/*
 * auth.css — Login/Register layout styling
 * Uses design tokens from app-layout.css; Inter font from layout.
 * Split-screen: visual left pane + form right pane.
 */
html, body {
  height: 100%;
  margin: 0;
}

body.auth-body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(
 circle at top left,
      color-mix(in srgb, var(--color-primary-400) 18%, transparent) 0,
      transparent 55%
    ),
    radial-gradient(
      circle at bottom right,
      color-mix(in srgb, var(--color-dark-700) 10%, transparent) 0,
      transparent 55%
    ),
    var(--color-primary-50);
  color: var(--color-dark-900);
}

html[data-theme="dark"] body.auth-body,
body.auth-body.dark-mode {
  background: radial-gradient(
      circle at top left,
      color-mix(in srgb, var(--color-primary-400) 12%, transparent) 0,
      transparent 50%
    ),
    var(--color-surface-app-dark);
  color: var(--color-text-primary-dark);
}

.auth-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.auth-wrapper {
  width: 100%;
  max-width: 1100px;
  background: hsl(var(--sidebar-accent) / 0.95);
  border-radius: calc(var(--radius) * 2);
  box-shadow: var(--shadow-lg, 0 18px 45px rgba(0, 0, 0, 0.25));
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  border: 1px solid hsl(var(--sidebar-border));
}

.auth-visual {
  padding: 2.5rem 2.75rem;
  background: radial-gradient(circle at top, hsl(var(--primary) / 0.2), transparent 60%),
              radial-gradient(circle at bottom, hsl(var(--sidebar-primary) / 0.35), transparent 65%);
  color: hsl(var(--sidebar-accent-foreground));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.auth-logo {
  width: 2.625rem;
  height: 2.625rem;
  border-radius: var(--radius);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.auth-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.auth-brand-icon--light,
.auth-brand-icon--dark {
  display: none;
}

html[data-theme="light"] .auth-brand-icon--light,
body.light-theme .auth-brand-icon--light {
  display: block;
}

html[data-theme="dark"] .auth-brand-icon--dark,
body.dark-theme .auth-brand-icon--dark {
  display: block;
}

.auth-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.auth-subtitle {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary-500);
}

.auth-highlight {
  margin-top: 2rem;
}

.auth-highlight h1 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.auth-highlight p {
  color: hsl(var(--sidebar-foreground) / 0.9);
  font-size: 0.9375rem;
}

.auth-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.auth-metrics .metric-card {
  background: hsl(var(--sidebar-background) / 0.85);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
  border: 1px solid hsl(var(--sidebar-border));
  min-width: 0;
  flex: 1 1 45%;
}

.auth-metrics .metric-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.auth-metrics .metric-value {
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums lining-nums;
}

.auth-metrics .metric-trend {
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.25rem;
}

.auth-metrics .metric-trend.up {
  color: hsl(var(--success));
}

.auth-metrics .metric-trend.down {
  color: hsl(var(--destructive));
}

.auth-footer {
  margin-top: 1.75rem;
  font-size: 0.8rem;
  color: hsl(var(--sidebar-muted));
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.auth-footer span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.auth-footer .small-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.7rem;
  background: hsl(var(--sidebar-background) / 0.9);
  border: 1px solid hsl(var(--sidebar-border));
  color: hsl(var(--foreground));
}

.auth-form-pane {
  background: hsl(var(--sidebar-background));
  padding: 2.75rem 2.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-card {
  background: hsl(var(--sidebar-accent) / 0.98);
  border-radius: calc(var(--radius) * 1.5);
  padding: var(--space-8) 1.75rem;
  box-shadow: var(--shadow-md, 0 4px 20px rgba(0, 0, 0, 0.08));
  border: 1px solid hsl(var(--sidebar-border));
}

.auth-header {
  margin-bottom: 1.75rem;
}

.auth-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.auth-header p {
  color: hsl(var(--muted-foreground));
  font-size: 0.9375rem;
}

.auth-subtext {
  font-size: 0.85rem;
  color: hsl(var(--muted-foreground));
}

.auth-subtext a {
  color: hsl(var(--primary));
  text-decoration: none;
  font-weight: 500;
}

.auth-subtext a:hover {
  color: hsl(var(--primary) / 0.85);
}

/* Form overrides for dark auth card */
.auth-card .form-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: hsl(var(--sidebar-accent-foreground));
}

.auth-card .form-control {
  background-color: hsl(var(--sidebar-background) / 0.9);
  border-radius: var(--radius-md);
  border: 1px solid hsl(var(--sidebar-border));
  padding: 0.625rem 0.75rem;
  color: hsl(var(--sidebar-accent-foreground));
  font-size: 0.9375rem;
}

