:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}button{background-color:#f9f9f9}}.App{width:100%;min-height:100vh;background:linear-gradient(135deg,#f0f8ff,#e8f5e9);padding:2rem}.app-main-title{font-size:3.5rem;font-weight:900;text-align:center;color:#fff;margin:0 0 2rem;font-family:Arial Black,Helvetica Bold,sans-serif;text-transform:uppercase;letter-spacing:3px;background:linear-gradient(180deg,#e40b2e,#c00a26);padding:1.5rem 3rem;border:8px solid white;border-radius:12px;box-shadow:0 8px 20px #0000004d,inset 0 2px 4px #ffffff4d,inset 0 -2px 4px #0003;display:inline-block;position:relative;width:fit-content;margin-left:auto;margin-right:auto;text-shadow:3px 3px 0px #000,-1px -1px 0px #000,1px -1px 0px #000,-1px 1px 0px #000,1px 1px 0px #000,4px 4px 8px rgba(0,0,0,.5)}.App>.app-main-title{display:block;width:auto;max-width:90%;margin-left:auto;margin-right:auto}.results-phase{max-width:900px;margin:0 auto;text-align:center;padding:2rem}.results-summary{background:#fff;border-radius:20px;padding:3rem 2rem;box-shadow:0 10px 30px #0000001a;margin-bottom:2rem}.results-summary h2{font-size:3rem;color:#e40b2e;margin-bottom:1.5rem;font-family:Fredoka,Comic Sans MS,cursive,sans-serif}.results-summary p{font-size:1.8rem;color:#333;margin:1rem 0;line-height:1.6}.results-summary strong{color:#00a550;font-weight:800;font-size:2rem;margin:0 .3rem}.placeholder-text{color:#666;font-style:italic;margin-top:2rem;font-size:1.3rem!important}.try-again-button{font-size:2rem;font-weight:800;padding:1.5rem 3rem;background:linear-gradient(135deg,#06c,#0080ff);color:#fff;border:none;border-radius:16px;cursor:pointer;box-shadow:0 8px 20px #0066cc4d;transition:all .3s ease;font-family:Fredoka,Comic Sans MS,cursive,sans-serif;text-transform:uppercase;letter-spacing:1px}.try-again-button:hover{transform:translateY(-4px);box-shadow:0 12px 30px #06c6;background:linear-gradient(135deg,#0080ff,#06c)}.try-again-button:active{transform:translateY(-2px)}@media(max-width:767px){.App{padding:1rem}.app-main-title{font-size:2.5rem;margin-bottom:1.5rem}.results-summary h2{font-size:2rem}.results-summary p{font-size:1.4rem}.results-summary strong{font-size:1.6rem}.try-again-button{font-size:1.5rem;padding:1.2rem 2rem;width:100%}}:root{--monopoly-red: #E40B2E;--monopoly-green: #00A550;--monopoly-gold: #FFD700;--monopoly-blue: #0066CC;--monopoly-purple: #8B008B;--bg-light: #F8F9FA;--bg-cream: #FFF8E7;--text-dark: #333333;--text-light: #FFFFFF;--border-radius: 12px;--shadow: 0 4px 6px rgba(0, 0, 0, .1);--shadow-hover: 0 6px 12px rgba(0, 0, 0, .15)}.dice-input{max-width:900px;margin:0 auto;padding:2rem;background:var(--bg-cream);min-height:100vh;font-family:Open Sans,Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.dice-input__main-title{font-size:4.5rem;font-weight:900;text-align:center;margin-bottom:2rem;font-family:Fredoka,Comic Sans MS,cursive,sans-serif;text-shadow:4px 4px 8px rgba(0,0,0,.2);background:linear-gradient(135deg,var(--monopoly-red) 0%,var(--monopoly-blue) 50%,var(--monopoly-green) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:2px;text-transform:uppercase}.dice-input__subtitle{font-size:2.8rem;font-weight:800;color:var(--monopoly-red);text-align:center;margin-bottom:3rem;margin-top:1.5rem;font-family:Fredoka,Comic Sans MS,cursive,sans-serif;text-shadow:3px 3px 6px rgba(228,11,46,.3)}.dice-section{background:#fff;border-radius:var(--border-radius);padding:1.5rem;margin-bottom:1.5rem;box-shadow:var(--shadow);border:3px solid var(--monopoly-blue)}.dice-section__title{font-size:1.8rem;font-weight:700;color:var(--monopoly-green);margin-bottom:1rem;font-family:Fredoka,Comic Sans MS,cursive,sans-serif}.dice-buttons{display:grid;grid-template-columns:repeat(auto-fit,minmax(80px,1fr));gap:1rem}.dice-button{min-width:110px;min-height:110px;padding:1.2rem;background:linear-gradient(135deg,#e8e8e8,#d3d3d3);border:3px