/* Native question type styles — QMF design system */

/* Passage */
.hsk-passage {
  padding: 16px 18px;
  border-radius: var(--hsk-radius-md);
  background: linear-gradient(160deg, color-mix(in srgb, var(--qmf-bg-secondary) 70%, #fff), var(--qmf-bg-primary));
  border: 1px solid var(--qmf-border);
  margin-bottom: 16px;
  line-height: 1.85;
}
.hsk-passage__line { margin: 0 0 10px; font-size: 1.05rem; }
.hsk-passage__line:last-child { margin-bottom: 0; }
.hsk-passage__figure { margin: 0 0 14px; border-radius: var(--hsk-radius-sm); overflow: hidden; }
.hsk-passage__img { width: 100%; max-height: 220px; object-fit: cover; display: block; }

/* Ruby */
.hsk-ruby__unit { display: inline-flex; flex-direction: column; align-items: center; margin: 0 1px; }
.hsk-ruby__py { font-size: 0.62rem; color: var(--qmf-text-muted); line-height: 1.2; }
.hsk-ruby__hz { font-size: 1.1rem; }
.hsk-ruby__py-line { display: block; font-size: 0.72rem; color: var(--qmf-text-muted); margin-bottom: 4px; }
.hsk-ruby__hz-line { display: block; font-size: 1.05rem; }

/* Options grid */
.hsk-optgrid { display: flex; flex-direction: column; gap: 8px; }
.hsk-opt {
  display: grid; grid-template-columns: 36px 1fr 22px; gap: 10px; align-items: center;
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--qmf-border); border-radius: var(--hsk-radius-sm);
  background: var(--qmf-bg-primary); text-align: left; cursor: pointer;
  transition: all 0.18s var(--hsk-ease-out);
}
.hsk-opt:hover { border-color: var(--qmf-accent-primary); transform: translateY(-1px); box-shadow: var(--hsk-shadow-soft); }
.hsk-opt--selected { border-color: var(--qmf-accent-primary); background: color-mix(in srgb, var(--qmf-accent-primary) 8%, var(--qmf-bg-primary)); }
.hsk-opt__label { display: flex; align-items: center; justify-content: center; width: 30px; height: 30px; border-radius: 8px; background: var(--qmf-bg-secondary); font-weight: 700; font-size: 0.82rem; }
.hsk-opt__text { font-size: 0.92rem; line-height: 1.4; }
.hsk-opt__check { opacity: 0; transform: scale(0.6); transition: all 0.2s var(--hsk-ease-spring); color: var(--qmf-accent-primary); }
.hsk-opt--selected .hsk-opt__check { opacity: 1; transform: scale(1); }
.hsk-opt:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

@media (min-width: 640px) {
  .hsk-optgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
}

/* True/False */
.hsk-tf { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.hsk-tf__btn {
  padding: 14px; border: 1.5px solid var(--qmf-border); border-radius: var(--hsk-radius-md);
  background: var(--qmf-bg-primary); cursor: pointer; transition: all 0.15s;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.hsk-tf__btn--true.hsk-tf__btn--selected { border-color: var(--hsk-success); background: color-mix(in srgb, var(--hsk-success) 10%, #fff); }
.hsk-tf__btn--false.hsk-tf__btn--selected { border-color: var(--hsk-error); background: color-mix(in srgb, var(--hsk-error) 8%, #fff); }
.hsk-tf__label { font-weight: 700; font-size: 0.95rem; }
.hsk-tf__cn { font-size: 0.78rem; color: var(--qmf-text-muted); }

/* Fill blank */
.hsk-fb__line { margin: 0 0 12px; line-height: 2.6; font-size: 1.08rem; color: var(--hsk-text-primary); }
.hsk-fb__hint { font-size: 0.95rem; color: var(--qmf-accent-primary); font-weight: 600; margin-bottom: 10px; letter-spacing: 0.04em; }