.auth-card .form-control::placeholder {
  color: hsl(var(--sidebar-muted));
}

.auth-card .form-control:focus {
  background-color: hsl(var(--sidebar-background) / 0.98);
  border-color: hsl(var(--ring));
  box-shadow: 0 0 0 0.2rem hsl(var(--ring) / 0.22);
  color: hsl(var(--sidebar-accent-foreground));
}

.auth-card .form-control.is-invalid {
  border-color: hsl(var(--destructive));
}

.auth-password-group .form-control {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.auth-password-toggle {
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0 0.75rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  border: 1px solid hsl(var(--sidebar-border));
  border-left: 0;
  background-color: hsl(var(--sidebar-background) / 0.85);
  color: hsl(var(--sidebar-accent-foreground));
  transition: background-color var(--duration-normal, 0.2s) ease,
    color var(--duration-normal, 0.2s) ease;
}

.auth-password-toggle:hover {
  background-color: hsl(var(--sidebar-accent));
  color: hsl(var(--sidebar-accent-foreground));
}

.auth-password-toggle:focus-visible {
  outline: 2px solid hsl(var(--ring));
  outline-offset: 2px;
  z-index: 2;
}

.auth-card .form-check-input {
  background-color: transparent;
  border-color: hsl(var(--sidebar-border));
}

.auth-card .form-check-input:checked {
  background-color: hsl(var(--primary));
  border-color: hsl(var(--primary));
}

.auth-card .btn-primary.auth-cta {
  min-height: 2.75rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.auth-card .btn-primary {
  background: linear-gradient(135deg, var(--color-primary-400), var(--color-primary-500));
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.9375rem;
  box-shadow: var(--shadow-md, 0 8px 24px hsl(var(--primary) / 0.35));
  transition: box-shadow var(--duration-normal, 0.2s) var(--ease-out, ease),
    transform var(--duration-normal, 0.2s) var(--ease-out, ease);
}

@media (prefers-reduced-motion: no-preference) {
  .auth-card .btn-primary:hover {
    box-shadow: var(--shadow-lg, 0 12px 32px hsl(var(--primary) / 0.45));
    transform: translateY(-1px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-card .btn-primary:hover {
    box-shadow: var(--shadow-md, 0 8px 24px hsl(var(--primary) / 0.35));
  }
}

.auth-card .text-link {
  color: hsl(var(--sidebar-muted));
  font-size: 0.85rem;
  text-decoration: none;
}

.auth-card .text-link:hover {
  color: hsl(var(--sidebar-accent-foreground));
  text-decoration: underline;
}

.auth-card .alert-danger {
  border-radius: var(--radius-md);
  background-color: hsl(var(--destructive) / 0.12);
  border-color: hsl(var(--destructive) / 0.4);
  color: hsl(var(--destructive-foreground) / 0.95);
  font-size: 0.9rem;
}

.auth-card .validation-summary-errors ul {
  margin-bottom: 0;
  padding-left: 1.2rem;
}

.auth-card .external-login-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 1.5rem 0 1rem;
  color: hsl(var(--sidebar-muted));
  font-size: 0.85rem;
}

.auth-card .external-login-divider::before,
.auth-card .external-login-divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px dashed hsl(var(--sidebar-border));
}

.auth-card .external-login-divider span {
  padding: 0 0.75rem;
}

.auth-card .external-login-btn {
  border-radius: 999px;
  border: 1px solid hsl(var(--sidebar-border));
  background: transparent;
  color: hsl(var(--sidebar-accent-foreground));
  font-size: 0.9rem;
  padding: 0.6rem 0.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

.auth-card .external-login-btn:hover {
  background: hsl(var(--sidebar-background) / 0.5);
  border-color: hsl(var(--primary));
  color: hsl(var(--sidebar-accent-foreground));
}

@media (max-width: 991.98px) {
  .auth-wrapper {
    max-width: 480px;
    grid-template-columns: 1fr;
  }

  .auth-visual {
    display: none;
  }

  .auth-form-pane {
    padding: 2rem 1.5rem;
  }

  .auth-card {
    padding: 1.75rem 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .auth-form-pane {
    padding: 1.5rem 1.25rem;
  }

  .auth-card {
    padding: 1.5rem 1.25rem;
  }
}

@media (max-width: 768px) {
  .auth-card .form-control,
  .auth-card .form-select {
    min-height: var(--touch-target-min, 2.75rem);
  }

  .auth-card .btn-primary,
  .auth-card button[type="submit"]:not(.btn-link) {
    min-height: var(--touch-target-min, 2.75rem);
  }
}