solid #C0C0C0;border-radius:var(--border-radius);cursor:pointer;transition:all .2s ease;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;font-size:1.2rem;font-weight:600;color:var(--text-dark);box-shadow:var(--shadow)}.dice-button:hover{transform:scale(1.05);box-shadow:var(--shadow-hover);border-color:var(--monopoly-green)}.dice-button:focus{outline:3px solid var(--monopoly-gold);outline-offset:2px}.dice-button.selected{background:linear-gradient(135deg,var(--monopoly-green) 0%,#00CC66 100%);border-color:var(--monopoly-green);color:var(--text-light);transform:scale(1.08);box-shadow:0 8px 16px #00a5504d}.dice-container{display:flex;flex-direction:column;align-items:center;gap:.5rem}.dice-face-3d{position:relative;width:75px;height:75px;background:linear-gradient(135deg,#fff,#f5f5f5);border-radius:12px;border:1px solid rgba(0,0,0,.2);box-shadow:inset -3px -3px 6px #00000040,inset 3px 3px 6px #ffffffe6,3px 3px 10px #0003,0 0 0 1px #0000000d;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:2px;padding:6px}.dice-button.selected .dice-face-3d{background:linear-gradient(135deg,var(--monopoly-green) 0%,#00CC66 100%);border-color:var(--monopoly-green);box-shadow:inset -3px -3px 6px #00000040,inset 3px 3px 6px #ffffff80,3px 3px 12px #00a5504d,0 0 0 2px var(--monopoly-green)}.dice-dot{width:13px;height:13px;background:linear-gradient(135deg,#1a1a1a,#000);border-radius:50%;box-shadow:inset -1px -1px 2px #ffffff4d,1px 1px 3px #0006}.dice-button.selected .dice-dot{background:linear-gradient(135deg,#1a1a1a,#000);box-shadow:inset -1px -1px 2px #ffffff4d,1px 1px 3px #0006}.dice-value-label{font-size:1.6rem;font-weight:900;color:#000;text-shadow:1px 1px 2px rgba(0,0,0,.2);font-family:Fredoka,Comic Sans MS,cursive,sans-serif}.dice-button.selected .dice-value-label{color:#000;text-shadow:1px 1px 2px rgba(0,0,0,.2)}.speed-die-buttons{grid-template-columns:repeat(auto-fit,minmax(120px,1fr))}.speed-die-button{min-height:120px;padding:1.5rem}.dice-button__icon{font-size:4rem;line-height:1}.dice-button__label{font-size:1.4rem;font-weight:800;text-align:center}.roll-button-container{text-align:center;margin-top:2rem}.roll-button{font-size:2rem;font-weight:800;padding:1.5rem 3rem;background:linear-gradient(135deg,var(--monopoly-red) 0%,#FF1744 100%);color:var(--text-light);border:none;border-radius:var(--border-radius);cursor:pointer;box-shadow:0 8px 16px #e40b2e4d;transition:all .3s ease;font-family:Fredoka,Comic Sans MS,cursive,sans-serif;text-transform:uppercase;letter-spacing:1px}.roll-button:hover:not(:disabled){transform:translateY(-4px);box-shadow:0 12px 24px #e40b2e66;background:linear-gradient(135deg,#FF1744 0%,var(--monopoly-red) 100%)}.roll-button:active:not(:disabled){transform:translateY(-2px)}.roll-button:disabled{background:#ccc;cursor:not-allowed;box-shadow:none;opacity:.6}.roll-button:focus{outline:4px solid var(--monopoly-gold);outline-offset:4px}.selection-summary{text-align:center;margin-top:1.5rem;padding:1rem;background:var(--monopoly-gold);border-radius:var(--border-radius);box-shadow:var(--shadow)}.selection-summary p{font-size:1.3rem;font-weight:600;color:var(--text-dark);margin:0}@media(max-width:767px){.dice-input{padding:1rem}.dice-input__main-title{font-size:2rem;letter-spacing:1px}.dice-input__subtitle{font-size:1.8rem;margin-top:1rem;margin-bottom:2rem}.dice-section__title{font-size:1.5rem}.dice-buttons{grid-template-columns:repeat(3,1fr);gap:.75rem}.dice-button{min-width:90px;min-height:90px;padding:.75rem}.dice-face-3d{width:60px;height:60px;padding:5px}.dice-dot{width:10px;height:10px}.dice-value-label{font-size:1.3rem}.speed-die-buttons{grid-template-columns:repeat(2,1fr)}.dice-button__icon{font-size:3rem}.dice-button__label{font-size:1.1rem}.roll-button{font-size:1.5rem;padding:1.2rem 