:root{--bg:#f6f8fb;--card:#fff;--ink:#0f172a;--mute:#64748b;--line:#e2e8f0;--brand:#0f766e;--brand2:#115e59;--accent:#2563eb;--danger:#b91c1c;--radius:12px}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--card:#111a2e;--ink:#e6edf7;--mute:#94a3b8;--line:#22304a;--brand:#2dd4bf;--brand2:#5eead4;--accent:#60a5fa}}
*{box-sizing:border-box}body{margin:0;font:15px/1.55 Inter,"Segoe UI",system-ui,Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--accent)}header.top{display:flex;align-items:center;gap:20px;padding:12px 28px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
header.top .logo{font-weight:800;letter-spacing:.3px;color:var(--brand);text-decoration:none;font-size:18px}header.top nav{display:flex;gap:16px;flex:1}header.top nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:14px}
header.top nav a:hover{color:var(--brand)}#who{font-size:13px;color:var(--mute)}
main{max-width:1240px;margin:0 auto;padding:28px}.hero{text-align:center;padding:34px 10px 10px}.hero h1{font-size:34px;margin:0 0 6px}.hero p{color:var(--mute);max-width:720px;margin:0 auto 18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:18px}
textarea,input,select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:inherit}
textarea{min-height:120px;resize:vertical}button,.btn{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:10px 18px;font:600 14px inherit;font-family:inherit;cursor:pointer;text-decoration:none;display:inline-block}
button:hover,.btn:hover{background:var(--brand2)}button.secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}button.secondary:hover{background:var(--bg)}button:disabled{opacity:.55;cursor:wait}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}.chip{font-size:12.5px;padding:5px 11px;border:1px solid var(--line);border-radius:999px;background:var(--card);cursor:pointer;color:var(--mute)}.chip:hover{border-color:var(--brand);color:var(--brand)}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.grow{flex:1}.err{color:var(--danger);font-weight:600}.muted{color:var(--mute)}.small{font-size:13px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.tabs{display:flex;gap:4px;flex-wrap:wrap;border-bottom:1px solid var(--line);margin:0 0 16px}
.tab{padding:9px 14px;border:0;background:none;color:var(--mute);border-bottom:2px solid transparent;border-radius:0;font-weight:600;cursor:pointer}.tab.on{color:var(--brand);border-color:var(--brand)}
.panel{display:none}.panel.on{display:block}.diagram-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px;background:#fff;max-height:78vh}.diagram-wrap svg{display:block;min-width:900px}
.diagram-wrap svg [data-node]{transition:opacity .15s}.diagram-wrap svg.focus [data-node]:not(.hl),.diagram-wrap svg.focus [data-edge]:not(.hl){opacity:.14}
.diagram-wrap svg [data-node].sel rect:first-of-type{stroke-width:3}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.detail{border-left:4px solid var(--brand);padding:8px 14px;background:var(--bg);border-radius:6px;margin:12px 0;min-height:48px}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{color:var(--mute);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.badge{display:inline-block;font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--bg);border:1px solid var(--line);color:var(--mute)}
.warn{background:#fffbeb;border:1px solid #fde68a;color:#92400e;padding:10px 14px;border-radius:8px;margin:8px 0;font-size:13.5px}@media (prefers-color-scheme:dark){.warn{background:#3a2e0a;border-color:#7a5c10;color:#fde68a}}
ol.steps{padding-left:22px}ol.steps li{margin-bottom:12px}.two{display:grid;grid-template-columns:1fr 300px;gap:18px}@media(max-width:900px){.two{grid-template-columns:1fr}}
pre.json{background:#0b1220;color:#d6e2f5;padding:14px;border-radius:8px;overflow:auto;max-height:520px;font-size:12.5px}.hist a{display:block;padding:7px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);font-size:13.5px}.hist a:hover{color:var(--brand)}
.login{max-width:400px;margin:70px auto}.login label{display:block;margin:12px 0 4px;font-weight:600;font-size:13px}
@media print{header.top,.toolbar,.tabs,#scopeCard,.hist,button{display:none!important}.panel{display:block!important;page-break-inside:avoid}.diagram-wrap{max-height:none;overflow:visible}.card{border:0}body{background:#fff;color:#000}}