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(max-width: 768px){.ai-chat{display:grid;justify-items:center;margin-top:20vh;padding:0}.ai-chat>h2{margin-top:0;font-size:22px;user-select:none;-webkit-user-select:none;-ms-user-select:none}.ai-chat>p{margin-top:-10px;width:93%;text-align:center;font-size:18px;color:#575757;user-select:none;-webkit-user-select:none;-ms-user-select:none}.query{height:60px;width:90vw;position:fixed;bottom:20px;border-radius:15px;padding-left:10px;display:flex;align-items:center;justify-content:right;box-shadow:0 0 10px #2661b2a8;margin-top:25px}.query>input{width:100%;border:transparent;font-size:20px}.query>input:focus{outline:none}.query>button{width:30%;font-size:16px}.query>button>img{height:15px;margin-right:5px}.ai-chat>.quick-pic{position:fixed;top:auto;bottom:100px;left:30px;width:calc(100vw - 60px)}.history-sec{max-height:calc(100vh - 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ease;word-wrap:break-word}}.shiny-text{color:#111;font-size:18px;background:linear-gradient(120deg,#111 40%,#bbb,#111 60%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block;animation:shine 4s linear infinite;margin:10px 20px}@keyframes shine{0%{background-position:100%}to{background-position:-100%}}.shiny-text.disabled{animation:none}.fp-page{padding:32px 36px 100px;max-width:980px;margin:0 auto;position:relative}.fp-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;margin-top:120px;gap:16px;color:var(--text-secondary)}.fp-spinner{width:52px;height:52px;border:5px solid var(--border-light);border-top-color:#2661b2;border-radius:50%;animation:fp-spin .8s linear infinite}@keyframes 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28px}.fp-stat-value{font-size:1.25rem;font-weight:700;color:var(--text-primary)}.fp-stat-label{font-size:.82rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;font-weight:600}.fp-stat-divider{width:1px;height:44px;background:var(--border-light);flex-shrink:0}.fp-section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.fp-section-header h3{font-size:1.35rem;font-weight:700;color:var(--text-primary);margin:0;display:flex;align-items:center;gap:12px}.fp-friend-count{background:#2661b221;color:#2661b2;font-size:.95rem;font-weight:700;padding:4px 14px;border-radius:999px}.fp-add-btn{display:flex;align-items:center;gap:8px;padding:13px 26px;background:#2661b2;color:#fff;border:none;border-radius:14px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 14px #2661b24d}.fp-add-btn:hover{background:#1e50a0;transform:translateY(-1px);box-shadow:0 6px 20px #2661b266}.fp-add-btn span{font-size:1.3rem;line-height:1}.fp-friend-list{display:flex;flex-direction:column;gap:12px}.fp-friend-card{display:flex;align-items:center;gap:20px;padding:22px 28px;background:var(--bg-card);border:2px solid var(--border-light);border-radius:20px;cursor:pointer;transition:all .25s ease;position:relative;overflow:hidden}.fp-friend-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:#2661b2;transform:scaleY(0);border-radius:0 4px 4px 0;transition:transform .2s ease}.fp-friend-card:hover:before{transform:scaleY(1)}.fp-friend-card:hover{border-color:#2661b24d;box-shadow:0 6px 24px #2661b21f;transform:translate(4px)}.fp-card-left{display:flex;align-items:center;gap:18px;flex-shrink:0}.fp-card-rank{font-size:2rem;min-width:54px;text-align:center;font-weight:700}.rank-normal.fp-card-rank{font-size:1.2rem}.fp-card-avatar{border-radius:50%;border:2px solid var(--border-light);overflow:hidden;flex-shrink:0}.fp-card-info{flex:1;min-width:0}.fp-card-name{font-size:1.15rem;font-weight:700;color:var(--text-primary);margin:0 