@import "https://fonts.googleapis.com/css2?family=Geist+Mono:wght@400;500;600;700&family=Geist:wght@400;500;600&display=swap";*,:before,:after,::backdrop{--tw-border-spacing-x:0;--tw-border-spacing-y:0;--tw-translate-x:0;--tw-translate-y:0;--tw-rotate:0;--tw-skew-x:0;--tw-skew-y:0;--tw-scale-x:1;--tw-scale-y:1;--tw-pan-x: ;--tw-pan-y: ;--tw-pinch-zoom: ;--tw-scroll-snap-strictness:proximity;--tw-gradient-from-position: ;--tw-gradient-via-position: ;--tw-gradient-to-position: ;--tw-ordinal: ;--tw-slashed-zero: ;--tw-numeric-figure: ;--tw-numeric-spacing: ;--tw-numeric-fraction: ;--tw-ring-inset: ;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-color:#3b82f680;--tw-ring-offset-shadow:0 0 #0000;--tw-ring-shadow:0 0 #0000;--tw-shadow:0 0 #0000;--tw-shadow-colored:0 0 #0000;--tw-blur: ;--tw-brightness: ;--tw-contrast: ;--tw-grayscale: ;--tw-hue-rotate: ;--tw-invert: ;--tw-saturate: ;--tw-sepia: ;--tw-drop-shadow: ;--tw-backdrop-blur: ;--tw-backdrop-brightness: ;--tw-backdrop-contrast: ;--tw-backdrop-grayscale: ;--tw-backdrop-hue-rotate: ;--tw-backdrop-invert: ;--tw-backdrop-opacity: ;--tw-backdrop-saturate: ;--tw-backdrop-sepia: ;--tw-contain-size: ;--tw-contain-layout: ;--tw-contain-paint: ;--tw-contain-style: }*,:before,:after{box-sizing:border-box;border:0 solid #e5e7eb}:before,:after{--tw-content:""}html,:host{-webkit-text-size-adjust:100%;tab-size:4;font-feature-settings:normal;font-variation-settings:normal;-webkit-tap-highlight-color:transparent;font-family:Geist,sans-serif;line-height:1.5}body{line-height:inherit;margin:0}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-feature-settings:normal;font-variation-settings:normal;font-family:Geist Mono,monospace;font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}button,input,optgroup,select,textarea{font-feature-settings:inherit;font-variation-settings:inherit;font-family:inherit;font-size:100%;font-weight:inherit;line-height:inherit;letter-spacing:inherit;color:inherit;margin:0;padding:0}button,select{text-transform:none}button,input:where([type=button]),input:where([type=reset]),input:where([type=submit]){-webkit-appearance:button;background-color:#0000;background-image:none}:-moz-focusring{outline:auto}:-moz-ui-invalid{box-shadow:none}progress{vertical-align:baseline}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}summary{display:list-item}blockquote,dl,dd,h1,h2,h3,h4,h5,h6,hr,figure,p,pre{margin:0}fieldset{margin:0;padding:0}legend{padding:0}ol,ul,menu{margin:0;padding:0;list-style:none}dialog{padding:0}textarea{resize:vertical}input::-moz-placeholder{opacity:1;color:#9ca3af}textarea::-moz-placeholder{opacity:1;color:#9ca3af}input::placeholder,textarea::placeholder{opacity:1;color:#9ca3af}button,[role=button]{cursor:pointer}:disabled{cursor:default}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}[hidden]:where(:not([hidden=until-found])){display:none}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);min-height:100vh;font-family:Geist Mono,monospace;font-size:16px;line-height:1.6}body:after{content:"";pointer-events:none;z-index:9999;background:repeating-linear-gradient(0deg,#0000,#0000 1px,#0000000a 1px 2px);position:fixed;inset:0}a{color:inherit}.container{width:100%}@media (width>=640px){.container{max-width:640px}}@media (width>=768px){.container{max-width:768px}}@media (width>=1024px){.container{max-width:1024px}}@media (width>=1280px){.container{max-width:1280px}}@media (width>=1536px){.container{max-width:1536px}}.btn-primary{background:var(--accent);min-height:44px;color:var(--bg);text-transform:uppercase;letter-spacing:.08em;cursor:pointer;border:none;border-radius:0;align-items:center;gap:4px;padding:10px 20px;font-size:15px;font-weight:600;text-decoration:none;transition:opacity .15s;display:inline-flex}.btn-primary:hover{opacity:.85}.btn-secondary{background:var(--surface-el);color:var(--text);text-transform:uppercase;letter-spacing:.08em;border:1px solid var(--border-em);cursor:pointer;border-radius:0;align-items:center;gap:4px;padding:8px 16px;font-size:15px;font-weight:500;text-decoration:none;transition:border-color .15s;display:inline-flex}.btn-secondary:hover{border-color:var(--text-muted)}.btn-ghost{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:0;align-items:center;gap:4px;padding:8px 