2rem;width:100%}.selection-summary p{font-size:1rem}}@media(min-width:768px)and (max-width:1023px){.dice-buttons{grid-template-columns:repeat(6,1fr)}.speed-die-buttons{grid-template-columns:repeat(3,1fr)}}@media(min-width:1024px){.dice-buttons,.speed-die-buttons{grid-template-columns:repeat(6,1fr)}}@media(prefers-contrast:high){.dice-button{border-width:4px}.dice-button.selected{border-width:5px}}@media(prefers-reduced-motion:reduce){.dice-button,.roll-button{transition:none}.dice-button:hover,.roll-button:hover{transform:none}}:root{--monopoly-red: #E40B2E;--monopoly-green: #00A550;--monopoly-gold: #FFD700;--monopoly-blue: #0066CC;--dice-bg: #FFFFFF;--dice-shadow: rgba(0, 0, 0, .3);--stage-bg: #F0F8FF}.dice-animation-container{width:100%;max-width:1000px;margin:0 auto;padding:2rem;background:linear-gradient(135deg,var(--stage-bg) 0%,#E8F5E9 100%);border-radius:20px;box-shadow:0 10px 30px #0000001a}.dice-stage{display:flex;justify-content:center;align-items:center;gap:3rem;min-height:300px;padding:2rem;perspective:1000px}.dice{width:120px;height:120px;position:relative;transform-style:preserve-3d;transition:transform .3s ease}.dice-face{width:100%;height:100%;background:var(--dice-bg);border:4px solid var(--monopoly-blue);border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.5rem;box-shadow:0 8px 20px var(--dice-shadow),inset 0 2px 4px #fff9;position:relative;background:linear-gradient(145deg,#fff,#f5f5f5)}.dice-face-3d{position:relative;width:90px;height:90px;background:#fff;border-radius:12px;box-shadow:inset -3px -3px 8px #0003,inset 3px 3px 8px #ffffffe6,3px 3px 10px #00000026;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:3px;padding:8px}.dice-dot{width:16px;height:16px;background:#333;border-radius:50%;box-shadow:2px 2px 3px #0000004d}.dice.settled .dice-dot{background:var(--monopoly-red);box-shadow:2px 2px 4px #e40b2e80}.dice-dot.center{grid-column:2;grid-row:2}.dice-dot.top-left{grid-column:1;grid-row:1}.dice-dot.top-right{grid-column:3;grid-row:1}.dice-dot.middle-left{grid-column:1;grid-row:2}.dice-dot.middle-right{grid-column:3;grid-row:2}.dice-dot.bottom-left{grid-column:1;grid-row:3}.dice-dot.bottom-right{grid-column:3;grid-row:3}.dice-icon{font-size:4rem;line-height:1}.dice-label{font-size:1.1rem;font-weight:700;color:var(--monopoly-green);text-align:center}.speed-die .dice-face{background:linear-gradient(145deg,#fff8dc,#ffe4b5);border-color:var(--monopoly-gold)}.speed-icon{font-size:3.5rem}@keyframes tumble{0%{transform:rotate3d(0,0,0,0) translateY(0)}10%{transform:rotate3d(1,1,0,90deg) translateY(-20px)}20%{transform:rotate3d(0,1,1,180deg) translateY(-30px)}30%{transform:rotate3d(1,0,1,270deg) translateY(-20px)}40%{transform:rotate3d(1,1,1,360deg) translateY(-10px)}50%{transform:rotateY(450deg) translateY(-30px)}60%{transform:rotateX(540deg) translateY(-20px)}70%{transform:rotate3d(1,1,1,630deg) translateY(-10px)}80%{transform:rotate3d(0,0,1,720deg) translateY(-5px)}90%{transform:rotate3d(1,1,0,810deg) translateY(0)}to{transform:rotate3d(0,0,0,900deg) translateY(0)}}.dice.rolling{animation:tumble 1.8s cubic-bezier(.25,.46,.45,.94) forwards}.dice.tumbling{filter:blur(2px)}@keyframes settle{0%{transform:scale(1) translateY(0)}30%{transform:scale(1.1) translateY(-10px)}50%{transform:scale(.95) translateY(5px)}70%{transform:scale(1.05) translateY(-5px)}to{transform:scale(1) translateY(0)}}.dice.settled{animation:settle .6s ease-out forwards;filter:blur(0);box-shadow:0 12px 30px #00a5504d}.dice.settled .dice-face{box-shadow:0 12px 30px var(--dice-shadow),0 0 20px var(--monopoly-gold),inset 0 2px 4px #fffc}@keyframes glow{0%,to{box-shadow:0 0 10px var(--monopoly-gold)}50%{box-shadow:0 0 25px var(--monopoly-gold),0 0 40px