/* Inline blank controls ({{fill}} / {{select}}) */
.hsk-blank { display: inline-flex; flex-direction: column; align-items: center; vertical-align: middle; margin: 0 4px; }
.hsk-blank__pinyin {
  font-size: 0.7rem; line-height: 1; color: var(--qmf-accent-primary); font-weight: 600;
  margin-bottom: 2px; letter-spacing: 0.03em;
}
.hsk-blank__input {
  width: 4.5em; min-width: 56px; text-align: center; padding: 4px 6px;
  border: none; border-bottom: 2px solid var(--qmf-accent-primary); background: transparent;
  font-size: 1.05rem; color: var(--hsk-text-primary); font-family: inherit;
  transition: border-color 0.15s, background 0.15s;
}
.hsk-blank__input:focus { outline: none; background: color-mix(in srgb, var(--qmf-accent-primary) 7%, transparent); }
.hsk-blank__input:disabled { color: var(--hsk-text-secondary); border-bottom-style: dashed; }
.hsk-blank__select {
  margin: 0 2px; padding: 4px 26px 4px 10px; border: 1.5px solid var(--qmf-accent-primary);
  border-radius: 999px; background: color-mix(in srgb, var(--qmf-accent-primary) 6%, #fff);
  color: var(--qmf-accent-primary); font-size: 0.95rem; font-weight: 600; font-family: inherit;
  cursor: pointer; vertical-align: middle;
}
.hsk-blank__select:focus { outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--qmf-accent-primary) 16%, transparent); }
.hsk-blank__select:disabled { opacity: 0.6; cursor: not-allowed; }

/* Fill / select sentence rows (RGTL, RGTC, 选词填空) */
.hsk-fill-row { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--hsk-border); }
.hsk-fill-row:last-child { border-bottom: none; }
.hsk-fill-row__num {
  flex-shrink: 0; width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 8px; background: rgba(120, 120, 128, 0.1); font-size: 0.82rem; font-weight: 700; color: var(--hsk-text-primary);
}
.hsk-fill-row__body { flex: 1; min-width: 0; }
.hsk-fill-row__line { margin: 0 0 6px; line-height: 2.4; font-size: 1.05rem; color: var(--hsk-text-primary); }
.hsk-fill-row__line:last-child { margin-bottom: 0; }
.hsk-fill-row__select-end { margin-top: 6px; }

/* Drag reorder */
.hsk-dr__hint, .hsk-ar__hint { font-size: 0.82rem; color: var(--qmf-text-muted); margin: 0 0 12px; }
.hsk-dr__bank, .hsk-dr__zone { display: flex; flex-wrap: wrap; gap: 8px; min-height: 48px; padding: 12px; border-radius: var(--hsk-radius-sm); border: 1.5px dashed var(--qmf-border); margin-bottom: 10px; }
.hsk-dr__zone { border-style: solid; background: color-mix(in srgb, var(--qmf-accent-primary) 5%, var(--qmf-bg-primary)); }
.hsk-dr__chip { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--qmf-border); background: var(--qmf-bg-primary); cursor: pointer; font-size: 0.95rem; transition: transform 0.12s; }
.hsk-dr__chip:hover { transform: scale(1.04); border-color: var(--qmf-accent-primary); }
.hsk-dr__chip--placed { background: color-mix(in srgb, var(--qmf-accent-primary) 12%, #fff); }
.hsk-dr__preview { padding: 12px; border-radius: var(--hsk-radius-sm); background: var(--qmf-bg-secondary); font-size: 1.1rem; text-align: center; min-height: 44px; }

/* Arrange */
.hsk-ar__list { display: flex; flex-direction: column; gap: 8px; }
.hsk-ar__item {
  display: grid; grid-template-columns: 32px 1fr auto; gap: 10px; align-items: center;
  padding: 12px 14px; border: 1.5px solid var(--qmf-border); border-radius: var(--hsk-radius-sm);
  background: var(--qmf-bg-primary); cursor: grab;
}
.hsk-ar__order { font-weight: 700; color: var(--qmf-accent-primary); }
.hsk-ar__actions { display: flex; gap: 4px; }
.hsk-ar__move { width: 28px; height: 28px; border: 1px solid var(--qmf-border); border-radius: 6px; background: var(--qmf-bg-secondary); cursor: pointer; }

