:root{color-scheme:dark;--phosphor:#a5ee9a;--bright:#c8ffb9;--muted:#70aa72;--dim:#334e35;--screen:#06120b;--border:#294a31;font-family:"Courier New",ui-monospace,"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",monospace;line-height:1.6}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;min-height:100svh;display:flex;align-items:center;justify-content:center;padding:40px 24px;background:radial-gradient(ellipse at 50% 48%,#14251a 0,#09110c 46%,#050807 100%);color:var(--phosphor)}a{color:inherit}button{font:inherit;color:inherit;cursor:pointer}a,button{touch-action:manipulation}:focus-visible{outline:2px solid var(--bright);outline-offset:5px}.skip-link{position:absolute;top:8px;left:8px;transform:translateY(-200%);background:#09190e;padding:10px 16px;z-index:5}.skip-link:focus{transform:none}.cabinet{width:min(100%,1000px);padding:20px 26px 0;background:linear-gradient(145deg,#29302b,#171e19 45%,#202822);border:2px solid #364139;border-radius:28px;box-shadow:0 34px 100px #0009,inset 0 2px 0 #5a625b66,inset 0 -5px 0 #070b0877}.cabinet-top{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:0 6px 16px;color:#92a293;font-size:11px;letter-spacing:3px;font-weight:bold}.serial{font-size:9px;letter-spacing:2px;color:#748276}.screen-bezel{padding:13px;border-radius:22px;background:#080d09;box-shadow:inset 0 3px 8px #000,inset 0 -1px 0 #4f5850}.screen{position:relative;overflow:hidden;padding:22px 30px 18px;border-radius:12px;background:radial-gradient(ellipse at 50% 38%,#0e2313,var(--screen) 75%);border:1px solid #35553c;box-shadow:inset 0 0 60px #0008,0 0 28px #81ff7910;text-shadow:0 0 12px #81f37922}.screen::after{content:"";position:absolute;inset:0;z-index:2;pointer-events:none;background:repeating-linear-gradient(to bottom,transparent 0,transparent 3px,#0002 3px,#0002 4px);opacity:.55}.terminal-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding-bottom:15px;border-bottom:1px solid var(--border);font-size:11px;letter-spacing:2px}.terminal-bar>span{display:inline-flex;align-items:center;gap:9px}.signal{display:inline-block;width:6px;height:6px;background:var(--phosphor);box-shadow:0 0 10px #99ff7177}.terminal-bar button{border:0;background:transparent;min-height:44px;padding:4px 8px;font-size:11px;letter-spacing:0;color:var(--muted)}.terminal-bar button:disabled{cursor:default}.intro{padding:24px 0 14px}.eyebrow{margin:0 0 14px;font-size:9px;letter-spacing:2px;color:var(--muted)}h1{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,sans-serif;font-size:clamp(25px,4.2vw,38px);font-weight:600;letter-spacing:5px;margin:0;color:var(--bright);line-height:1.4}.cursor{font-family:monospace;animation:cursor-breathe 4s ease-in-out infinite;letter-spacing:0;margin-left:10px;font-weight:400}.intro-copy{font-family:"Hiragino Kaku Gothic ProN",system-ui,sans-serif;color:#8bbc87;font-size:13px;line-height:1.9;margin:16px 0 0}.room-art{position:relative;border-block:1px solid var(--border);margin:6px 0 22px;background:#040d07;padding:9px 14px 18px}.room-art canvas{display:block;width:100%;height:auto;image-rendering:pixelated;aspect-ratio:10/3}.art-caption{position:absolute;bottom:7px;left:14px;font-size:8px;letter-spacing:2px;color:#69986b}.tools{display:grid;grid-template-columns:1fr 1fr;gap:18px}.tool-card{display:block;min-width:0;text-decoration:none;border:1px solid #3b6541;background:#0b1a0f;transition:background .18s,border-color .18s,box-shadow .18s}.tool-card:hover,.tool-card:focus-visible{background:#102818;border-color:var(--phosphor);box-shadow:0 0 18px #84fb7020}.tool-art{position:relative;overflow:hidden;border-bottom:1px solid var(--border);background:#06100a}.tool-art canvas{display:block;width:100%;height:auto;image-rendering:pixelated;aspect-ratio:16/9}.slot{position:absolute;top:10px;left:12px;color:#8db888;background:#05110ad9;padding:2px 5px;font-size:8px;letter-spacing:1px}.tool-body{padding:17px 20px 18px}.tool-code{font-size:9px;letter-spacing:2px;color:var(--muted);margin:0 0 6px}h2{margin:0;font-family:"Hiragino Kaku Gothic ProN",system-ui,sans-serif;font-size:21px;font-weight:600;letter-spacing:1px;color:var(--bright)}.tool-body>p:not(.tool-code){font-family:"Hiragino Kaku Gothic ProN",system-ui,sans-serif;font-size:12px;line-height:1.9;color:#86b782;margin:12px 