius: var(--bf-radius-sm);
}
.auth-links {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .9rem;
}

@media (max-width: 960px) {
  .auth-shell {
    grid-template-columns: 1fr;
  }
  .auth-brand {
    display: none;
  }
  .auth {
    padding: 1.5rem 1rem;
  }
}

/* GDPR layer */
.gdpr-layer {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 9999;
  backdrop-filter: blur(2px);
}
.gdpr-panel {
  max-width: 720px;
  width: min(100%, 720px);
  border: 1px solid var(--bf-border-subtle, #e5e7eb);
  background: var(--bf-surface-1, #ffffff);
  color: var(--bf-ink-1, #0f172a);
  box-shadow: var(--bf-shadow-3, 0 22px 50px rgba(15, 23, 42, 0.22));
}
.gdpr-panel .card-body {
  padding: 1.5rem;
}
.gdpr-kicker {
  letter-spacing: 0.08em;
}
.gdpr-title {
  color: var(--bf-ink-1, #0f172a);
}
.gdpr-options {
  display: grid;
  gap: .75rem;
  margin: 1rem 0;
}
.gdpr-option {
  padding: .9rem 1rem;
  border-radius: var(--bf-radius-md);
  background: var(--bf-surface-2, #f8fafc);
  border: 1px solid var(--bf-border-subtle, #e5e7eb);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.gdpr-option .form-check-input {
  width: 2.6em;
  height: 1.4em;
}