.dialog-shell.svelte-gr8n1f{position:fixed;inset:0;z-index:5000;display:grid;place-items:center;padding:1rem}.dialog-backdrop.svelte-gr8n1f{position:absolute;inset:0;border:0;background:#0f172a94;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);cursor:default}.dialog-card.svelte-gr8n1f{position:relative;display:grid;grid-template-columns:auto 1fr;gap:0 1rem;width:min(440px,100%);box-sizing:border-box;padding:1.4rem;border:1px solid var(--color-border);border-radius:.9rem;background:var(--color-bg);color:var(--color-text);box-shadow:0 24px 80px #00000052;animation:svelte-gr8n1f-dialog-enter .13s ease-out both}.dialog-icon.svelte-gr8n1f{display:grid;place-items:center;width:2.4rem;height:2.4rem;border-radius:.7rem;background:color-mix(in srgb,var(--color-highlight) 16%,transparent);color:var(--color-highlight);font-size:1.25rem;font-weight:800}.dialog-card.danger.svelte-gr8n1f .dialog-icon:where(.svelte-gr8n1f){background:color-mix(in srgb,var(--color-hard) 14%,transparent);color:var(--color-hard)}.dialog-card.success.svelte-gr8n1f .dialog-icon:where(.svelte-gr8n1f){background:color-mix(in srgb,var(--color-easy) 14%,transparent);color:var(--color-easy)}.dialog-copy.svelte-gr8n1f{min-width:0}.dialog-copy.svelte-gr8n1f h2:where(.svelte-gr8n1f){margin:0;font-size:1.12rem;line-height:1.35}.dialog-copy.svelte-gr8n1f p:where(.svelte-gr8n1f){margin:.45rem 0 0;color:var(--color-text-secondary);font-size:.9rem;line-height:1.55;max-height:min(50vh,20rem);overflow-y:auto;overflow-wrap:anywhere;white-space:pre-wrap}.dialog-actions.svelte-gr8n1f{grid-column:1 / -1;display:flex;justify-content:flex-end;gap:.6rem;margin-top:1.35rem}.dialog-button.svelte-gr8n1f{min-height:2.35rem;padding:.45rem .85rem;border:1px solid var(--color-border);border-radius:.5rem;font:inherit;font-size:.86rem;font-weight:650;cursor:pointer}.dialog-button.secondary.svelte-gr8n1f{background:var(--color-surface);color:var(--color-text)}.dialog-button.primary.svelte-gr8n1f{border-color:var(--color-highlight);background:var(--color-highlight);color:#fff}.dialog-button.primary.danger.svelte-gr8n1f{border-color:var(--color-hard);background:var(--color-hard)}.dialog-button.svelte-gr8n1f:hover{filter:brightness(1.04)}.dialog-button.svelte-gr8n1f:focus-visible{outline:3px solid color-mix(in srgb,var(--color-highlight) 28%,transparent);outline-offset:2px}@keyframes svelte-gr8n1f-dialog-enter{0%{opacity:0;transform:translateY(6px) scale(.985)}to{opacity:1;transform:translateY(0) scale(1)}}@media (max-width: 520px){.dialog-shell.svelte-gr8n1f{align-items:end;padding:.7rem}.dialog-card.svelte-gr8n1f{padding:1.2rem;border-radius:1rem}.dialog-actions.svelte-gr8n1f{display:grid;grid-template-columns:1fr 1fr}.dialog-actions.svelte-gr8n1f .primary:where(.svelte-gr8n1f):only-child{grid-column:1 / -1}}@media (prefers-reduced-motion: reduce){.dialog-card.svelte-gr8n1f{animation:none}}.demo-banner.svelte-13ply8v{background-color:var(--color-bg);color:var(--color-text);padding:.75rem 1rem;text-align:center;position:relative;display:flex;justify-content:center;align-items:center;font-family:var(--font-sans, sans-serif);box-shadow:0 2px 4px #0000001a}.demo-banner.svelte-13ply8v p:where(.svelte-13ply8v){margin:0;font-size:.95rem;padding-right:2rem}.demo-banner.svelte-13ply8v a:where(.svelte-13ply8v){color:var(--color-text);text-decoration:underline;font-weight:600}.demo-banner.svelte-13ply8v a:where(.svelte-13ply8v):hover{text-decoration:none;opacity:.9}.demo-banner.svelte-13ply8v button:where(.svelte-13ply8v){background:none;border:none;color:var(--color-text);font-size:1.5rem;cursor:pointer;padding:.25rem;line-height:1;position:absolute;right:1rem;top:50%;transform:translateY(-50%);opacity:.8;transition:opacity .2s}.demo-banner.svelte-13ply8v button:where(.svelte-13ply8v):hover{opacity:1}:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: 1rem;--spacing-4: 1.5rem;--spacing-5: 3rem;--border-radius-sm: 8px;--border-radius-md: 12px;--border-radius-lg: 16px;--scrollbar-size: 10px}:root[data-theme=dark]{color-scheme:dark;--color-bg: #443835;--color-second-bg: rgba(0,0,0,.25);--color-third-bg: rgba(0,0,0,.1);--color-surface: rgba(255, 255, 255, .05);--color-surface-hover: rgba(255, 255, 255, .1);--color-highlight: #d48f43;--color-text: #f0f0f0;--color-text-primary: #f0f0f0;--color-text-secondary: rgba(235, 235, 245, .7);--color-primary: #42c882;--color-primary-text: #000000;--color-border: rgba(255, 255, 255, .1);--color-border-active: rgba(255, 255, 255, 0);--color-easy: #42c882;--color-medium: #ffc107;--color-hard: #dc3545;--color-incorrect: lightcoral;--color-correct: lightgreen;--scrollbar-thumb: rgba(255, 255, 255, .28);--scrollbar-thumb-hover: rgba(255, 255, 255, .45);--scrollbar-track: rgba(255, 255, 255, .06);--hl-comment: #8b949e;--hl-keyword: #ff7b72;--hl-string: #a5d6ff;--hl-builtin: #d2a8ff;--color-code-bg: #161b22}:root,:root[data-theme=light]{color-scheme:light;--color-bg: #f8fafc;--color-second-bg: rgba(0,0,0,.05);--color-third-bg: rgba(0,0,0,.03);--color-surface: #ffffff;--color-surface-hover: #f1f5f9;--color-highlight: #d48f43;--color-text: #0f172a;--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-primary: #42c882;--color-primary-text: #1f2937;--color-border: rgba(0, 0, 0, .1);--color-border-active: rgba(0, 0, 0, .05);--color-easy: #22c55e;--color-medium: #f59e0b;--color-hard: #dc2626;--color-incorrect: #dc2626;--color-correct: #16a34a;--scrollbar-thumb: rgba(100, 116, 139, .45);--scrollbar-thumb-hover: rgba(71, 85, 105, .55);--scrollbar-track: rgba(148, 163, 184, .2);--hl-comment: #6e7781;--hl-keyword: #cf222e;--hl-string: #0a3069;--hl-builtin: #953800;--color-code-bg: #f6f8fa}.markdown-body{font-family:var(--font-sans);line-height:1.5;word-wrap:break-word}.markdown-body h1,.markdown-body h2{border-bottom:1px solid var(--color-border);padding-bottom:.3em;margin-top:24px;margin-bottom:16px;font-weight:600;line-height:1.25}.markdown-body h1{font-size:2em}.markdown-body h2{font-size:1.5em}.markdown-body h3{font-size:1.25em;font-weight:600;margin-top:24px;margin-bottom:16px}.markdown-body p{margin-top:0;margin-bottom:16px}.markdown-body img{max-width:100%;height:auto;border-radius:var(--border-radius-md);border:1px solid var(--color-border);margin-top:16px;margin-bottom:16px;display:block}.markdown-body .md-thumb{position:relative;display:inline-block;margin-top:16px;margin-bottom:16px}.markdown-body img[src^="cojudge://image/"]{visibility:hidden}.markdown-body .md-thumb img{max-width:240px;max-height:160px;width:auto;height:auto;margin-top:0;margin-bottom:0;cursor:zoom-in}.markdown-body .md-thumb-delete{position:absolute;top:4px;right:4px;display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;padding:0;border:none;border-radius:6px;background:#0000008c;color:#fff;cursor:pointer;opacity:.7}.markdown-body .md-thumb-delete:hover{opacity:1;background:var(--color-hard)}.markdown-body a.md-file-mention{display:inline-flex;align-items:center;gap:.3em;vertical-align:baseline;color:var(--color-text);text-decoration:none;border-radius:3px;padding:0 .15em;margin:0 -.15em;cursor:pointer;-webkit-user-select:none;user-select:none;font-weight:400;font-style:normal;font-size:1rem;line-height:1.5;letter-spacing:normal;text-transform:none;background:transparent}.markdown-body a.md-file-mention:hover{background:color-mix(in srgb,var(--color-text) 8%,transparent);text-decoration:none}.markdown-body a.md-file-mention .md-file-mention-icon{flex-shrink:0;width:14px;height:14px;display:block}.markdown-body a.md-file-mention .md-file-mention-label{text-decoration:underline;text-underline-offset:2px;text-decoration-color:color-mix(in srgb,var(--color-text) 35%,transparent);color:var(--color-text);font-weight:400;font-style:normal;font-size:inherit;line-height:inherit;letter-spacing:normal;text-transform:none}.markdown-body a.md-file-mention:hover .md-file-mention-label{text-decoration-color:color-mix(in srgb,var(--color-text) 55%,transparent)}.wysiwyg-editing span[style*="var(--color-second-bg)"]{font-family:var(--font-mono);font-size:85%;background-color:var(--color-second-bg);border-radius:6px;padding:.2em .4em}.markdown-body pre{background-color:var(--color-code-bg);border:1px solid var(--color-border);border-radius:6px;padding:16px;overflow:auto;font-size:85%;line-height:1.45;margin-bottom:16px}.markdown-body code{background-color:var(--color-second-bg);border-radius:6px;padding:.2em .4em;font-size:85%;font-family:var(--font-mono)}.markdown-body pre code{background-color:transparent;padding:0;border-radius:0;font-size:inherit;color:inherit}.markdown-body blockquote{border-left:.25em solid var(--color-border);color:var(--color-text-secondary);padding:0 1em;margin:0 0 16px}.markdown-body ul,.markdown-body ol{padding-left:2em;margin-top:0;margin-bottom:16px}.markdown-body li:has(>input[type=checkbox]){list-style-type:none}.markdown-body li:has(>input[type=checkbox]:checked){text-decoration:line-through;opacity:.65}.markdown-body li:has(>input[type=checkbox]:checked) ul,.markdown-body li:has(>input[type=checkbox]:checked) ol{text-decoration:none;opacity:1}.markdown-body ul:has(>li>input[type=checkbox]){padding-left:.4em}.markdown-body li>input[type=checkbox]{appearance:none;-webkit-appearance:none;width:1rem;height:1rem;margin:0 .5rem 0 0;vertical-align:-.15em;border:1.5px solid var(--color-text-secondary);border-radius:3px;background-color:transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;position:relative;flex-shrink:0;transition:background-color .15s ease,border-color .15s ease}.markdown-body li>input[type=checkbox]:hover{border-color:var(--color-highlight);background-color:var(--color-surface-hover)}.markdown-body li>input[type=checkbox]:checked{background-color:var(--color-highlight);border-color:var(--color-highlight);opacity:1}.markdown-body li>input[type=checkbox]:checked:after{content:"";display:block;width:10px;height:16px;border:solid #ffffff;border-width:0 2px 2px 0;transform:rotate(45deg) translate(-.5px,-.5px)}.markdown-body.wysiwyg-editing li>input[type=checkbox]{pointer-events:auto}.markdown-body table{border-collapse:collapse;width:100%;margin-top:0;margin-bottom:16px;display:block;overflow:auto}.markdown-body th,.markdown-body td{border:1px solid var(--color-border);padding:6px 13px}.markdown-body tr:nth-child(2n){background-color:var(--color-third-bg)}.hl-comment{color:var(--hl-comment);font-style:italic}.hl-keyword{color:var(--hl-keyword);font-weight:600}.hl-string{color:var(--hl-string)}.hl-builtin,.hl-number{color:var(--hl-builtin)}.code-block-wrapper{position:relative;margin-bottom:16px}.md-code-copy>pre{padding-top:36px}.code-block-actions{position:absolute;top:8px;right:8px;display:inline-flex;align-items:center;gap:2px;padding:2px 4px;background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;box-shadow:0 1px 3px #00000014;z-index:2;opacity:0;pointer-events:none;transition:opacity .15s ease,background-color .15s ease}.code-block-wrapper:hover .code-block-actions,.code-block-wrapper:focus-within .code-block-actions,.code-block-wrapper.lang-picker-active .code-block-actions{opacity:1;pointer-events:auto}.code-lang-picker{display:inline-flex;align-items:center}.code-lang-btn{display:inline-flex;align-items:center;gap:4px;background:transparent;border:none;border-radius:4px;padding:3px 6px;color:var(--color-text-secondary);font-family:var(--font-sans);font-size:.75rem;font-weight:500;cursor:pointer;line-height:1;transition:background-color .12s ease,color .12s ease}.code-lang-btn:hover{background-color:var(--color-surface-hover);color:var(--color-text)}.code-lang-chevron{opacity:.7}.code-action-divider{width:1px;height:14px;background-color:var(--color-border);margin:0 2px}.copy-code-button{display:inline-flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:4px;padding:4px;color:var(--color-text-secondary);cursor:pointer;line-height:1;transition:background-color .12s ease,color .12s ease}.copy-code-button:hover{background-color:var(--color-surface-hover);color:var(--color-text)}.delete-code-button{display:inline-flex;align-items:center;justify-content:center;background:transparent;border:none;border-radius:4px;padding:4px;color:var(--color-text-secondary);cursor:pointer;line-height:1;transition:background-color .12s ease,color .12s ease}.delete-code-button:hover{background-color:color-mix(in srgb,var(--color-hard) 14%,transparent);color:var(--color-hard)}.lang-picker-backdrop{position:fixed;inset:0;z-index:9999;background:transparent}.lang-picker-popover{position:fixed;z-index:10000;width:220px;background-color:var(--color-bg);border:1px solid var(--color-border);border-radius:8px;box-shadow:0 8px 24px #0000002e,0 2px 6px #00000014;padding:6px;display:flex;flex-direction:column;gap:6px}.lang-picker-search{padding:2px}.lang-search-input{width:100%;padding:6px 10px;border:1px solid var(--color-border);border-radius:6px;background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);font-size:.8rem;outline:none;box-sizing:border-box}.lang-search-input:focus{border-color:var(--color-highlight);box-shadow:0 0 0 2px color-mix(in srgb,var(--color-highlight) 20%,transparent)}.lang-picker-list{max-height:220px;overflow-y:auto;display:flex;flex-direction:column;gap:2px}.lang-picker-option{display:flex;align-items:center;justify-content:space-between;width:100%;padding:6px 10px;background:transparent;border:none;border-radius:6px;color:var(--color-text);font-family:var(--font-sans);font-size:.82rem;font-weight:500;text-align:left;cursor:pointer;transition:background-color .1s ease}.lang-picker-option:hover,.lang-picker-option.focused{background-color:var(--color-surface-hover)}.lang-picker-option.focused{outline:none}.lang-check-icon{color:var(--color-text)}.code-block-lang-label{font-size:.75rem;color:var(--color-text-secondary);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:4px;padding:2px 8px;line-height:1.4;font-family:var(--font-mono);-webkit-user-select:none;user-select:none}.code-block-wrapper.collapsed{background-color:var(--color-code-bg);border:1px solid var(--color-border);border-radius:6px;min-height:44px;display:flex;align-items:center;justify-content:flex-end;padding:6px 8px}.code-block-wrapper.collapsed .code-block-actions{position:static;width:100%;justify-content:flex-end}.code-block-wrapper.collapsed .code-block-lang-label{flex:1}.collapse-code-button{width:28px;height:28px;display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:6px;cursor:pointer;transition:background-color .2s,color .2s}.collapse-code-button:hover{background-color:var(--color-surface-hover);color:var(--color-text);border-color:var(--color-highlight)}.copy-code-button{width:28px;height:28px;display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);background-color:var(--color-surface);border-radius:6px;cursor:pointer;transition:background-color .2s,color .2s}.copy-code-button:hover{background-color:var(--color-surface-hover);color:var(--color-text);border-color:var(--color-highlight)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);background-color:var(--color-bg);color:var(--color-text-secondary);line-height:1.6}h1,h2,h3{margin:0;font-weight:600;color:var(--color-text-primary)}a{color:var(--color-primary);text-decoration:none;transition:opacity .2s}a:hover{text-decoration:none;opacity:.8}html{scroll-behavior:smooth;scrollbar-gutter:stable}*{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) var(--scrollbar-track)}*::-webkit-scrollbar{width:var(--scrollbar-size);height:var(--scrollbar-size)}*::-webkit-scrollbar-track{background:var(--scrollbar-track)}*::-webkit-scrollbar-thumb{background-color:var(--scrollbar-thumb);border-radius:999px;border:3px solid transparent;background-clip:content-box}*::-webkit-scrollbar-thumb:hover{background-color:var(--scrollbar-thumb-hover)}*::-webkit-scrollbar-corner{background:var(--scrollbar-track)}body,pre,textarea{scrollbar-gutter:stable both-edges}.problem-pane:hover,.editor-pane:hover,pre:hover,textarea:hover{scrollbar-color:var(--scrollbar-thumb-hover) var(--scrollbar-track)}.problem-pane:hover::-webkit-scrollbar-thumb,.editor-pane:hover::-webkit-scrollbar-thumb,pre:hover::-webkit-scrollbar-thumb,textarea:hover::-webkit-scrollbar-thumb{background-color:var(--scrollbar-thumb-hover)}