/* ===== Quiz "Cho Từ → Chọn Nghĩa" — dùng nguyên style gốc yourhomework.net ===== */
:root{--yhw-quiz-scale:1}

/* Bỏ khung thẻ trắng mặc định của #yhStage cho riêng quiz (vì quiz tự có card) */
body.mode-quiz #yhStage{background:transparent!important;box-shadow:none!important;padding:0!important;min-height:0}
body.mode-quiz .yh-game-main{max-width:1000px}

/* Lưới Ant Design tối thiểu (trích từ trang gốc) */
.ant-row{display:flex;flex-flow:row wrap;min-width:0;box-sizing:border-box}
.ant-col{box-sizing:border-box;position:relative;max-width:100%;min-height:1px}
.ant-col-xs-24{flex:0 0 100%;max-width:100%}
@media (min-width:576px){.ant-col-sm-12{flex:0 0 50%;max-width:50%}}
.ant-card{box-sizing:border-box}
.ant-typography{margin:0}

/* ===== Quiz (CSS gốc) ===== */
.yhw-quiz-page{display:flex;flex-direction:column;gap:16px}
.yhw-quiz-header{text-align:center;margin-bottom:8px;position:relative}
.yhw-quiz-card{border-radius:16px;box-shadow:0 8px 24px rgba(15,35,95,.08);background:#fff;padding:0}
.yhw-quiz-card>.ant-card-body{padding:24px 24px 16px}
.yhw-quiz-main{display:flex;flex-direction:column;gap:24px}

.yhw-quiz-prompt{text-align:center;padding:16px 12px;border-radius:12px;background:#f7f9ff;display:flex;flex-direction:column;align-items:center;gap:8px;min-height:80px;justify-content:center}
.yhw-quiz-prompt h2{font-size:35px!important;margin:0!important}
.yhw-quiz-word-prompt-button{appearance:none;border:none;background:transparent;padding:0;margin:0;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.yhw-quiz-word-prompt-button:hover{opacity:.92}.yhw-quiz-word-prompt-button:active{transform:scale(.99)}
.yhw-quiz-prompt-audio{display:flex;flex-direction:column;align-items:center;gap:8px}
.yhw-quiz-audio-button{width:72px;height:72px;border-radius:999px;border:none;background:#1890ff;color:#fff;font-size:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 6px 16px rgba(24,144,255,.35)}
.yhw-quiz-audio-button:hover{filter:brightness(1.05)}

.yhw-quiz-grid{margin-top:8px}
.yhw-quiz-option{position:relative;border-radius:16px;padding:20px 16px;cursor:pointer;min-height:130px;display:flex;align-items:center;justify-content:center;overflow:hidden;transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out}
.yhw-quiz-option-slot-0{background:#e3f5ff}
.yhw-quiz-option-slot-1{background:#fff4d8}
.yhw-quiz-option-slot-2{background:#e6fffb}
.yhw-quiz-option-slot-3{background:#ffe6fb}
.yhw-quiz-option:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.08)}
.yhw-quiz-option--disabled{pointer-events:none}
.yhw-quiz-option--correct{background:#52c41a!important;color:#fff;animation:yhw-quiz-option-correct-bounce .28s ease-out}
.yhw-quiz-option--wrong{background:#ff4d4f!important;color:#fff;animation:yhw-quiz-option-wrong-shake .28s ease-out}
.yhw-quiz-option-body{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%;height:100%;justify-content:center}
.yhw-quiz-option--text .yhw-quiz-option-text{width:100%;height:100%;display:flex;align-items:center;justify-content:center;text-align:center}
.yhw-quiz-option-text{font-size:calc(28px*var(--yhw-quiz-scale,1));font-weight:600;text-align:center;padding:0 40px;white-space:normal;word-break:keep-all;overflow-wrap:normal}
.yhw-quiz-option-letter{position:absolute}
.yhw-quiz-option-letter-0{right:16px;bottom:16px}
.yhw-quiz-option-letter-1{left:16px;bottom:16px}
.yhw-quiz-option-letter-2{right:16px;top:16px}
.yhw-quiz-option-letter-3{left:16px;top:16px}
.yhw-quiz-option-letter-badge{width:26px;height:26px;border-radius:999px;background:#fa8c16;color:#fff;font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 2px rgba(255,255,255,.7)}
.yhw-quiz-option-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%)}
.yhw-quiz-option-icon-circle{width:36px;height:36px;border-radius:999px;border:2px solid rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff}

@keyframes yhw-quiz-option-correct-bounce{0%{transform:scale(1)}40%{transform:scale(1.06)}100%{transform:scale(1)}}
@keyframes yhw-quiz-option-wrong-shake{0%{transform:translateX(0)}20%{transform:translateX(-4px)}40%{transform:translateX(4px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}100%{transform:translateX(0)}}

@media (max-width:576px){
  .yhw-quiz-card>.ant-card-body{padding:16px 12px 12px}
  .yhw-quiz-option{min-height:64px;padding:8px}
  .yhw-quiz-option-text{font-size:calc(20px*var(--yhw-quiz-scale,1));padding:0 18px}
  .yhw-quiz-prompt h2{font-size:30px!important}
}