16px;font-size:15px;font-weight:500;text-decoration:none;transition:color .15s,border-color .15s;display:inline-flex}.btn-ghost:hover{color:var(--text);border-color:var(--border-em)}.btn-share{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;border:1px solid var(--accent-bdr);cursor:pointer;background:0 0;border-radius:0;align-items:center;gap:4px;padding:8px 16px;font-size:15px;font-weight:500;text-decoration:none;transition:opacity .15s;display:inline-flex}.btn-share:hover{opacity:.8}.chip{text-transform:uppercase;letter-spacing:.14em;border-radius:2px;padding:3px 8px;font-size:9px;font-weight:500;display:inline-block}.chip-expert{color:var(--accent);background:var(--accent-dim);border:1px solid var(--accent-bdr)}.chip-easy{color:var(--success);background:#22c55e1a;border:1px solid #22c55e40}.chip-medium{color:var(--warning);background:#f59e0b1a;border:1px solid #f59e0b40}.chip-hard{color:var(--failure);background:#ef44441a;border:1px solid #ef444440}.chip-small{padding:2px 6px;font-size:8px}.terminal-window{border:1px solid var(--border);background:var(--surface);width:100%;overflow:hidden}.terminal-titlebar{background:var(--panel);border-bottom:1px solid var(--border);align-items:center;gap:6px;height:38px;padding:10px 14px;display:flex}.terminal-titlebar-centered .terminal-title{text-align:center;flex:1;margin-left:0}.terminal-dot{border-radius:50%;width:10px;height:10px}.terminal-dot-r{background:#ff5f56}.terminal-dot-y{background:#ffbd2e}.terminal-dot-g{background:#27c93f}.terminal-title{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-left:8px;font-size:10px}.terminal-body{padding:20px 24px 28px;font-size:15px;line-height:1.75}.prompt-line{margin-bottom:14px;font-size:15px}.prompt-path{color:var(--accent)}.prompt-cmd{color:var(--text)}.label-meta{text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);font-size:10px;font-weight:500}.cursor-blink{background:var(--accent);vertical-align:text-bottom;width:7px;height:13px;margin-left:3px;animation:1s step-end infinite blink;display:inline-block}.auth-screen{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px 16px;display:flex}.auth-card{background:var(--surface-el);border:1px solid var(--border);width:100%;max-width:360px;overflow:hidden}.auth-card-body{padding:28px 24px 0}.auth-card-footer{border-top:1px solid var(--border);flex-direction:column;gap:8px;margin-top:24px;padding:14px 24px;display:flex}.auth-product-mark{text-align:center;margin-bottom:28px}.auth-product-mark .wordmark{font-size:36px;font-weight:700;line-height:1}.auth-product-mark .tagline{color:var(--text-muted);margin-top:4px;font-size:15px}.auth-product-mark .cli-hint{color:var(--text-subtle);margin-top:8px;font-size:15px}.auth-tabs{border-bottom:1px solid var(--border);margin-bottom:20px;margin-left:-24px;margin-right:-24px;display:flex}.auth-tab{text-transform:uppercase;letter-spacing:.06em;text-align:center;color:var(--text-muted);border-bottom:2px solid #0000;flex:1;padding:9px 0;font-size:15px;font-weight:600;text-decoration:none;transition:color .15s,border-color .15s}.auth-tab:hover{color:var(--text)}.auth-tab.active{color:var(--text);border-bottom-color:var(--accent)}.auth-divider{align-items:center;gap:10px;margin:16px 0;display:flex}.auth-divider-line{background:var(--border);flex:1;height:1px}.auth-divider-text{color:var(--text-muted);letter-spacing:.04em;font-size:15px}.form-input{background:var(--surface);width:100%;color:var(--text);border:1px solid var(--border);border-radius:0;outline:none;padding:10px 12px;font-family:Geist Mono,monospace;font-size:15px;transition:border-color .15s}.form-input::placeholder{color:var(--text-subtle)}.form-input:focus{border-color:var(--text-muted)}.auth-form-field{margin-bottom:14px}.auth-label{margin-bottom:6px;display:block}.auth-forgot{color:var(--accent);cursor:pointer;letter-spacing:.02em;background:0 0;border:none;padding:0;font-family:Geist Mono,monospace;font-size:10px}.auth-forgot:hover{text-decoration:underline}.auth-error{color:var(--failure);background:#ef444414;border:1px solid #ef444440;margin-bottom:12px;padding:8px 12px;font-size:15px}.auth-remember{color:var(--text-muted);cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;margin-bottom:16px;font-size:15px;display:flex}.auth-cta{justify-content:center;width:100%;margin-bottom:4px;font-size:15px}.auth-cta:disabled{opacity:.5;cursor:not-allowed}.oauth-btn{background:var(--surface);width:100%;color:var(--text);border:1px