.qz { padding: 0 0 3rem; }

/* ── Topbar ── */
.qz-topbar {
  display: flex; align-items: center; gap: .75rem;
  padding: 1rem 0 1.5rem;
  position: sticky; top: 54px; z-index: 100;
  background: var(--mn-bg);
  transition: background .3s;
}
.qz-topbar-left { display: flex; align-items: center; gap: .5rem; }
.qz-topbar-center { flex: 1; }
.qz-topbar-right { display: flex; align-items: center; gap: .75rem; white-space: nowrap; }

.qz-mode {
  font-size: .68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .07em; color: var(--mn-accent);
  background: var(--mn-accent-l);
  padding: .25rem .7rem; border-radius: 6px;
}
.qz-exit {
  width: 32px; height: 32px; border-radius: 8px;
  display: grid; place-items: center;
  color: var(--mn-muted); font-size: .9rem;
  transition: all .15s; text-decoration: none;
}
.qz-exit:hover { background: var(--mn-red-l); color: var(--mn-red); }

.qz-prog-track {
  height: 6px; border-radius: 3px;
  background: var(--mn-border); overflow: hidden;
}
.qz-prog-fill {
  height: 100%; border-radius: 3px;
  background: linear-gradient(90deg, var(--mn-accent), var(--mn-amber));
  transition: width .5s cubic-bezier(.4,0,.2,1);
}
.qz-counter {
  font-size: .85rem; font-weight: 800; color: var(--mn-ink);
  font-variant-numeric: tabular-nums;
}

/* ── Timer ── */
.qz-timer {
  align-items: center; gap: .35rem;
  font-size: .85rem; font-weight: 800; color: var(--mn-ink);
  font-variant-numeric: tabular-nums;
  background: var(--mn-surface);
  border: 1.5px solid var(--mn-border);
  padding: .25rem .7rem; border-radius: 8px;
  transition: border-color .3s;
}
.qz-timer i { font-size: .75rem; color: var(--mn-accent); }

/* ── Stage ── */
.qz-stage {
  background: var(--mn-surface);
  border: 1px solid var(--mn-border);
  border-radius: 20px;
  padding: 2.5rem 2.25rem;
  box-shadow: var(--mn-shadow-lg);
  transition: background .3s, border-color .3s;
}
@media (max-width: 768px) { .qz-stage { padding: 1.5rem 1.25rem; border-radius: 16px; } }

.qz-q-head { margin-bottom: .75rem; display: flex; align-items: baseline; gap: .25rem; }
.qz-q-num {
  font-family: var(--mn-display);
  font-size: 2.2rem; font-weight: 800; color: var(--mn-accent); line-height: 1;
}
.qz-q-of { font-size: .9rem; font-weight: 600; color: var(--mn-muted); }
.qz-q-text {
  font-family: var(--mn-sans);
  font-size: 1.25rem; font-weight: 600; color: var(--mn-ink);
  line-height: 1.55; margin: 0 0 1.75rem;
}

/* ── Options ── */
.option-group { display: flex; flex-direction: column; gap: .6rem; margin-bottom: 1.5rem; }
.option-button {
  display: flex; align-items: center; gap: .85rem;
  width: 100%; padding: 1rem 1.15rem; border-radius: 14px;
  border: 2px solid var(--mn-border); background: var(--mn-surface);
  color: var(--mn-ink); font-family: var(--mn-sans);
  font-size: 1rem; font-weight: 500; text-align: left;
  cursor: pointer; transition: all .2s; position: relative;
}
.option-button:hover:not(.disabled) {
  border-color: var(--mn-accent); background: var(--mn-accent-l);
  transform: translateX(4px);
}
.ob-marker {
  width: 36px; height: 36px; flex-shrink: 0;
  border-radius: 10px; font-weight: 800; font-size: .9rem;
  display: grid; place-items: center;
  background: var(--mn-surface-2, var(--mn-border));
  color: var(--mn-ink-2, var(--mn-ink)); transition: all .2s;
}
.option-button:hover:not(.disabled) .ob-marker { background: var(--mn-accent); color: #fff; }
.ob-body { flex: 1; line-height: 1.45; }
.ob-indicator {
  width: 24px; height: 24px; flex-shrink: 0;
  border-radius: 50%; border: 2px solid var(--mn-border); transition: all .2s;
}