var(--monopoly-gold)}}.dice.settled:after{content:"";position:absolute;top:-4px;left:-4px;right:-4px;bottom:-4px;border-radius:20px;animation:glow 2s ease-in-out infinite;z-index:-1}.result-summary{text-align:center;margin-top:2rem;padding:1.5rem;background:linear-gradient(135deg,var(--monopoly-gold) 0%,#FFA500 100%);border-radius:16px;box-shadow:0 8px 20px #ffd70066;animation:fadeIn .5s ease-out}.result-text{font-size:1.8rem;font-weight:700;color:#333;margin:0;font-family:Fredoka,Comic Sans MS,cursive,sans-serif}.result-text strong{color:var(--monopoly-red);font-size:2rem}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}@media(max-width:767px){.dice-stage{flex-direction:column;gap:2rem;min-height:auto;padding:1rem}.dice{width:100px;height:100px}.dice-icon{font-size:3rem}.dice-number{font-size:1.2rem}.speed-icon{font-size:2.8rem}.dice-label{font-size:.9rem}.result-text{font-size:1.4rem}.result-text strong{font-size:1.6rem}}@media(min-width:768px)and (max-width:1023px){.dice-stage{gap:2.5rem}.dice{width:110px;height:110px}}@media(prefers-reduced-motion:reduce){.dice.rolling{animation:none;opacity:.5}.dice.settled{animation:none;opacity:1}.dice.settled:after{animation:none}.result-summary{animation:none}}@media(prefers-contrast:high){.dice-face{border-width:5px}.dice.settled .dice-face{border-width:6px}}:root{--monopoly-red: #E40B2E;--monopoly-green: #00A550;--monopoly-gold: #FFD700;--monopoly-blue: #0066CC;--rule-bg: #E3F2FD;--tip-bg: #FFF9C4}.rules-display{max-width:800px;margin:0 auto;background:#fff;border-radius:20px;padding:2.5rem;box-shadow:0 10px 30px #00000026;animation:slideUp .5s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.category-header{display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:4px solid var(--monopoly-green)}.category-icon{font-size:4rem;line-height:1}.category-title{font-size:2.5rem;font-weight:800;color:var(--monopoly-red);margin:0;font-family:Fredoka,Comic Sans MS,cursive,sans-serif}.total-display{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:1.5rem;background:linear-gradient(135deg,var(--monopoly-green) 0%,#00CC66 100%);border-radius:16px;margin-bottom:1.5rem;box-shadow:0 4px 12px #00a5504d}.total-label{font-size:1.4rem;font-weight:600;color:#fff}.total-number{font-size:3rem;font-weight:900;color:#fff;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.total-suffix{font-size:1.4rem;font-weight:600;color:#fff}.doubles-indicator{display:flex;flex-direction:column;gap:1rem;padding:1.5rem 2rem;background:linear-gradient(135deg,var(--monopoly-gold) 0%,#FFA500 100%);border-radius:12px;margin-bottom:1.5rem;box-shadow:0 4px 12px #ffd70066;animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.doubles-indicator>div:first-child{display:flex;align-items:center;justify-content:center;gap:1rem}.doubles-icon{font-size:2.5rem}.doubles-text{font-size:1.8rem;font-weight:800;color:#333;text-transform:uppercase;letter-spacing:1px}.doubles-exception{background:linear-gradient(135deg,#ff6b6b,#ee5a6f);color:#fff;padding:1rem 1.5rem;border-radius:10px;font-size:1.2rem;line-height:1.6;text-align:center;box-shadow:0 3px 8px #ee5a6f4d}.doubles-exception strong{display:block;font-size:1.3rem;margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.5px}.doubles-note{background:#ffffffe6;padding:1rem 1.5rem;border-radius:10px;font-size:1.15rem;line-height:1.6;text-align:center;color:#333;border:2px solid rgba(0,0,0,.1);font-weight:600}.rule-section{background:var(--rule-bg);border-left:6px solid var(--monopoly-blue);padding:1.5rem 2rem;border-radius:12px;margin-bottom:1.5rem}.section-title{font-size:1.6rem;font-weight:700;color:var(--monopoly-blue);margin:0 0 1rem;font-family:Fredoka,Comic Sans MS,cursive,sans-serif}.rule-text{font-size:1.5rem;color:#333;line-height:1.8;margin:0;font-weight:500}.speed-die-details{background:linear-gradient(135deg,#e8f5e9,#f1f8e9);border-left:6px