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infinite;z-index:4}.leaderboard-list{display:flex;flex-direction:column;gap:.75rem;max-width:900px;margin:0 auto;width:100%}.daily-no-challenge{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:3rem 1rem;background:var(--bg-alt);border-radius:16px;border:2px dashed var(--border-color);color:var(--text-secondary);gap:1rem;min-height:250px}.daily-no-challenge i{margin-bottom:.5rem;opacity:.7}.daily-no-challenge p{margin:0;max-width:300px;line-height:1.5}.daily-question-title{text-align:center;font-size:1.4rem;margin:1rem 0;color:var(--text-headings)}.daily-description{text-align:center;max-width:600px;margin:0 auto 2rem auto;font-size:1rem}.daily-options-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:1.5rem}.daily-option-btn{background:var(--bg-alt);border:2px solid var(--border-color);padding:1.25rem;border-radius:14px;font-weight:600;color:var(--text-primary);cursor:pointer;transition:all .2s ease;text-align:center;display:flex;align-items:center;justify-content:center;min-height:60px;font-size:1rem}.daily-option-btn:hover{border-color:var(--primary-accent);background:var(--bg-content);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.daily-option-btn.selected{background:var(--primary-light);border-color:var(--primary-accent);color:var(--primary-accent);box-shadow:0 0 0 2px rgba(var(--primary-rgb),.2)}.daily-option-btn.correct{background:#dcfce7;border-color:#22c55e;color:#15803d}.daily-option-btn.incorrect{background:#fee2e2;border-color:#ef4444;color:#b91c1c;opacity:.7}.drag-drop-container{background:var(--bg-alt);padding:1.5rem;border-radius:16px;border:1px solid var(--border-color)}.instruction-text{text-align:center;margin-bottom:1.5rem;color:var(--text-secondary);display:flex;align-items:center;justify-content:center;gap:.5rem}.instruction-text i{width:20px;height:20px}.drag-drop-area{display:flex;gap:2rem;justify-content:center;align-items:flex-start;flex-wrap:wrap}.drag-column{display:flex;flex-direction:column;gap:.75rem;min-width:180px;flex:1;max-width:280px}.drag-column.left{align-items:flex-end}.drag-column.right{align-items:flex-start}.draggable-item{display:flex;align-items:center;gap:.75rem;padding:.875rem 1.25rem;background:var(--bg-content);border:2px solid var(--border-color);border-radius:12px;cursor:pointer;transition:all .2s ease;font-weight:600;color:var(--text-headings);position:relative;user-select:none}.draggable-item:hover{border-color:var(--primary-accent);background:var(--primary-bg);transform:translateX(-4px)}.draggable-item.selected{border-color:var(--primary-accent);background:var(--primary-bg);box-shadow:0 0 0 3px rgba(var(--primary-accent-rgb),.2)}.draggable-item.connected{border-color:#10b981;background:rgba(16,185,129,.1)}.draggable-item.matched{border-color:#10b981;background:rgba(16,185,129,.15);opacity:.8;pointer-events:none}.draggable-item.incorrect{border-color:#ef4444;background:rgba(239,68,68,.1);animation:shake .4s ease}.droppable-target{display:flex;align-items:center;gap:.75rem;padding:.875rem 1.25rem;background:var(--bg-content);border:2px dashed var(--border-color);border-radius:12px;cursor:pointer;transition:all .2s ease;color:var(--text-secondary);position:relative;user-select:none}.droppable-target:hover{border-color:var(--primary-accent);border-style:solid;background:var(--primary-bg);transform:translateX(4px)}.droppable-target.connected{border-color:#10b981;border-style:solid;background:rgba(16,185,129,.1);color:var(--text-headings)}.droppable-target.matched{border-color:#10b981;border-style:solid;background:rgba(16,185,129,.15);opacity:.8;pointer-events:none}.droppable-target.incorrect{border-color:#ef4444;border-style:solid;background:rgba(239,68,68,.1);animation:shake .4s ease}.connector-point{width:12px;height:12px;border-radius:50%;background:var(--border-color);flex-shrink:0;transition:all .2s ease}.draggable-item.selected .connector-point,.draggable-item:hover .connector-point{background:var(--primary-accent);box-shadow:0 0 8px rgba(var(--primary-accent-rgb),.5)}.droppable-target:hover .connector-point{background:var(--primary-accent);box-shadow:0 0 8px rgba(var(--primary-accent-rgb),.5)}.draggable-item.connected .connector-point,.droppable-target.connected .connector-point{background:#10b981;box-shadow:0 0 8px rgba(16,185,129,.5)}.connection-badge{position:absolute;top:-8px;right:-8px;width:20px;height:20px;background:#10b981;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;color:#fff;box-shadow:0 2px 6px rgba(16,185,129,.4)}.drag-column.right .connection-badge{left:-8px;right:auto}.disconnect-mini-btn{position:absolute;top:-6px;right:-6px;width:18px;height:18px;background:#ef4444;border:none;border-radius:50%;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.65rem;opacity:0;transition:opacity .2s ease}.draggable-item:hover .disconnect-mini-btn,.droppable-target:hover .disconnect-mini-btn{opacity:1}#submitDragDrop{width:100%;margin-top:1.5rem;padding:1rem;background:var(--bg-alt);border:2px solid var(--border-color);border-radius:12px;color:var(--text-secondary);font-weight:600;font-size:1rem;cursor:not-allowed;transition:all .3s ease}#submitDragDrop:not(:disabled){background:linear-gradient(135deg,#10b981 0,#059669 100%);border-color:#10b981;color:#fff;cursor:pointer}#submitDragDrop:not(:disabled):hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(16,185,129,.4)}#submitDragDrop.ready{animation:pulse-green 1.5s infinite}@keyframes pulse-green{0%,100%{box-shadow:0 0 0 0 rgba(16,185,129,.4)}50%{box-shadow:0 0 0 10px rgba(16,185,129,0)}}@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-5px)}80%{transform:translateX(5px)}}@media (max-width:600px){.drag-drop-area{flex-direction:column;gap:1.5rem}.drag-column{width:100%;max-width:none;align-items:stretch!important}.drag-column.left{order:1}.drag-column.right{order:2}.draggable-item,.droppable-target{justify-content:center}.draggable-item:hover{transform:none}.droppable-target:hover{transform:none}}.daily-feedback{margin-top:2rem;animation:slideUp .3s ease}.validation-feedback{padding:1rem;border-radius:12px;display:flex;align-items:flex-start;gap:1rem}.validation-feedback.positive{background:#dcfce7;color:#15803d;border:1px solid #86efac}.validation-feedback.negative{background:#fee2e2;color:#b91c1c;border:1px solid #fca5a5}#tab-challenges .content-card{padding:2rem!important;display:flex;flex-direction:column;height:100%;min-height:450px}#dailyChallengeContent,#duelArenaContent{flex:1;display:flex;flex-direction:column;width:100%}.daily-no-challenge{flex:1;width:100%;min-height:0;margin:0;box-sizing:border-box;display:flex;flex-direction:column;align-items:center;justify-content:center}.duel-intro-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;padding:1rem 0}.duel-visual{margin:1.5rem 0;width:100%;justify-content:center;display:flex;align-items:center;gap:1.5rem}.duel-betting-controls{margin:1.5rem 0;width:100%}.duel-actions{width:100%;justify-content:center;margin-top:auto}#tab-challenges .content-card h2{margin-bottom:1.5rem;font-size:1.5rem}@media (max-width:768px){#tab-challenges .content-card{min-height:auto;padding:1.5rem!important}.duel-visual{gap:1rem}}.duel-intro-state h3{margin-bottom:.5rem}.duel-intro-state p{margin-bottom:1.5rem}.duel-visual{margin:1rem 0 2rem 0}.duel-user-gems-display{margin-bottom:1.5rem}.duel-actions{display:flex;gap:1rem;justify-content:center;width:100%;max-width:500px;margin:2rem auto 0 auto}.btn-duel-primary,.btn-duel-secondary{flex:1;justify-content:center;min-width:180px;text-align:center;padding:.8rem 1.5rem}.duel-avatar-placeholder{width:80px;height:80px;min-width:80px;min-height:80px;border-radius:50%;background:var(--bg-card);border:4px solid var(--border-color);display:flex;align-items:center;justify-content:center;font-size:2rem;color:var(--text-muted);box-shadow:var(--shadow-sm)}.duel-avatar-placeholder i{width:32px;height:32px}.duel-avatar-placeholder.right{border-style:dashed;border-color:var(--text-muted);background:var(--bg-alt)}.duel-intro-state p{text-align:center;max-width:400px;margin-left:auto;margin-right:auto;line-height:1.6}@media (max-width:600px){.duel-actions{flex-direction:column;width:100%}.btn-duel-primary,.btn-duel-secondary{width:100%}}@media (max-width:768px){.shop-grid{grid-template-columns:1fr}.shop-item{padding:1.5rem}.shop-item-icon{width:64px;height:64px}.shop-item-icon