0 17px}.open{display:flex;align-items:center;justify-content:space-between;gap:12px;font-family:"Hiragino Kaku Gothic ProN",system-ui,sans-serif;font-size:12px;color:var(--bright);border-top:1px solid var(--border);padding-top:13px}.terminal-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:24px;padding-top:14px;border-top:1px solid var(--border);font-size:9px;letter-spacing:1px;color:var(--muted)}.terminal-footer>span{display:flex;align-items:center;gap:7px}.terminal-footer a{display:inline-flex;align-items:center;gap:8px;min-height:44px;text-decoration:none;font-size:11px;letter-spacing:0}.terminal-footer a:hover{color:var(--bright)}.status-square{width:4px;height:4px;background:#7caf79}.cabinet-bottom{display:flex;align-items:center;gap:24px;padding:18px 6px 20px;font-size:8px;letter-spacing:2px;color:#8a9d8b}.power{display:flex;align-items:center;gap:9px}.power i{width:5px;height:5px;border-radius:50%;background:#9aff77;box-shadow:0 0 8px #9aff7755}.vents{height:8px;width:98px;background:repeating-linear-gradient(90deg,#080e09 0,#080e09 3px,transparent 3px,transparent 7px);opacity:.8}.maker{margin-left:auto;font-size:8px;letter-spacing:1px}.noscript-note{font-size:12px;margin:18px;color:var(--muted)}body.still .cursor{animation:none}@keyframes cursor-breathe{0%,100%{opacity:.45}50%{opacity:1}}
@media(max-width:640px){body{padding:16px 10px max(16px,env(safe-area-inset-bottom));align-items:flex-start}.cabinet{padding:15px 12px 0;border-radius:20px}.cabinet-top{font-size:9px;letter-spacing:2px;padding-bottom:12px}.serial{font-size:8px;letter-spacing:1px}.screen-bezel{padding:7px;border-radius:14px}.screen{padding:14px 16px 10px;border-radius:9px}.terminal-bar{font-size:9px;letter-spacing:1px;padding-bottom:8px}.intro{padding-top:19px}.eyebrow{font-size:8px;letter-spacing:1px;max-width:260px}.room-art{padding-inline:6px;margin-bottom:16px}.art-caption{font-size:7px;letter-spacing:1px;left:7px}.tools{gap:12px;grid-template-columns:1fr}.tool-card{display:grid;grid-template-columns:108px minmax(0,1fr)}.tool-art{border-bottom:0;border-right:1px solid var(--border);display:flex;align-items:center}.tool-art canvas{width:100%;height:auto;object-fit:contain;image-rendering:pixelated}.slot{top:7px;left:5px;font-size:7px;letter-spacing:0}.tool-body{padding:12px 14px}.tool-code{font-size:8px;letter-spacing:1px}h2{font-size:18px}.tool-body>p:not(.tool-code){font-size:11px;margin:8px 0 12px;line-height:1.7}.open{font-size:11px;padding-top:10px}.terminal-footer{margin-top:17px;font-size:7px;letter-spacing:.5px}.terminal-footer a{font-size:10px}.cabinet-bottom{gap:12px;padding:15px 4px;font-size:7px;letter-spacing:1px}.vents{width:60px}.maker{font-size:6px;letter-spacing:.5px}}
@media(max-width:350px){.tool-card{grid-template-columns:82px minmax(0,1fr)}.screen{padding-inline:12px}.tool-body{padding-inline:11px}.maker{display:none}.terminal-bar>span{gap:5px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* A deliberately understated third artifact, separate from the two tools. */
.cha-artifact{margin-top:22px;padding:15px 19px;border:1px dashed #365a3b;background:#07140b}
.cha-artifact-label{margin:0 0 8px;color:var(--muted);letter-spacing:2px;font-size:9px}
.cha-artifact-row{display:flex;align-items:center;justify-content:space-between;gap:22px}
.cha-artifact h2{font-family:"Courier New",ui-monospace,monospace;font-weight:600;font-size:17px;letter-spacing:1px}
.cha-artifact h2 span{font-size:12px;color:var(--phosphor);font-weight:400;white-space:nowrap}
.cha-artifact-row p{font-size:11px;color:#91bd8d;margin:6px 0 0;line-height:1.65}
.cha-artifact .cha-artifact-notice{font-size:9px;color:var(--muted)}
.cha-artifact-download{display:inline-flex;align-items:center;gap:8px;justify-content:space-between;min-height:44px;flex-shrink:0;padding:8px 12px;border:1px solid #46734b;text-decoration:none;font-size:11px;white-space:nowrap}
.cha-artifact-download:hover{color:var(--bright);border-color:var(--phosphor);background:#142d19}
@media(max-width:640px){.cha-artifact{padding:13px 14px;margin-top:16px}.cha-artifact-row{align-items:flex-start;flex-direction:column;gap:10px}.cha-artifact h2{font-size:15px}.cha-artifact h2 span{font-size:11px}.cha-artifact-download{align-self:flex-start}}