:root{--bg:#0f172a;--panel:#ffffff;--ink:#1f2937;--muted:#6b7280;--accent:#4f46e5;--ok:#059669;--warn:#d97706;--bad:#dc2626;--line:#e5e7eb}
*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:-apple-system,"Hiragino Sans","Yu Gothic UI",Meiryo,sans-serif;color:var(--ink);background:#f3f4f6}
.bar{display:flex;align-items:center;gap:24px;height:56px;padding:0 16px;background:var(--bg);color:#fff}
.brand{font-weight:700;font-size:16px}.brand span{font-weight:400;opacity:.8;margin-left:6px}
.steps{display:flex;gap:18px;list-style:none;margin:0;padding:0;font-size:13px}
.steps li{opacity:.55;display:flex;align-items:center;gap:6px}.steps li b{display:inline-flex;width:20px;height:20px;border-radius:50%;background:#334155;align-items:center;justify-content:center;font-size:12px}
.steps li.current{opacity:1}.steps li.current b{background:var(--accent)}.steps li.done{opacity:.9}.steps li.done b{background:var(--ok)}
.status{margin-left:auto;font-size:13px;display:flex;gap:8px;align-items:center}.dot{width:9px;height:9px;border-radius:50%;background:#94a3b8}
.status.ok .dot{background:#34d399}.status.warn .dot{background:#fbbf24}.status.bad .dot{background:#f87171}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;height:calc(100% - 56px)}
.guide-hidden .layout{grid-template-columns:minmax(0,1fr)}.guide-hidden .guide{display:none}
.guide-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
#guide-toggle{color:#fff;background:transparent;border-color:#64748b;white-space:nowrap}
.screen{position:relative;background:#000;overflow:hidden}
#display{width:100%;height:100%;outline:none;cursor:default;isolation:isolate}#display>div{margin:0 auto}
.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(15,23,42,.72)}
.overlay.hidden{display:none}
.card{background:#fff;border-radius:12px;padding:24px 28px;max-width:460px;box-shadow:0 10px 40px rgba(0,0,0,.35)}
.card h2{margin:0 0 8px;font-size:18px}.card p{margin:6px 0;line-height:1.6;font-size:14px}.card .elapsed{color:var(--muted);font-size:13px}
.actions{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}
.guide{overflow:auto;background:var(--panel);border-left:1px solid var(--line);padding:12px 14px;font-size:13px;line-height:1.6}
.panel{padding:10px 0 12px;border-bottom:1px solid var(--line)}.panel h3{margin:0 0 6px;font-size:14px}
.panel.dim{opacity:.55}.panel.current{background:#eef2ff;margin:0 -14px;padding:10px 14px;border-left:3px solid var(--accent)}
.tips{margin:4px 0;padding-left:18px}.tips li{margin:3px 0}
.field{display:block;margin-top:8px}.row{display:flex;gap:8px;align-items:center;margin:6px 0;flex-wrap:wrap}
input,textarea{font:inherit;padding:8px 10px;border:1px solid #cbd5e1;border-radius:8px;width:100%}#code{font-size:20px;letter-spacing:4px;max-width:180px;font-variant-numeric:tabular-nums}
textarea{resize:vertical}
button{font:inherit;font-size:13px;padding:8px 12px;border-radius:8px;border:1px solid #cbd5e1;background:#fff;cursor:pointer}
button.primary{background:var(--accent);color:#fff;border-color:var(--accent)}button:disabled{opacity:.5;cursor:default}
small,.hint{color:var(--muted);font-size:12px;display:block;margin-top:4px}
@media (max-width:1100px){.steps{display:none}.bar{gap:12px}}
@media (max-width:900px){.layout{grid-template-columns:minmax(0,1fr)}.guide{position:fixed;top:56px;right:0;bottom:0;width:min(360px,100%);z-index:10;box-shadow:-8px 0 24px #0003}.status-elapsed{display:none}}
@media (max-width:540px){.brand span,#status-elapsed{display:none}.bar{padding:0 10px;gap:8px}.status{font-size:12px}.card{margin:12px;padding:20px;max-width:calc(100% - 24px)}}

/* Quiet, compact browser chrome; the remote workspace stays the focus. */
:root{--bg:#f5f5f7;--ink:#1d1d1f;--muted:#6e6e73;--accent:#635bcb;--line:#e5e5e9}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans",Meiryo,sans-serif;-webkit-font-smoothing:antialiased}
.bar{gap:28px;padding:0 24px;background:rgba(250,250,252,.97);color:var(--ink);border-bottom:1px solid #00000014}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:16px;font-weight:650;letter-spacing:-.45px}
.brand span{margin:0;padding:3px 7px;border:1px solid #0000000c;border-radius:5px;font-size:10px;letter-spacing:.02em;color:var(--muted);background:#fff;opacity:1}
.steps{gap:24px;font-size:12px}.steps li{opacity:1;color:#86868b;gap:7px;white-space:nowrap}
.steps li b{height:18px;width:18px;background:#eaeaee;color:#86868b;font-size:10px;font-weight:600}
.steps li.current{color:var(--ink);font-weight:550}.steps li.current b{background:#edeafa;color:#6256b4}
.steps li.done{color:#6e6e73;opacity:1}.steps li.done b{background:#edf3ee;color:#3a7851}
.status{gap:6px;font-size:12px;color:#6e6e73;white-space:nowrap;font-variant-numeric:tabular-nums}.dot{width:6px;height:6px}.status.ok .dot{background:#38a169}
#status-elapsed{font-size:11px;color:#86868b}
#guide-toggle{display:inline-flex;align-items:center;gap:7px;min-height:32px;padding:6px 10px;color:#424247;border:1px solid #00000012;border-radius:7px;background:#fff;box-shadow:0 1px 2px #00000004;font-size:12px}
#guide-toggle[aria-expanded="true"]{background:#eaeaf0;border-color:transparent;color:#3f3f46}
button{transition:background .15s,border-color .15s;border-radius:7px}button:hover:not(:disabled){background:#f0f0f4}button.primary:hover:not(:disabled){background:#554ab7}
button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #7770dc60;outline-offset:2px}
.guide{background:#fafafc;padding:18px 20px;border-left:1px solid #00000010}
.guide-heading{position:sticky;top:-18px;z-index:1;padding:12px 0;margin-top:-12px;background:#fafafcf5;backdrop-filter:blur(12px)}
.guide-heading strong{font-size:13px;font-weight:600;letter-spacing:.02em}
#guide-close{display:grid;place-items:center;width:28px;height:28px;padding:0;font-size:21px;line-height:1;color:#6e6e73;background:#eeeef2;border:0;border-radius:50%}
.panel{padding:16px 0}.panel h3{font-size:13px;font-weight:600}.panel.current{background:transparent;margin:0;padding:16px 0;border-left:0}.panel.dim{opacity:1}
.tips{font-size:12px;line-height:1.8}.tips li{margin:6px 0}.hint,small{line-height:1.7}textarea,input{background:#fff}
@media(max-width:1100px){.bar{gap:16px;padding:0 18px}}
@media(max-width:540px){.bar{padding:0 12px;gap:10px}.brand{font-size:15px}.brand span,#status-elapsed{display:none}.status{font-size:11px}#guide-toggle{padding:6px 8px;font-size:11px}.guide{padding:18px}}
@media(prefers-reduced-motion:reduce){button{transition:none}}