/* TIT.VN - CSS riêng cho Game & Trắc nghiệm. Không ảnh hưởng trang chủ/bài viết. */
.game-page{max-width:1120px;margin:0 auto}.breadcrumbs{display:flex;gap:7px;flex-wrap:wrap;align-items:center;margin:8px 0 18px;font-size:14px}.breadcrumbs a{text-decoration:none;color:#2563eb}.game-head{background:linear-gradient(135deg,#eef5ff,#f7efff);border:1px solid #e1e7f0;border-radius:22px;padding:24px;margin-bottom:20px}.game-head h1{margin:12px 0 8px;font-size:clamp(28px,4vw,42px)}.game-head p{margin:0;color:#5d6879}.game-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.game-meta span{background:#fff;border:1px solid #dfe6f1;border-radius:999px;padding:7px 11px;font-size:13px}.pill{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #dfe6f1;border-radius:999px;padding:7px 11px;font-weight:700}
.game-shell{padding:14px;background:linear-gradient(145deg,#fff,#f7faff);border:1px solid #dfe6f1;border-radius:24px;box-shadow:0 18px 55px rgba(31,54,99,.12)}.game-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap;background:linear-gradient(135deg,#172033,#27364f);color:#fff;border-radius:16px;padding:12px 15px}.game-title-mini,.game-stats{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.game-title-mini>span{font-size:24px}.game-stats>span{background:rgba(255,255,255,.1);padding:6px 9px;border-radius:999px;font-size:13px}.icon-btn{min-height:36px!important;padding:5px 10px!important;border:0!important;background:rgba(255,255,255,.12)!important;color:#fff!important;border-radius:10px!important;cursor:pointer}.game-stage{min-height:430px;padding:30px 16px;display:flex;flex-direction:column;justify-content:center;text-align:center}.game-stage button,.game-btn{font:inherit;transition:.15s}.game-stage button{min-height:44px;padding:.72rem 1rem;border:1px solid #ccd4df;border-radius:11px;background:#fff;cursor:pointer}.game-stage button:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(31,54,99,.08)}.game-stage button:disabled{cursor:default}.game-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 17px;border:1px solid #d8dfeb;background:#fff;border-radius:12px;font-weight:800;cursor:pointer;margin:4px;text-decoration:none;color:#172033}.game-btn.primary{background:linear-gradient(135deg,#2563eb,#8b5cf6);color:#fff;border:0}.match-cols{display:grid;grid-template-columns:1fr 1fr;gap:1rem;max-width:760px;margin:16px auto}.match-cols>div{display:grid;gap:.7rem}.selected{outline:3px solid #4b8df8!important}.correct{background:#d9f7e4!important;border-color:#28a745!important}.wrong{background:#ffe1e1!important;border-color:#dc3545!important}.game-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;max-width:650px;margin:1.2rem auto}.memory-grid{display:grid;gap:.6rem;margin:1rem auto}.memory-grid.memory-4{grid-template-columns:repeat(4,1fr);max-width:520px}.memory-grid.memory-6{grid-template-columns:repeat(6,1fr);max-width:650px}.memory-grid button{aspect-ratio:1;background:linear-gradient(135deg,#2563eb,#8b5cf6);color:#fff;border:0;font-size:clamp(18px,4vw,32px)}.memory-grid button.open,.memory-grid button.matched{background:#fff;color:#172033;border:2px solid #c9d8ff}.game-result{padding:2rem}.result-icon{font-size:74px}.result-score{font-size:64px;font-weight:900;color:#2563eb}.game-info{margin-top:22px;padding:22px;background:#fff;border:1px solid #e1e7f0;border-radius:18px}
.quiz-shell{background:#fff;border:1px solid #dfe6f1;border-radius:24px;box-shadow:0 18px 45px rgba(31,54,99,.10);padding:28px;margin:22px 0}.quiz-start,.quiz-result{text-align:center;padding:35px 10px}.quiz-start-icon{font-size:72px}.quiz-progress-head{display:flex;justify-content:space-between;gap:10px;font-weight:800}.quiz-progress{height:10px;background:#e9eef7;border-radius:99px;margin:12px 0 28px;overflow:hidden}.quiz-progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,#2563eb,#8b5cf6);transition:.25s}.quiz-question-text{text-align:center;font-size:clamp(23px,4vw,34px);margin:15px auto 24px;max-width:800px}.quiz-question-image{display:block;max-width:100%;max-height:280px;margin:0 auto;border-radius:16px}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:12px}.quiz-option{display:flex;align-items:center;text-align:left;gap:12px;min-height:62px;padding:12px 14px;border:1px solid #dce3ef;background:#fff;border-radius:14px;font-size:16px;cursor:pointer}.quiz-option b{display:grid;place-items:center;min-width:34px;height:34px;background:#eef4ff;border-radius:50%;color:#2563eb}.quiz-option.correct{background:#dcfce7;border-color:#22c55e}.quiz-option.wrong{background:#fee2e2;border-color:#ef4444}.quiz-feedback{margin:18px 0;padding:14px;border-radius:14px}.quiz-feedback.ok{background:#ecfdf5;color:#166534}.quiz-feedback.bad{background:#fff1f2;color:#9f1239}.quiz-actions{text-align:center}.quiz-result .result-score{font-size:72px}.quiz-intro{margin-top:24px;padding:22px;background:#fff;border:1px solid #e1e7f0;border-radius:18px}
@media(max-width:720px){.game-head{padding:18px}.game-stage{min-height:330px;padding:20px 8px}.game-options,.quiz-options{grid-template-columns:1fr}.match-cols{grid-template-columns:1fr 1fr;gap:.5rem}.match-cols button{padding:.65rem .4rem}.memory-grid.memory-6{grid-template-columns:repeat(4,1fr)}.quiz-shell{padding:18px 12px}.quiz-progress-head{font-size:13px}}


/* 5.4.0 - tăng độ rõ tương tác, âm thanh và trạng thái lỗi */
.match-col{display:grid;gap:.7rem}
.match-cols button.selected{outline:3px solid #2563eb!important;background:#eff6ff!important;box-shadow:0 0 0 4px rgba(37,99,235,.12)!important}
.match-cols button.correct{opacity:.7}
.game-help{margin-top:12px;color:#667085;font-weight:700}
.game-error{border:1px solid #fecaca;background:#fff7f7;border-radius:18px}
.quiz-progress-head{align-items:center;flex-wrap:wrap}
.quiz-sound-btn{border:1px solid #dbe3ef;background:#fff;border-radius:10px;min-width:40px;height:38px;cursor:pointer;font-size:18px}
.quiz-sound-btn:hover{background:#f3f7ff}
.quiz-option:disabled{cursor:default;opacity:1}
@media(max-width:520px){
  .match-cols{grid-template-columns:1fr 1fr}
  .match-cols button{font-size:14px;min-height:42px}
  .game-toolbar{align-items:flex-start}
  .game-stats{gap:6px}
}