:root{color-scheme:dark;--bg:#08121b;--bg2:#0a1720;--panel:#0d1a25;--panel2:#10222e;--stroke:#233744;--stroke2:#2c4350;--text:#eaf2f3;--muted:#8ba5af;--dim:#617b87;--mint:#5fe1bd;--mint-deep:#184d49;--blue:#84a7fe;--violet:#ba9bf5;--warn:#f3ab9c;--mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;--sans:Inter,"Segoe UI",Arial,Helvetica,sans-serif}
*{box-sizing:border-box}
html{min-width:320px;scroll-behavior:smooth}
body{margin:0;background:radial-gradient(ellipse 70% 420px at 49% -120px,#123341 0%,transparent 78%),var(--bg);color:var(--text);font:14px/1.5 var(--sans);-webkit-font-smoothing:antialiased}
button,textarea,input{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.42}
button:focus-visible,a:focus-visible,textarea:focus-visible{outline:2px solid var(--mint);outline-offset:3px}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
.app-shell{min-height:100vh;display:flex;flex-direction:column}
.topbar{height:80px;border-bottom:1px solid rgba(111,147,164,.16);padding:0 max(30px,calc((100vw - 1420px)/2));display:flex;align-items:center;justify-content:space-between;gap:12px;background:rgba(8,20,29,.77)}
.brand{display:flex;gap:13px;align-items:center;line-height:1.1}
.brand-icon{width:41px;height:41px;display:grid;place-items:center;border-radius:12px;border:1px solid #2c544f;background:#11302d}
.brand-icon svg{width:34px;height:34px;fill:#5fe1bd}.brand-icon svg .icon-target{fill:#8ea9ff}.brand-icon svg path{stroke:#cee6df;stroke-width:2;fill:none}
.brand strong{display:block;font-size:16px;letter-spacing:1.25px;font-weight:800;color:#f2f8f7}
.brand small{display:block;font:10px var(--mono);letter-spacing:1.5px;margin-top:6px;color:#9db0b9}
.brand-dot{color:var(--mint);padding:0 3px}
.topbar-right{display:flex;align-items:center;gap:18px}.build-tag{font:11px var(--mono);color:#718c95;padding:5px 9px;border:1px solid #28404b;border-radius:6px}.online-pill{display:flex;align-items:center;gap:8px;color:#b7d2ca;font-size:12px}.pulse,.result-state-dot{display:inline-block;background:var(--mint);width:7px;height:7px;border-radius:50%;box-shadow:0 0 0 3px rgba(95,225,189,.11)}.header-github{display:flex;gap:8px;align-items:center;color:#d1dedf;border-left:1px solid #243943;padding-left:19px;font-size:13px}.header-github:hover{color:var(--mint)}
.main{width:min(1420px,100%);margin:0 auto;padding:47px 30px 60px;flex:1}
.intro{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:38px}.eyebrow{font:10px var(--mono);color:var(--mint);letter-spacing:2.4px;display:flex;align-items:center;gap:12px;margin-bottom:14px}.eyebrow-line,.mini-line{width:20px;height:1px;background:var(--mint);display:inline-block}.slash{color:#6e7f87}
h1{font-size:clamp(32px,3.3vw,49px);font-weight:750;letter-spacing:-1.8px;line-height:1.16;margin:0 0 14px}h1 span{color:var(--mint)}.intro p{max-width:650px;color:#9eb1b9;margin:0;font-size:14px;line-height:1.75}.intro p strong{color:#e4f5ef}
.intro-chip{border:1px solid #2d4650;background:linear-gradient(115deg,#102933,#10202b);padding:13px 15px;min-width:246px;border-radius:9px;display:flex;align-items:center;gap:12px;margin-bottom:6px;color:#c3d7dc;font-size:11px}.intro-chip-icon{height:34px;width:34px;display:grid;place-items:center;border-radius:8px;background:#173c3c;color:var(--mint);font-size:21px}.intro-chip strong{display:block;color:#7d9da6;font-size:11px;font-weight:400;margin-top:2px}
.workspace{display:grid;grid-template-columns:minmax(360px,.91fr) minmax(520px,1.31fr);gap:21px;align-items:stretch}.panel{background:linear-gradient(160deg,rgba(15,33,43,.94),rgba(10,25,35,.96));border:1px solid var(--stroke);border-radius:13px;box-shadow:0 12px 42px rgba(0,0,0,.1);overflow:hidden;min-width:0}.editor-panel{display:flex;flex-direction:column}.result-panel{display:flex;flex-direction:column}