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.fp-card-username{font-size:.92rem;color:var(--text-secondary);margin:0}.fp-card-stats{display:flex;gap:28px;flex-shrink:0}.fp-card-stat{display:flex;flex-direction:column;align-items:center;gap:1px}.fp-card-stat-val{font-size:1.3rem;font-weight:700;color:var(--text-primary);line-height:1}.fp-card-stat-lbl{font-size:.88rem;color:var(--text-secondary)}.fp-card-arrow{font-size:2rem;color:var(--text-secondary);flex-shrink:0;margin-left:6px;transition:transform .2s ease}.fp-friend-card:hover .fp-card-arrow{transform:translate(4px);color:#2661b2}.fp-list-loading{display:flex;flex-direction:column;gap:12px}.fp-skeleton{height:100px;border-radius:20px;background:linear-gradient(90deg,var(--bg-card) 25%,var(--bg-secondary) 50%,var(--bg-card) 75%);background-size:200% 100%;animation:fp-shimmer 1.4s infinite}@keyframes fp-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.fp-empty{display:flex;flex-direction:column;align-items:center;text-align:center;padding:60px 20px;gap:12px}.fp-empty-icon{font-size:5rem;margin-bottom:8px}.fp-empty h4{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0}.fp-empty p{color:var(--text-secondary);margin:0;font-size:1.05rem;max-width:380px}.fp-modal-overlay{position:fixed;inset:0;background:#0006;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:9999;display:flex;align-items:center;justify-content:center;padding:16px}.fp-modal{background:var(--bg-card, #fff);border:1.5px solid var(--border-light, #e5e7eb);border-radius:16px;padding:24px 22px;width:100%;max-width:360px;box-shadow:0 12px 40px #0000002e;animation:fp-modal-in .22s cubic-bezier(.34,1.2,.64,1)}@keyframes fp-modal-in{0%{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}.fp-modal h3{font-size:1rem;font-weight:700;color:var(--text-primary, #111827);margin:0 0 4px}.fp-modal-sub{font-size:.82rem;color:var(--text-secondary);margin:0 0 14px}.fp-modal-input{width:100%;padding:10px 14px;border:1.5px solid var(--border-light, #e5e7eb);border-radius:10px;background:var(--bg-secondary, #f8fafc);color:var(--text-primary, #111827);font-size:.9rem;outline:none;box-sizing:border-box;transition:border-color .2s;height:42px;font-family:inherit}.fp-modal-input:focus{border-color:#2661b299;box-shadow:0 0 0 3px #2661b214;background:#fff}.fp-modal-input::placeholder{font-size:.88rem;color:var(--text-secondary, #9ca3af)}.fp-modal-error{color:#e74c3c;font-size:.82rem;margin:8px 0 0}.fp-modal-actions{display:flex;gap:8px;margin-top:14px}.fp-drawer-overlay{position:fixed;inset:0;background:#00000073;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:9999;display:flex;align-items:flex-end;justify-content:center}@media (min-width: 600px){.fp-drawer-overlay{align-items:center;justify-content:flex-end}}.fp-drawer{background:var(--bg-card);border:2px solid var(--border-light);width:100%;max-width:500px;border-radius:28px 28px 0 0;padding:36px 36px 48px;position:relative;animation:fp-drawer-up .3s cubic-bezier(.34,1.3,.64,1);box-shadow:0 -8px 40px #0000002e}@media (min-width: 600px){.fp-drawer{height:100%;max-height:100%;border-radius:0;border-right:none;animation:fp-drawer-right .3s cubic-bezier(.34,1.1,.64,1)}}@keyframes fp-drawer-up{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes fp-drawer-right{0%{transform:translate(100%)}to{transform:translate(0)}}.fp-drawer-close{position:absolute;top:20px;right:20px;background:var(--bg-secondary);border:none;color:var(--text-secondary);width:42px;height:42px;border-radius:50%;cursor:pointer;font-size:1.2rem;display:flex;align-items:center;justify-content:center;transition:background .2s}.fp-drawer-close:hover{background:var(--border-light);color:var(--text-primary)}.fp-drawer-header{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding-bottom:20px;border-bottom:2px solid