/* Test site only. Grade Guide opens from the letter grade, not a page section. */
.grade-guide-trigger {
  appearance: none;
  font: inherit;
  cursor: pointer;
  color: inherit;
}

.grade-guide-trigger:focus-visible {
  outline: 2px solid var(--primary, #13baee);
  outline-offset: 3px;
}

.section-heading .grade-guide-trigger--source {
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-align: right;
  text-decoration: underline dotted;
  text-underline-offset: 3px;
}

.grade-guide-trigger--hero {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  width: fit-content;
  max-width: 100%;
  margin: 0;
  padding: 7px 11px;
  border: 1px solid rgba(19, 186, 238, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--navy, #0a2540);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.2;
  text-align: left;
  box-shadow: 0 8px 18px rgba(6, 20, 46, 0.08);
}

.grade-guide-trigger--hero::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent, #7dd8f7), var(--primary, #13baee));
  box-shadow: 0 0 0 4px rgba(19, 186, 238, 0.13);
}

.grade-guide-trigger--hero[aria-expanded="true"],
.grade-guide-trigger--source[aria-expanded="true"] {
  color: var(--navy, #0a2540);
}

.grade-guide-letter-wrap {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-width: 0;
}

.grade-guide-trigger--letter {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
}

.grade-guide-letter-wrap #grade {
  display: block;
  min-height: 112px;
  padding: 14px;
  border: 1px solid rgba(19, 186, 238, 0.45);
  border-radius: 8px;
  background:
    linear-gradient(135deg, var(--grade-soft, rgba(19, 186, 238, 0.18)), rgba(125, 216, 247, 0.08));
  color: var(--grade-color, var(--primary));
  font-size: clamp(4.2rem, 12vw, 6.8rem);
  line-height: 0.86;
  text-align: center;
}

.grade-guide-letter-wrap #grade.is-unavailable {
  min-height: 88px;
  font-size: clamp(2.4rem, 8vw, 3.6rem);
  line-height: 1;
  color: rgba(10, 37, 64, 0.55);
  background: rgba(10, 37, 64, 0.04);
  border-color: rgba(10, 37, 64, 0.16);
}

.grade-guide-hint {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-align: center;
  text-transform: uppercase;
  text-decoration: underline dotted;
  text-underline-offset: 2px;
}

.grade-guide-popover {
  position: fixed;
  z-index: 80;
  box-sizing: border-box;
  min-width: 198px;
  max-width: min(280px, calc(100vw - 16px));
  padding: 12px 12px 10px;
  border: 1px solid rgba(10, 37, 64, 0.14);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(6, 20, 46, 0.18);
}

.grade-guide-popover-title {
  margin: 0 0 8px;
  color: var(--navy, #0a2540);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.grade-guide-popover-table {
  display: grid;
  gap: 2px;
}

.grade-guide-popover-row {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  align-items: baseline;
  gap: 10px;
  padding: 5px 6px;
  border-radius: 6px;
  background: var(--grade-soft, rgba(19, 186, 238, 0.08));
}

.grade-guide-popover-row strong {
  color: var(--grade-color, var(--primary));
  font-size: 0.95rem;
  font-weight: 800;
}

.grade-guide-popover-row span {
  color: var(--muted, #5b6b7c);
  font-size: 0.82rem;
  font-weight: 700;
}

@media (max-width: 720px) {
  .grade-guide-letter-wrap #grade {
    min-height: 88px;
    font-size: clamp(3.2rem, 18vw, 4.8rem);
  }
}