/* ── Page panel visibility ──────────────────────────────────────────────── */
.page-panel {
  display: none;
}

.page-panel.active {
  display: block;
}

/* -- Quiz Gate overlay (guest usage limit) -------------------------------- */
#quiz-gate {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(8, 6, 2, 0.82);
  backdrop-filter: blur(10px) saturate(1.2);
  -webkit-backdrop-filter: blur(10px) saturate(1.2);
}
#quiz-gate[hidden] { display: none; }

.quiz-gate__card {
  width: 100%;
  max-width: 400px;
  background: rgba(16, 13, 9, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 20px;
  padding: 2.2rem 2rem;
  text-align: center;
  box-shadow: 0 8px 48px rgba(0, 0, 0, 0.7),
              inset 0 1px 0 rgba(255, 255, 255, 0.06);
  animation: gateIn 0.28s cubic-bezier(0.22, 1, 0.36, 1) both;
}
@keyframes gateIn {
  from { opacity: 0; transform: scale(0.94) translateY(12px); }
  to   { opacity: 1; transform: none; }
}

.quiz-gate__icon {
  font-size: 2.5rem;
  line-height: 1;
  margin-bottom: 1rem;
}

.quiz-gate__title {
  font-family: var(--font-heading, 'Eau Sans', sans-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: rgba(248, 248, 248, 0.92);
  margin: 0 0 0.7rem;
}

.quiz-gate__body {
  font-size: 0.88rem;
  color: rgba(248, 248, 248, 0.50);
  line-height: 1.7;
  margin: 0 0 1.8rem;
}

.quiz-gate__actions {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.quiz-gate__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1rem;
  border-radius: 10px;
  font-family: var(--font, sans-serif);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease;
  letter-spacing: 0.01em;
}

.quiz-gate__btn--primary {
  background: var(--primary, #E69420);
  color: #0f0901;
}
.quiz-gate__btn--primary:hover { background: #f5a632; }

.quiz-gate__btn--outline {
  background: transparent;
  color: rgba(248, 248, 248, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.quiz-gate__btn--outline:hover {
  border-color: rgba(255, 255, 255, 0.28);
  color: rgba(248, 248, 248, 0.88);
}

/* Guest quiz remaining pill (shown in the task banner) */
.guest-quiz-pill {
  font-size: 0.74rem;
  font-weight: 600;
  color: rgba(248, 248, 248, 0.40);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  padding: 2px 10px;
  letter-spacing: 0.02em;
}
.guest-quiz-pill--warn {
  color: #E69420;
  background: rgba(230, 148, 32, 0.08);
  border-color: rgba(230, 148, 32, 0.20);
}

/* -- Quiz Task Banner (above fretboard) ----------------------------------- */
.quiz-task-banner {
  flex-shrink: 0;
  min-height: 100px;
  padding: 14px 28px;
  background: #0f0901;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.quiz-banner__name {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--clr-saffron);
  letter-spacing: 0.01em;
  text-align: center;
  line-height: 1.2;
}

.quiz-banner__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.quiz-banner__tag {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 100px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
}

.quiz-banner__tag-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
}

.quiz-banner__tag-val {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-text);
}

.quiz-banner__status {
  font-size: 0.9rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 100px;
}

.quiz-banner__status.correct {
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.28);
  color: #4ade80;
}

.quiz-banner__status.incorrect {
  background: rgba(251, 146, 60, 0.1);
  border: 1px solid rgba(251, 146, 60, 0.28);
  color: #fb923c;
}

/* -- Interval banner: arrow + name + string diagram row ------------------- */
.quiz-banner__interval-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  width: 100%;
}

.quiz-banner__arrow {
  font-size: 3rem;
  line-height: 1;
  font-weight: 900;
  color: var(--clr-saffron);
  user-select: none;
  flex-shrink: 0;
}

.quiz-banner__arrow--down {
  color: #7ec8e3;
}

/* ── Quiz status badge ──────────────────────────────────────────────────── */
.quiz-status {
  display: none;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
}

.quiz-status.correct {
  display: block;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.28);
  color: #4ade80;
}

.quiz-status.incorrect {
  display: block;
  background: rgba(251, 146, 60, 0.1);
  border: 1px solid rgba(251, 146, 60, 0.28);
  color: #fb923c;
}

/* ── Quiz Filter Panel (Quiz Settings sidebar accordions) ────────────────── */

.qf-group {
  border: 1px solid var(--muted);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--background);
}

.qf-group + .qf-group {
  margin-top: 6px;
}

.qf-group__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 7px 10px;
  background: var(--surface);
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-secondary);
  text-align: left;
  user-select: none;
  transition: color var(--transition);
}

.qf-group__header:hover {
  color: var(--clr-text);
}

.qf-group__chevron {
  font-size: 0.58rem;
  flex-shrink: 0;
  transition: transform var(--transition);
}

.qf-group.collapsed .qf-group__chevron {
  transform: rotate(-90deg);
}

.qf-group__body {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.qf-group.collapsed > .qf-group__body {
  display: none;
}

.qf-select-row {
  display: flex;
  gap: 5px;
}

.qf-select-btn {
  flex: 1;
  padding: 4px 6px;
  background: transparent;
  border: 1px solid var(--muted);
  border-radius: var(--radius-sm);
  color: var(--clr-text-secondary);
  font-family: var(--font);
  font-size: 0.68rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition),
              background var(--transition);
}

.qf-select-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(230, 148, 32, 0.08);
}

.qf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 8px;
}

.qf-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  cursor: pointer;
}

.qf-item-label {
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--clr-text-secondary);
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rp-content {
  padding: 4px 8px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.qf-sub-label {
  font-family: var(--font);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-text-muted);
  padding: 6px 0 2px;
}

.qf-divider {
  height: 1px;
  background: var(--muted);
  margin: 4px 0;
}


/* -- Quiz filter section spacing in right panel -------------------------- */
.rp-quiz-filters {
  padding: 0 8px 16px;
}

.rp-quiz-filters .qf-group + .qf-group {
  margin-top: 4px;
}