i{width:28px;height:28px}.shop-item{width:100%;max-width:320px}}.shop-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1.5rem;padding:1rem 0}.shop-item{background:var(--bg-content);border:2px solid var(--border-color);border-radius:24px;padding:1.5rem;display:flex;flex-direction:column;align-items:center;text-align:center;transition:all .3s cubic-bezier(.4, 0, .2, 1);position:relative;overflow:hidden;width:auto;max-width:none}.shop-item:hover{transform:translateY(-8px);border-color:var(--primary-accent);box-shadow:0 12px 24px -8px rgba(0,0,0,.15)}.shop-item-emoji{font-size:4rem;margin-bottom:1rem;filter:drop-shadow(0 4px 8px rgba(0, 0, 0, .1));transition:transform .3s ease}.shop-item:hover .shop-item-emoji{transform:scale(1.1) rotate(5deg)}.shop-item-details h3{font-size:1.1rem;font-weight:800;margin:0 0 .5rem 0;color:var(--text-headings)}.shop-item-details p{font-size:.9rem;color:var(--text-secondary);margin:0 0 1.5rem 0;line-height:1.4}.btn-buy{margin-top:auto;background:var(--bg-body);color:var(--text-primary);border:2px solid var(--border-color);padding:.75rem 1.5rem;border-radius:16px;font-weight:800;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s ease;width:100%;font-size:1rem}.btn-buy:hover:not(:disabled){background:var(--primary-accent);border-color:var(--primary-accent);color:#fff;transform:scale(1.02)}.btn-buy:disabled{opacity:.5;cursor:not-allowed;background:var(--bg-alt)}.pp-social-grid-v2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;padding:1rem 0}.social-card-v2{background:var(--bg-content);border:1px solid var(--border-color);border-radius:16px;padding:1.5rem;display:flex;align-items:center;gap:1.25rem;transition:all .3s 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.social-icon-v2{background:#232323}.social-info-v2{flex:1;z-index:1;display:flex;flex-direction:column;gap:.25rem}.social-label-v2{font-size:.85rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.social-value-row{display:flex;align-items:center;justify-content:space-between;gap:.5rem;background:var(--bg-alt);padding:.5rem .75rem;border-radius:8px;border:1px solid var(--border-color);margin-top:.25rem}.social-username-v2{font-weight:700;color:var(--text-headings);font-family:"Fira Code",monospace;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}.btn-copy-v2{background:0 0;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .2s}.btn-copy-v2:hover{background:rgba(0,0,0,.05);color:var(--primary-accent)}.btn-copy-v2 i{width:16px;height:16px}.social-status-v2{font-style:italic;color:var(--text-muted);font-size:.9rem;display:flex;align-items:center;gap:.5rem;margin-top:.25rem}.social-status-v2::before{content:"";display:block;width:8px;height:8px;border-radius:50%;background:var(--text-muted);opacity:.5}.social-card-v2.empty{opacity:.8;filter:grayscale(.5)}.social-card-v2.empty:hover{opacity:1;filter:grayscale(0)}.info-grid-container{display:grid;grid-template-columns:1fr 1fr;gap:2rem;padding:.5rem}@media (max-width:900px){.info-grid-container{grid-template-columns:1fr}}.info-card-modern{background:var(--bg-card);border-radius:24px;border:1px solid var(--border-color);overflow:hidden;transition:all .4s cubic-bezier(.175, .885, .32, 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h3{margin:0;font-size:1.1rem;font-weight:700;color:var(--text-primary)}.icon-box{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.2rem}.xp-icon{background:rgba(255,193,7,.15);color:#ffc107}.points-icon{background:rgba(99,102,241,.15);color:var(--primary-accent)}.rank-icon{background:rgba(239,68,68,.15);color:#ef4444}.shop-icon{background:rgba(168,85,247,.15);color:#a855f7}.studs-icon{background:rgba(16,185,129,.15);color:#10b981}.info-card-body{padding:1.5rem;flex:1}.xp-list-modern{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:1rem}.xp-list-modern li{display:flex;align-items:center;gap:1rem}.xp-badge{background:var(--bg-body);border:1px solid var(--border-color);color:var(--primary-color);font-weight:700;padding:.4rem .8rem;border-radius:8px;font-size:.9rem;min-width:70px;text-align:center}.xp-details{display:flex;flex-direction:column}.xp-details strong{color:var(--text-primary);font-size:.95rem}.xp-details