:root{--bg-color:#2c3e50;--surface-color:#34495e;--primary-color:#3498db;--primary-hover:#2980b9;--secondary-color:#e67e22;--text-color:#ecf0f1;--border-color:#22303f;--invalid-color:#e74c3c;--correct-color:#2ecc71;--font-family:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--white-gem:#fff;--yellow-gem:#f1c40f;--red-gem:#e74c3c;--blue-gem:#3498db;--transparent-gem-stroke:#bdc3c7;--black-gem:#2c3a47}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-color);overscroll-behavior:none;-webkit-font-smoothing:antialiased}#app{background-color:var(--surface-color);flex-direction:column;max-width:550px;height:100vh;max-height:100vh;margin:0 auto;display:flex;position:relative;overflow:hidden;box-shadow:0 0 20px #00000080}.screen{background:url(https://www.transparenttextures.com/patterns/low-contrast-linen.png), var(--bg-color);opacity:1;flex-direction:column;align-items:center;width:100%;height:100%;padding:1.5rem;transition:opacity .3s ease-in-out,transform .3s ease-in-out;display:flex;position:absolute;top:0;left:0;transform:scale(1)}#screen-main,#screen-custom-creator{overflow-y:auto}.screen.hidden{visibility:hidden;opacity:0;pointer-events:none;transform:scale(.95)}.screen-v-center{justify-content:center}.screen-content{text-align:center;flex-direction:column;align-items:center;gap:1rem;width:100%;display:flex}#lang-switcher{cursor:pointer;-webkit-tap-highlight-color:transparent;background-color:#0003;border-radius:8px;justify-content:center;align-items:center;width:50px;height:50px;transition:background-color .2s;display:flex;position:absolute;top:15px;right:15px}#lang-switcher:hover{background-color:#0006}#lang-switcher svg{width:32px;height:auto;display:block}.title{letter-spacing:2px;text-shadow:2px 2px 4px 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input[type=checkbox]:checked{background-color:var(--primary-color);border-color:var(--primary-hover)}.preview-toggle-wrapper input[type=checkbox]:checked:after{transform:translate(20px)}#log-list{border:1px solid var(--border-color);background:var(--surface-color);border-radius:5px;height:200px;padding:.5rem;list-style-type:none;overflow-y:auto}#log-list li{border-bottom:1px solid var(--border-color);cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:3px;justify-content:space-between;align-items:center;padding:.5rem;font-size:.9rem;transition:background-color .2s;display:flex}#log-list li:last-child{border-bottom:none}#log-list li.selected{background-color:var(--primary-hover);color:var(--text-color)}.log-entry-result{align-items:center;gap:.5rem;display:flex}.log-color-name{opacity:.9;font-size:.9em}.log-color-box{border:1px solid var(--border-color);flex-shrink:0;width:20px;height:20px}#rules-panel h4{border-bottom:1px solid var(--border-color);margin-top:1rem;margin-bottom:.5rem;padding-bottom:.25rem}#rules-panel h4:first-child{margin-top:0}#rules-panel ul{margin-bottom:1rem;padding-left:1.5rem;line-height:1.6}#rules-panel p{line-height:1.6}#rules-panel strong{color:var(--primary-color)}.color-mix-container{align-items:flex-start;gap:1.5rem;margin-top:.5rem;display:flex;overflow-x:auto}.color-mix-column{flex-direction:column;flex:1;gap:.4rem;display:flex}.color-mix-entry{align-items:center;gap:.3rem;font-size:.75rem;display:flex}.color-mix-box{border:1px solid var(--border-color);flex-shrink:0;width:15px;height:15px}#custom-shape-designer-modal{z-index:1000;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background-color:#000000b3;padding:1rem}.designer-content{background-color:var(--surface-color);border:1px solid var(--border-color);border-radius:12px;flex-direction:column;align-items:center;gap:1.5rem;width:100%;max-width:500px;padding:2rem;animation:.3s ease-out 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#0000004d}#rotate-board-btn:hover{background-color:var(--primary-hover);transform:scale(1.1)}#sidebar-rating-info{display:none}#game-board-wrapper.board-rotated{aspect-ratio:12/10}.panel-heading,#log-empty-msg{display:none}@media (orientation:landscape){#app{max-width:none}#rotate-board-btn{justify-content:center;align-items:center;display:flex}#screen-game{grid-template:"rules board log"1fr"rules actions log"/430px 1fr 300px;padding:0;display:grid}#game-container{grid-area:board;min-height:0;padding:.5rem;position:relative;overflow:hidden}#game-board-wrapper{max-width:450px}#game-board-wrapper.board-rotated{aspect-ratio:12/10;max-width:540px}#controls-container{display:contents}#tab-buttons{display:none!important}#tab-panels{display:contents}.panel-heading{color:var(--primary-color);border-bottom:1px solid var(--border-color);margin:0 0 .75rem;padding-bottom:.5rem;font-size:1.1rem;font-weight:600;display:block}#log-empty-msg{color:#ffffff80;text-align:center;padding:2rem 0;font-size:.85rem;font-style:italic;display:block}#rules-panel{background:var(--bg-color);border-right:1px solid var(--border-color);grid-area:rules;height:100%;padding:1rem 1.25rem;overflow-y:auto;display:block!important}#actions-panel{background:var(--bg-color);border-top:1px solid var(--border-color);flex-flow:wrap;grid-area:actions;align-items:center;gap:.75rem;padding:.6rem 1rem;display:flex!important}#actions-panel .mode-switch-wrapper{flex-shrink:0}#actions-panel #gem-toolbar-wrapper{flex:1;min-width:0}#actions-panel #gem-toolbar-wrapper>span{display:none}#actions-panel .preview-toggle-wrapper,#actions-panel #action-buttons{flex-shrink:0}#log-panel{background:var(--bg-color);border-left:1px solid var(--border-color);flex-direction:column;grid-area:log;height:100%;padding:1rem 1.25rem;overflow-y:auto;display:flex!important}#log-panel #log-list{flex:1;height:auto;max-height:none}#sidebar-rating-info{color:#ffffffb3;border:1px solid var(--border-color);background-color:#0003;border-radius:6px;margin-bottom:1rem;padding:.6rem .75rem;font-size:.75rem;display:block!important}#sidebar-rating-info h5{color:var(--text-color);border-bottom:1px solid var(--border-color);margin:0 0 .4rem;padding-bottom:.2rem;font-size:.85rem;font-weight:600}#sidebar-rating-info ul{margin:0;padding:0;list-style:none}#sidebar-rating-info li{padding:.15rem 0;line-height:1.3}#sidebar-rating-info li strong{color:var(--secondary-color);font-weight:600}#end-main-row{flex-direction:row;align-items:flex-start;gap:1.5rem;max-width:900px}#end-main-row #end-solution-wrapper{flex:1;min-width:0}#end-main-row #end-rating-legend{flex:0 0 280px;margin-top:0}#screen-main .screen-content{max-width:900px}#intro-rules{flex-direction:row;align-items:flex-start;gap:1.5rem;max-width:900px;display:flex}#intro-rules>.rules-details{border:none;flex:1;min-width:0}#intro-rules>.rules-details>.details-content{display:block!important}#intro-rules>.rules-details>.rules-summary:after{content:none}#intro-rules>.rules-details>.rules-summary{cursor:default;pointer-events:none;border-bottom:1px solid var(--border-color);margin-bottom:.5rem;padding-bottom:.5rem}}