solid var(--border);cursor:pointer;text-align:left;border-radius:0;align-items:center;gap:10px;padding:11px 16px;font-size:15px;font-weight:500;transition:background .15s,border-color .15s;display:flex}.oauth-btn+.oauth-btn{border-top:none}.oauth-btn:hover{background:var(--surface-el);border-color:var(--border-em)}.oauth-btn+.oauth-btn:hover{border-top:none}.text-sans{font-family:Geist,sans-serif}.label-meta{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;font-size:10px}.label-subtle{color:var(--text-subtle);font-size:10px}.link-accent{color:var(--accent);text-decoration:none}.link-accent:hover{text-decoration:underline}.filter-btn{text-transform:uppercase;letter-spacing:.1em;background:var(--surface);color:var(--text-muted);border:1px solid var(--border);cursor:pointer;border-left:none;border-radius:0;padding:10px 12px;font-size:10px;transition:background .1s,color .1s}.filter-btn:first-child{border-left:1px solid var(--border)}.filter-btn.active,.filter-btn:hover{background:var(--surface-el);color:var(--text)}.filter-select{text-transform:uppercase;letter-spacing:.08em;background:var(--surface);color:var(--text-muted);border:1px solid var(--border);cursor:pointer;border-radius:0;outline:none;padding:10px;font-size:10px;transition:border-color .1s}.filter-select:hover{border-color:var(--border-em)}.tbl-container{border:1px solid var(--border);background:var(--surface)}.tbl-header{background:var(--surface-el);border-bottom:1px solid var(--border);padding:0 16px}.tbl-header-cell{text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);padding:10px 0;font-size:10px}.tbl-row{padding:0 16px;text-decoration:none;transition:background .1s;display:grid}.tbl-row:not(:last-child){border-bottom:1px solid var(--border)}.tbl-row:hover{background:var(--surface-el)}.tbl-cell{color:var(--text);align-items:center;padding:12px 0;font-size:15px;display:flex}.tbl-cell-muted{color:var(--text-muted);font-size:15px}.btn-share{background:var(--accent-dim);min-height:44px;color:var(--accent);letter-spacing:.06em;border:1px solid var(--accent-bdr);cursor:pointer;border-radius:2px;align-items:center;padding:6px 12px;font-size:15px;font-weight:500;text-decoration:none;transition:border-color .15s;display:inline-flex}.btn-share:hover{border-color:var(--accent)}.cmd-option{border-bottom:1px solid var(--border);cursor:pointer;align-items:center;gap:12px;min-height:44px;margin:0 -20px;padding:7px 20px;text-decoration:none;transition:background .1s;display:flex}.cmd-option:last-of-type{border-bottom:none}.cmd-option:hover{background:var(--surface-el)}.site-footer{border-top:1px solid var(--border);background:var(--surface);padding:20px 24px}.site-footer-inner{text-align:center;max-width:960px;margin:0 auto}.form-textarea{background:var(--surface);width:100%;color:var(--text);border:1px solid var(--border);resize:vertical;border-radius:0;outline:none;min-height:120px;padding:10px 12px;font-family:Geist Mono,monospace;font-size:15px;line-height:1.6;transition:border-color .15s}.form-textarea::placeholder{color:var(--text-subtle)}.form-textarea:focus{border-color:var(--text-muted)}.form-alert-success{color:var(--success);background:#22c55e14;border:1px solid #22c55e40;margin-bottom:12px;padding:8px 12px;font-size:15px}.form-alert-error{color:var(--failure);background:#ef444414;border:1px solid #ef444440;margin-bottom:12px;padding:8px 12px;font-size:15px}.section-sep{border:none;border-top:1px solid var(--border)}.nav-link{color:var(--text-muted);letter-spacing:.02em;font-size:16px;text-decoration:none;transition:color .15s}.nav-link:hover{color:var(--text)}.nav-link.active{color:var(--accent)}.challenge-screen{background:var(--bg);flex-direction:column;height:100vh;display:flex;overflow:hidden}.challenge-topbar{background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;align-items:center;gap:10px;height:44px;padding:0 16px;display:flex;overflow:hidden}.challenge-topbar-right{color:var(--text-muted);align-items:center;gap:16px;margin-left:auto;font-size:15px;display:flex}.challenge-body{flex:1;min-height:0;display:flex;overflow:hidden}.challenge-left{border-right:1px