._dialogOverlay_1hqyz_3{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0009;display:flex;justify-content:center;align-items:center;z-index:9999;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}._dialogContent_1hqyz_17{background:var(--background-color, #fff);color:var(--text-color, #212121);padding:20px;border-radius:8px;min-width:300px;max-width:500px;box-shadow:0 8px 25px #0006;display:flex;flex-direction:column;text-align:left}._dialogHeader_1hqyz_30{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color, #ddd);padding-bottom:10px;margin-bottom:15px}._dialogHeader_1hqyz_30 h2{margin:0;font-size:1.5rem}._dialogCloseButton_1hqyz_44{background:none;border:none;font-size:2rem;line-height:1;cursor:pointer;color:var(--text-color, #aaa);padding:0 5px;transition:color .2s}._dialogCloseButton_1hqyz_44:hover{color:var(--text-color, #000)}._dialogBody_1hqyz_58{margin-bottom:20px;max-height:70vh;overflow-y:auto}._dialogFooter_1hqyz_64{text-align:right;border-top:1px solid var(--border-color, #eee);padding-top:15px;margin-top:auto}._primaryButton_1hqyz_71{padding:8px 20px;font-size:1rem;font-weight:700;cursor:pointer;background-color:#007bff;color:#fff;border:none;border-radius:4px;transition:background-color .2s}._primaryButton_1hqyz_71:hover{background-color:#0056b3}._completion-dialog-content_1hqyz_88{text-align:center}._stars-header_1hqyz_92{font-size:1.2em;font-weight:700;margin-bottom:10px}._stars-container_1hqyz_98{display:flex;justify-content:center;gap:10px;margin:15px 0}._star_1hqyz_92{font-size:2.5em;color:gold}._far_1hqyz_110._fa-star_1hqyz_110{color:var(--border-color, #ccc)}._completion-message_1hqyz_114{font-size:1.1em;margin:10px 0}._optimal-solution-info_1hqyz_119,._excellent-solution_1hqyz_119{font-style:italic;color:var(--text-color, #888);opacity:.7;margin-top:15px}._code-details_1hqyz_126{margin-top:20px;text-align:left;border:1px solid var(--border-color, #ddd);border-radius:4px;overflow:hidden}._code-details_1hqyz_126 summary{cursor:pointer;padding:8px;background-color:var(--button-bg-color, #f0f0f0);font-weight:700}._code-details_1hqyz_126 pre{background-color:var(--visualization-bg, #f5f5f5);padding:10px;margin:0;max-height:150px;overflow-y:auto;border-top:1px solid var(--border-color, #ddd)}._code-details_1hqyz_126 code{font-family:monospace;font-size:.9em}.snippet-toolbox{width:220px;display:flex;flex-direction:column;overflow-y:auto;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;-webkit-user-select:none;user-select:none;transition:background-color .2s,color .2s}.snippet-toolbox.light{background-color:#f5f5f5;border-right:1px solid #e0e0e0;color:#333}.snippet-toolbox.dark{background-color:#252526;border-right:1px solid #333;color:#fff}.snippet-toolbox.light .snippet-search-container{background-color:#f5f5f5;border-bottom:1px solid #e0e0e0}.snippet-toolbox.dark .snippet-search-container{background-color:#252526;border-bottom:1px solid #333}.snippet-search-container{padding:10px}.snippet-search-input{width:100%;padding:6px 8px;border-radius:4px;font-size:13px;outline:none}.snippet-toolbox.light .snippet-search-input{border:1px solid #ccc;background-color:#fff;color:#333}.snippet-toolbox.dark .snippet-search-input{border:1px solid #555;background-color:#3c3c3c;color:#fff}.snippet-search-input:focus{border-color:#007fd4}.snippet-toolbox-content{flex:1;overflow-y:auto}.snippet-toolbox.light .snippet-toolbox-content{background-color:#f5f5f5}.snippet-toolbox.dark .snippet-toolbox-content{background-color:#252526}.snippet-category-header{padding:10px 15px;cursor:pointer;font-weight:500;font-size:14px;display:flex;align-items:center;background-color:transparent;border-left:8px solid var(--category-color);transition:background-color .2s}.snippet-toolbox.light .snippet-category-header{color:#333}.snippet-toolbox.dark .snippet-category-header{color:#fff}.snippet-category-header:hover{background-color:#0000000d}.snippet-toolbox.dark .snippet-category-header:hover{background-color:#ffffff1a}.snippet-category-content{display:flex;flex-direction:column;padding:8px;gap:6px}.snippet-toolbox.light .snippet-category-content{background-color:#fafafa}.snippet-toolbox.dark .snippet-category-content{background-color:#1e1e1e}.snippet-item{padding:8px 10px;border-radius:4px;cursor:grab;font-size:13px;font-family:Monaco,Menlo,Ubuntu Mono,Consolas,source-code-pro,monospace;box-shadow:0 1px 2px #0000000d;transition:all .15s ease;position:relative;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.snippet-toolbox.light .snippet-item{background-color:#fff;border:1px solid #ddd;color:#333}.snippet-toolbox.dark .snippet-item{background-color:#2d2d2d;border:1px solid #444;color:#ccc}.snippet-item:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background-color:var(--category-color, #ccc)}.snippet-item:hover{transform:translateY(-1px);box-shadow:0 2px 4px #0000001a}.snippet-toolbox.light .snippet-item:hover{border-color:#bbb}.snippet-toolbox.dark .snippet-item:hover{border-color:#666;background-color:#333}.snippet-item:active{cursor:grabbing;transform:translateY(0)}.snippet-item-label{margin-left:8px}.horizontal-blockly-container{position:relative;display:flex;flex-direction:column;border-radius:42px;overflow:hidden;background:linear-gradient(135deg,#72d4c8,#5bbfb3);box-shadow:0 4px 20px #00000026,inset 0 2px 4px #ffffff4d}.horizontal-blockly-workspace{flex:1;width:100%;min-height:120px}.horizontal-blockly-container .injectionDiv,.horizontal-blockly-container .blocklySvg{background:transparent!important;border-radius:42px}.horizontal-blockly-container .blocklyMainBackground{fill:#ffffff26!important;rx:42px;ry:42px}.horizontal-blockly-container .blocklyFlyout{border-radius:0 0 42px 42px}.horizontal-blockly-container .blocklyFlyoutBackground{fill:#5bbfb399}.horizontal-blockly-container .blocklyScrollbarHorizontal,.horizontal-blockly-container .blocklyScrollbarVertical{display:none!important}.horizontal-blockly-controls{position:absolute;top:12px;right:24px;display:flex;align-items:center;gap:8px;z-index:100}.hb-control-btn{width:36px;height:36px;border:none;border-radius:18px;background:#ffffffe6;color:#14a795;font-size:18px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #0000001a;transition:all .2s ease}.hb-control-btn:hover{background:#fff;transform:scale(1.1);box-shadow:0 4px 12px #00000026}.hb-control-btn:active{transform:scale(.95)}.hb-reset-btn{color:#f7941d}.hb-block-counter{padding:4px 12px;background:#ffffffe6;border-radius:12px;font-size:14px;font-weight:700;color:#333}.horizontal-blockly-container .blocklyDraggable{cursor:grab}.horizontal-blockly-container .blocklyDraggable:active{cursor:grabbing}.horizontal-blockly-container .blocklyInsertionMarker>.blocklyPath{fill:#fff;fill-opacity:.5;stroke:none}.horizontal-blockly-container .blocklySelected>.blocklyPath{stroke:#fff;stroke-width:3px}.horizontal-blockly-container [data-shapes=stack]>.blocklyPath,.horizontal-blockly-container [data-shapes=hat]>.blocklyPath,.horizontal-blockly-container [data-shapes=c-block]>.blocklyPath{filter:drop-shadow(0 3px 0 rgba(0,0,0,.2))}.horizontal-blockly-container .blocklyToolboxDiv{background:transparent}@media (pointer: coarse){.horizontal-blockly-container .blocklyDraggable{touch-action:none}.hb-control-btn{width:44px;height:44px;font-size:22px}}@keyframes blockPop{0%{transform:scale(.8);opacity:0}50%{transform:scale(1.05)}to{transform:scale(1);opacity:1}}.horizontal-blockly-container .blocklyDraggable{animation:blockPop .2s ease-out}.tileImage{width:500%;height:400%;background-image:url(/assets/maze/tiles_pegman.png);background-size:100% 100%;position:absolute}.pegman{position:absolute;width:49px;height:52px;background-image:url(/assets/maze/pegman.png);background-size:1029px 52px;transition:top .1s linear,left .1s linear}.algo-renderer{padding:24px;height:100%;overflow-y:auto;color:var(--text-color, #212121);background-color:var(--background-color, #ffffff);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6}.algo-problem-statement{max-width:800px;margin:0 auto}.algo-section{margin-bottom:32px}.algo-section h3{font-size:1.25rem;font-weight:700;margin-bottom:12px;color:var(--primary-color, #1a73e8);border-bottom:2px solid var(--border-color, #f1f3f4);padding-bottom:8px;letter-spacing:-.01em}.algo-section p{margin-bottom:16px}.algo-code-block{background-color:var(--code-bg, #f8f9fa);padding:12px 16px;border-radius:8px;border:1px solid var(--border-color, #dee2e6);font-family:Fira Code,Monaco,Consolas,monospace;font-size:.9rem;overflow-x:auto}.algo-example-item{background:var(--card-bg, #ffffff);border:1px solid var(--border-color, #dee2e6);border-radius:12px;overflow:hidden;margin-bottom:20px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f}.dark .algo-example-item{background:#2d2d2d;border-color:#404040}.algo-example-header{background:var(--header-bg, #f1f3f4);padding:8px 16px;font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary, #5f6368);border-bottom:1px solid var(--border-color, #dee2e6)}.dark .algo-example-header{background:#3c3c3c;color:#a0a0a0;border-color:#404040}.algo-example-grid{display:grid;grid-template-columns:1fr 1fr;gap:0}.algo-example-column{padding:16px}.algo-example-column:first-child{border-right:1px solid var(--border-color, #dee2e6)}.dark .algo-example-column:first-child{border-color:#404040}.algo-label{display:block;font-size:.75rem;font-weight:600;color:var(--text-secondary, #70757a);margin-bottom:8px;text-transform:uppercase}.algo-renderer .algo-section ReactMarkdown pre{background:#212121;color:#f8f9fa;padding:16px;border-radius:8px;margin:16px 0}.algo-renderer .algo-section ReactMarkdown code{background:#afb8c133;padding:.2em .4em;border-radius:6px;font-size:85%}.dark .algo-renderer{background-color:#1e1e1e;color:#e0e0e0}.dark .algo-section h3{color:#8ab4f8;border-color:#3c4043}.console-panel{display:flex;flex-direction:column;height:100%;width:100%;--console-bg: #1e1e1e;--console-text: #d4d4d4;--header-bg: #252526;--border-c: #333;--hover-bg: rgba(255, 255, 