.panel-heading{padding:22px 23px;border-bottom:1px solid #253944;display:flex;justify-content:space-between;align-items:center;min-height:82px}.panel-title{display:flex;align-items:center;gap:13px}.panel-title h2{font-size:15px;line-height:1.2;margin:0;color:#eff8f8;font-weight:650}.panel-title p{color:#849ba6;font-size:12px;margin:5px 0 0}.panel-symbol{font:15px var(--mono);border:1px solid #255147;background:#143c37;color:var(--mint);width:36px;height:36px;display:grid;place-items:center;border-radius:9px}.panel-symbol-result{border-color:#334862;background:#213247;color:#a5b8ff;font-size:22px}.file-type{font:11px var(--mono);color:#87b7ac;border:1px solid #264c49;padding:6px 10px;border-radius:5px}.result-state{display:flex;align-items:center;gap:8px;color:#a0b3b9;font-size:11px}.result-state.ready{color:var(--mint)}.result-state.failed{color:var(--warn)}.result-state.failed .result-state-dot{background:var(--warn)}
.editor-actions{padding:13px 17px;display:flex;gap:5px;flex-wrap:wrap;border-bottom:1px solid #1d303b}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;background:transparent;border-radius:7px;white-space:nowrap}.btn-quiet{padding:9px 10px;color:#a8bec4;font-size:12px}.btn-quiet span{font-size:16px;color:#7aa59f}.btn-quiet:hover{background:#19303b;color:#fff}.code-wrap{position:relative;display:flex;background:#0b1822;border-bottom:1px solid #22343e;min-height:420px;flex:1;overflow:hidden}.editor-gutter{width:50px;flex:none;padding:19px 10px 20px 0;text-align:right;white-space:pre;overflow:hidden;line-height:22px;color:#55717f;background:#0a1720;border-right:1px solid #1d343f;font:12px/22px var(--mono);user-select:none}.code-wrap textarea{flex:1;width:100%;min-width:0;min-height:420px;border:0;resize:vertical;background:transparent;color:#d7e9df;padding:19px 20px;font:12px/22px var(--mono);tab-size:2;outline:none!important;white-space:pre;overflow:auto;caret-color:var(--mint)}.code-wrap textarea::placeholder{color:#5d7783}.editor-foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:12px 20px;color:#6f9099;font:10px var(--mono)}.btn-primary{background:var(--mint);color:#092520;font-size:14px;font-weight:750;margin:5px 19px 15px;padding:16px 20px;box-shadow:0 8px 24px rgba(58,225,170,.12)}.btn-primary:hover:not(:disabled){background:#82e9cc}.btn-primary:disabled{opacity:.58}.play-triangle{font-size:12px}.btn-arrow{margin-left:auto;font-size:21px;font-weight:400;line-height:0}.alert{margin:0 19px 15px;padding:12px 15px;background:#42292c;border:1px solid #774648;border-radius:6px;color:#ffc0b3;font-size:12px;word-break:break-word}.engine-note{display:flex;align-items:start;gap:10px;margin:0 19px 21px;padding:11px 12px;background:#102734;border:1px solid #24404c;border-radius:7px;color:#8eaeba;font-size:11px;line-height:1.6}.engine-note b{color:#b3cece;font-weight:550}.note-symbol{font:bold 13px var(--mono);border:1px solid #527180;flex:none;color:#8cbfcb;width:17px;height:17px;display:grid;place-items:center;border-radius:100%}
.stats{padding:19px 19px 18px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;border-bottom:1px solid #243843}.stat{background:#10212d;border:1px solid #263b48;border-radius:8px;padding:15px 14px 12px;min-width:0}.stat-label{color:#8da5af;letter-spacing:.5px;font:9px/1.25 var(--mono);display:block;min-height:24px}.stat strong{font:600 31px/1.4 var(--sans);display:block;color:#e7f3f1;letter-spacing:-1px}.stat:first-child strong,.stat:nth-child(4) strong{color:var(--mint)}.stat small{font-size:10px;color:#708994}
.tabs{display:flex;align-items:center;gap:4px;padding:14px 19px 0;border-bottom:1px solid #273c47;overflow-x:auto}.tab{position:relative;padding:12px 17px 13px;border:0;background:none;color:#849eaa;font-size:12px;font-weight:550;white-space:nowrap}.tab:hover{color:#e0f2f4}.tab.active{color:var(--mint)}.tab.active:after{content:"";position:absolute;bottom:0;left:10px;right:10px;height:2px;background:var(--mint);border-radius:2px}.tab span{font-size:15px;margin-right:4px}