solid var(--border);background:var(--panel);flex-direction:column;flex-shrink:0;width:260px;display:flex;overflow:hidden}.panel-tab.active{color:var(--text);background:var(--surface-el)}.panel-content{color:var(--text-muted);flex:1;padding:14px;font-size:15px;line-height:1.75;overflow-y:auto}.panel-content.readme{font-family:Geist,sans-serif}.file-item{color:var(--text-muted);cursor:pointer;border-left:2px solid #0000;align-items:center;gap:6px;padding:6px 12px;font-size:15px;transition:color .1s,background .1s;display:flex}.file-item:hover{color:var(--text);background:var(--surface)}.file-item.active{color:var(--text);border-left-color:var(--accent);background:var(--surface)}.lock-icon{color:var(--text-subtle);flex-shrink:0;display:flex}.challenge-editor{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.editor-tabbar{background:var(--surface);border-bottom:1px solid var(--border);height:32px;color:var(--text-muted);flex-shrink:0;justify-content:space-between;align-items:center;padding:0 16px;font-size:15px;display:flex}.monaco-editor-wrapper{flex:1;overflow:hidden}.monaco-diff-editor-wrapper{flex-direction:column;flex:1;display:flex;overflow:hidden}.diff-actions{background:var(--surface);border-top:1px solid var(--border);flex-shrink:0;justify-content:center;align-items:center;gap:12px;height:50px;padding:8px 16px;display:flex}.diff-apply-btn,.diff-reject-btn{padding:6px 16px;font-size:15px}.panel-content{flex:1;padding:16px 20px;overflow-y:auto}.readme-heading{color:var(--text);margin-top:16px;margin-bottom:8px;font-family:Geist,sans-serif;font-weight:600}.readme-heading:first-child{margin-top:0}.readme-paragraph{color:var(--text);margin-bottom:12px;font-family:Geist,sans-serif;font-size:15px;line-height:1.6}.readme-inline-code{background:var(--surface);color:var(--accent);border-radius:2px;padding:2px 4px;font-family:Geist Mono,monospace;font-size:15px}.readme-code-block{background:var(--surface);color:var(--text);border-radius:2px;margin-bottom:12px;padding:12px;font-family:Geist Mono,monospace;font-size:15px;line-height:1.6;overflow-x:auto}.readme-list{color:var(--text);margin-bottom:12px;padding-left:20px;font-family:Geist,sans-serif;font-size:15px;line-height:1.6}.readme-list-item{margin-bottom:4px}.readme-link{color:var(--accent);border-bottom:1px solid #0000;text-decoration:none}.readme-link:hover{border-bottom-color:var(--accent)}.readme-bold{font-weight:600}.test-empty{color:#444;font-family:Geist Mono,monospace;font-size:15px;font-style:italic}.test-group-label{text-transform:uppercase;letter-spacing:.12em;color:var(--text-muted);border-bottom:1px solid var(--border);margin:14px 0 6px;padding-bottom:4px;font-size:9px}.test-group-label:first-child{margin-top:0}.test-case{border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:4px 0;font-family:Geist Mono,monospace;font-size:15px;line-height:1.4;display:flex}.test-case:last-child{border-bottom:none}.test-case-icon-pass{color:var(--success);flex-shrink:0;font-size:15px}.test-case-icon-fail{color:var(--failure);flex-shrink:0;font-size:15px}.test-case-name{color:var(--text);word-break:break-all;flex:1;font-size:10.5px}.test-case-name.fail{color:var(--failure)}.editor-tabs{background:var(--panel);border-bottom:1px solid var(--border);scrollbar-width:none;flex-shrink:0;align-items:stretch;height:36px;display:flex;overflow:auto hidden}.editor-tabs::-webkit-scrollbar{display:none}.editor-tab{color:var(--text-muted);border:none;border-right:1px solid var(--border);cursor:pointer;white-space:nowrap;background:0 0;border-bottom:2px solid #0000;flex-shrink:0;align-items:center;gap:5px;padding:0 12px;font-size:15px;transition:color .1s,background .1s;display:inline-flex}.editor-tab:hover{color:var(--text);background:var(--surface)}.editor-tab.active{color:var(--text);background:var(--surface-el);border-bottom-color:var(--accent)}.editor-tab-close{opacity:0;color:var(--text-subtle);margin-left:6px;font-size:15px;line-height:1;transition:opacity .1s}.editor-tab:hover .editor-tab-close,.editor-tab.active .editor-tab-close{opacity:1}.editor-tab-close:hover{color:var(--text)}.editor-tab-spacer{flex:1;min-width:8px}.editor-tab-actions{border-left:1px solid var(--border);flex-shrink:0;align-items:center;gap:8px;padding:0 10px;display:flex}.btn-run-tests{border:1px