var(--border-light);margin-bottom:20px}.fp-drawer-avatar{border:3px solid rgba(38,97,178,.3);border-radius:50%;padding:3px;background:var(--bg-secondary);margin-bottom:8px}.fp-drawer-name{font-size:1.6rem;font-weight:800;color:var(--text-primary);margin:0}.fp-drawer-username{font-size:1rem;color:var(--text-secondary);margin:0}.fp-drawer-stats{display:flex;align-items:center;justify-content:center;background:var(--bg-secondary);border-radius:16px;padding:18px 32px;margin-bottom:24px;gap:0}.fp-drawer-stat{display:flex;flex-direction:column;align-items:center;gap:4px;padding:0 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18px;background:#2661b2;color:#fff;border:none;border-radius:10px;font-size:.88rem;font-weight:600;cursor:pointer;transition:all .18s ease;box-shadow:0 3px 10px #2661b240;font-family:inherit}.fp-btn-primary:hover:not(:disabled){background:#1e50a0;transform:translateY(-1px);box-shadow:0 5px 16px #2661b259}.fp-btn-primary:disabled{opacity:.6;cursor:not-allowed}.fp-btn-ghost{flex:1;padding:10px 18px;background:var(--bg-secondary, #f3f4f6);color:var(--text-secondary, #6b7280);border:1.5px solid var(--border-light, #e5e7eb);border-radius:10px;font-size:.88rem;font-weight:600;cursor:pointer;transition:all .18s ease;font-family:inherit}.fp-btn-ghost:hover{background:var(--border-light, #e5e7eb);color:var(--text-primary, #374151)}.fp-btn-danger{width:100%;padding:10px 18px;background:#fee2e2;color:#dc2626;border:1.5px solid #fecaca;border-radius:10px;font-size:.88rem;font-weight:600;cursor:pointer;transition:all .18s 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#64748b);margin:0}.st-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:60vh;gap:14px}.st-loading-ring{width:36px;height:36px;border:3px solid #e2e8f0;border-top-color:#2c5de5;border-radius:50%;animation:st-spin .8s linear infinite}@keyframes st-spin{to{transform:rotate(360deg)}}.st-loading p{font-size:.9rem;color:#64748b}.st-profile-card{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;background:#fff;border:1.5px solid #e2e8f0;border-radius:16px;box-shadow:0 1px 4px #0000000f}.st-profile-left{display:flex;align-items:center;gap:16px}.st-avatar-shell{position:relative;flex-shrink:0}.st-avatar-img{width:64px;height:64px;border-radius:50%;object-fit:cover;display:block;border:2px solid #e2e8f0}.st-avatar-initials{width:64px;height:64px;border-radius:50%;background:linear-gradient(135deg,#2c5de5,#7b3fe4);color:#fff;font-size:1.3rem;font-weight:700;display:flex;align-items:center;justify-content:center;letter-spacing:.02em;-webkit-user-select:none;user-select:none}.st-avatar-cam{position:absolute;bottom:0;right:0;width:22px;height:22px;border-radius:50%;background:#fff;border:1.5px solid #e2e8f0;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#64748b;padding:3px;transition:background .15s,color .15s,border-color .15s;box-shadow:0 1px 4px #0000001f}.st-avatar-cam:hover{background:#eff6ff;color:#2c5de5;border-color:#bfdbfe}.st-avatar-cam svg{width:100%;height:100%}.st-profile-meta{display:flex;flex-direction:column;gap:3px}.st-profile-name{font-size:1rem;font-weight:700;color:#0f172a;line-height:1.2}.st-profile-username{font-size:.8rem;color:#64748b;font-weight:500}.st-account-badge{display:inline-flex;align-items:center;gap:5px;padding:2px 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.st-row-ico{background:#eff6ff;color:#2c5de5}.st-row-body{flex:1;display:flex;flex-direction:column;gap:1px;min-width:0}.st-row-lbl{font-size:13px;font-weight:600;color:#1e293b}.st-row-val{font-size:12px;color:#94a3b8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.st-row-val em{font-style:normal;color:#cbd5e1}.st-row-chevron{color:#cbd5e1;display:flex;align-items:center;flex-shrink:0;transition:color .12s,transform .15s}.st-row-chevron svg{width:16px;height:16px}.st-row:hover:not(.st-row--dim) .st-row-chevron{color:#2c5de5;transform:translate(2px)}.st-row-tag{flex-shrink:0;display:flex;align-items:center}.st-danger-section{border:1.5px solid #fecaca;border-radius:16px;overflow:hidden;background:#fff;box-shadow:0 1px 4px #dc26260f}.st-danger-head{padding:14px 20px;border-bottom:1.5px solid #fecaca;background:#fff5f5}.st-danger-title{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#dc2626;margin:0 0 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#bbf7d0;border-radius:10px;font-size:.97rem;color:#15803d;line-height:1.55}.quiz-submit-area{display:flex;flex-direction:column;align-items:center;gap:12px;padding:24px 0}.quiz-submit-hint{font-size:.9rem;color:var(--text-secondary);margin:0}.quiz-submit-btn{padding:16px 48px;background:#2661b2;color:#fff;border:none;border-radius:14px;font-size:1.1rem;font-weight:700;cursor:pointer;transition:all .2s;box-shadow:0 4px 16px #2661b259;font-family:inherit}.quiz-submit-btn:hover:not(:disabled){background:#1e50a0;transform:translateY(-2px);box-shadow:0 6px 24px #2661b273}.quiz-submit-btn:disabled{opacity:.45;cursor:not-allowed}.results-page{max-width:640px;margin:0 auto;padding:20px 28px 80px}.results-card{background:var(--bg-card);border:2px solid var(--border-light, #e5e7eb);border-radius:24px;padding:40px 36px;display:flex;flex-direction:column;align-items:center;gap:24px;margin-top:12px;box-shadow:0 4px 30px #0000000f}.results-title{font-size:1.8rem;font-weight:800;color:var(--text-primary);margin:0;text-align:center}.score-ring-wrap{position:relative;width:160px;height:160px}.score-ring{width:100%;height:100%;transform:rotate(-90deg)}.score-ring-bg{fill:none;stroke:var(--border-light, #e5e7eb);stroke-width:10}.score-ring-fill{fill:none;stroke:url(#scoreGrad);stroke:#2661b2;stroke-width:10;stroke-linecap:round;transition:stroke-dasharray .8s cubic-bezier(.4,0,.2,1)}.score-ring-inner{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.score-pct{font-size:2rem;font-weight:800;color:var(--text-primary);line-height:1}.score-grade{font-size:.85rem;font-weight:600;color:var(--text-secondary);margin-top:4px}.results-stats{width:100%;display:flex;flex-direction:column;gap:0;border:2px solid var(--border-light, #e5e7eb);border-radius:14px;overflow:hidden}.result-row{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-bottom:1px solid var(--border-light, #e5e7eb);font-size:.97rem;color:var(--text-secondary)}.result-row:last-child{border-bottom:none}.result-val{font-weight:700;color:var(--text-primary)}.results-written-note{width:100%;background:#f5f3ff;border:1.5px solid #ddd6fe;border-radius:12px;padding:14px 18px;font-size:.9rem;color:#6d28d9;line-height:1.5;text-align:center}.results-trophies{width:100%}.results-trophies h3{font-size:1.1rem;font-weight:700;color:var(--text-primary);margin:0 0 12px}.trophy-row{display:flex;align-items:center;gap:14px;padding:12px 16px;background:var(--bg-secondary);border-radius:12px;margin-bottom:8px}.trophy-icon{font-size:1.6rem}.trophy-name{font-weight:700;color:var(--text-primary);font-size:.97rem;display:block}.trophy-desc{font-size:.85rem;color:var(--text-secondary);display:block}.results-actions{display:flex;gap:12px;width:100%}.res-btn{flex:1;padding:15px 24px;border-radius:14px;font-size:1rem;font-weight:600;cursor:pointer;border:none;transition:all .2s;font-family:inherit;text-align:center}.res-btn--retry{background:#2661b2;color:#fff;box-shadow:0 4px 14px #2661b24d}.res-btn--retry:hover{background:#1e50a0;transform:translateY(-1px)}.res-btn--back{background:var(--bg-secondary);color:var(--text-secondary);border:2px solid