.tab-content{flex:1;min-height:390px}.graph-pane{display:flex;flex-direction:column}.graph-toolbar{padding:13px 17px;display:flex;justify-content:space-between;gap:10px;align-items:center}.legend{display:flex;align-items:center;gap:13px;flex-wrap:wrap}.legend span{display:flex;gap:6px;align-items:center;font-size:10px;color:#93aab0}.legend i{display:inline-block;width:8px;height:8px;border-radius:2px}.legend-source{background:var(--blue)}.legend-intermediate{background:var(--violet)}.legend-target{background:var(--mint)}.zoom-tools{display:flex;align-items:center;gap:4px;color:#97aeb4;font:10px var(--mono)}.zoom-tools button{color:#b2c3c8;border:1px solid #314653;background:#122531;border-radius:5px;font-size:14px;width:25px;height:25px;line-height:1}.zoom-tools button:hover{background:#1c3846}.zoom-tools span{min-width:36px;text-align:center}
.graph-viewport{margin:0 17px;min-height:284px;flex:1;background-color:#0b1a24;background-image:radial-gradient(#284451 0.85px,transparent .85px);background-size:22px 22px;border:1px solid #24404e;border-radius:8px;overflow:auto;position:relative;display:flex;align-items:center;justify-content:center}.graph-content{width:100%;min-height:284px;display:flex;align-items:center;justify-content:center;overflow:auto}.graph-content svg{display:block;flex:none;touch-action:pan-x pan-y}.graph-placeholder{min-height:284px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:25px;gap:9px}.graph-placeholder strong{font-size:13px;color:#b9ced1;font-weight:650}.graph-placeholder>span{font-size:11px;color:#64828e;max-width:260px}.placeholder-art{height:64px;width:154px;display:flex;align-items:center;justify-content:center;margin-bottom:7px}.art-box{width:45px;height:30px;border:1.5px solid #4c7484;background:#12303b;border-radius:6px;display:block}.art-b{border-color:#367d72;background:#174337}.art-line{display:block;width:46px;border-top:2px dashed #386375;position:relative}.art-line:after{content:"";position:absolute;right:-1px;top:-5px;border-left:5px solid #538c86;border-top:4px solid transparent;border-bottom:4px solid transparent}
.mobile-graph-hint{display:none}.graph-foot{display:flex;justify-content:space-between;gap:10px;align-items:center;margin:0 18px;padding:12px 2px;color:#728e97;font:10px var(--mono);border-bottom:1px solid #223743}.text-action{border:0;background:none;color:#80cbbb;font-size:11px;padding:4px 0;white-space:nowrap}.text-action:hover:not(:disabled){color:#b1ffe2}.raw-pane{padding:14px 19px}.raw-toolbar{display:flex;align-items:center;justify-content:space-between;color:#809eaa;font:11px var(--mono);padding:0 4px 12px}.raw-output{margin:0;min-height:286px;max-height:440px;white-space:pre-wrap;word-break:break-word;overflow:auto;border:1px solid #27404b;border-radius:7px;padding:18px;background:#091923;color:#c7dfd2;font:12px/1.7 var(--mono)}.table-results{max-height:445px;overflow:auto;display:flex;flex-direction:column;gap:10px}.table-item{background:#10232e;border:1px solid #27404b;border-radius:8px;padding:16px}.table-item-head{display:flex;align-items:center;gap:9px;justify-content:space-between;margin-bottom:12px}.table-item-head strong{font-size:13px;color:#deeeeb}.table-kind{background:#1a363b;color:#93ddc8;border:1px solid #2a5954;padding:4px 7px;border-radius:4px;font:10px var(--mono)}.table-detail{display:grid;grid-template-columns:75px 1fr;gap:8px;margin-top:8px;font-size:12px}.table-detail>span:first-child{color:#89a5ad}.table-detail code{font:11px/1.65 var(--mono);color:#cce5e0;overflow-wrap:anywhere}.tag-list{display:flex;flex-wrap:wrap;gap:5px}.tag{background:#172e3a;color:#bdd1e8;border:1px solid #315063;border-radius:4px;padding:3px 6px;font:11px var(--mono);overflow-wrap:anywhere}.tag.target{color:#9ce5d0;border-color:#27695a;background:#15372f}.empty-text{text-align:center;margin:100px 0;color:#829ca7}