solid var(--accent-bdr);height:24px;color:var(--accent);text-transform:uppercase;letter-spacing:.06em;cursor:pointer;white-space:nowrap;background:0 0;border-radius:0;padding:0 10px;font-family:Geist Mono,monospace;font-size:10px;transition:color .1s,border-color .1s,background .1s}.btn-run-tests:hover{background:#d4a02714}.btn-run-tests:disabled{opacity:.35;cursor:not-allowed}.btn-run-tests.running{color:var(--warning);border-color:#f59e0b4d}.panel-strip{cursor:pointer;background:var(--panel);border:none;border-right:1px solid var(--border);width:20px;color:var(--text-subtle);flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;transition:color .1s,background .1s;display:flex}.panel-strip:hover{color:var(--text-muted);background:var(--surface)}.panel-strip.panel-strip-right{border-right:none;border-left:1px solid var(--border)}.panel-header{border-bottom:1px solid var(--border);background:var(--surface-el);flex-shrink:0;justify-content:space-between;align-items:center;height:32px;padding:0 8px 0 16px;display:flex}.panel-header-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:10px;font-weight:500}.panel-toggle-btn{color:var(--text-subtle);cursor:pointer;background:0 0;border:none;align-items:center;padding:3px 4px;transition:color .1s;display:flex}.panel-toggle-btn:hover{color:var(--text-muted)}.chat-resize-handle{cursor:ew-resize;z-index:10;background:0 0;flex-shrink:0;width:4px;transition:background-color .15s}.chat-resize-handle:hover{background-color:var(--text-muted)}.challenge-ai{border-left:1px solid var(--border);background:var(--surface);flex-direction:column;flex-shrink:0;display:flex;overflow:hidden}.challenge-bottom{border-top:1px solid var(--border);background:var(--surface);flex-direction:column;flex-shrink:0;display:flex;position:relative;overflow:hidden}.bottom-resize-handle{cursor:ns-resize;z-index:10;height:4px;transition:background-color .1s;position:absolute;top:0;left:0;right:0}.bottom-resize-handle:hover{background-color:var(--text-muted)}.bottom-panels{flex-direction:row;flex:1;min-height:0;display:flex;overflow:hidden}.bottom-section{flex-direction:column;min-width:0;display:flex;overflow:hidden}.console-section{border-right:1px solid var(--border);background:var(--bg);flex:1}.test-section{background:var(--panel);flex-shrink:0;width:380px}.bottom-section-header{border-bottom:1px solid var(--border);background:var(--surface-el);flex-shrink:0;align-items:center;height:30px;padding:0 12px;display:flex}.bottom-section-label{text-transform:uppercase;letter-spacing:.1em;color:var(--text-muted);font-size:10px;font-weight:600}.console-clear-btn{border:1px solid var(--border-em);color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;cursor:pointer;background:0 0;border-radius:0;padding:1px 6px;font-family:Geist Mono,monospace;font-size:9px;transition:color .1s,border-color .1s}.console-clear-btn:hover{color:var(--text);border-color:var(--text-muted)}.bottom-test-summary{letter-spacing:.04em;font-size:10px;font-weight:600}.bottom-test-summary.pass{color:var(--success)}.bottom-test-summary.fail{color:var(--failure)}.console-body{color:var(--text);white-space:pre-wrap;word-break:break-word;background:var(--bg);flex:1;margin:0;padding:10px 14px;font-family:Geist Mono,monospace;font-size:13px;line-height:1.7;overflow-y:scroll}.console-empty{color:#444;font-style:italic}.console-line{display:block}.console-line.line-pass{color:var(--success)}.console-line.line-fail{color:var(--failure)}.console-line.line-meta{color:var(--accent)}.test-output-body{flex:1;padding:10px 14px;font-family:Geist Mono,monospace;font-size:15px;overflow-y:auto}.chatbox-history{flex-direction:column;flex:1;gap:8px;min-height:0;padding:14px 16px 10px;display:flex;overflow-y:auto}.chatbox-turn-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;margin-bottom:2px;font-size:9px}.chatbox-turn-user{color:var(--accent);white-space:pre-wrap;font-size:15px;line-height:1.6}.chatbox-turn-ai{color:var(--text);background:var(--surface-el);border:1px solid var(--border);flex-direction:column;gap:6px;padding:6px 10px;font-size:15px;line-height:1.6;display:flex}.chatbox-turn-ai-text{white-space:pre-wrap}.chatbox-code-block{border:1px solid var(--border);background:var(--bg);position:relative}.chatbox-code-header{background:var(--panel);border-bottom:1px