255, .05);font-family:Consolas,Monaco,Courier New,monospace;font-size:13px;background-color:var(--console-bg);color:var(--console-text);border-top:1px solid var(--border-c);overflow:hidden}.console-panel.theme-light{--console-bg: #f3f3f3;--console-text: #111111;--header-bg: #e0e0e0;--border-c: #ccc;--hover-bg: rgba(0, 0, 0, .05)}.console-panel.theme-dark{--console-bg: #1e1e1e;--console-text: #d4d4d4;--header-bg: #252526;--border-c: #333;--hover-bg: rgba(255, 255, 255, .05)}.console-header{display:flex;justify-content:space-between;align-items:center;padding:4px 10px;background-color:var(--header-bg);border-bottom:1px solid var(--border-c);height:28px;flex-shrink:0;-webkit-user-select:none;user-select:none}.console-title{font-weight:700;color:var(--console-text);opacity:.8;font-size:11px;text-transform:uppercase}.console-actions{display:flex;gap:8px}.console-action-btn{background:none;border:none;color:var(--console-text);cursor:pointer;padding:2px;font-size:12px;opacity:.7;transition:opacity .2s;display:flex;align-items:center;justify-content:center}.console-action-btn:hover{opacity:1;background-color:var(--hover-bg);border-radius:3px}.console-content{flex:1;overflow-y:auto;padding:4px 0}.console-empty{padding:8px 10px;color:#666;font-style:italic}.console-line{padding:2px 10px;border-bottom:1px solid transparent;display:flex;gap:8px;line-height:1.4}.console-line:hover{background-color:var(--hover-bg)}.console-line.error{color:#f48771;background-color:#ff00001a}.console-line.warn{color:#cca700}.console-line.info{color:#75beff}.console-timestamp{color:#666;font-size:11px;flex-shrink:0;white-space:nowrap}.console-message{white-space:pre-wrap;word-break:break-all}.test-case-panel{display:flex;flex-direction:column;height:100%;width:100%;font-family:inherit;background-color:var(--panel-bg, #111111);color:var(--text-color, #f8f9fa);border-top:1px solid var(--border-color, #333);overflow:hidden}.test-case-panel.theme-light{--panel-bg: #f8f9fa;--text-color: #212529;--border-color: #dee2e6;--header-bg: #e9ecef}.test-case-panel.theme-dark{--panel-bg: #1e1e1e;--text-color: #d4d4d4;--border-color: #333;--header-bg: #252526}.test-case-header{padding:8px 12px;background-color:var(--header-bg);border-bottom:1px solid var(--border-color);font-size:11px;text-transform:uppercase;font-weight:700;opacity:.8}.test-case-tabs{display:flex;background-color:var(--header-bg);border-bottom:1px solid var(--border-color);overflow-x:auto}.test-case-tab{padding:8px 16px;background:none;border:none;border-right:1px solid var(--border-color);color:var(--text-color);cursor:pointer;font-size:13px;display:flex;align-items:center;gap:8px;opacity:.7;white-space:nowrap}.test-case-tab:hover{background-color:#ffffff0d;opacity:1}.test-case-tab.active{background-color:var(--panel-bg);border-bottom:2px solid #007bff;opacity:1}.status-icon{font-weight:700}.test-case-tab.pass .status-icon{color:#28a745}.test-case-tab.fail .status-icon{color:#dc3545}.test-case-tab.error .status-icon{color:#ffc107}.test-case-tab.pending .status-icon{color:#6c757d}.test-case-content{flex:1;padding:16px;overflow-y:auto}.test-case-details{display:flex;flex-direction:column;gap:16px}.detail-section{display:flex;flex-direction:column;gap:8px}.detail-label{font-size:12px;text-transform:uppercase;font-weight:700;opacity:.6}.detail-value{font-weight:700}.status-pass{color:#28a745}.status-fail{color:#dc3545}.status-error{color:#ffc107}.status-pending{color:#6c757d}.detail-code{background-color:#0003;padding:12px;border-radius:4px;font-family:Consolas,Monaco,Courier New,monospace;font-size:13px;white-space:pre-wrap;margin:0;border:1px solid var(--border-color)}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.error-msg .detail-code{color:#dc3545;background-color:#dc35451a}.hidden-case-msg{font-style:italic;opacity:.7;padding:12px;background-color:#ffffff0d;border-radius:4px}.test-case-empty{display:flex;align-items:center;justify-content:center;height:100px;opacity:.5;font-style:italic}.blockly-renderer-container .injectionDiv{width:100%!important;height:100%!important}.blockly-renderer-container svg.blocklySvg{width:100%!important;height:100%!important;min-height:150px!important;background-color:transparent!important}.blockly-renderer-container.frameless{border:none!important;background-color:transparent!important;box-shadow:none!important}.blockly-renderer-container.frameless .injectionDiv{background-color:transparent!important}.blockly-mini-toolbar{position:absolute;top:12px;right:12px;display:flex;flex-direction:row;gap:8px;z-index:50}.blockly-mini-toolbar button{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background-color:#ffffffd9;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border:1px solid rgba(0,0,0,.1);border-radius:8px;cursor:pointer;font-size:16px;color:#444c56;box-shadow:0 2px 6px #00000014;transition:all .2s cubic-bezier(.4,0,.2,1);font-weight:600;white-space:nowrap;line-height:1}:where(.theme-dark,.dark-mode) .blockly-mini-toolbar button{background-color:#30363dcc;border-color:#f0f6fc1a;color:#c9d1d9}.blockly-mini-toolbar button:hover{background-color:#fff;color:#0969da;border-color:#0969da;transform:scale(1.05);box-shadow:0 4px 12px #0969da33}:where(.theme-dark,.dark-mode) .blockly-mini-toolbar button:hover{background-color:#1f6feb;color:#fff;border-color:#58a6ff}.blockly-mini-toolbar button.active{background-color:#0969da;color:#fff;border-color:#0969da}.blockly-code-view{position:absolute;top:0;left:0;width:100%;height:100%;z-index:5;background-color:#0d1117;border-radius:12px;padding:12px;overflow:auto}.blockly-renderer-container .blocklyBlockCanvas{visibility:visible!important;opacity:1!important}.blockly-renderer-container .blocklyBlock{visibility:visible!important;opacity:1!important;display:block!important}.blocklyScrollbarBackground,.blocklyScrollbarHandle{display:none!important;fill-opacity:0}.guide-renderer{--guide-bg: #ffffff;--guide-text: #24292e;--guide-border: #eaecef;--guide-heading: #1a1f23;--guide-primary: #0969da;--guide-secondary-bg: #f6f8fa;--guide-code-bg: rgba(27, 31, 35, .05);--guide-blockquote-color: #57606a;--guide-blockquote-border: #d0d7de;--guide-blockquote-bg: #f6f8fa;--guide-note-bg: #ddf4ff;--guide-note-border: #0969da;--guide-card-bg: #ffffff;--guide-card-shadow: 0 4px 12px rgba(0, 0, 0, .08);--guide-hover-bg: #f3f4f6;--guide-blockly-canvas-bg: #ffffff;--guide-blockly-border: #d0d7de;padding:32px 20px;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;color:var(--guide-text);background-color:transparent;overflow-y:auto;height:100%;line-height:1.7;font-size:16px;box-sizing:border-box;scroll-behavior:smooth;max-width:100%;margin:0 auto}@media (max-width: 1024px){.guide-renderer{padding:24px 20px}}:where(.theme-dark,.dark-mode) .guide-renderer{--guide-bg: #0d1117;--guide-text: #c9d1d9;--guide-border: #30363d;--guide-heading: #f0f6fc;--guide-primary: #58a6ff;--guide-secondary-bg: #161b22;--guide-code-bg: rgba(110, 118, 129, .4);--guide-blockquote-color: #8b949e;--guide-blockquote-border: #30363d;--guide-blockquote-bg: #161b22;--guide-note-bg: rgba(56, 139, 253, .1);--guide-note-border: #1f6feb;--guide-card-bg: #161b22;--guide-card-shadow: 0 8px 24px rgba(0, 0, 0, .4);--guide-hover-bg: #21262d;--guide-blockly-canvas-bg: rgba(255, 255, 255, .96);--guide-blockly-border: #444c56}.guide-renderer *{max-width:100%;box-sizing:border-box}.guide-renderer h1{font-size:32px;border-bottom:2px solid var(--guide-border);padding-bottom:.4em;margin-top:0;margin-bottom:32px;color:var(--guide-primary);font-weight:800;letter-spacing:-.02em;background:linear-gradient(135deg,var(--guide-primary),#3b82f6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.guide-renderer h2{font-size:24px;margin-top:48px;margin-bottom:20px;font-weight:700;color:var(--guide-heading);border-bottom:1px solid var(--guide-border);padding-bottom:.3em;display:flex;align-items:center}.guide-renderer h3{font-size:20px;margin-top:32px;margin-bottom:14px;font-weight:600;color:var(--guide-heading)}.guide-renderer p{margin-bottom:20px}.guide-renderer strong{color:var(--guide-heading);font-weight:600}.guide-renderer blockquote{margin:24px 0;padding:12px 20px;color:var(--guide-blockquote-color);border-left:4px solid var(--guide-blockquote-border);background-color:var(--guide-blockquote-bg);border-radius:6px;font-style:italic;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.guide-renderer code{background-color:var(--guide-code-bg);padding:.2em .4em;border-radius:6px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,Liberation Mono,monospace;font-size:.9em}.guide-renderer ul,.guide-renderer ol{padding-left:1.5rem;margin-bottom:20px}.guide-renderer li{margin-bottom:.5em}.guide-renderer img{height:auto;border-radius:12px;box-shadow:var(--guide-card-shadow);margin:24px auto;display:block;max-width:100%;transition:transform .3s ease}.guide-renderer img:hover{transform:scale(1.01)}.blockly-xml-block{margin:28px 0;position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--guide-blockly-border);box-shadow:var(--guide-card-shadow);background-color:var(--guide-blockly-canvas-bg);transition:transform .2s ease,box-shadow .2s ease}.blockly-xml-block:hover{box-shadow:0 12px 32px #0000001f}.btn-run-code{background:linear-gradient(135deg,#2ea44f,#238636);color:#fff;border:none;border-radius:6px;padding:8px 18px;font-size:14px;cursor:pointer;font-weight:600;box-shadow:0 4px 12px #2386364d;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;gap:6px}.btn-run-code:hover{transform:translateY(-2px);box-shadow:0 6px 16px #23863666;filter:brightness(1.1)}.btn-run-code:active{transform:translateY(0)}.btn-edit-block{background:linear-gradient(135deg,#0969da,#0550ae);color:#fff;border:none;border-radius:6px;padding:8px 18px;font-size:14px;cursor:pointer;font-weight:600;box-shadow:0 4px 12px #0969da4d;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;gap:6px}.btn-edit-block:hover{transform:translateY(-2px);box-shadow:0 6px 16px #0969da66;filter:brightness(1.1)}.btn-edit-block:active{transform:translateY(0)}.blockly-xml-block{transition:height .4s cubic-bezier(.4,0,.2,1)}.markdown-renderer{line-height:1.6;color:inherit;font-size:1rem}.markdown-renderer h1,.markdown-renderer h2,.markdown-renderer h3,.markdown-renderer h4{margin-top:1.5em;margin-bottom:.5em;font-weight:700;line-height:1.25}.markdown-renderer h1{font-size:1.75em;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.3em}.markdown-renderer h2{font-size:1.5em;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:.3em}.markdown-renderer h3{font-size:1.25em}.markdown-renderer p{margin-bottom:1em}.markdown-renderer ul,.markdown-renderer ol{margin-bottom:1em;padding-left:2em}.markdown-renderer li{margin-bottom:.25em}.markdown-renderer code{padding:.2em .4em;margin:0;font-size:85%;white-space:break-spaces;background-color:#afb8c133;border-radius:6px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,Liberation Mono,monospace}.markdown-renderer pre{padding:16px;overflow:auto;font-size:85%;line-height:1.45;background-color:#afb8c11a;border-radius:12px;margin-bottom:1em}.markdown-renderer pre code{padding:0;margin:0;font-size:inherit;word-break:normal;white-space:pre;background:transparent;border:0}.markdown-renderer blockquote{padding:0 1em;color:#8b949e;border-left:.25em solid #30363d;margin-bottom:1em}.markdown-renderer table{display:block;width:100%;width:max-content;max-width:100%;overflow:auto;margin-bottom:1em;border-spacing:0;border-collapse:collapse}.markdown-renderer table th,.markdown-renderer table td{padding:6px 13px;border:1px solid rgba(255,255,255,.1)}.markdown-renderer table tr{background-color:transparent;border-top:1px solid rgba(255,255,255,.1)}.markdown-renderer img{max-width:100%;box-sizing:content-box;background-color:transparent}.quest-sidebar{width:280px;height:100vh;background-color:var(--color-background-secondary);border-right:1px solid var(--color-border);display:flex;flex-direction:column;transition:width .25s ease-in-out;overflow:hidden}.sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:15px;border-bottom:1px solid var(--color-border);flex-shrink:0}.sidebar-header h2{margin:0;font-size:1.2rem;white-space:nowrap;color:var(--color-text-primary)}.toggle-button{background:none;border:none;cursor:pointer;font-size:1.2rem;padding:5px;color:var(--color-text-secondary);transition:transform .25s ease-in-out}.quest-list-scrollable{flex-grow:1;overflow-y:auto;padding:10px}.game-group{margin-bottom:20px}.game-group-title{font-size:.9em;text-transform:uppercase;color:var(--color-text-secondary);font-weight:700;margin:10px 0;padding:5px 4px;white-space:nowrap}.quest-item{display:flex;align-items:center;padding:10px 8px;margin-bottom:5px;border-radius:4px;cursor:pointer;transition:background-color .2s ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--color-text-primary)}.quest-item:hover{background-color:var(--color-background-hover)}.quest-item.active{background-color:var(--color-primary-container);color:var(--color-on-primary-container);font-weight:700;border-left:4px solid var(--color-primary, #007bff);padding-left:4px}.quest-level{display:flex;align-items:center;justify-content:center;width:24px;height:24px;min-width:24px;margin-right:12px;border-radius:50%;background-color:var(--color-background-tertiary);color:var(--color-text-secondary);font-weight:700;font-size:.85em}.sidebar-footer{padding:15px;border-top:1px solid var(--border-color);flex-shrink:0}.quest-sidebar.collapsed{width:60px}.quest-sidebar.collapsed .sidebar-header{justify-content:center}.quest-sidebar.collapsed .toggle-button{transform:rotate(180deg)}.quest-sidebar.collapsed .quest-item{justify-content:center;padding:10px 0}.quest-sidebar.collapsed .quest-title,.quest-sidebar.collapsed .game-group-title{display:none}.quest-sidebar.collapsed .quest-level{margin-right:0}.quest-sidebar.collapsed .sidebar-footer{padding:10px;display:flex;justify-content:center}.quest-sidebar.collapsed .sidebar-footer .control-group{justify-content:center}.quest-sidebar.collapsed .sidebar-footer .themed-select{display:none}:root,.theme-light{--background-color: #ffffff;--text-color: #212121;--border-color: #ddd;--button-bg-color: #f0f0f0;--button-hover-bg-color: #e0e0e0;--visualization-bg: #f5f5f5}.theme-dark{--background-color: #1e1e1e;--text-color: #f0f0f0;--border-color: #444;--button-bg-color: #333;--button-hover-bg-color: #444;--visualization-bg: #282828}.app-container{width:100vw;height:100vh;display:flex;flex-direction:row;background-color:var(--background-color);color:var(--text-color)}.main-content-area{flex-grow:1;height:100%;min-width:0}.optimal-solution-info,.excellent-solution{font-style:italic;color:var(--text-color, #888);opacity:.8;margin-top:15px}.code-details summary{cursor:pointer;padding:8px;background-color:var(--button-bg-color, #f0f0f0);font-weight:700;opacity:.9}.code-details code{font-family:monospace;font-size:.9em;color:var(--text-color)}.practice-main{display:flex;align-items:center;justify-content:center}.practice-empty-state{text-align:center;padding:2rem;max-width:500px}.practice-empty-state h2{font-size:1.75rem;margin-bottom:.5rem}.practice-empty-state p{opacity:.7;margin-bottom:2rem}.practice-info{display:flex;flex-direction:column;gap:1rem;text-align:left}.practice-info .info-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--button-bg-color);border-radius:8px}.practice-info .icon{font-size:1.5rem}.practice-exercise-view{width:100%;max-width:800px;padding:2rem}.practice-exercise-view .exercise-header{margin-bottom:1.5rem}.practice-exercise-view .exercise-header h3{font-size:1.5rem;margin:0 0 .5rem}.practice-exercise-view .exercise-meta{display:flex;align-items:center;gap:.75rem}.concept-badge{background:var(--button-bg-color);padding:.25rem .75rem;border-radius:1rem;font-size:.85rem;text-transform:capitalize}.exercise-placeholder{min-height:400px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--visualization-bg);border-radius:12px;border:2px dashed var(--border-color);margin-bottom:1.5rem}.exercise-placeholder p{margin:.5rem 0}.exercise-placeholder .hint{font-size:.9rem;opacity:.6;font-style:italic}.exercise-actions{display:flex;gap:1rem;justify-content:center}.btn-complete,.btn-skip{padding:1rem 2rem;border-radius:12px;border:none;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-complete{background:linear-gradient(135deg,#10b981,#059669);color:#fff}.btn-complete:hover{transform:translateY(-2px);box-shadow:0 4px 12px #10b98166}.btn-skip{background:var(--button-bg-color);color:var(--text-color)}:root{--app-guide-overlay-bg: rgba(0, 0, 0, .4);--app-guide-container-bg: #ffffff;--app-guide-header-bg: rgba(255, 255, 255, .95);--app-guide-text: #212121;--app-guide-border: #e1e4e8;--app-guide-close-icon: #586069;--app-guide-close-btn-hover: #f6f8fa}.theme-dark{--app-guide-overlay-bg: rgba(0, 0, 0, .7);--app-guide-container-bg: #0d1117;--app-guide-header-bg: rgba(13, 17, 23, .95);--app-guide-text: #c9d1d9;--app-guide-border: #30363d;--app-guide-close-icon: #8b949e;--app-guide-close-btn-hover: #161b22}.guide-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background-color:var(--app-guide-overlay-bg);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:1000;display:flex;justify-content:center;align-items:center;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.guide-modal{width:90%;max-width:1200px;height:90%;background-color:var(--app-guide-container-bg);display:flex;flex-direction:column;border-radius:20px;border:1px solid var(--app-guide-border);box-shadow:0 20px 60px #0006;animation:modalSlideIn .3s cubic-bezier(.16,1,.3,1)}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@media (max-width: 1024px){.guide-modal{width:95%;height:95%;max-height:none}}.guide-header{padding:16px 32px;border-bottom:1px solid var(--app-guide-border);display:flex;justify-content:space-between;align-items:center;background-color:var(--app-guide-header-bg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 1px 3px #0000000d;flex-shrink:0;z-index:10}.guide-title{display:flex;align-items:center;gap:12px}.guide-icon{font-size:24px}.guide-title h2{margin:0;font-size:20px;font-weight:600;color:var(--app-guide-text)}.guide-close-btn{background:transparent;color:var(--app-guide-close-icon);border:1px solid var(--app-guide-border);border-radius:8px;width:36px;height:36px;padding:0;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.guide-close-btn:hover{background-color:var(--app-guide-close-btn-hover);border-color:var(--guide-primary, #0366d6);color:var(--guide-primary, #0366d6)}.guide-body{flex:1;overflow-y:auto;padding:0;width:100%;display:flex;justify-content:center}.guide-body::-webkit-scrollbar{width:8px}.guide-body::-webkit-scrollbar-track{background:transparent}.guide-body::-webkit-scrollbar-thumb{background-color:#0000001a;border-radius:20px;border:2px solid transparent;background-clip:content-box}.theme-dark .guide-body::-webkit-scrollbar-thumb{background-color:#ffffff1a}.guide-body::-webkit-scrollbar-thumb:hover{background-color:#0003}.theme-dark .guide-body::-webkit-scrollbar-thumb:hover{background-color:#fff3}.guide-content-wrapper{width:96%;max-width:1500px}.guide-loading{padding:40px;text-align:center;color:var(--app-guide-text);opacity:.7}.practice-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:400px;gap:1rem;color:var(--text-color);opacity:.8}.practice-loading .spinner{width:40px;height:40px;border:4px solid var(--button-bg-color);border-top:4px solid #10b981;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.sync-page{width:100%;min-height:100vh;display:flex;justify-content:center;align-items:center;background:var(--background-color);color:var(--text-color);padding:20px;box-sizing:border-box;transition:background .3s ease,color .3s ease}.sync-page.theme-dark{background:linear-gradient(135deg,#1a1a2e,#16213e,#0f3460)}.sync-container{background:var(--visualization-bg);border-radius:16px;padding:40px;max-width:500px;width:100%;box-shadow:0 10px 30px #0000001a;border:1px solid var(--border-color)}.sync-page.theme-dark .sync-container{background:#1e1e2ef2;box-shadow:0 20px 60px #0006;border:1px solid rgba(255,255,255,.1)}.sync-header{text-align:center;margin-bottom:30px}.sync-header h1{margin:0 0 12px;font-size:28px;color:var(--text-color)}.sync-page.theme-dark .sync-header h1{color:#fff}.sync-mode-badge{display:inline-block;padding:6px 14px;background:var(--button-bg-color);color:var(--text-color);border-radius:20px;font-size:13px;font-weight:500}.sync-page.theme-dark .sync-mode-badge{background:#6366f133;color:#a5b4fc}.quest-info-card{background:var(--button-bg-color);border-radius:12px;padding:20px;margin-bottom:24px;border:1px solid var(--border-color)}.sync-page.theme-dark .quest-info-card{background:#ffffff0d;border:1px solid rgba(255,255,255,.08)}.quest-info-card h2{margin:0 0 12px;font-size:18px;color:var(--text-color);word-break:break-all}.sync-page.theme-dark .quest-info-card h2{color:#fff}.quest-meta{display:flex;flex-wrap:wrap;gap:12px}.meta-item{font-size:13px;color:var(--text-color);opacity:.8}.sync-page.theme-dark .meta-item{color:#a0a0b0;opacity:1}.meta-item strong{color:var(--text-color)}.sync-page.theme-dark .meta-item strong{color:#c0c0d0}.sync-actions{display:flex;flex-direction:column;gap:12px}.sync-btn{padding:14px 24px;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;border:none;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:8px}.sync-btn.primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff}.sync-btn.primary:hover{background:linear-gradient(135deg,#818cf8,#a78bfa);transform:translateY(-2px);box-shadow:0 8px 20px #6366f166}.sync-btn.secondary{background:var(--button-bg-color);color:var(--text-color);border:1px solid var(--border-color)}.sync-btn.secondary:hover{background:var(--button-hover-bg-color);border-color:var(--border-color)}.sync-page.theme-dark .sync-btn.secondary{background:#ffffff14;color:#c0c0d0;border:1px solid rgba(255,255,255,.15)}.sync-page.theme-dark .sync-btn.secondary:hover{background:#ffffff1f;border-color:#ffffff40}.sync-hint{margin-top:20px;text-align:center;font-size:13px;color:var(--text-color);opacity:.7}.sync-page.theme-dark .sync-hint{color:#808090;opacity:1}.sync-error{text-align:center;padding:40px 20px}.sync-error p{color:#ef5350;margin-bottom:20px;font-size:15px}.sync-loading{text-align:center;padding:40px;color:var(--text-color);opacity:.6;font-size:16px}.sync-player-wrapper{width:100%;height:100vh;display:flex;flex-direction:column;background:var(--background-color);color:var(--text-color)}.sync-player-header{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--visualization-bg);border-bottom:1px solid var(--border-color)}.sync-player-wrapper.theme-dark .sync-player-header{background:#1e1e2e;border-bottom:1px solid rgba(255,255,255,.1)}.sync-back-btn{padding:8px 16px;background:var(--button-bg-color);border:1px solid var(--border-color);border-radius:6px;color:var(--text-color);font-size:13px;cursor:pointer;transition:all .2s}.sync-back-btn:hover{background:var(--button-hover-bg-color);border-color:var(--border-color)}.sync-player-wrapper.theme-dark .sync-back-btn{background:#ffffff14;border:1px solid rgba(255,255,255,.15);color:#c0c0d0}.sync-player-wrapper.theme-dark .sync-back-btn:hover{background:#ffffff1f}.sync-badge{padding:4px 10px;background:#fbbf2433;color:#fbbf24;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.leaderboard-page{padding:2rem;max-width:1000px;margin:0 auto;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:#f8fafc;min-height:100vh}.leaderboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;border-bottom:2px solid #e2e8f0;padding-bottom:1rem}.leaderboard-header h1{color:#1e293b;font-size:2rem;font-weight:700}.problem-selector{display:flex;align-items:center;gap:1rem}.problem-selector label{font-weight:600;color:#64748b}.problem-selector select{padding:.5rem 1rem;border-radius:.5rem;border:1px solid #cbd5e1;background-color:#fff;font-size:1rem;color:#1e293b;cursor:pointer}.table-container{background-color:#fff;border-radius:1rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;overflow:hidden}.leaderboard-table{width:100%;border-collapse:collapse;text-align:left}.leaderboard-table th{background-color:#f1f5f9;padding:1rem;font-weight:600;color:#475569;text-transform:uppercase;font-size:.875rem;letter-spacing:.025em}.leaderboard-table td{padding:1.25rem 1rem;border-bottom:1px solid #f1f5f9}.rank-cell{font-weight:700;font-size:1.125rem;color:#64748b;width:80px;text-align:center}.top-rank.rank-1{background-color:#fefce8}.top-rank.rank-2{background-color:#f8fafc}.top-rank.rank-3{background-color:#fffaf0}.top-rank.rank-1 .rank-cell{color:#854d0e}.top-rank.rank-2 .rank-cell{color:#334155}.top-rank.rank-3 .rank-cell{color:#9a3412}.name-cell .full-name{font-weight:600;color:#1e293b;font-size:1.125rem}.school-cell div{color:#64748b;font-size:.9375rem}.grade-badge{display:inline-block;padding:.25rem .5rem;background-color:#f1f5f9;border-radius:.375rem;font-size:.75rem;font-weight:600;color:#475569;margin-top:.25rem}.score-cell{font-size:1.25rem;font-weight:700}.score-value{color:#2563eb}.total-divider{color:#cbd5e1;margin:0 .25rem}.total-score{color:#94a3b8;font-size:1rem;font-weight:500}.penalty-cell{color:#ef4444;font-weight:600;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.loading-state,.empty-state{padding:4rem;text-align:center;color:#64748b;font-size:1.125rem}.error-alert{background-color:#fef2f2;border:1px solid #fee2e2;color:#991b1b;padding:1rem;border-radius:.5rem;margin-bottom:1.5rem}.leaderboard-footer{margin-top:2rem;text-align:center;color:#94a3b8;font-size:.875rem}@media (max-width: 768px){.leaderboard-header{flex-direction:column;align-items:flex-start;gap:1.5rem}.leaderboard-table th:nth-child(3),.leaderboard-table td:nth-child(3){display:none}}.scratch-uploader-container{display:flex;flex-direction:column;gap:16px;width:100%}.method-switcher{display:flex;background:#ffffff0d;padding:4px;border-radius:12px;gap:4px}.method-btn{flex:1;padding:8px;border-radius:8px;font-size:.8rem;font-weight:700;color:#ffffff80;background:transparent;border:none;cursor:pointer;transition:all .2s ease}.method-btn:hover{color:#fff;background:#ffffff08}.method-btn.active{background:#ffffff1a;color:#fff;box-shadow:0 4px 12px #0000001a}.uploader-body{min-height:120px;display:flex;flex-direction:column}.upload-zone{flex:1;border:2px dashed rgba(255,255,255,.1);border-radius:16px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;cursor:pointer;transition:all .2s ease;gap:12px}.upload-zone:hover{border-color:var(--accent-color);background:#0088ff08}.upload-zone.file-selected{border-color:var(--success-color);background:#4caf5008}.upload-icon{color:var(--accent-color)}.upload-prompt p{font-size:.9rem;color:#fff6;margin:0}.selected-file-info{text-align:center;max-width:100%}.file-name{display:block;font-weight:600;color:#fff;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-size{font-size:.75rem;color:#fff6}.url-fetch-area{display:flex;flex-direction:column;gap:12px}.url-input-group{display:flex;gap:8px}.url-input{flex:1;background:#0003;border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:10px 14px;color:#fff;font-size:.9rem;outline:none}.url-input:focus{border-color:var(--accent-color)}.fetch-btn{background:var(--accent-color);color:#fff;border:none;border-radius:10px;padding:0 16px;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .2s}.fetch-btn:hover:not(:disabled){filter:brightness(1.2)}.fetched-preview{display:flex;align-items:center;gap:8px;padding:10px;background:#4caf501a;border-radius:8px;font-size:.85rem}.check-icon{color:var(--success-color);font-weight:800}.uploader-actions{display:flex;gap:12px}.check-btn,.submit-btn{flex:1;padding:12px;border-radius:12px;font-weight:750;font-size:.9rem;cursor:pointer;transition:all .2s;border:none}.check-btn{background:#ffffff14;color:#fff}.check-btn:hover:not(:disabled){background:#ffffff1f}.submit-btn{background:linear-gradient(135deg,var(--accent-color),#0052D1);color:#fff;box-shadow:0 4px 12px #08f3}.submit-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 16px #0088ff4d}.submit-btn:disabled{background:#ffffff0d;color:#fff3;box-shadow:none;cursor:not-allowed}.uploader-error-msg{padding:10px;background:#ff4d4d1a;color:#ff4d4d;border-radius:8px;font-size:.8rem;border-left:3px solid #ff4d4d}.dot-pulse{width:6px;height:6px;background:#fff;border-radius:50%;animation:pulse 1s infinite}@keyframes pulse{0%{transform:scale(.8);opacity:.5}50%{transform:scale(1.2);opacity:1}to{transform:scale(.8);opacity:.5}}.testcase-grid-container{display:flex;flex-direction:column;gap:20px;width:100%}.score-viz{display:flex;align-items:center;gap:16px;background:#ffffff08;padding:16px;border-radius:16px;border:1px solid rgba(255,255,255,.05)}.score-circle{width:60px;height:60px}.circular-chart{display:block;margin:0 auto;max-width:100%}.circle-bg{fill:none;stroke:#ffffff0d;stroke-width:3.8}.circle{fill:none;stroke:var(--success-color);stroke-width:3.8;stroke-linecap:round;transition:stroke-dasharray 1s ease}.percentage{fill:#fff;font-size:.55rem;font-weight:800;text-anchor:middle}.score-text{flex:1}.main-score{font-size:1.4rem;font-weight:800;color:#fff}.max-score{font-size:.9rem;color:#fff6}.score-subtext{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:#ffffff4d;font-weight:600}.testcase-grid-layout{display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:12px}.testcase-card{background:#ffffff08;border:1px solid rgba(255,255,255,.05);border-radius:12px;padding:10px;display:flex;flex-direction:column;align-items:center;gap:4px;transition:all .2s ease;position:relative;overflow:hidden}.testcase-card:hover{background:#ffffff0d;transform:translateY(-2px)}.tc-header{width:100%;display:flex;justify-content:space-between;align-items:center}.tc-num{font-size:.65rem;font-weight:800;color:#ffffff4d;text-transform:uppercase}.tc-sample{font-size:.55rem;font-weight:800;color:var(--accent-color);text-transform:uppercase;background:#0088ff1a;padding:1px 4px;border-radius:3px}.tc-status-icon{font-size:1.2rem;margin:4px 