solid var(--monopoly-green);padding:1.5rem 2rem;border-radius:12px;margin-bottom:1.5rem;box-shadow:0 4px 12px #00a55026}.speed-die-title{color:var(--monopoly-green);font-size:1.8rem;margin-bottom:1.2rem}.speed-die-rules-list{list-style:none;padding:0;margin:0}.speed-die-rule-item{font-size:1.35rem;color:#2e7d32;line-height:2;margin-bottom:.75rem;padding-left:.5rem;font-weight:600}.speed-die-rule-item:last-child{margin-bottom:0}.tip-section{background:var(--tip-bg);border-left:6px solid var(--monopoly-gold);padding:1.5rem 2rem;border-radius:12px}.tip-section .section-title{color:#f57c00}.tip-text{font-size:1.4rem;color:#555;line-height:1.8;margin:0;font-weight:600;font-style:italic}@media(max-width:767px){.rules-display{padding:1.5rem}.category-icon{font-size:3rem}.category-title{font-size:1.8rem}.total-label,.total-suffix{font-size:1.1rem}.total-number{font-size:2.5rem}.doubles-text{font-size:1.4rem}.doubles-exception{font-size:1.05rem;padding:.8rem 1.2rem}.doubles-exception strong{font-size:1.15rem}.doubles-note{font-size:1rem;padding:.8rem 1.2rem}.section-title{font-size:1.3rem}.rule-text{font-size:1.2rem}.tip-text{font-size:1.1rem}.speed-die-title{font-size:1.4rem}.speed-die-rule-item{font-size:1.1rem;line-height:1.8}.rule-section,.tip-section,.speed-die-details{padding:1.2rem 1.5rem}}@media(min-width:768px)and (max-width:1023px){.category-title{font-size:2.2rem}.total-number{font-size:2.8rem}}@media(prefers-contrast:high){.rule-section,.tip-section{border-left-width:8px}.rule-text,.tip-text{font-weight:700}}@media(prefers-reduced-motion:reduce){.rules-display,.doubles-indicator{animation:none}}@media print{.rules-display{box-shadow:none;border:2px solid #000}.doubles-indicator{animation:none}}.position-input{background:#fff;border-radius:16px;padding:20px;margin:20px 0;box-shadow:0 4px 12px #0000001a}.current-position-badge{background:gold;color:#333;padding:10px 18px;border-radius:20px;font-weight:600;font-size:16px;box-shadow:0 2px 6px #ffd7004d;margin-bottom:20px;text-align:center}.position-content{margin-top:0}.input-mode-selector{display:flex;gap:12px;margin-bottom:20px;background:#f5f5f5;padding:8px;border-radius:12px}.mode-button{flex:1;background:linear-gradient(135deg,#00a550,#00843f);color:#fff;border:none;padding:14px 24px;border-radius:10px 10px 0 0;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 4px #0000001a,0 4px 8px #00a55033,inset 0 -4px 8px #00000026;position:relative;transform-style:preserve-3d;z-index:1}.mode-button:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(to bottom,#fff3,#0000001a);border-radius:10px 10px 0 0;opacity:0;transition:opacity .3s ease}.mode-button:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 4px 8px #00000026,0 8px 16px #00a5504d,inset 0 -4px 8px #00000026;z-index:2}.mode-button:hover:before{opacity:1}.mode-button.active{background:linear-gradient(135deg,gold,#ffc700);color:#333;transform:translateY(-8px) scale(1.05);box-shadow:0 1px 3px #0000001f,0 8px 16px #ffd70066,0 16px 32px #ffd7004d,inset 0 1px 3px #ffffff4d,inset 0 -6px 12px #0003;animation:tabPulse 2s ease-in-out infinite;font-size:17px;letter-spacing:.5px;z-index:10}.mode-button.active:before{opacity:1;background:linear-gradient(to bottom,#ffffff4d,#0000000d)}.mode-button.active:after{content:"✓";position:absolute;top:-10px;right:-10px;background:gold;color:#333;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;box-shadow:0 2px 8px #ffd70080;animation:checkmarkPop .4s cubic-bezier(.68,-.55,.265,1.55);border:3px solid white}@keyframes tabPulse{0%,to{box-shadow:0 1px 3px #0000001f,0 8px 16px #ffd70066,0 16px 32px #ffd7004d,inset 0 1px 3px #ffffff4d,inset 0 -6px 12px #0003}50%{box-shadow:0 1px 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