/* Shared paper, ink and gold keep welcome offers part of the research site. */
.referral-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  color: var(--text-secondary);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  white-space: nowrap;
  cursor: pointer;
  list-style: none;
}
.referral-link::-webkit-details-marker { display: none; }
.referral-link:hover { color: var(--accent-dark); }
.referral-link-label {
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: var(--fw-normal);
}
.referral-nav {
  margin-left: var(--sp-sm);
  padding-left: var(--sp-lg);
  border-left: 1px solid var(--border-color);
}
.referral-menu { position: relative; }
.referral-chevron { font-size: 15px; line-height: 1; }
.referral-menu[open] > summary .referral-chevron { transform: rotate(180deg); }
.referral-menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: min(310px, calc(100vw - 24px));
  padding: var(--sp-sm);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  text-align: left;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.referral-menu[data-side="above"] > .referral-menu-panel { top: auto; bottom: calc(100% + 8px); }
.referral-choice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-lg);
  padding: var(--sp-md);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
}
.referral-choice:hover { background: var(--bg-primary); }
.referral-choice strong { font-weight: var(--fw-semibold); }
.referral-choice-reward { display: block; margin-top: var(--sp-xs); color: var(--text-secondary); font-size: var(--fs-xs); }
.referral-choice small { display: block; margin-top: var(--sp-xs); color: var(--text-tertiary); font-size: 11px; }
.referral-choice-arrow { color: var(--text-tertiary); }
.referral-menu-disclosure {
  margin: var(--sp-sm) var(--sp-md) var(--sp-xs);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-tertiary);
  line-height: var(--lh-relaxed);
}
.referral-mobile-heading { display: flex; justify-content: space-between; padding: 0 var(--sp-md) var(--sp-sm); font-size: var(--fs-xs); color: var(--text-tertiary); }
.footer-links [data-referral-slot] { display: inline-flex; }
.footer-links .referral-link { min-height: auto; }
.footer-links .referral-choice { color: var(--text-primary); }

.referral-offer {
  margin-top: var(--sp-2xl);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
}
.referral-offer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-sm);
  padding: var(--sp-xl) var(--sp-xl) 0;
}
.referral-offer-header h2 { font-size: var(--fs-md); font-weight: var(--fw-semibold); line-height: 1.5; }
.referral-offer-header p { margin-top: var(--sp-xs); color: var(--text-tertiary); font-size: var(--fs-xs); line-height: var(--lh-relaxed); }
.referral-tag {
  display: inline-block;
  margin-left: var(--sp-sm);
  padding: 1px 6px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-tertiary);
  font-size: 10px;
  font-weight: var(--fw-normal);
  vertical-align: middle;
}
.referral-dismiss {
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  margin: -8px -8px 0 0;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  font-size: 22px;
}
.referral-dismiss:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.referral-providers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: var(--sp-xl) 0; }
.referral-provider { display: flex; flex-direction: column; min-width: 0; padding: 0 var(--sp-xl); }
.referral-provider + .referral-provider { border-left: 1px solid var(--border-color); }
.referral-provider-brand { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--sp-sm) var(--sp-md); margin-bottom: var(--sp-lg); }
.referral-wordmark { font-family: var(--font-display); font-size: var(--fs-md); font-weight: var(--fw-bold); letter-spacing: -0.035em; }
.referral-audience { color: var(--text-tertiary); font-size: 11px; }
.referral-provider h3 {
  font-size: clamp(18px, 1.65vw, 22px);
  font-weight: var(--fw-semibold);
  line-height: 1.4;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
.referral-description { margin-top: var(--sp-sm); color: var(--text-secondary); font-size: var(--fs-sm); line-height: var(--lh-relaxed); }
.referral-conditions { margin: var(--sp-md) 0 var(--sp-lg); color: var(--text-tertiary); font-size: var(--fs-xs); line-height: var(--lh-relaxed); }
.referral-provider-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-sm) var(--sp-lg); margin-top: auto; }
.referral-cta {
  justify-content: center;
  min-height: 44px;
  border-radius: var(--radius-sm);
  border-color: var(--border-bold);
  background: var(--bg-primary);
  color: var(--text-primary);
  white-space: normal;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.referral-cta:hover { background: var(--accent-dim); border-color: var(--accent-dark); transform: none; box-shadow: none; }
.referral-cta:active { transform: none; }
.referral-terms { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--fs-xs); color: var(--text-secondary); text-decoration: underline; text-underline-offset: 3px; }
.referral-terms:hover { color: var(--text-primary); }
.referral-fine-print {
  margin: 0 var(--sp-xl);
  padding: var(--sp-lg) 0;
  border-top: 1px solid var(--border-color);
  color: var(--text-tertiary);
  font-size: var(--fs-xs);
  line-height: var(--lh-relaxed);
}
.referral-link:focus-visible,
.referral-choice:focus-visible,
.referral-offer a:focus-visible,
.referral-dismiss:focus-visible { outline: 2px solid var(--ledger-focus); outline-offset: 3px; }
@media (min-width: 1025px) and (max-width: 1200px) {
  .referral-nav { margin-left: 4px; padding-left: 12px; }
  .referral-nav .referral-link-label { display: none; }
}
@media (max-width: 720px) {
  .referral-offer-header { padding: var(--sp-lg) var(--sp-lg) 0; }
  .referral-providers { grid-template-columns: minmax(0, 1fr); margin: var(--sp-lg) 0; }
  .referral-provider { padding: 0 var(--sp-lg); }
  .referral-provider + .referral-provider { margin-top: var(--sp-xl); padding-top: var(--sp-xl); border-left: 0; border-top: 1px solid var(--border-color); }
  .referral-fine-print { margin: 0 var(--sp-lg); }
}
@media (prefers-reduced-motion: reduce) { .referral-cta { transition: none; } }
@media print { .referral-offer, [data-referral-slot] { display: none; } }