small{color:var(--text-secondary);font-size:.8rem}.grades-timeline{position:relative;padding-left:1rem;border-left:2px solid var(--border-color);display:flex;flex-direction:column;gap:1.5rem}.grade-step{position:relative;padding-left:1.5rem}.grade-dot{position:absolute;left:-.45rem;top:.2rem;width:12px;height:12px;border-radius:50%;border:2px solid var(--bg-card)}.grade-dot.novice{background:#94a3b8}.grade-dot.apprentice{background:#60a5fa}.grade-dot.initiate{background:#34d399}.grade-dot.developer{background:#a78bfa}.grade-dot.expert{background:#fbbf24}.grade-content{display:flex;flex-direction:column}.grade-content strong{color:var(--text-primary)}.grade-content small{color:var(--text-secondary)}.tip-text{background:var(--bg-body);padding:1rem;border-radius:12px;margin-bottom:1rem;font-size:.9rem;line-height:1.5;color:var(--text-secondary);border-left:4px solid var(--primary-color)}.tip-text:last-child{margin-bottom:0}@media (max-width:768px){.info-grid-container{grid-template-columns:1fr}}.grade-step.active-grade{background:linear-gradient(to right,rgba(59,130,246,.1),transparent);border-radius:8px;border-left:4px solid var(--primary-color,#3b82f6);padding:8px 12px;margin:-5px -13px}.grade-step.active-grade .grade-dot{transform:scale(1.3);box-shadow:0 0 0 4px var(--bg-card);z-index:2}.grade-step.active-grade strong{color:var(--primary-color,#3b82f6);font-weight:800;font-size:1.05em;text-shadow:none}[data-theme=light] .grade-step.active-grade{background:rgba(59,130,246,.08);box-shadow:0 2px 8px rgba(0,0,0,.05)}@keyframes luckyReveal{0%{transform:scale(.8) rotate(-5deg);opacity:0}50%{transform:scale(1.1) rotate(3deg)}100%{transform:scale(1) rotate(0);opacity:1}}#luckyBoxAnimationModal .slot-item{transition:transform .3s ease,box-shadow .3s ease}#luckyBoxAnimationModal .slot-item.winner{animation:winnerPulse 1s ease infinite;animation-delay:3.8s}@keyframes winnerPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.05)}}.item-icon.effect.sparkle{background:linear-gradient(135deg,rgba(168,85,247,.2) 0,rgba(236,72,153,.2) 100%);color:#a855f7}.xp-total-info{margin-top:1rem;padding:.75rem 1rem;background:linear-gradient(135deg,rgba(16,185,129,.1),rgba(16,185,129,.05));border-radius:10px;border:1px dashed rgba(16,185,129,.3);text-align:center}.xp-total-info small{color:var(--text-secondary);font-size:.9rem}.xp-total-info strong{color:#10b981}.grade-step.final-grade .grade-dot.certified{background:linear-gradient(135deg,#10b981 0,#059669 100%);box-shadow:0 0 10px rgba(16,185,129,.4)}.grade-step.final-grade .grade-content strong{color:#10b981}.points-badge,.shop-badge,.studs-badge{font-weight:700;padding:.5rem .9rem;border-radius:12px;font-size:.9rem;display:inline-flex;align-items:center;gap:.4rem;min-width:70px;justify-content:center;background:var(--bg-content);border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.points-badge{color:var(--primary-accent)}.shop-badge,.studs-badge{color:#4b5563}.shop-badge i,.studs-badge i{width:14px;height:14px;color:#9ca3af}.shop-page{padding:2rem!important}.shop-header-v2{display:flex;align-items:center;justify-content:space-between;margin-bottom:2.5rem;padding-bottom:1.5rem;border-bottom:2px solid var(--border-color)}.shop-header-left{display:flex;align-items:center;gap:1rem}.shop-title-icon{width:56px;height:56px;background:linear-gradient(135deg,var(--primary-accent) 0,#7c3aed 100%);color:#fff;border-radius:16px;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(99,102,241,.3)}.shop-title-icon i{width:28px;height:28px}.shop-header-left h2{margin:0;font-size:1.75rem;font-weight:800;background:linear-gradient(135deg,var(--primary-accent),#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.shop-header-left p{margin:.25rem 0 0 0;color:var(--text-secondary);font-size:.95rem}.shop-header-right{display:flex;align-items:center;gap:1rem}.balance-card-v2{background:linear-gradient(135deg,#f8fafc 0,#e2e8f0 100%);border:2px solid var(--border-color);border-radius:16px;padding:.75rem 1.25rem;display:flex;flex-direction:column;align-items:center;min-width:120px;box-shadow:var(--shadow-sm)}[data-theme=dark] .balance-card-v2{background:linear-gradient(135deg,#1e293b 0,#334155 