0}.tc-score{font-size:.7rem;font-weight:700;color:#ffffff80}.status-pass .tc-status-icon{color:var(--success-color)}.status-fail .tc-status-icon{color:var(--error-color)}.status-tle .tc-status-icon{color:var(--warning-color)}.status-error .tc-status-icon{color:var(--error-color)}.status-pass{border-bottom:3px solid var(--success-color)}.status-fail{border-bottom:3px solid var(--error-color)}.status-tle{border-bottom:3px solid var(--warning-color)}.status-error{border-bottom:3px solid var(--error-color)}.testcase-legend{display:flex;gap:16px;justify-content:center;padding:12px;background:#ffffff05;border-radius:12px}.legend-item{display:flex;align-items:center;gap:6px;font-size:.75rem;color:#fff6;font-weight:600}.dot{width:6px;height:6px;border-radius:50%}.dot.pass{background:var(--success-color)}.dot.fail{background:var(--error-color)}.dot.tle{background:var(--warning-color)}.dot.error{background:var(--error-color)}.tc-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.1);border-top-color:var(--accent-color);border-radius:50%;animation:tc-spin 1s linear infinite}@keyframes tc-spin{to{transform:rotate(360deg)}}.testcase-grid-empty,.testcase-grid-error{padding:20px;text-align:center;color:#ffffff4d;font-size:.9rem}.scratch-quest-panel{display:flex;flex-direction:column;height:100%;overflow:hidden;color:#fff}.panel-layout{display:grid;grid-template-columns:1fr 400px;gap:24px;height:100%;padding:24px;overflow:hidden}.column-problem{display:flex;flex-direction:column;gap:20px;overflow-y:auto;padding-right:8px}.column-problem::-webkit-scrollbar{width:6px}.column-problem::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}.problem-header{margin-bottom:8px}.problem-title{font-size:1.8rem;font-weight:800;margin:0 0 12px;background:linear-gradient(to right,#fff,#ffffffb3);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.best-score-container{display:inline-flex;flex-direction:column;background:#4caf501a;border:1px solid rgba(76,175,80,.2);padding:8px 16px;border-radius:12px}.best-score-container .label{font-size:.65rem;font-weight:800;text-transform:uppercase;color:var(--success-color);letter-spacing:.05em}.best-score-container .value{font-size:1.1rem;font-weight:800;color:#fff}.section-title{font-size:.75rem;font-weight:800;text-transform:uppercase;color:#fff6;letter-spacing:.1em;margin-bottom:12px}.problem-description-box{font-size:1rem;line-height:1.6;color:#ffffffd9;background:#ffffff08;padding:24px;border-radius:20px;border:1px solid rgba(255,255,255,.05)}.no-desc{color:#ffffff4d;font-style:italic}.column-submission{display:flex;flex-direction:column;gap:20px;height:100%;overflow-y:auto}.submission-stack{display:flex;flex-direction:column;gap:20px}.glass-card{background:#ffffff08;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.05);border-radius:24px;padding:24px;display:flex;flex-direction:column;gap:16px;transition:all .3s ease}.glass-card:hover{border-color:#ffffff1a;background:#ffffff0a}.card-header{display:flex;align-items:center;gap:12px}.card-header .icon{font-size:1.2rem}.card-header h3{font-size:1rem;font-weight:700;margin:0;flex:1}.dry-badge{font-size:.65rem;font-weight:800;padding:2px 8px;background:#ffc10726;color:#ffc107;border:1px solid rgba(255,193,7,.3);border-radius:6px}.result-container{display:flex;flex-direction:column;gap:12px}.submission-ts{font-size:.75rem;color:#fff6;text-align:right}.loading-state{padding:40px 0;display:flex;flex-direction:column;align-items:center;gap:16px;color:#ffffff80}.spinner{width:32px;height:32px;border:3px solid rgba(255,255,255,.1);border-top-color:var(--accent-color);border-radius:50%;animation:spin 1s linear infinite}.empty-state{padding:40px 20px;text-align:center;color:#ffffff4d;font-size:.9rem;line-height:1.5;border:2px dashed rgba(255,255,255,.05);border-radius:16px}@media (max-width: 1024px){.panel-layout{grid-template-columns:1fr;overflow-y:auto}.column-problem,.column-submission{overflow-y:visible}}.practice-sidebar{width:300px;height:100vh;background-color:var(--background-color);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:width .25s ease-in-out;overflow:hidden}.practice-sidebar.collapsed{width:50px}.practice-sidebar.expanded{width:480px}.practice-sidebar .sidebar-header{display:flex;justify-content:space-between;align-items:center;padding:12px 15px;border-bottom:1px solid var(--border-color);flex-shrink:0}.practice-sidebar .sidebar-header h2{margin:0;font-size:1.1rem;white-space:nowrap;color:var(--text-color)}.practice-sidebar .header-actions{display:flex;gap:8px}.practice-sidebar .toggle-button,.practice-sidebar .expand-button{background:none;border:none;cursor:pointer;font-size:1rem;padding:5px 8px;color:var(--text-color);opacity:.7;border-radius:4px;transition:all .2s}.practice-sidebar .toggle-button:hover,.practice-sidebar .expand-button:hover{opacity:1;background:var(--button-bg-color)}.practice-sidebar .sidebar-content{flex-grow:1;overflow-y:auto;display:flex;flex-direction:column}.quick-start-section{padding:12px}.btn-challenge-big{width:100%;display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:12px;border:none;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;cursor:pointer;transition:all .2s;text-align:left}.btn-challenge-big:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #f59e0b66}.btn-challenge-big:disabled{opacity:.6;cursor:not-allowed}.challenge-icon{font-size:2rem}.challenge-text{display:flex;flex-direction:column;gap:2px}.challenge-text strong{font-size:1rem}.challenge-text small{font-size:.75rem;opacity:.9}.section-divider{display:flex;align-items:center;padding:8px 12px;gap:12px}.section-divider:before,.section-divider:after{content:"";flex:1;height:1px;background:var(--border-color)}.section-divider span{font-size:.75rem;text-transform:uppercase;letter-spacing:.5px;opacity:.6;white-space:nowrap}.config-section{border-bottom:1px solid var(--border-color)}.config-section .section-header{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;cursor:pointer;background:var(--button-bg-color);font-weight:600;font-size:.9rem}.config-section .section-header:hover{background:var(--button-hover-bg-color)}.config-content{padding:12px;animation:slideDown .2s ease}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.topics-list{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}.topics-list.expanded{display:grid;grid-template-columns:1fr 1fr;gap:10px}.topic-card{background:var(--button-bg-color);border:1px solid var(--border-color);border-radius:8px;overflow:hidden;transition:all .2s}.topic-card.enabled{border-color:#4f46e5}.theme-dark .topic-card.enabled{border-color:#818cf8}.topic-header{display:flex;align-items:center;gap:8px;padding:10px 12px;cursor:pointer}.topic-header:hover{background:var(--button-hover-bg-color)}.topic-header input[type=checkbox]{width:16px;height:16px;accent-color:#4f46e5}.topic-icon{font-size:1.1rem}.topic-name{font-size:.9rem;font-weight:500;text-transform:capitalize}.topic-settings{padding:8px 12px 12px;border-top:1px solid var(--border-color);display:flex;flex-direction:column;gap:8px}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:8px}.setting-label{font-size:.8rem;opacity:.8}.count-control{display:flex;align-items:center;gap:6px}.count-control button{width:24px;height:24px;border-radius:4px;border:1px solid var(--border-color);background:var(--background-color);color:var(--text-color);font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0}.count-control button:hover{background:var(--button-hover-bg-color)}.count-control span{min-width:24px;text-align:center;font-weight:600}.config-summary{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px;font-size:.85rem;opacity:.8}.config-summary .divider{opacity:.4}.config-actions{display:flex;gap:8px}.btn-challenge,.btn-start{flex:1;padding:10px 12px;border-radius:8px;border:none;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-start{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff}.btn-start:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 2px 8px #4f46e566}.btn-start:disabled{opacity:.5;cursor:not-allowed}.btn-challenge{background:var(--button-bg-color);color:var(--text-color);border:1px solid var(--border-color)}.btn-challenge:hover:not(:disabled){background:var(--button-hover-bg-color);border-color:#f59e0b}.exercise-list-section{flex:1;display:flex;flex-direction:column}.exercise-list-section .section-header{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;background:var(--button-bg-color);font-weight:600;font-size:.9rem;border-bottom:1px solid var(--border-color)}.progress-badge{background:#4f46e5;color:#fff;padding:2px 8px;border-radius:10px;font-size:.75rem}.theme-dark .progress-badge{background:#6366f1}.exercise-list{flex:1;overflow-y:auto;padding:8px}.exercise-item{display:flex;align-items:center;gap:8px;padding:10px 12px;margin-bottom:4px;border-radius:6px;cursor:pointer;transition:all .2s}.exercise-item:hover{background:var(--button-bg-color)}.exercise-item.current{background:#4f46e526;border-left:3px solid #4f46e5}.exercise-item.completed{opacity:.7}.exercise-status{width:20px;text-align:center;font-size:.9rem}.exercise-item.completed .exercise-status{color:#10b981}.exercise-item.completed.failed .exercise-status{color:#ef4444}.exercise-number{font-weight:600;min-width:20px}.exercise-concept{flex:1;font-size:.85rem;text-transform:capitalize}.exercise-xp{font-size:.75rem;color:#10b981;font-weight:600}.practice-sidebar .sidebar-footer{padding:12px 15px;border-top:1px solid var(--border-color);flex-shrink:0}.difficulty-slider-inline{display:flex;gap:4px}.difficulty-slider-inline .diff-dot{width:16px;height:16px;border-radius:50%;border:2px solid var(--border-color);background:var(--background-color);cursor:pointer;padding:0;transition:all .2s}.difficulty-slider-inline .diff-dot:hover{transform:scale(1.2)}.practice-footer-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;margin-top:8px;border-radius:8px;border:1px solid var(--border-color);background:var(--button-bg-color);color:var(--text-color);cursor:pointer;font-weight:600;transition:all .2s;text-decoration:none;font-size:.9rem}.practice-footer-btn:first-child{margin-top:0}.practice-footer-btn:hover:not(:disabled){background:var(--button-hover-bg-color);transform:translateY(-1px);box-shadow:0 2px 4px #0000000d}.practice-footer-btn:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(1)}.practice-footer-btn.solution{border-color:#f59e0b;color:#d97706;background:#f59e0b0d}.practice-footer-btn.solution:hover:not(:disabled){background:#f59e0b26;box-shadow:0 2px 8px #f59e0b33}.theme-dark .practice-footer-btn.solution{color:#fbbf24;background:#f59e0b1a;border-color:#f59e0b4d}.theme-dark .practice-footer-btn.solution:hover:not(:disabled){background:#f59e0b33}.practice-footer-btn.share{border-color:#3b82f6;color:#2563eb;background:#3b82f60d}.practice-footer-btn.share:hover:not(:disabled){background:#3b82f626;box-shadow:0 2px 8px #3b82f633}.theme-dark .practice-footer-btn.share{color:#60a5fa;background:#3b82f61a;border-color:#3b82f64d}.theme-dark .practice-footer-btn.share:hover:not(:disabled){background:#3b82f633}.practice-sidebar.collapsed{display:flex;flex-direction:column}.collapsed-exercise-list{display:flex;flex-direction:column;gap:4px;padding:8px 4px;overflow-y:auto;max-height:calc(100vh - 150px)}.collapsed-exercise-item{display:flex;flex-direction:column;align-items:center;justify-content:center;width:36px;height:36px;margin:0 auto;border-radius:8px;border:1px solid var(--border-color, #ddd);background:var(--button-bg-color, #f5f5f5);cursor:pointer;font-size:14px;font-weight:600;color:var(--text-color);transition:all .2s;position:relative}.collapsed-exercise-item:hover{background:var(--button-hover-bg-color, #e0e0e0);transform:scale(1.1)}.collapsed-exercise-item.current{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border-color:#2563eb;box-shadow:0 2px 8px #2563eb4d}.collapsed-exercise-item.completed{background:#10b981;color:#fff;border-color:#059669}.collapsed-exercise-item.completed .exercise-status.failed{position:absolute;top:-4px;right:-4px;background:#ef4444;color:#fff;font-size:10px;width:14px;height:14px;border-radius:50%;display:flex;align-items:center;justify-content:center}.collapsed-exercise-item.completed .exercise-status.success{display:none}.collapsed-exercise-item .exercise-number{line-height:1}.collapsed-spacer{flex-grow:1}.collapsed-language-indicator{display:flex;justify-content:center;padding:12px 4px;border-top:1px solid var(--border-color, #ddd)}.collapsed-lang-btn{background:var(--button-bg-color, #f5f5f5);border:1px solid var(--border-color, #ddd);border-radius:8px;padding:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.collapsed-lang-btn:hover{background:var(--button-hover-bg-color, #e0e0e0);transform:scale(1.05)}.collapsed-lang-btn .lang-flag{font-size:20px}.language-selector-wrapper{width:100%}.language-selector-wrapper select,.language-selector-wrapper .language-select{width:100%!important;padding:10px 12px;font-size:14px}.entrance-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f0c29,#302b63,#24243e);padding:20px;font-family:Inter,system-ui,-apple-system,sans-serif}.entrance-card{width:100%;max-width:520px;background:#ffffff14;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:40px;box-shadow:0 25px 50px -12px #00000080,0 0 0 1px #ffffff0d inset;color:#e0e0e0}.entrance-banner{text-align:center;margin-bottom:32px}.entrance-icon{font-size:3rem;margin-bottom:16px;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}.entrance-title{font-size:1.75rem;font-weight:800;margin:0 0 8px;background:linear-gradient(135deg,#f5af19,#f12711);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.entrance-description{font-size:.95rem;color:#fff9;margin:0 0 16px;line-height:1.5}.lobby-leaderboard-btn{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:#f5af191a;border:1px solid rgba(245,175,25,.3);border-radius:99px;color:#f5af19;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .2s ease;margin-top:8px}.lobby-leaderboard-btn:hover{background:#f5af1933;transform:translateY(-2px);box-shadow:0 4px 12px #f5af191a}.entrance-time-info{background:#ffffff0d;border-radius:16px;padding:16px 20px;margin-bottom:24px;border:1px solid rgba(255,255,255,.08)}.time-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0}.time-row+.time-row{border-top:1px solid rgba(255,255,255,.06)}.time-label{font-size:.85rem;color:#ffffff80}.time-value{font-size:.9rem;font-weight:600;color:#ffffffd9}.entrance-status{text-align:center;padding:16px;border-radius:12px;font-size:.9rem;font-weight:500;margin-bottom:16px}.entrance-status-waiting{background:#ffc10726;border:1px solid rgba(255,193,7,.3);color:#ffc107}.entrance-status-ended{background:#f4433626;border:1px solid rgba(244,67,54,.3);color:#f44336}.entrance-form h2{font-size:1.25rem;font-weight:700;margin:0 0 8px;color:#fff}.form-subtitle{font-size:.85rem;color:#ffffff80;margin:0 0 20px}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:.8rem;font-weight:600;color:#fff9;margin-bottom:6px;text-transform:uppercase;letter-spacing:.05em}.form-group input{width:100%;padding:12px 16px;background:#ffffff14;border:1px solid rgba(255,255,255,.15);border-radius:12px;color:#fff;font-size:1rem;transition:all .2s ease;outline:none;box-sizing:border-box}.form-group input:focus{border-color:#f5af1999;box-shadow:0 0 0 3px #f5af1926;background:#ffffff1f}.form-group input::placeholder{color:#ffffff4d}.form-error{background:#f4433626;border:1px solid rgba(244,67,54,.3);color:#f44336;padding:10px 14px;border-radius:10px;font-size:.85rem;margin-bottom:16px}.entrance-submit-btn{width:100%;padding:14px;background:linear-gradient(135deg,#f5af19,#f12711);border:none;border-radius:14px;color:#fff;font-size:1.05rem;font-weight:700;cursor:pointer;transition:all .2s ease;letter-spacing:.02em}.entrance-submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 24px #f1271159}.entrance-submit-btn:active:not(:disabled){transform:translateY(0)}.entrance-submit-btn:disabled{opacity:.6;cursor:not-allowed}.entrance-loading{text-align:center;padding:40px;font-size:1rem;color:#fff9}.entrance-error{text-align:center;padding:40px}.entrance-error h2{margin:0 0 8px;font-size:1.25rem}.entrance-error p{color:#ffffff80;margin:0}.entrance-lobby{display:flex;flex-direction:column;gap:24px;text-align:center;padding:12px 0}.lobby-greeting{margin-bottom:8px}.lobby-greeting h3{font-size:1.35rem;margin:0 0 6px;font-weight:600}.lobby-greeting h3 span{color:#f5af19}.lobby-greeting p{font-size:.95rem;color:#fff9;margin:0}.entrance-status-active{background:#4caf5026;border:1px solid rgba(76,175,80,.3);color:#4caf50}.lobby-action{display:flex;flex-direction:column;gap:16px}.exam-start-btn{background:linear-gradient(135deg,#00b09b,#96c93d);box-shadow:0 4px 15px #00b09b4d}.exam-start-btn:hover:not(:disabled){box-shadow:0 8px 24px #00b09b73}.lobby-history{margin-top:2.5rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,.1)}.lobby-history h3{font-size:1.25rem;color:#fff;margin-bottom:1.25rem;font-weight:600;display:flex;align-items:center;gap:8px}.lobby-history h3:before{content:"📜";font-size:1.1rem}.loading-small,.history-empty{text-align:center;color:#ffffff80;padding:1.5rem;font-style:italic;background:#ffffff0d;border-radius:12px;border:1px dashed rgba(255,255,255,.1)}.history-table-wrapper{overflow-x:auto;background:#0f172a4d;border-radius:12px;border:1px solid rgba(255,255,255,.1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.history-table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:500px}.history-table th{background:#ffffff0d;color:#ffffffb3;font-weight:600;text-align:left;padding:1rem;border-bottom:1px solid rgba(255,255,255,.1)}.history-table td{padding:1rem;border-bottom:1px solid rgba(255,255,255,.05);color:#ffffffd9;vertical-align:middle}.history-table tr:hover td{background:#ffffff05}.history-table tr:last-child td{border-bottom:none}.score-badge{background:#10b98126;color:#10b981;padding:.25rem .6rem;border-radius:6px;font-weight:700;font-family:JetBrains Mono,monospace;font-size:.9rem;border:1px solid rgba(16,185,129,.3)}.review-link{background:#3b82f61a;border:1px solid rgba(59,130,246,.2);color:#60a5fa;font-weight:600;cursor:pointer;padding:.4rem .8rem;border-radius:8px;transition:all .2s;font-size:.85rem}.review-link:hover{background:#3b82f640;color:#fff;transform:translateY(-1px);box-shadow:0 4px 12px #3b82f633}.form-divider{display:flex;align-items:center;margin:24px 0;color:#ffaf1966;font-size:.75rem;font-weight:800;letter-spacing:.1em}.form-divider:before,.form-divider:after{content:"";flex:1;height:1px;background:#ffffff1a}.form-divider span{padding:0 12px}.guest-section{text-align:center}.guest-trigger-btn{background:none;border:1px solid rgba(255,255,255,.1);color:#ffffff80;padding:10px 20px;border-radius:12px;font-size:.9rem;cursor:pointer;transition:all .2s ease;width:100%}.guest-trigger-btn:hover{background:#ffffff0d;color:#f5af19;border-color:#f5af194d}.guest-form-content{background:#f5af190d;border:1px solid rgba(245,175,25,.15);border-radius:20px;padding:24px;animation:slideInUp .3s ease-out}.guest-btn{background:linear-gradient(135deg,#f5af19,#e67e22)!important;margin-bottom:12px}.guest-cancel-btn{background:none;border:none;color:#fff6;font-size:.85rem;cursor:pointer;text-decoration:underline}.guest-cancel-btn:hover{color:#ffffffb3}@keyframes slideInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.pulse{box-shadow:0 0 #f5af1966;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #f5af1966}70%{box-shadow:0 0 0 10px #f5af1900}to{box-shadow:0 0 #f5af1900}}.contest-sidebar{width:280px;min-width:280px;height:100vh;display:flex;flex-direction:column;background:var(--glass-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:1px solid var(--glass-border);color:#e0e0e0;overflow-y:auto;box-shadow:var(--glass-shadow)}.test-mode-badge{margin:16px 20px 0;padding:8px 12px;background:#9b59b61a;border:1px solid rgba(155,89,182,.2);border-radius:12px;color:#bc82d1;font-size:.75rem;font-weight:700;text-align:center;display:flex;align-items:center;justify-content:center;gap:6px}.contest-timer{padding:24px 