var(--border-light, #e5e7eb)}.res-btn--back:hover{background:var(--border-light, #e5e7eb);color:var(--text-primary)}@media (max-width: 768px){.quiz-page,.results-page{padding:12px 14px 80px}.quiz-topbar{flex-direction:column;gap:10px}.qcard{padding:18px 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var(--border-light);border-radius:16px;padding:24px;transition:all .3s ease;position:relative;overflow:hidden;display:flex;flex-direction:column}.trophy-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:#2661b2;opacity:0;transition:opacity .3s ease}.trophy-card:hover:before{opacity:1}.trophy-card.earned{border-color:#4caf50;box-shadow:0 4px 16px #4caf5033}.trophy-card.locked{opacity:.7}.trophy-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #2661b233}.trophy-icon-container{position:relative;display:flex;justify-content:center;align-items:center;margin-bottom:16px;max-width:100%;overflow:hidden;min-height:80px}.trophy-icon{font-size:4rem;filter:drop-shadow(0 4px 8px rgba(0,0,0,.2));transition:all .3s ease;max-width:100%}.trophy-card.earned .trophy-icon{animation:trophy-bounce .6s ease}.trophy-card.locked .trophy-icon{filter:grayscale(100%) opacity(.5)}@keyframes 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768px){.trophies-page{padding:15px;margin-top:40px}.trophy-stats{grid-template-columns:repeat(2,1fr);gap:12px}.stat-card{padding:15px;gap:10px}.stat-icon{font-size:2rem;width:50px;height:50px}.stat-info h4{font-size:1.4rem}.stat-info p{font-size:.8rem}.category-filter{gap:8px;padding:8px}.category-btn{padding:10px 14px;font-size:.85rem}.category-icon{font-size:1.1rem}.trophy-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:15px}.trophy-card{padding:18px}.trophy-icon{font-size:3rem}.trophy-details h3{font-size:1.1rem}.trophy-description{font-size:.85rem}}@media (max-width: 480px){.trophy-stats{grid-template-columns:1fr}.category-filter{flex-direction:column}.category-btn{width:100%;justify-content:center}.trophy-grid{grid-template-columns:1fr}}.trophy-tabs{display:flex;gap:12px;margin-bottom:28px;background:var(--bg-card);border:2px solid var(--border-light);border-radius:16px;padding:8px}.trophy-tab{flex:1;padding:14px 20px;border:2px solid 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scale(1.15)}to{transform:rotate(360deg) scale(1)}}.trophy-loading p{font-size:1.1rem;color:var(--text-secondary)}.new-trophy-toast{position:fixed;bottom:30px;right:30px;z-index:9999;display:flex;flex-direction:column;gap:10px}.toast-item{display:flex;align-items:center;gap:14px;padding:16px 20px;background:#2661b2;color:#fff;border-radius:16px;box-shadow:0 8px 32px #2661b266;animation:toast-slide-in .4s ease;min-width:280px;max-width:360px}.toast-item span:first-child{font-size:2rem;flex-shrink:0}.toast-item div{flex:1}.toast-item strong{display:block;font-size:.85rem;opacity:.85}.toast-item p{margin:2px 0 0;font-size:1rem;font-weight:700}.toast-close{background:#fff3;border:none;color:#fff;width:28px;height:28px;border-radius:50%;cursor:pointer;font-size:.9rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .2s}.toast-close:hover{background:#ffffff59}@keyframes toast-slide-in{0%{transform:translate(120%);opacity:0}to{transform:translate(0);opacity:1}}@media (max-width: 600px){.leaderboard-row{padding:14px 16px;gap:12px}.lb-rank{font-size:1.4rem;min-width:38px}.lb-avatar{width:42px;height:42px}.lb-trophy-count{font-size:1.3rem}.trophy-tabs{flex-direction:column;gap:8px}.new-trophy-toast{bottom:16px;right:16px;left:16px}.toast-item{min-width:unset}}.weekly-reset-banner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;background:linear-gradient(135deg,#2661b214,#2661b224);border:1.5px solid rgba(38,97,178,.28);border-radius:14px;padding:14px 