/* Neutral "selected" — accent (not green, not red) */
.option-button.selected {
  border-color: var(--mn-accent) !important;
  background: var(--mn-accent-l) !important;
  opacity: 1 !important;
}
.option-button.selected .ob-marker { background: var(--mn-accent); color: #fff; }
.option-button.selected .ob-indicator {
  border-color: var(--mn-accent); background: var(--mn-accent);
  box-shadow: inset 0 0 0 3px #fff;
}

/* Correct */
.option-button.correct {
  border-color: var(--mn-green) !important;
  background: var(--mn-green-l) !important;
  opacity: 1 !important;
}
.option-button.correct .ob-marker { background: var(--mn-green); color: #fff; }
.option-button.correct .ob-indicator {
  border-color: var(--mn-green); background: var(--mn-green);
  box-shadow: inset 0 0 0 3px #fff;
}

/* Incorrect */
.option-button.incorrect {
  border-color: var(--mn-red) !important;
  background: var(--mn-red-l) !important;
  opacity: 1 !important;
}
.option-button.incorrect .ob-marker { background: var(--mn-red); color: #fff; }
.option-button.incorrect .ob-indicator {
  border-color: var(--mn-red); background: var(--mn-red);
  box-shadow: inset 0 0 0 3px #fff;
}

.option-button.disabled { pointer-events: none; opacity: .55; transform: none !important; }

/* ── Action bar ── */
.qz-bar { display: flex; justify-content: space-between; gap: .75rem; flex-wrap: wrap; }
.qz-btn {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: var(--mn-sans); font-weight: 700; font-size: .9rem;
  padding: .65rem 1.3rem; border-radius: 10px;
  border: none; cursor: pointer; transition: all .15s; text-decoration: none;
}
.qz-btn:hover { transform: translateY(-2px); }
.qz-btn:active { transform: scale(.97); }
.qz-btn:disabled { opacity: .35; pointer-events: none; }
.qz-btn-accent { background: var(--mn-accent); color: #fff; }
.qz-btn-accent:hover { background: var(--mn-accent-h); color: #fff; box-shadow: 0 4px 16px rgba(194,65,12,.2); }
.qz-btn-ghost { background: transparent; color: var(--mn-ink); border: 1.5px solid var(--mn-border); }
.qz-btn-ghost:hover { border-color: var(--mn-accent); color: var(--mn-accent); }

/* ── Explanation ── */
.explanation-box {
  margin-top: 1.25rem;
  background: var(--mn-blue-l); border-left: 4px solid var(--mn-blue);
  border-radius: 12px; padding: 1.25rem 1.4rem;
  color: var(--mn-ink); font-size: .92rem; line-height: 1.65;
}

/* ══════════════════════════════════════
   RESULT SCREEN
   ══════════════════════════════════════ */
.qz-result {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--mn-surface);
  border: 1px solid var(--mn-border);
  border-radius: 22px;
  box-shadow: var(--mn-shadow-lg);
  max-width: 520px;
  margin: 2rem auto 0;
}
.qz-result-ring {
  position: relative;
  width: 150px; height: 150px;
  margin: 0 auto 1.25rem;
}
.qz-ring-svg { display: block; width: 100%; height: 100%; }
.qz-ring-label {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mn-display);
  font-size: 2rem; font-weight: 800; color: var(--mn-ink);
}
.qz-result-title {
  font-family: var(--mn-display);
  font-size: 1.5rem; font-weight: 800;
  color: var(--mn-ink); margin: 0 0 .25rem;
}
.qz-result-sub {
  font-size: 1rem; color: var(--mn-muted);
  margin: 0 0 1.5rem;
}
.qz-result-btns {
  display: flex; justify-content: center; gap: .75rem; flex-wrap: wrap;
}