100%)}.balance-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);font-weight:600}.balance-value{display:flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:800;color:#4b5563}.balance-value i{width:24px;height:24px;color:#9ca3af}.shop-category{margin-bottom:2.5rem}.category-header{display:flex;align-items:center;gap:1rem;margin-bottom:1.25rem}.category-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center}.category-icon 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.8rem;border-radius:20px;font-size:.85rem;font-weight:600}.empty-icon{width:64px;height:64px;background:var(--bg-content);border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:1rem}.empty-icon i{width:32px;height:32px;color:var(--text-muted)}@media (max-width:768px){.shop-header-v2{flex-direction:column;gap:1.5rem;text-align:center;align-items:center}.shop-header-left{flex-direction:column;align-items:center}.shop-header-left>div{text-align:center}.shop-header-left h2,.shop-header-left p{text-align:center}.shop-header-right{flex-direction:column;align-items:center;width:100%}.balance-card-v2{width:100%;max-width:200px}.shop-grid{grid-template-columns:1fr}.shop-category{text-align:center}.category-header{flex-direction:column;align-items:center;text-align:center}.category-info{text-align:center}.category-info h3,.category-info 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var(--border-color);color:var(--text-secondary);padding:.5rem 1rem;border-radius:10px;font-weight:600;font-size:.85rem;cursor:pointer;display:flex;align-items:center;gap:.4rem;transition:all .2s ease;width:100%;justify-content:center}.btn-inv-action i{width:16px;height:16px}.btn-inv-action:hover:not(:disabled){background:var(--bg-body);border-color:var(--primary-accent);color:var(--primary-accent)}.btn-inv-action:disabled{opacity:.5;cursor:not-allowed}.btn-inv-action.primary{background:var(--primary-accent);border-color:var(--primary-accent);color:#fff}.btn-inv-action.primary:hover{background:var(--primary-color);transform:translateY(-2px);box-shadow:0 4px 12px rgba(99,102,241,.3)}.btn-inv-action.extend{background:linear-gradient(135deg,#10b981 0,#059669 100%);border-color:#059669;color:#fff}.btn-inv-action.extend:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(16,185,129,.3)}.inv-status-badge{display:inline-flex;align-items:center;gap:.35rem;padding:.35rem 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h4{font-size:1rem}}.duel-player-column{display:flex;flex-direction:column;align-items:center;gap:.5rem}.duel-player-level{font-size:.8rem;color:var(--text-secondary)}.duel-bet-info{background:rgba(168,85,247,.1);color:#a855f7;padding:.75rem 1.5rem;border-radius:12px;font-weight:600;display:flex;align-items:center;gap:.75rem;margin:1.5rem 0;justify-content:center}.duel-bet-info i{width:18px;height:18px}.duel-potential-win{color:#22c55e;font-weight:700}.duel-countdown{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px;gap:1rem}.countdown-number{font-size:6rem;font-weight:900;color:var(--primary-accent);text-shadow:0 4px 20px rgba(59,130,246,.3);animation:pulse .5s ease-in-out}.duel-countdown p{font-size:1.2rem;color:var(--text-secondary)}.duel-battle-screen{display:flex;flex-direction:column;gap:1.5rem}.duel-battle-header{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:var(--bg-alt);border-radius:16px;gap:1rem}.duel-player-score{display:flex;align-items:center;gap:.75rem}.duel-player-score.opponent{flex-direction:row-reverse}.score-avatar{width:48px;height:48px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;border:3px solid var(--primary-accent);overflow:hidden;font-weight:700;color:var(--primary-accent)}.score-avatar img{width:100%;height:100%;object-fit:cover}.score-avatar.opponent{border-color:#ef4444;background:rgba(239,68,68,.1);color:#ef4444}.score-info{display:flex;flex-direction:column;gap:.25rem}.score-name{font-weight:600;font-size:.9rem;color:var(--text-primary)}.score-points{font-size:1.5rem;font-weight:800;color:var(--primary-accent);transition:all .3s 