:root{--bg-page:#f5f0eb;--bg-surface:#fff;--bg-sidebar:#1a1a2e;--text:#1a1a2e;--text-muted:#6b7280;--text-sidebar:#9595b0;--text-sidebar-active:#fff;--border:#1a1a2e;--accent:#ff4757;--correct:#2ed573;--wrong:#ff4757;--sidebar-w:240px;--sans:"DM Sans", system-ui, sans-serif;--heading:"DM Serif Display", Georgia, serif;font:16px/1.5 var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--text);background:var(--bg-page);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*,:before,:after{box-sizing:border-box}body{margin:0}#root{min-height:100vh;display:flex}h1,h2,h3{font-family:var(--heading);margin:0;font-weight:400}p{margin:0}button{font-family:inherit}.app{flex-direction:column;width:100%;min-height:100dvh;display:flex}.sidebar{background:var(--bg-sidebar);border-bottom:3px solid var(--accent);flex-direction:column;width:100%;display:flex}.sidebar-header{border-bottom:1px solid #ffffff14;padding:10px 14px}.sidebar-title{font-family:var(--heading);color:#fff;font-size:16px;line-height:1.1}.sidebar-subtitle{color:var(--text-sidebar);text-transform:uppercase;letter-spacing:2px;margin-top:2px;font-size:9px}.sidebar-nav{-webkit-overflow-scrolling:touch;flex-direction:row;flex-shrink:0;gap:4px;padding:6px 8px;display:flex;overflow-x:auto}.sidebar-item{color:var(--text-sidebar);cursor:pointer;text-align:left;white-space:nowrap;background:0 0;border:none;border-radius:6px;flex-shrink:0;align-items:center;gap:6px;padding:6px 10px;font-size:11px;font-weight:500;transition:background .15s,color .15s;display:flex}.sidebar-item:hover{color:var(--text-sidebar-active);background:#ffffff0f}.sidebar-item.active{color:var(--text-sidebar-active);background:#ffffff1a}.sidebar-item-indicator{border-radius:50%;flex-shrink:0;width:5px;height:5px}.main{flex-direction:column;flex:1;min-width:0;padding:10px;display:flex;overflow:hidden}.welcome{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;display:flex}.welcome h1{margin-bottom:8px;font-size:32px}.welcome p{color:var(--text-muted);margin-bottom:24px;font-size:14px}.welcome-decoration{background:var(--accent);border-radius:2px;width:60px;height:3px}.game-header{flex-direction:column;align-items:stretch;gap:6px;margin-bottom:10px;display:flex}.game-progress{flex:1}.game-counter{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:4px;font-size:10px;font-weight:600;display:block}.progress-bar{background:#e0d8d0;border-radius:2px;height:4px;overflow:hidden}.progress-fill{background:var(--accent);border-radius:2px;height:100%;transition:width .4s}.game-score{color:var(--text);font-size:16px;font-weight:700;font-family:var(--heading)}.question-text{font-family:var(--heading);margin:0 0 10px;font-size:16px;line-height:1.3}.game{flex-direction:column;gap:10px;display:flex}.game-left{flex-direction:column;gap:8px;display:flex}.game-right{flex-direction:column;gap:8px;width:100%;display:flex}.question-img{aspect-ratio:1;border:3px solid var(--border);background-position:50%;background-repeat:no-repeat;background-color:var(--bg-surface);justify-content:center;align-items:center;width:100%;display:flex;position:relative;overflow:hidden}.placeholder-content{color:#fff;z-index:1;flex-direction:column;justify-content:center;align-items:center;gap:6px;display:flex;position:absolute;inset:0}.placeholder-content:before{content:"";opacity:.1;background:repeating-linear-gradient(45deg,#0000,#0000 10px,#ffffff0d 10px 20px);position:absolute;inset:0}.placeholder-hint{text-align:center;z-index:1;padding:0 12px;font-size:14px;font-weight:700;position:relative}.placeholder-note{opacity:.6;z-index:1;font-size:9px;position:relative}.timer-row{align-items:center;gap:8px;display:flex}.pause-btn{border:2px solid var(--border);background:var(--bg-surface);cursor:pointer;width:30px;height:30px;color:var(--text);font-size:12px;font-family:var(--sans);flex-shrink:0;justify-content:center;align-items:center;transition:background .15s,border-color .15s;display:flex}.pause-btn:hover:not(:disabled){border-color:var(--accent);background:#f0ebf5}.pause-btn:disabled{opacity:.3;cursor:default}.timer-wrapper{flex-direction:column;flex:1;gap:2px;display:flex}.timer-bar{background:#e0d8d0;border-radius:3px;height:6px;overflow:hidden}.timer-fill{background:var(--accent);border-radius:3px;height:100%;transition:width 1s linear}.timer-text{color:var(--text-muted);text-align:right;font-size:9px;font-weight:700;line-height:1}.options{flex-direction:column;gap:8px;display:flex}.option-btn{border:3px solid var(--border);background:var(--bg-surface);cursor:pointer;text-align:left;color:var(--text);align-items:center;gap:8px;width:100%;padding:10px 12px;font-size:12px;font-weight:600;transition:transform .15s,border-color .2s,background .2s;display:flex}.option-btn:not(.answered):hover{border-color:var(--accent);background:#fef2f2;transform:translate(4px)}.option-letter{width:26px;height:26px;font-family:var(--sans);color:var(--text);background:linear-gradient(#f8f5f0 0%,#e8e2d8 100%);border:1px solid #c8c0b4;border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;font-size:10px;font-weight:700;transition:background .2s,color .2s,box-shadow .2s,transform .1s;display:flex;transform:translateY(-1px);box-shadow:0 2px #b0a89c,0 3px 6px #0000001a}.option-text{flex:1}.option-btn.correct{border-color:var(--correct);background:#f0fdf4}.option-btn.correct .option-letter{color:#fff;background:linear-gradient(#4ade80 0%,#22c55e 100%);border-color:#16a34a;box-shadow:0 2px #15803d,0 3px 6px #0000001a}.option-btn.wrong{border-color:var(--wrong);background:#fef2f2;animation:.4s shake-once}.option-btn.wrong .option-letter{color:#fff;background:linear-gradient(#f87171 0%,#ef4444 100%);border-color:#dc2626;box-shadow:0 2px #b91c1c,0 3px 6px #0000001a}.option-btn.dimmed{opacity:.35}.option-btn.dimmed .option-letter{transform:translateY(0);box-shadow:0 1px #b0a89c,0 2px 4px #0000000d}.option-btn:disabled{cursor:default}@keyframes shake-once{0%,to{transform:translate(0)}15%{transform:translate(-6px)rotate(-1deg)}30%{transform:translate(6px)rotate(1deg)}45%{transform:translate(-4px)}60%{transform:translate(4px)}75%{transform:translate(-2px)}90%{transform:translate(2px)}}.sub-picker{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;display:flex}.sub-picker-title{font-family:var(--heading);margin-bottom:6px;font-size:22px}.sub-picker-hint{color:var(--text-muted);margin-bottom:24px;font-size:13px}.sub-picker-grid{flex-direction:column;align-items:center;gap:10px;display:flex}.sub-picker-card{border:3px solid var(--border);background:var(--bg-surface);cursor:pointer;text-align:center;flex-direction:column;align-items:center;gap:6px;width:100%;max-width:280px;padding:14px 20px;font-family:inherit;transition:transform .15s,box-shadow .15s;display:flex}.sub-picker-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001a}.sub-picker-name{font-family:var(--heading);color:var(--text);font-size:16px}.sub-picker-count{color:var(--text-muted);font-size:11px;font-weight:600}.sub-badge{color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:4px;font-size:9px;font-weight:700;display:inline-block}.result{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;display:flex}.result h1{margin-bottom:16px;font-size:24px}.result-score{align-items:baseline;gap:6px;margin-bottom:12px;display:flex}.result-number{font-family:var(--heading);color:var(--accent);font-size:48px;line-height:1}.result-divider{color:var(--text-muted);font-size:28px;font-family:var(--heading)}.result-text{color:var(--text-muted);max-width:240px;margin-bottom:24px;font-size:14px}.btn-primary{border:3px solid var(--border);background:var(--bg-surface);color:var(--text);cursor:pointer;border-radius:4px;padding:10px 24px;font-size:13px;font-weight:700;transition:background .15s,transform .15s}.btn-primary:hover{background:#f0ebf5;transform:translateY(-2px)}@media (width>=600px){.sidebar-header{padding:12px 16px}.sidebar-title{font-size:18px}.sidebar-subtitle{font-size:10px}.sidebar-nav{gap:6px;padding:8px 12px}.sidebar-item{gap:8px;padding:8px 12px;font-size:13px}.sidebar-item-indicator{width:7px;height:7px}.main{padding:20px}.welcome h1{font-size:40px}.welcome p{margin-bottom:28px;font-size:16px}.welcome-decoration{width:70px}.game-header{flex-direction:row;align-items:center;gap:16px;margin-bottom:12px}.game-counter{margin-bottom:0;font-size:11px}.progress-bar{height:5px}.game-score{font-size:18px}.question-text{margin-bottom:14px;font-size:20px}.question-img{aspect-ratio:4/3}.placeholder-hint{font-size:18px}.placeholder-note{font-size:10px}.pause-btn{width:34px;height:34px;font-size:13px}.timer-bar{height:7px}.timer-text{font-size:10px}.option-btn{gap:10px;padding:12px 14px;font-size:13px}.option-letter{width:30px;height:30px;font-size:12px}.sub-picker-title{margin-bottom:8px;font-size:28px}.sub-picker-hint{margin-bottom:32px;font-size:14px}.sub-picker-grid{flex-direction:row;gap:12px}.sub-picker-card{width:auto;min-width:150px;max-width:none;padding:18px 24px}.sub-picker-name{font-size:18px}.sub-picker-count{font-size:12px}.sub-badge{margin-bottom:6px;font-size:10px}.result h1{margin-bottom:20px;font-size:32px}.result-number{font-size:64px}.result-divider{font-size:36px}.result-text{max-width:300px;font-size:15px}.btn-primary{padding:12px 28px;font-size:14px}}@media (width>=900px){.main{padding:clamp(20px,3vw,36px)}.welcome h1{font-size:48px}.welcome p{font-size:17px}.question-text{margin-bottom:16px;font-size:22px}.question-img{aspect-ratio:16/9}.placeholder-hint{font-size:20px}.timer-row{gap:10px}.timer-bar{height:8px}.timer-text{font-size:11px}.option-btn{gap:12px;padding:14px 16px;font-size:14px}.option-letter{width:34px;height:34px;font-size:13px}.sub-picker-title{font-size:32px}.sub-picker-hint{margin-bottom:36px;font-size:15px}.sub-picker-card{min-width:170px;padding:20px 28px}.sub-picker-name{font-size:20px}.result h1{margin-bottom:24px;font-size:38px}.result-number{font-size:80px}.result-divider{font-size:44px}.result-text{max-width:340px;margin-bottom:28px;font-size:16px}.btn-primary{padding:14px 32px;font-size:15px}}@media (width>=1050px){.app{flex-direction:row}.sidebar{width:var(--sidebar-w);border-bottom:none;border-right:3px solid var(--accent);flex-shrink:0;height:100dvh;position:sticky;top:0;overflow-y:auto}.sidebar-header{padding:28px 16px 20px}.sidebar-title{font-size:22px}.sidebar-subtitle{margin-top:4px;font-size:10px}.sidebar-nav{flex-direction:column;flex:1;gap:4px;padding:12px;overflow-x:visible}.sidebar-item{white-space:normal;gap:10px;width:100%;padding:10px 14px;font-size:15px}.sidebar-item-indicator{width:8px;height:8px}.main{padding:clamp(24px,3vw,48px)}.welcome h1{font-size:52px}.welcome-decoration{width:80px}.game-header{margin-bottom:clamp(12px,2vw,16px)}.game-counter{margin-bottom:6px;font-size:12px}.progress-bar{height:6px}.question-text{margin-bottom:clamp(16px,2vw,24px);font-size:clamp(22px,2.5vw,28px)}.game{flex-direction:row;align-items:flex-start;gap:clamp(20px,3vw,40px)}.game-left{flex:1;gap:clamp(12px,2vw,20px)}.game-right{flex-shrink:0;width:min(320px,100%)}.options{gap:10px}.option-btn{gap:clamp(12px,1.5vw,16px);padding:clamp(14px,1.5vw,18px) clamp(16px,2vw,20px);font-size:clamp(14px,1.2vw,16px)}.option-letter{width:clamp(34px,3vw,40px);height:clamp(34px,3vw,40px);font-size:clamp(13px,1.2vw,15px)}.pause-btn{width:36px;height:36px;font-size:14px}.timer-row{gap:12px}.sub-picker-title{font-size:38px}.sub-picker-hint{margin-bottom:40px}.sub-picker-card{min-width:180px;padding:24px 32px}.sub-picker-name{font-size:22px}.result h1{font-size:42px}.result-number{font-size:96px}.result-divider{font-size:48px}.result-text{max-width:360px;margin-bottom:32px}.btn-primary{padding:14px 36px;font-size:16px}}