/* ══════════════════════════════════════
   DETAILED RESULTS
   ══════════════════════════════════════ */
.qz-r-card {
  background: var(--mn-surface);
  border: 1px solid var(--mn-border);
  border-radius: 16px; padding: 1.5rem;
  margin-bottom: .75rem;
  box-shadow: var(--mn-shadow);
}
.qz-r-card.is-correct  { border-left: 4px solid var(--mn-green); }
.qz-r-card.is-incorrect { border-left: 4px solid var(--mn-red); }

.qz-r-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: .5rem;
}
.qz-r-idx {
  font-family: var(--mn-display); font-size: 1.1rem;
  font-weight: 800; color: var(--mn-accent);
}
.qz-r-badge {
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .04em; padding: .2rem .6rem; border-radius: 6px;
  display: inline-flex; align-items: center; gap: .25rem;
}
.qz-r-badge.correct   { background: var(--mn-green-l); color: var(--mn-green); }
.qz-r-badge.incorrect { background: var(--mn-red-l);   color: var(--mn-red); }

.qz-r-stem {
  font-size: .95rem; font-weight: 600; color: var(--mn-ink);
  line-height: 1.5; margin: 0 0 .75rem;
}
.qz-r-opts { display: flex; flex-direction: column; gap: .35rem; margin-bottom: .75rem; }
.qz-r-opt {
  display: flex; align-items: center; gap: .6rem;
  padding: .5rem .75rem; border-radius: 10px;
  border: 1.5px solid var(--mn-border);
  font-size: .88rem; color: var(--mn-ink);
}
.qz-r-opt.correct   { border-color: var(--mn-green); background: var(--mn-green-l); font-weight: 600; }
.qz-r-opt.incorrect { border-color: var(--mn-red);   background: var(--mn-red-l);   font-weight: 600; }
.qz-r-marker {
  width: 26px; height: 26px; flex-shrink: 0;
  border-radius: 7px; font-weight: 800; font-size: .75rem;
  display: grid; place-items: center;
  background: var(--mn-surface-2, var(--mn-border));
  color: var(--mn-ink-2, var(--mn-ink));
}
.qz-r-opt.correct .qz-r-marker   { background: var(--mn-green); color: #fff; }
.qz-r-opt.incorrect .qz-r-marker { background: var(--mn-red);   color: #fff; }
.qz-r-text { flex: 1; line-height: 1.4; }
.qz-r-you {
  font-size: .7rem; font-weight: 600; color: var(--mn-muted);
  margin-left: .5rem; white-space: nowrap;
}

.qz-r-exp-wrap { margin-top: .5rem; }
.qz-r-exp-toggle { font-size: .82rem !important; padding: .35rem .75rem !important; }

/* ── Filters ── */
.qz-pill {
  font-family: var(--mn-sans); font-weight: 600; font-size: .82rem;
  padding: .4rem .9rem; border-radius: 20px;
  border: 1.5px solid var(--mn-border);
  background: var(--mn-surface); color: var(--mn-muted);
  cursor: pointer; transition: all .15s;
}
.qz-pill:hover { border-color: var(--mn-accent); color: var(--mn-accent); }
.qz-pill.active { background: var(--mn-accent); color: #fff; border-color: var(--mn-accent); }

@media (max-width: 576px) {
  .qz-q-text { font-size: 1.05rem; }
  .option-button { padding: .85rem 1rem; font-size: .9rem; }
  .ob-marker { width: 30px; height: 30px; font-size: .8rem; }
  .qz-bar { flex-direction: column; }
  .qz-btn { width: 100%; justify-content: center; }
  .qz-result { padding: 2rem 1.25rem; margin: 1rem auto 0; }
  .qz-result-ring { width: 120px; height: 120px; }
  .qz-ring-label { font-size: 1.6rem; }
}