/* Writing */
.hsk-write__label { display: block; font-size: 0.82rem; font-weight: 600; margin-bottom: 8px; color: var(--qmf-text-muted); }
.hsk-write__area {
  width: 100%; min-height: 160px; padding: 14px; border: 1.5px solid var(--qmf-border);
  border-radius: var(--hsk-radius-md); font-size: 1rem; line-height: 1.6; resize: vertical;
  font-family: inherit; background: var(--qmf-bg-primary);
}
.hsk-write__area:focus { border-color: var(--qmf-accent-primary); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--qmf-accent-primary) 15%, transparent); }
.hsk-write__count { text-align: right; font-size: 0.75rem; color: var(--qmf-text-muted); margin-top: 6px; }

/* Image choice / image bank */
.hsk-imggrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.hsk-imgopt {
  border: 1.5px solid var(--qmf-border); border-radius: var(--hsk-radius-md); padding: 8px;
  background: var(--qmf-bg-primary); cursor: pointer; transition: all 0.15s;
}
.hsk-imgopt--selected { border-color: var(--qmf-accent-primary); box-shadow: 0 4px 16px color-mix(in srgb, var(--qmf-accent-primary) 20%, transparent); }
.hsk-imgopt__wrap { position: relative; aspect-ratio: 4/3; border-radius: 8px; overflow: hidden; background: var(--qmf-bg-secondary); }
.hsk-imgopt__wrap img { width: 100%; height: 100%; object-fit: cover; }
.hsk-imgopt__fallback { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; font-weight: 700; color: var(--qmf-text-muted); }
.hsk-imgopt__label { display: block; text-align: center; font-weight: 700; margin-top: 6px; }

.hsk-imgmatch-block { margin-bottom: 8px; }
.hsk-imgmatch-block + .hsk-imgmatch-block { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--hsk-border); }
.hsk-imgmatch-block__title { font-size: 0.82rem; font-weight: 600; color: var(--hsk-text-secondary); margin-bottom: 12px; }

.hsk-imgbank { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 12px; margin-bottom: 18px; }
.hsk-imgbank__card { margin: 0; padding: 0; position: relative; border: 1px solid var(--hsk-border); border-radius: var(--hsk-radius-md); overflow: hidden; background: #fff; box-shadow: var(--hsk-shadow-soft); aspect-ratio: 4 / 3; }
.hsk-imgbank__img { width: 100%; height: 100%; object-fit: cover; display: block; border-radius: 0; }
.hsk-imgbank__card--noimg { background: repeating-linear-gradient(45deg, #f5f5f7, #f5f5f7 8px, #ececef 8px, #ececef 16px); }
.hsk-imgbank__card--noimg .hsk-imgbank__img { display: none; }
.hsk-imgbank__letter { position: absolute; top: 8px; left: 8px; min-width: 24px; height: 24px; margin: 0; display: inline-flex; align-items: center; justify-content: center; padding: 0 7px; border-radius: 8px; background: rgba(0, 0, 0, 0.6); color: #fff; font-size: 0.82rem; font-weight: 700; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }

.hsk-imgmatch__list { display: flex; flex-direction: column; }
.hsk-imgmatch { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--hsk-border); }
.hsk-imgmatch:last-child { border-bottom: none; }
.hsk-imgmatch__head { display: flex; align-items: center; gap: 10px; min-width: 0; }
.hsk-imgmatch__qn { width: 26px; height: 26px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; background: rgba(120, 120, 128, 0.1); font-size: 0.82rem; font-weight: 700; color: var(--hsk-text-primary); }
.hsk-imgmatch__picks { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.hsk-imgmatch__btn { width: 38px; height: 38px; border-radius: 9px; border: 1.5px solid var(--hsk-border); background: #fff; font-weight: 700; font-size: 0.88rem; color: var(--hsk-text-primary); cursor: pointer; transition: all 0.12s var(--hsk-ease-out); }
.hsk-imgmatch__btn:hover:not(:disabled) { border-color: var(--qmf-accent-primary); }
.hsk-imgmatch__btn--on { background: var(--qmf-accent-primary); color: #fff; border-color: var(--qmf-accent-primary); box-shadow: 0 2px 8px color-mix(in srgb, var(--qmf-accent-primary) 35%, transparent); }
.hsk-imgmatch__btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* Group shell */
.hsk-qgroup__header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.hsk-qgroup__badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px; background: color-mix(in srgb, var(--qmf-accent-primary) 12%, transparent); color: var(--qmf-accent-primary); font-size: 0.72rem; font-weight: 600; }
.hsk-qgroup__title { margin: 0; font-size: 1rem; font-weight: 700; }
.hsk-qgroup__list { display: flex; flex-direction: column; gap: 14px; }

/* Question block */
.hsk-qblock { padding: 14px; border: 1px solid var(--qmf-border); border-radius: var(--hsk-radius-md); background: var(--qmf-bg-primary); }
.hsk-qblock__head { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 12px; }
.hsk-qblock__num { display: inline-flex; align-items: center; justify-content: center; min-width: 28px; height: 28px; border-radius: 8px; background: var(--qmf-accent-primary); color: #fff; font-size: 0.78rem; font-weight: 700; flex-shrink: 0; }
.hsk-qblock__prompt { margin: 0; font-size: 0.9rem; line-height: 1.45; }

/* Answer bank */
.hsk-bank { padding: 14px; border-radius: var(--hsk-radius-md); background: var(--qmf-bg-secondary); border: 1px solid var(--qmf-border); margin-bottom: 16px; }
.hsk-bank__title { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--qmf-text-muted); margin-bottom: 10px; }
.hsk-bank__list { display: flex; flex-direction: column; gap: 6px; }
.hsk-bank__item { display: flex; gap: 8px; font-size: 0.88rem; line-height: 1.4; }
.hsk-bank__letter { font-weight: 700; color: var(--qmf-accent-primary); min-width: 20px; }

/* Text choice row */
.hsk-tc-row { display: grid; grid-template-columns: 36px 1fr 120px; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--qmf-border); }
.hsk-select { padding: 8px 10px; border: 1.5px solid var(--qmf-border); border-radius: 8px; background: var(--qmf-bg-primary); font-size: 0.88rem; }

/* RGLR */
.hsk-rglr { line-height: 2; font-size: 1.02rem; }
.hsk-rglr__para { margin: 0 0 12px; }
.hsk-rglr__slot { display: inline-flex; align-items: center; gap: 4px; margin: 0 2px; }
.hsk-rglr__slot-num { font-size: 0.72rem; color: var(--qmf-text-muted); }

/* Audio */
.hsk-audio { margin-bottom: 14px; }
.hsk-audio__btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px;
  border: none; border-radius: 999px; background: var(--qmf-accent-primary); color: #fff;
  font-weight: 600; font-size: 0.85rem; cursor: pointer;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--qmf-accent-primary) 30%, transparent);
}
.hsk-audio__btn:active { transform: scale(0.97); }

/* Compact audio inside image-match rows */
.hsk-imgmatch__head .hsk-audio { margin-bottom: 0; }
.hsk-imgmatch__head .hsk-audio__btn { padding: 8px; gap: 0; box-shadow: none; background: rgba(120, 120, 128, 0.1); color: var(--qmf-accent-primary); }
.hsk-imgmatch__head .hsk-audio__btn span { display: none; }
.hsk-imgmatch__head .hsk-audio__btn .hsk-icon { width: 1.15rem; height: 1.15rem; }

@media (max-width: 480px) {
  .hsk-imgmatch { flex-direction: column; align-items: stretch; gap: 8px; }
  .hsk-imgmatch__picks { justify-content: flex-start; }
  .hsk-tc-row { grid-template-columns: 28px 1fr; }
  .hsk-tc-row .hsk-select { grid-column: 1 / -1; }
}