solid var(--border);letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted);justify-content:space-between;align-items:center;padding:3px 8px;font-size:9px;display:flex}.chatbox-code-header-lang{color:var(--accent);font-weight:600}.chatbox-code-apply-btn{border:1px solid var(--border-em);color:var(--text-muted);letter-spacing:.04em;cursor:pointer;background:0 0;padding:2px 7px;font-family:Geist Mono,monospace;font-size:9px;transition:color .15s,border-color .15s,background .15s}.chatbox-code-apply-btn:hover{color:var(--text);border-color:var(--text-muted)}.chatbox-code-apply-btn--diff{color:var(--success);letter-spacing:.06em;background:#22c55e14;border:1px solid #22c55e66;padding:2px 10px;font-weight:600;box-shadow:0 0 6px #22c55e1f}.chatbox-code-apply-btn--diff:hover{background:#22c55e29;border-color:#22c55eb3;box-shadow:0 0 10px #22c55e38}.chatbox-hunk-list{border-top:1px solid var(--border);background:#00000026;flex-direction:column;gap:3px;padding:4px 8px;display:flex}.chatbox-hunk-item{align-items:center;gap:8px;padding:2px 0;display:flex}.chatbox-hunk-label{color:var(--text-muted);white-space:nowrap;text-overflow:ellipsis;flex:1;font-family:Geist Mono,monospace;font-size:10px;overflow:hidden}.chatbox-hunk-apply-btn{color:#22c55ed9;cursor:pointer;letter-spacing:.04em;background:0 0;border:1px solid #22c55e4d;border-radius:3px;flex-shrink:0;padding:1px 8px;font-family:Geist Mono,monospace;font-size:10px;transition:background .15s,border-color .15s}.chatbox-hunk-apply-btn:hover{background:#22c55e1f;border-color:#22c55e99}.chatbox-code-body{color:var(--text);white-space:pre;margin:0;padding:8px 10px;font-family:Geist Mono,monospace;font-size:15px;line-height:1.6;overflow-x:auto}.chatbox-code-line-add{color:#4ade80}.chatbox-code-line-remove{color:#f87171}.chatbox-code-line-meta{color:var(--text-muted)}.chatbox-empty{color:var(--text-muted);font-size:15px}.chatbox-input-bar{border-top:1px solid var(--border);background:var(--panel);flex-direction:column;flex-shrink:0;gap:6px;padding:8px 12px;display:flex;position:relative}.chatbox-textarea{resize:none;background:var(--bg);color:var(--text);border:1px solid var(--border);outline:none;flex:1;padding:7px 10px;font-family:Geist Mono,monospace;font-size:15px;line-height:1.6;transition:border-color .15s}.chatbox-textarea:focus{border-color:var(--text-muted)}.chatbox-textarea-row{align-items:flex-start;gap:6px;display:flex}.chatbox-textarea-row .chatbox-textarea{flex:1}.chatbox-autocomplete{background:var(--surface-el);border:1px solid var(--border-em);z-index:100;max-height:160px;position:absolute;bottom:calc(100% + 2px);left:0;right:0;overflow-y:auto}.chatbox-autocomplete-item{text-align:left;width:100%;color:var(--text);cursor:pointer;border:none;border-bottom:1px solid var(--border);background:0 0;padding:6px 10px;font-family:Geist Mono,monospace;font-size:15px;transition:background .1s;display:block}.chatbox-autocomplete-item:last-child{border-bottom:none}.chatbox-autocomplete-item:hover,.chatbox-autocomplete-item.active{background:var(--surface);color:var(--accent)}.chatbox-tool-log{color:var(--text-muted);letter-spacing:.04em;padding:2px 0;font-family:Geist Mono,monospace;font-size:10px}.chatbox-tool-log.pass{color:var(--success)}.chatbox-tool-log.fail{color:var(--failure)}.chatbox-ai-tools{flex-wrap:wrap;gap:6px;margin:4px 0 8px;display:flex}.chatbox-ai-tool-pill{letter-spacing:.04em;color:var(--text-muted);cursor:default;background:#ffffff0a;border:1px solid #ffffff14;border-radius:3px;padding:2px 6px;font-family:Geist Mono,monospace;font-size:10px}.challenge-statusbar{background:var(--surface-el);border-top:1px solid var(--border);letter-spacing:.08em;flex-shrink:0;align-items:center;gap:16px;height:32px;padding:0 12px;font-size:10px;display:flex}.statusbar-mode{color:var(--accent);text-transform:uppercase;letter-spacing:.1em;font-weight:600}.statusbar-dims{align-items:center;gap:10px;display:flex}.dim-indicator{color:var(--text-muted);letter-spacing:.08em;align-items:center;gap:4px;font-size:9px;display:flex}.dim-bar{background:var(--accent);opacity:.35;width:20px;height:4px}.statusbar-right{color:var(--text-muted);gap:16px;margin-left:auto;font-size:10px;display:flex}.score-overlay{z-index:200;background:#000000d9;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.score-card{background:var(--surface-el);border:1px