20px;text-align:center;border-bottom:1px solid var(--glass-border)}.timer-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:#fff6;margin-bottom:10px}.timer-value{font-size:2.2rem;font-weight:800;font-variant-numeric:tabular-nums;color:var(--success-color);text-shadow:0 0 20px rgba(76,175,80,.3)}.timer-critical .timer-value{color:var(--error-color);text-shadow:0 0 20px rgba(244,67,54,.4);animation:pulse-red 1s ease-in-out infinite}@keyframes pulse-red{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.02)}}.contest-score{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--glass-border);background:#ffffff05}.score-label{font-size:.75rem;font-weight:700;color:#fff6;text-transform:uppercase}.score-value{font-size:1.1rem;font-weight:800;color:var(--accent-color)}.challenge-list{flex:1;overflow-y:auto;padding:12px 0}.challenge-list-header{padding:0 20px 12px;font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:#ffffff40}.challenge-item{display:flex;align-items:center;gap:12px;width:calc(100% - 16px);margin:2px 8px;padding:12px;background:transparent;border:1px solid transparent;border-radius:12px;color:#fff9;font-size:.85rem;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);text-align:left}.challenge-item:hover:not(:disabled){background:#ffffff0d;color:#fff;transform:translate(4px)}.challenge-item.active{background:#f5af1914;color:var(--accent-color);border-color:#f5af194d;font-weight:600}.challenge-number{display:flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:8px;background:#ffffff0f;font-size:.7rem;font-weight:800}.challenge-item.active .challenge-number{background:var(--accent-color);color:#1a1a2e}.challenge-title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.challenge-score{font-size:.7rem;font-weight:800;color:var(--success-color);background:#4caf501a;padding:2px 8px;border-radius:6px}.sidebar-history-section{padding:16px 20px;background:#0003;border-top:1px solid var(--glass-border)}.sidebar-history-header{font-size:.65rem;font-weight:800;text-transform:uppercase;color:#ffffff4d;margin-bottom:12px;letter-spacing:.05em}.sidebar-history-list{display:flex;flex-direction:column;gap:8px}.sidebar-history-item{display:flex;align-items:center;gap:10px;font-size:.75rem;color:#ffffff80}.history-status-dot{width:6px;height:6px;border-radius:50%}.history-status-dot.passed{background:var(--success-color);box-shadow:0 0 8px var(--success-color)}.history-status-dot.attempted{background:#ffc107;box-shadow:0 0 8px #ffc107}.history-time{flex:1}.history-score{font-weight:700;color:#fff}.contest-sidebar-footer{padding:20px;border-top:1px solid var(--glass-border)}.submit-all-btn{width:100%;padding:14px;background:linear-gradient(135deg,#f5af19,#f12711);border:none;border-radius:14px;color:#fff;font-size:.9rem;font-weight:800;cursor:pointer;box-shadow:0 4px 15px #f1271133;transition:all .3s cubic-bezier(.175,.885,.32,1.275)}.submit-all-btn:hover:not(:disabled){transform:scale(1.02);box-shadow:0 8px 25px #f1271166}.submit-all-btn:disabled{opacity:.5;background:#30363d;box-shadow:none;cursor:not-allowed}.exam-room-container{--glass-bg: rgba(255, 255, 255, .03);--glass-border: rgba(255, 255, 255, .08);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .37);--accent-color: #f5af19;--success-color: #4caf50;--error-color: #f44336;display:flex;width:100vw;height:100vh;overflow:hidden;background-color:#0d1117;color:#c9d1d9}.exam-main-content{flex:1;position:relative;height:100vh;overflow:hidden}.exam-loading-screen{width:100vw;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background-color:#0d1117;color:#58a6ff}.loader-spinner{width:40px;height:40px;border:4px solid rgba(88,166,255,.1);border-left-color:#58a6ff;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:20px}.exam-overlay-locked{position:absolute;top:0;left:0;right:0;bottom:0;background:#0d1117f2;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:40px}.locked-message{max-width:480px;width:100%;background:#161b22;border:1px solid #30363d;border-radius:20px;padding:48px;text-align:center;box-shadow:0 20px 40px #0006}.locked-message h2{font-size:1.75rem;color:#fff;margin-bottom:16px}.locked-message p{color:#8b949e;margin-bottom:32px}.final-score-box{background:#2386361a;border:1px solid rgba(35,134,54,.3);border-radius:12px;padding:24px;margin-bottom:32px;display:flex;flex-direction:column;gap:8px}.final-score-box .label{font-size:.9rem;color:#7ee787;text-transform:uppercase;letter-spacing:.05em;font-weight:600}.final-score-box .value{font-size:3rem;font-weight:800;color:#3fb950}.exit-btn{padding:12px 24px;background:#21262d;border:1px solid #30363d;border-radius:8px;color:#c9d1d9;font-weight:600;cursor:pointer;transition:all .2s}.exit-btn:hover{background:#30363d;border-color:#8b949e}.no-quest-selected{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:#8b949e}.exam-main-content>.quest-player-root{height:100%!important}.review-page{min-height:100vh;background:radial-gradient(circle at top left,#1e293b,#0f172a);color:#fff;padding:1.5rem;display:flex;justify-content:center;align-items:flex-start}.review-container{width:100%;max-width:900px;background:#1e293b80;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.1);border-radius:24px;padding:2.5rem;box-shadow:0 10px 30px #0000004d}.review-header{margin-bottom:2.5rem;padding-bottom:1.5rem;border-bottom:1px solid rgba(255,255,255,.1)}.header-info{display:flex;align-items:center;gap:1.5rem;margin-bottom:.75rem}.header-info h1{font-size:1.75rem;font-weight:700;letter-spacing:-.025em;margin:0;background:linear-gradient(to right,#60a5fa,#34d399);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.header-meta{font-size:.85rem;color:#ffffff80;display:flex;gap:1.5rem}.meta-item code{background:#ffffff1a;padding:.1rem .4rem;border-radius:4px;color:#94a3b8}.back-btn{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:#fffc;padding:.5rem 1rem;border-radius:10px;cursor:pointer;font-weight:600;transition:all .2s}.back-btn:hover{background:#ffffff1a;color:#fff;transform:translate(-3px)}.review-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.25rem;margin-bottom:2.5rem}.info-card{background:#0f172a66;padding:1rem 1.25rem;border-radius:16px;border:1px solid rgba(255,255,255,.05)}.info-card.highlight{background:linear-gradient(135deg,#3b82f61a,#10b9811a);border-color:#3b82f633}.info-card label{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:#fff6;margin-bottom:.5rem}.info-value{font-size:1.15rem;font-weight:600;color:#e2e8f0}.info-value.score{font-size:1.5rem;color:#10b981}.info-value.lang{color:#60a5fa}.review-section{margin-bottom:2.5rem}.section-header{margin-bottom:1rem}.section-header h3{font-size:1.15rem;font-weight:600;color:#94a3b8;margin:0;display:flex;align-items:center;gap:10px}.code-block{background:#0f172a;padding:1.5rem;border-radius:16px;border:1px solid rgba(255,255,255,.1);overflow-x:auto;box-shadow:inset 0 2px 10px #0003}.code-block pre{margin:0;font-family:JetBrains Mono,Fira Code,monospace;font-size:.9rem;line-height:1.6;color:#e2e8f0}.results-list{display:flex;flex-direction:column;gap:.75rem}.result-item{display:flex;align-items:flex-start;gap:1rem;padding:1rem 1.25rem;border-radius:14px;background:#ffffff08;border:1px solid rgba(255,255,255,.05)}.result-item.pass{border-left:4px solid #10b981}.result-item.fail{border-left:4px solid #ef4444}.result-details{flex:1}.result-main{display:flex;justify-content:space-between;align-items:center;margin-bottom:.25rem}.result-name{font-weight:600;color:#f1f5f9}.result-status-text{font-size:.7rem;font-weight:800;letter-spacing:.05em;padding:.15rem .5rem;border-radius:999px}.result-status-text.pass{background:#10b9811a;color:#10b981}.result-status-text.fail{background:#ef44441a;color:#ef4444}.result-message{font-size:.85rem;color:#ffffff80;margin-top:.4rem;font-family:Inter,sans-serif}.loading,.error{height:300px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.loader{width:48px;height:48px;border:3px solid rgba(255,255,255,.1);border-radius:50%;border-top-color:#60a5fa;animation:spin 1s linear infinite;margin-bottom:1.5rem}@keyframes spin{to{transform:rotate(360deg)}}.error-card{padding:2.5rem;background:#ef44440d;border:1px solid rgba(239,68,68,.2);border-radius:20px;max-width:400px}.error-card button{margin-top:1.5rem;background:#3b82f6;color:#fff;border:none;padding:.75rem 1.5rem;border-radius:12px;font-weight:600;cursor:pointer}@media (max-width: 640px){.review-page{padding:1rem}.review-container{padding:1.5rem}.review-info-grid{grid-template-columns:1fr 1fr}}:root{font-family: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}html,body,#root{height:100%;width:100%;margin:0;padding:0;overflow:hidden}body{min-width:320px}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}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}a:hover{color:#747bff}button{background-color:#f9f9f9}}.dialogOverlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#0009;display:flex;justify-content:center;align-items:center;z-index:9999;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.dialogContent{background:var(--background-color, #fff);color:var(--text-color, #212121);padding:20px;border-radius:8px;min-width:300px;max-width:500px;box-shadow:0 8px 25px #0006;display:flex;flex-direction:column;text-align:left}.dialogHeader{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color, #ddd);padding-bottom:10px;margin-bottom:15px}.dialogHeader h2{margin:0;font-size:1.5rem}.dialogCloseButton{background:none;border:none;font-size:2rem;line-height:1;cursor:pointer;color:var(--text-color, #aaa);padding:0 5px;transition:color .2s}.dialogCloseButton:hover{color:var(--text-color, #000)}.dialogBody{margin-bottom:20px;max-height:70vh;overflow-y:auto}.dialogFooter{text-align:right;border-top:1px solid var(--border-color, #eee);padding-top:15px;margin-top:auto}.primaryButton{padding:8px 20px;font-size:1rem;font-weight:700;cursor:pointer;background-color:#007bff;color:#fff;border:none;border-radius:4px;transition:background-color .2s}.primaryButton:hover{background-color:#0056b3}.completion-dialog-content{text-align:center}.stars-header{font-size:1.2em;font-weight:700;margin-bottom:10px}.stars-container{display:flex;justify-content:center;gap:10px;margin:15px 0}.star{font-size:2.5em;color:gold}.far.fa-star{color:var(--border-color, #ccc)}.completion-message{font-size:1.1em;margin:10px 0}.optimal-solution-info,.excellent-solution{font-style:italic;color:var(--text-color, #888);opacity:.7;margin-top:15px}.code-details{margin-top:20px;text-align:left;border:1px solid var(--border-color, #ddd);border-radius:4px;overflow:hidden}.code-details summary{cursor:pointer;padding:8px;background-color:var(--button-bg-color, #f0f0f0);font-weight:700}.code-details pre{background-color:var(--visualization-bg, #f5f5f5);padding:10px;margin:0;max-height:150px;overflow-y:auto;border-top:1px solid var(--border-color, #ddd)}.code-details code{font-family:monospace;font-size:.9em}.docs-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.docs-panel{background:var(--background-color, #fff);color:var(--text-color, #333);border-radius:12px;width:60vw;height:auto;max-height:85vh;max-width:800px;box-shadow:0 10px 25px #0003;display:flex;flex-direction:column}.docs-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color, #eee);padding:16px 24px;flex-shrink:0}.docs-header h3{margin:0;font-size:1.25rem;font-weight:600}.docs-close-button{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--text-color-secondary, #666);line-height:1;padding:4px;border-radius:4px;transition:background .2s}.docs-close-button:hover{background:#0000000d;color:var(--text-color, #333)}.docs-body{flex-grow:1;padding:0;overflow-y:auto;min-height:0}.docs-iframe{width:100%;height:75vh;border:none;border-radius:0 0 12px 12px;display:block}.hints-container{padding:24px 32px;text-align:left;max-width:900px;margin:0 auto}.hint-section{margin-bottom:24px;background:var(--background-color-secondary, #f8f9fa);padding:20px 24px;border-radius:12px;border-left:6px solid var(--primary-color, #4ade80);box-shadow:0 2px 8px #0000000d}.hint-section h4{margin-top:0;margin-bottom:16px;font-size:1.15rem;font-weight:700;color:var(--text-color-primary, #1f2937);display:flex;align-items:center;gap:8px}.hint-section p{margin:0;line-height:1.6;font-size:1rem;color:var(--text-color, #374151);white-space:pre-wrap}.hint-list{margin:0;padding-left:20px}.hint-list li{margin-bottom:12px;line-height:1.5;color:var(--text-color, #374151)}@media (prefers-color-scheme: dark){.hint-section{background:#ffffff0d}}.editorToolbar{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;height:48px;box-sizing:border-box;transition:background-color .2s,color .2s}.editorToolbar.light{background-color:#f5f5f5;border-bottom:1px solid #e0e0e0;color:#333}.editorToolbar.dark{background-color:#1e1e1e;border-bottom:1px solid #333333;color:#e0e0e0}.editorToolbar.light .toolbar-left svg{fill:#555}.editorToolbar.dark .toolbar-left svg{fill:#ccc}.toolbar-left{display:flex;gap:8px;align-items:center}.editor-switch-group{display:flex;gap:4px;align-items:center;background-color:#e0e0e0;padding:3px;border-radius:6px}.editorToolbar.dark .editor-switch-group{background-color:#333}.editor-switch-group button{background:none;border:none;padding:6px 12px;border-radius:4px;cursor:pointer;font-size:13px;font-weight:500;color:#666;transition:all .2s;white-space:nowrap}.editorToolbar.dark .editor-switch-group button{color:#aaa}.editor-switch-group button:hover{background-color:#0000000d;color:#333}.editorToolbar.dark .editor-switch-group button:hover{background-color:#ffffff1a;color:#e0e0e0}.editor-switch-group button.active{background-color:#fff;color:#1976d2;box-shadow:0 1px 3px #0000001a;font-weight:600}.editorToolbar.dark .editor-switch-group button.active{background-color:#444;color:#64b5f6;box-shadow:0 1px 3px #0000004d}.editorLabel{font-weight:700;font-size:14px;color:#333;padding:0 8px}.editorToolbar.dark .editorLabel{color:#e0e0e0}.help-button{padding:6px 14px;font-size:13px}.settings-button{background:none;border:none;cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;color:var(--text-secondary-light);border-radius:50%;transition:background-color .2s}@media (prefers-color-scheme: dark){.settings-button{color:var(--text-secondary-dark)}}.settings-button:hover{background-color:#0000000d;color:var(--text-primary-light)}@media (prefers-color-scheme: dark){.settings-button:hover{background-color:#ffffff1a;color:var(--text-primary-dark)}}.quest-importer-wrapper input[type=file]{display:none}.custom-file-upload{display:inline-block;padding:6px 12px;cursor:pointer;border:1px solid var(--border-color);border-radius:4px;background-color:var(--button-bg-color);color:var(--text-color);font-size:14px;transition:background-color .2s ease}.custom-file-upload:hover{background-color:var(--button-hover-bg-color)}.quest-player-container{width:100%;height:100%}[data-resize-handle-id]{width:6px;background-color:var(--border-color);transition:background-color .2s ease}[data-resize-handle-id]:hover{background-color:#007bff}.visualizationColumn{height:100%;display:flex;flex-direction:column;background-color:var(--background-color);border:1px solid var(--border-color)}.main-content-wrapper{flex-grow:1;display:flex;flex-direction:column;min-height:0}.controlsArea{padding:8px 12px;height:48px;box-sizing:border-box;border-bottom:1px solid var(--border-color);background-color:var(--background-color);display:flex;justify-content:space-between;align-items:center;flex-shrink:0}.blocklyColumn{position:relative;width:100%;height:100%;border:1px solid var(--border-color);display:flex;flex-direction:column}.fill-container{width:100%;flex-grow:1;min-height:0}.descriptionArea{padding:10px;text-align:center;border-top:1px solid var(--border-color);background-color:var(--background-color);font-style:italic;flex-shrink:0}.emptyState{flex-grow:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:20px;text-align:center;color:#888}.visualization-wrapper{flex-grow:1;position:relative;display:flex;flex-direction:column;min-height:0}.stats-overlay{position:absolute;top:10px;right:10px;z-index:10;background-color:#0000004d;color:#fff;padding:8px 12px;border-radius:5px;font-family:monospace;font-size:14px;pointer-events:none}.stat-item{margin-bottom:4px}.stat-item:last-child{margin-bottom:0}.random-mode-badge{background:linear-gradient(135deg,#8b5cf6,#d946ef);color:#fff;padding:4px 10px;border-radius:12px;font-weight:600;font-size:12px;margin-bottom:8px;display:inline-flex;align-items:center;gap:4px;cursor:help;animation:subtle-pulse 2s ease-in-out infinite}@keyframes subtle-pulse{0%,to{opacity:1}50%{opacity:.85}}.primaryButton{padding:8px 16px;font-size:14px;cursor:pointer;margin:0 5px;border-radius:5px;color:var(--text-color);background-color:var(--button-bg-color);border:1px solid var(--border-color)}.primaryButton:hover{background-color:var(--button-hover-bg-color)}.themed-select{background-color:var(--button-bg-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:4px;padding:6px 10px;font-size:14px;cursor:pointer;transition:border-color .2s}.themed-select:hover{border-color:var(--text-color)}.themed-select:focus{outline:none;border-color:#007bff}.control-group{display:flex;align-items:center;gap:6px;color:var(--text-color)}.control-group svg{width:18px;height:18px;flex-shrink:0}.controls-left{display:flex;align-items:center;gap:12px}.settings-panel-container{position:absolute;top:40px;right:0;z-index:30;padding:10px;pointer-events:none}.settings-panel{width:250px;background-color:var(--background-color);border:1px solid var(--border-color);border-radius:4px;box-shadow:-2px 2px 5px #0000001a;transform:translate(calc(100% + 20px));transition:transform .3s ease-in-out;visibility:hidden;padding:15px;box-sizing:border-box;pointer-events:auto}.settings-panel-container.open .settings-panel{transform:translate(0);visibility:visible}.settings-panel h3{margin-top:0;margin-bottom:20px;border-bottom:1px solid var(--border-color);padding-bottom:10px}.setting-item{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.setting-item label{display:flex;align-items:center;gap:8px}.setting-item select,.setting-item input{background-color:var(--button-bg-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:4px;padding:5px}.mazeContainer{width:95%;max-width:400px;aspect-ratio:1 / 1;position:relative;border:1px solid var(--border-color);margin:auto;background-color:#f1eee7}.mazeMap{width:100%;height:100%;position:relative}.mapCell{width:12.5%;height:12.5%;position:absolute;overflow:hidden}.tileImage{width:500%;height:400%;background-image:url(/assets/maze/tiles_pegman.png);background-size:100% 100%;position:absolute}.pegman{position:absolute;width:49px;height:52px;background-image:url(/assets/maze/pegman.png);background-size:1029px 52px;transition:top .1s linear,left .1s linear}.finishMarker{position:absolute;width:20px;height:34px}.pondContainer{display:flex;flex-direction:column;align-items:center}.canvasWrapper{width:400px;height:400px;position:relative;border:1px solid var(--border-color)}.canvasWrapper canvas{position:absolute;top:0;left:0;width:100%;height:100%}#displayCanvas{z-index:1}#scratchCanvas{z-index:0;display:none}.statsContainer{display:flex;width:402px;margin-top:4px}.avatarStatCard{flex:1;border:1px solid #888;padding:4px;text-align:center;color:#fff;font-weight:700;position:relative;overflow:hidden}.avatarStatCard .healthBarBackground{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#555;z-index:1}.avatarStatCard .healthBar{position:absolute;top:0;left:0;height:100%;z-index:2;transition:width .2s ease}.avatarStatCard .avatarName{position:relative;z-index:3}.turtleContainer{width:400px;height:400px;position:relative;border:1px solid var(--border-color)}.turtleContainer canvas{position:absolute;top:0;left:0;width:100%;height:100%}#displayCanvas{z-index:2;background-color:transparent}#answerCanvas{z-index:1}#scratchCanvas{z-index:0}