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var(--border-color);border-radius:16px;padding:2rem}.duel-question-text{font-size:1.2rem;font-weight:600;text-align:center;margin-bottom:1.5rem;color:var(--text-primary);line-height:1.5}.duel-options-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.duel-option-btn{display:flex;align-items:center;gap:.75rem;padding:1rem 1.25rem;background:var(--bg-alt);border:2px solid var(--border-color);border-radius:12px;cursor:pointer;transition:all .2s ease;text-align:left}.duel-option-btn:hover:not(:disabled){border-color:var(--primary-accent);background:var(--primary-light);transform:translateY(-2px)}.duel-option-btn:disabled{cursor:default}.duel-option-btn.correct{background:rgba(34,197,94,.15);border-color:#22c55e}.duel-option-btn.correct .option-letter{background:#22c55e;color:#fff}.duel-option-btn.incorrect{background:rgba(239,68,68,.15);border-color:#ef4444}.duel-option-btn.incorrect .option-letter{background:#ef4444;color:#fff}.option-letter{width:32px;height:32px;border-radius:8px;background:var(--bg-content);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;color:var(--text-secondary);flex-shrink:0}.option-text{font-weight:500;color:var(--text-primary);font-size:.95rem}.duel-answer-status{display:flex;justify-content:space-between;padding:1rem;background:var(--bg-alt);border-radius:12px}.answer-indicator{display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:var(--text-secondary);padding:.5rem 1rem;border-radius:8px;transition:all .3s ease}.answer-indicator i{width:18px;height:18px}.answer-indicator.correct{color:#22c55e;background:rgba(34,197,94,.1)}.answer-indicator.incorrect{color:#ef4444;background:rgba(239,68,68,.1)}.answer-indicator.timeout{color:#f59e0b;background:rgba(245,158,11,.1)}.duel-result-screen{display:flex;flex-direction:column;align-items:center;padding:2rem 1rem;gap:1.5rem}.result-banner{text-align:center}.result-banner h2{font-size:2rem;margin-bottom:.5rem}.duel-result-screen.victory .result-banner h2{color:#22c55e}.duel-result-screen.defeat .result-banner h2{color:#ef4444}.duel-result-screen.draw .result-banner h2{color:#f59e0b}.result-scores{display:flex;align-items:center;gap:2rem;padding:1.5rem;background:var(--bg-alt);border-radius:16px;width:100%;max-width:500px;justify-content:center}.result-player{display:flex;flex-direction:column;align-items:center;gap:.5rem;position:relative}.result-avatar{width:64px;height:64px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;border:3px solid var(--primary-accent);overflow:hidden;font-size:1.5rem;font-weight:700;color:var(--primary-accent)}.result-avatar img{width:100%;height:100%;object-fit:cover}.result-avatar.opponent{border-color:#ef4444;background:rgba(239,68,68,.1);color:#ef4444}.result-player.winner .result-avatar{border-color:#fbbf24;box-shadow:0 0 20px rgba(251,191,36,.4)}.result-name{font-weight:600;color:var(--text-primary)}.result-score{font-size:1.25rem;font-weight:800;color:var(--text-secondary)}.result-player.winner .result-score{color:#22c55e}.winner-badge{position:absolute;top:-15px;font-size:1.5rem;animation:bounce 1s ease infinite}.result-vs{font-size:1.2rem;font-weight:800;color:var(--text-muted)}.result-rewards{display:flex;align-items:center;gap:.5rem;padding:1rem 2rem;background:linear-gradient(135deg,rgba(168,85,247,.1) 0,rgba(139,92,246,.1) 100%);border:1px solid rgba(168,85,247,.3);border-radius:12px;font-weight:700;color:#a855f7;font-size:1.1rem}.result-rewards i{width:20px;height:20px}.result-stats{display:flex;gap:2rem}.result-stats .stat{display:flex;flex-direction:column;align-items:center;gap:.25rem}.result-stats .stat-label{font-size:.85rem;color:var(--text-secondary)}.result-stats .stat-value{font-weight:700;color:var(--text-primary)}.result-actions{display:flex;gap:1rem;margin-top:1rem}@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}.animate-pulse{animation:pulse 1.5s ease-in-out infinite}.animate-bounce{animation:bounce .3s ease}.animate-fade-in{animation:fadeIn .3s ease}@media (max-width:768px){.duel-battle-header{flex-direction:column;gap:1rem}.duel-player-score{width:100%;justify-content:center}.duel-player-score.opponent{flex-direction:row}.duel-options-grid{grid-template-columns:1fr}.duel-question-container{padding:1.5rem}.result-scores{flex-direction:column;gap:1rem}.result-vs{order:0}.result-player.user{order:-1}}