:root{--tre-black: #000000;--tre-green: #39ff14;--tre-green-rgb: 57, 255, 20;--tre-green-dark: #2ecc71;--tre-white: #ffffff;--tre-ink: #050505;--tre-panel: rgba(10, 10, 10, .72);--tre-panel-strong: rgba(15, 15, 15, .9);--tre-border: rgba(var(--tre-green-rgb), .18);--tre-border-strong: rgba(var(--tre-green-rgb), .5);--tre-muted: rgba(255, 255, 255, .68);--tre-faint: rgba(255, 255, 255, .44);--danger: #ff4d5d;--door: #ffb020;--viewer: #4aa3ff;color-scheme:dark;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--tre-black);color:var(--tre-white)}*,*:before,*:after{box-sizing:border-box}html{min-width:320px;min-height:100%;background:var(--tre-black);scrollbar-color:rgba(var(--tre-green-rgb),.34) rgba(0,0,0,.35);scrollbar-width:thin}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(ellipse at 50% 0%,rgba(var(--tre-green-rgb),.055),transparent 56%),linear-gradient(to bottom,var(--tre-black),#030403 60%,var(--tre-black));color:var(--tre-white);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-tap-highlight-color:transparent}button,input,textarea{font:inherit}button,.file-button{min-height:36px;border:1px solid var(--tre-border);border-radius:6px;background:#000000b3;color:var(--tre-white);cursor:pointer;padding:0 12px;transition:border-color .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease}button:hover,.file-button:hover{border-color:var(--tre-border-strong);background:#0c120ceb;box-shadow:0 0 14px rgba(var(--tre-green-rgb),.12);color:var(--tre-green)}button:focus-visible,.file-button:focus-within,input:focus-visible,textarea:focus-visible{outline:2px solid var(--tre-green);outline-offset:2px}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#00000059}::-webkit-scrollbar-thumb{border:1px solid rgba(var(--tre-green-rgb),.16);border-radius:999px;background:rgba(var(--tre-green-rgb),.28)}::-webkit-scrollbar-thumb:hover{background:rgba(var(--tre-green-rgb),.42)}.app-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 18px;border-bottom:1px solid var(--tre-border);background:#000000e6;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.brand{min-width:260px;display:inline-flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.brand-logo{width:42px;height:42px;flex:0 0 auto;filter:drop-shadow(0 0 6px rgba(var(--tre-green-rgb),.4)) drop-shadow(0 0 14px rgba(var(--tre-green-rgb),.12))}.brand-copy{min-width:0}.brand-copy span,.toolbar label,h2,.stats dt{font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}.brand-copy span{display:block;color:var(--tre-green);font-size:12px;font-weight:700;line-height:1.15;white-space:nowrap}h1,h2,p{margin:0}h1{color:var(--tre-white);font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:21px;font-weight:700;line-height:1.18}h2{color:var(--tre-green);font-size:12px;font-weight:700;line-height:1.2;text-transform:uppercase}#runtimeStatus{margin-top:4px;color:var(--tre-muted);font-size:13px}.toolbar{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.toolbar label{display:inline-flex;align-items:center;gap:7px;color:var(--tre-muted);font-size:12px}.file-button input{position:absolute;inline-size:1px;block-size:1px;clip:rect(0,0,0,0);overflow:hidden}input[type=number]{width:78px;min-height:36px;border:1px solid var(--tre-border);border-radius:6px;background:#000000c7;color:var(--tre-white);padding:0 8px}.workspace{min-height:0;display:grid;grid-template-columns:292px minmax(0,1fr)}.sidebar{min-height:0;overflow:auto;border-right:1px solid var(--tre-border);background:repeating-linear-gradient(45deg,rgba(var(--tre-green-rgb),.018) 0,rgba(var(--tre-green-rgb),.018) 1px,transparent 1px,transparent 12px),#000000d1;padding:14px}.panel{padding:14px 