.result-actions{margin-top:auto;padding:16px 19px;border-top:1px solid #243843;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.btn-outline{border:1px solid #385d5d;color:#b3dbd4;background:#152b33;padding:11px 14px;font-size:11px;font-weight:600}.btn-outline:hover:not(:disabled){background:#1d4142;border-color:#5caaa0}.hint{margin-left:auto;font-size:10px;color:#698792}
.explain{margin-top:39px;border:1px solid #203641;border-radius:11px;background:linear-gradient(120deg,rgba(11,28,37,.95),rgba(11,28,37,.38));padding:24px 28px}.explain-head{font:10px var(--mono);letter-spacing:1.7px;color:var(--mint);display:flex;align-items:center;gap:10px}.mini-line{width:13px}.explain-grid{margin-top:23px;display:grid;grid-template-columns:repeat(3,1fr);gap:33px}.explain-grid>div{display:grid;grid-template-columns:34px 1fr;column-gap:11px;align-items:start}.step-no{font:11px var(--mono);color:var(--mint);border:1px solid #31584f;border-radius:5px;padding:5px;grid-row:span 2;text-align:center}.explain-grid strong{color:#d2e5e6;font-size:12px;font-weight:600}.explain-grid p{color:#7f9fa9;font-size:11px;margin:5px 0 0}
.footer{width:100%;border-top:1px solid #1b3340;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:20px max(30px,calc((100vw - 1420px)/2));font-size:11px;color:#6d8995}.footer strong{font-weight:600;color:#a3bbc2}.footer a{color:#81bfb5}.footer a:hover{color:var(--mint)}
.toast{position:fixed;right:25px;bottom:23px;z-index:99;transform:translateY(30px);opacity:0;pointer-events:none;background:#164337;color:#c7ffeb;border:1px solid #3f907a;padding:12px 18px;border-radius:8px;box-shadow:0 10px 32px #0005;transition:transform .2s,opacity .2s}.toast.visible{opacity:1;transform:translateY(0)}
@media(max-width:1150px){.workspace{grid-template-columns:minmax(320px,.9fr) minmax(450px,1.1fr)}.main{padding-left:22px;padding-right:22px}.stat{padding:13px 8px}.stat-label{font-size:8px}.tabs{padding-left:11px}.tab{padding-left:13px;padding-right:13px}.topbar,.footer{padding-left:22px;padding-right:22px}}
@media(max-width:920px){.workspace{grid-template-columns:minmax(0,1fr)}.code-wrap,.code-wrap textarea{min-height:300px}.intro-chip{display:none}.graph-viewport{min-height:330px}.tab-content{min-height:370px}.main{padding-top:33px}}
@media(max-width:580px){.topbar{height:70px;padding:0 16px}.brand-icon{width:35px;height:35px}.brand strong{font-size:13px;letter-spacing:.7px}.brand small{font-size:9px;letter-spacing:.5px}.topbar-right{gap:10px}.online-pill{font-size:0}.online-pill .pulse{width:8px;height:8px}.build-tag{display:none}.header-github{padding-left:9px}.header-github span{display:none}.main{padding:30px 12px}.intro{margin-bottom:24px;padding:0 5px}h1{font-size:32px;letter-spacing:-1.1px}.desktop-br{display:none}.intro p{font-size:13px}.eyebrow{font-size:9px;letter-spacing:1.2px}.panel-heading{padding:16px}.stats{gap:6px;padding:12px}.stat{padding:10px 8px}.stat-label{font-size:8px;min-height:31px}.stat strong{font-size:24px}.stat small{font-size:9px}.legend{gap:8px}.graph-toolbar{flex-wrap:wrap}.graph-viewport{margin:0 10px;min-height:300px;display:block;overflow-x:auto}.graph-content{width:760px;min-width:760px;min-height:300px}.mobile-graph-hint{display:block;color:#809fa9;text-align:center;font-size:10px;margin:8px 0 0}.graph-foot{margin:0 10px}.result-actions{padding:14px 12px}.hint{display:none}.explain{padding:18px 17px}.explain-grid{grid-template-columns:1fr;gap:17px}.footer{padding:18px 14px}.editor-actions{padding:10px}.btn-quiet{padding:8px;font-size:11px}.editor-foot{padding:10px 12px;font-size:9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}