22px;margin-bottom:22px}.weekly-reset-left{display:flex;align-items:center;gap:12px}.weekly-reset-icon{font-size:1.6rem;flex-shrink:0}.weekly-reset-text strong{display:block;font-size:.95rem;font-weight:700;color:#2661b2;margin-bottom:2px}.weekly-reset-text p{margin:0;font-size:.82rem;color:var(--text-secondary)}.weekly-reset-timer{display:flex;flex-direction:column;align-items:flex-end;flex-shrink:0}.weekly-reset-label{font-size:.72rem;color:var(--text-secondary);font-weight:600;text-transform:uppercase;letter-spacing:.06em;margin-bottom:2px}.weekly-reset-countdown{font-size:1.15rem;font-weight:800;color:#2661b2;font-variant-numeric:tabular-nums;letter-spacing:.03em}.weekly-just-reset{display:flex;align-items:center;gap:12px;background:#22c55e1a;border:1.5px solid rgba(34,197,94,.4);border-radius:12px;padding:12px 18px;margin-bottom:18px;animation:reset-pop .4s cubic-bezier(.34,1.3,.64,1)}@keyframes reset-pop{0%{transform:scaleY(.8);opacity:0}to{transform:scaleY(1);opacity:1}}.weekly-just-reset span:first-child{font-size:1.4rem;flex-shrink:0}.weekly-just-reset p{flex:1;margin:0;font-size:.9rem;font-weight:600;color:#15803d}.weekly-just-reset-close{background:#22c55e26;border:none;color:#15803d;width:26px;height:26px;border-radius:50%;cursor:pointer;font-size:.8rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .2s}.weekly-just-reset-close:hover{background:#22c55e4d}@media (max-width: 600px){.weekly-reset-banner{flex-direction:column;align-items:flex-start}.weekly-reset-timer{align-items:flex-start}.weekly-reset-countdown{font-size:1rem}}.sl-page{padding:20px;max-width:1100px;margin:60px auto 0;position:relative}.sl-page-label{position:absolute;top:-40px;left:0;font-size:1rem;color:var(--text-tertiary);font-weight:500}.sl-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}.sl-title{margin:0 0 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var(--input-border);border-radius:10px;color:var(--input-text);font-size:.95rem;font-family:Inter,sans-serif;cursor:pointer;outline:none;transition:border-color .2s ease;min-width:200px;height:48px;line-height:1.5;appearance:auto;-webkit-appearance:auto}.sl-select:focus{border-color:#2661b2b3;box-shadow:0 0 0 3px #2661b21a}.sl-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;margin-top:120px;gap:16px}.sl-spinner{font-size:3.5rem;animation:sl-spin 1.2s linear infinite}@keyframes sl-spin{0%{transform:rotate(0) scale(1)}50%{transform:rotate(180deg) scale(1.15)}to{transform:rotate(360deg) scale(1)}}.sl-loading p{font-size:1.1rem;color:var(--text-secondary)}.sl-empty{text-align:center;padding:70px 20px;background:var(--bg-card);border:2px solid var(--border-light);border-radius:16px}.sl-empty-icon{font-size:4rem;margin-bottom:16px}.sl-empty h4{margin:0 0 8px;font-size:1.3rem;font-weight:700;color:var(--text-primary)}.sl-empty p{margin:0 0 24px;font-size:.95rem;color:var(--text-secondary)}.sl-btn-primary{padding:12px 28px;background:#2661b2;color:#fff;border:none;border-radius:10px;font-size:.95rem;font-weight:700;cursor:pointer;transition:all .2s ease}.sl-btn-primary:hover{background:#1e5096;box-shadow:0 4px 16px #2661b252;transform:translateY(-1px)}.sl-subject-block{margin-bottom:32px;animation:sl-fade-in .3s ease}@keyframes sl-fade-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.sl-subject-header{display:flex;align-items:center;gap:12px;padding:14px 20px;background:linear-gradient(135deg,#2661b217,#2661b226);border:1.5px solid rgba(38,97,178,.28);border-radius:14px;margin-bottom:14px}.sl-subject-icon{font-size:1.4rem;flex-shrink:0}.sl-subject-name{margin:0;flex:1;font-size:1.2rem;font-weight:700;color:#2661b2}.sl-subject-count{font-size:.8rem;font-weight:600;padding:4px 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