0;border-bottom:1px solid var(--tre-border)}.panel:first-child{padding-top:0}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}.tool-button{font-weight:600}.tool-button.active{border-color:var(--tre-green);background:rgba(var(--tre-green-rgb),.12);box-shadow:0 0 16px rgba(var(--tre-green-rgb),.18),inset 0 0 10px rgba(var(--tre-green-rgb),.08);color:var(--tre-green)}.tile-list{display:grid;gap:8px;margin-top:10px}.tile-item{display:grid;grid-template-columns:54px minmax(0,1fr);align-items:center;gap:9px;min-height:52px;border:1px solid var(--tre-border);border-radius:6px;background:var(--tre-panel);padding:6px}.tile-item img{width:54px;height:40px;object-fit:cover;border-radius:4px;border:1px solid rgba(var(--tre-green-rgb),.16)}.tile-item span{min-width:0;color:var(--tre-white);font-size:12px;overflow-wrap:anywhere}.door-list{display:grid;gap:8px;margin-top:10px}.empty-state{margin:0;color:var(--tre-faint);font-size:12px}.door-item{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:8px;min-height:38px;border:1px solid var(--tre-border);border-radius:6px;background:var(--tre-panel);padding:6px}.door-name{min-width:0;color:var(--tre-white);font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.door-state{min-width:56px;border:1px solid currentcolor;border-radius:999px;padding:2px 7px;font-family:JetBrains Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:10px;font-weight:700;line-height:1.2;text-align:center}.door-item-open .door-state{color:var(--tre-green)}.door-item-closed .door-state{color:var(--door)}.door-toggle{min-height:28px;padding:0 9px;font-size:12px}.stats{margin:10px 0 0;display:grid;gap:8px}.stats div{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.stats dt{color:var(--tre-faint);font-size:12px}.stats dd{margin:0;color:var(--tre-white);font-size:13px}.board-panel{min-width:0;min-height:0;display:grid;grid-template-rows:minmax(0,1fr) 180px;gap:12px;padding:14px;background:radial-gradient(ellipse at 50% 0%,rgba(var(--tre-green-rgb),.04),transparent 48%),var(--tre-black)}.board-panel:before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background:linear-gradient(to bottom,transparent 50%,rgba(var(--tre-green-rgb),.035) 50%,transparent 54%),repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(var(--tre-green-rgb),.035) 2px,rgba(var(--tre-green-rgb),.035) 3px);background-size:100% 100%,100% 5px;opacity:.45}#boardCanvas,#exportOutput{position:relative;z-index:1}#boardCanvas{width:100%;height:100%;min-height:360px;border:1px solid var(--tre-border-strong);border-radius:8px;background:#000;box-shadow:0 0 24px rgba(var(--tre-green-rgb),.12),inset 0 0 18px rgba(var(--tre-green-rgb),.055);image-rendering:auto;object-fit:contain}#exportOutput{width:100%;min-height:0;resize:none;border:1px solid var(--tre-border);border-radius:8px;background:var(--tre-panel-strong);box-shadow:inset 0 0 14px rgba(var(--tre-green-rgb),.035);color:#ffffffdb;padding:10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:12px;line-height:1.45}#exportOutput::placeholder{color:var(--tre-faint)}@media(max-width:980px){.topbar{align-items:stretch;flex-direction:column}.brand{min-width:0}.toolbar{justify-content:flex-start}}@media(max-width:860px){.workspace{grid-template-columns:1fr}.sidebar{max-height:280px;border-right:0;border-bottom:1px solid var(--tre-border)}}@media(max-width:560px){.topbar{padding:12px}.brand-logo{width:34px;height:34px}.brand-copy span{font-size:11px}h1{font-size:18px}.toolbar{display:grid;grid-template-columns:1fr 1fr}.toolbar label,.toolbar button,.file-button{width:100%;justify-content:center}input[type=number]{width:64px}.board-panel{padding:10px}}