solid var(--border);width:100%;max-width:860px;max-height:90vh;overflow-y:auto}.score-body{grid-template-columns:1fr 1fr;min-height:0;display:grid}.score-col-left{border-right:1px solid var(--border);flex-direction:column;display:flex}.score-col-right{flex-direction:column;display:flex;overflow-y:auto}.score-hero{text-align:center;border-bottom:1px solid var(--border);padding:28px 32px 24px}.score-number{color:var(--text);letter-spacing:-.02em;font-size:72px;font-weight:700;line-height:1}.score-denom{color:var(--text-muted);font-size:24px;font-weight:400}.score-dims{border-bottom:1px solid var(--border);flex:1;padding:16px 32px}.score-dim-row{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:7px 0;font-size:15px;display:flex}.score-dim-row:last-child{border-bottom:none}.score-dim-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;font-size:15px}.score-dim-value{color:var(--text);font-size:18px;font-weight:600}.score-actions{align-items:center;gap:12px;padding:16px 32px;display:flex}.score-reasoning{border-bottom:1px solid var(--border);flex:1;padding:16px 24px}.reasoning-row{border-bottom:1px solid var(--border);gap:12px;padding:8px 0;font-size:15px;display:flex}.reasoning-row:last-child{border-bottom:none}.reasoning-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;min-width:28px;font-size:10px}.reasoning-text{color:var(--text);flex:1}.reasoning-locked{border-bottom:1px solid var(--border);color:var(--text-muted);flex-direction:column;align-items:center;gap:8px;padding:24px 40px;font-size:15px;display:flex}.reasoning-locked .lock-icon{color:var(--accent);align-items:center;display:flex}.btn-upgrade{background:var(--accent-dim);border:1px solid var(--accent-bdr);color:var(--accent);font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;cursor:pointer;margin-top:8px;padding:6px 16px;font-size:10px}.btn-upgrade:hover{background:var(--accent);color:var(--bg)}.score-summary{color:var(--text-muted);border-bottom:1px solid var(--border);gap:24px;padding:12px 40px;font-size:15px;display:flex}.weakest-link{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin-left:auto;font-size:15px;text-decoration:none}.weakest-link:hover{text-decoration:underline}.modal-overlay{z-index:300;background:#000c;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal-card{width:100%;max-width:480px}.landing-hero-h1{letter-spacing:-.02em;margin-bottom:8px;font-size:52px;font-weight:700;line-height:1.1}.hero-columns{grid-template-columns:1fr 1fr;align-items:stretch;gap:16px;display:grid}@media (width<=800px){.hero-columns{grid-template-columns:1fr}.landing-hero-h1{font-size:36px}}@media (width<=640px){.landing-hero-h1{font-size:28px}}.visible{visibility:visible}.collapse{visibility:collapse}.fixed{position:fixed}.absolute{position:absolute}.relative{position:relative}.sticky{position:sticky}.mx-auto{margin-left:auto;margin-right:auto}.ml-2{margin-left:.5rem}.mt-1{margin-top:.25rem}.mt-6{margin-top:1.5rem}.block{display:block}.inline-block{display:inline-block}.inline{display:inline}.flex{display:flex}.inline-flex{display:inline-flex}.table{display:table}.grid{display:grid}.hidden{display:none}.h-4{height:1rem}.h-6{height:1.5rem}.min-h-screen{min-height:100vh}.w-11{width:2.75rem}.w-16{width:4rem}.w-4{width:1rem}.w-full{width:100%}.max-w-6xl{max-width:72rem}.flex-1{flex:1}.translate-x-1{--tw-translate-x:.25rem;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.translate-x-6{--tw-translate-x:1.5rem;transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.transform{transform:translate(var(--tw-translate-x), var(--tw-translate-y)) rotate(var(--tw-rotate)) skewX(var(--tw-skew-x)) skewY(var(--tw-skew-y)) scaleX(var(--tw-scale-x)) scaleY(var(--tw-scale-y))}.cursor-pointer{cursor:pointer}.resize{resize:both}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.space-x-3>:not([hidden])~:not([hidden]){--tw-space-x-reverse:0;margin-right:calc(.75rem * var(--tw-space-x-reverse));margin-left:calc(.75rem * calc(1 - var(--tw-space-x-reverse)))}.space-y-2>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.5rem * var(--tw-space-y-reverse))}.space-y-3>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(.75rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(.75rem * var(--tw-space-y-reverse))}.space-y-4>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(1rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1rem * var(--tw-space-y-reverse))}.space-y-6>:not([hidden])~:not([hidden]){--tw-space-y-reverse:0;margin-top:calc(1.5rem * calc(1 - var(--tw-space-y-reverse)));margin-bottom:calc(1.5rem * var(--tw-space-y-reverse))}.divide-y>:not([hidden])~:not([hidden]){--tw-divide-y-reverse:0;border-top-width:calc(1px * calc(1 - var(--tw-divide-y-reverse)));border-bottom-width:calc(1px * var(--tw-divide-y-reverse))}.divide-border>:not([hidden])~:not([hidden]){--tw-divide-opacity:1;border-color:rgb(42 42 42/var(--tw-divide-opacity,1))}.overflow-hidden{overflow:hidden}.rounded{border-radius:0}.rounded-full{border-radius:9999px}.rounded-md{border-radius:.375rem}.border{border-width:1px}.border-b-2{border-bottom-width:2px}.border-t{border-top-width:1px}.border-amber-400{--tw-border-opacity:1;border-color:rgb(251 191 36/var(--tw-border-opacity,1))}.border-blue-400{--tw-border-opacity:1;border-color:rgb(96 165 250/var(--tw-border-opacity,1))}.border-border{--tw-border-opacity:1;border-color:rgb(42 42 42/var(--tw-border-opacity,1))}.border-green-400{--tw-border-opacity:1;border-color:rgb(74 222 128/var(--tw-border-opacity,1))}.border-purple-400{--tw-border-opacity:1;border-color:rgb(192 132 252/var(--tw-border-opacity,1))}.border-yellow-400{--tw-border-opacity:1;border-color:rgb(250 204 21/var(--tw-border-opacity,1))}.bg-amber-500{--tw-bg-opacity:1;background-color:rgb(245 158 11/var(--tw-bg-opacity,1))}.bg-border{--tw-bg-opacity:1;background-color:rgb(42 42 42/var(--tw-bg-opacity,1))}.bg-panel{--tw-bg-opacity:1;background-color:rgb(17 17 17/var(--tw-bg-opacity,1))}.bg-surface{--tw-bg-opacity:1;background-color:rgb(20 20 20/var(--tw-bg-opacity,1))}.bg-white{--tw-bg-opacity:1;background-color:rgb(255 255 255/var(--tw-bg-opacity,1))}.px-1\.5{padding-left:.375rem;padding-right:.375rem}.px-2{padding-left:.5rem;padding-right:.5rem}.px-3{padding-left:.75rem;padding-right:.75rem}.px-4{padding-left:1rem;padding-right:1rem}.py-0\.5{padding-top:.125rem;padding-bottom:.125rem}.py-1{padding-top:.25rem;padding-bottom:.25rem}.py-12{padding-top:3rem;padding-bottom:3rem}.py-3{padding-top:.75rem;padding-bottom:.75rem}.py-8{padding-top:2rem;padding-bottom:2rem}.pt-3{padding-top:.75rem}.text-left{text-align:left}.text-center{text-align:center}.text-right{text-align:right}.text-sm{font-size:.875rem;line-height:1.25rem}.text-xs{font-size:.75rem;line-height:1rem}.font-medium{font-weight:500}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase}.italic{font-style:italic}.tracking-wider{letter-spacing:.05em}.text-amber-400{--tw-text-opacity:1;color:rgb(251 191 36/var(--tw-text-opacity,1))}.text-blue-400{--tw-text-opacity:1;color:rgb(96 165 250/var(--tw-text-opacity,1))}.text-green-400{--tw-text-opacity:1;color:rgb(74 222 128/var(--tw-text-opacity,1))}.text-purple-400{--tw-text-opacity:1;color:rgb(192 132 252/var(--tw-text-opacity,1))}.text-red-400{--tw-text-opacity:1;color:rgb(248 113 113/var(--tw-text-opacity,1))}.text-yellow-400{--tw-text-opacity:1;color:rgb(250 204 21/var(--tw-text-opacity,1))}.underline{text-decoration-line:underline}.filter{filter:var(--tw-blur) var(--tw-brightness) var(--tw-contrast) var(--tw-grayscale) var(--tw-hue-rotate) var(--tw-invert) var(--tw-saturate) var(--tw-sepia) var(--tw-drop-shadow)}.transition{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke,opacity,box-shadow,transform,filter,-webkit-backdrop-filter,backdrop-filter;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-colors{transition-property:color,background-color,border-color,text-decoration-color,fill,stroke;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}.transition-transform{transition-property:transform;transition-duration:.15s;transition-timing-function:cubic-bezier(.4,0,.2,1)}:root{--bg:#0d0d0d;--surface:#141414;--surface-el:#1c1c1c;--panel:#111;--border:#2a2a2a;--border-em:#3a3a3a;--text:#e8e6e1;--text-muted:#6b6b6b;--text-subtle:#333;--accent:#d4a027;--accent-dim:#d4a0271a;--accent-bdr:#d4a02740;--success:#22c55e;--failure:#ef4444;--warning:#f59e0b}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}.disabled\:opacity-50:disabled{opacity:.5}