:root{--bg:#f1f5f9;--card:#fff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--accent:#0f172a;--ok:#166534;--warn:#92400e;--bad:#991b1b}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.shell{max-width:1100px;margin:auto;min-height:100vh}.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:#f1f5f9ee;border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.brand{font-weight:900}.brand small{display:block;color:var(--muted);font-weight:600}.content{padding:16px 16px 96px}.nav{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:min(1100px,100%);display:grid;grid-template-columns:repeat(8,1fr);background:#fff;border-top:1px solid var(--line);padding:8px 4px calc(8px + env(safe-area-inset-bottom));z-index:20}.nav button{border:0;background:transparent;color:var(--muted);font-weight:700;padding:10px 2px}.nav button.on{color:var(--ink)}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;margin-bottom:12px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.row{display:flex;gap:10px;align-items:center}.between{justify-content:space-between}.muted{color:var(--muted)}h1,h2,h3{margin-top:0}.btn{border:0;border-radius:12px;padding:11px 14px;font-weight:800;background:var(--accent);color:#fff}.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}.btn.bad{background:#fee2e2;color:var(--bad)}input,textarea,select{width:100%;padding:11px;border:1px solid var(--line);border-radius:10px;background:#fff;font:inherit}label{font-size:13px;color:var(--muted)}.field{display:grid;gap:5px;margin-bottom:10px}.badge{display:inline-block;border-radius:999px;padding:4px 8px;background:#e2e8f0;font-size:12px;font-weight:800}.badge.ok{background:#dcfce7;color:var(--ok)}.badge.warn{background:#fef3c7;color:var(--warn)}.alert{padding:12px;border-radius:12px;margin:8px 0}.alert.warn{background:#fef3c7;color:var(--warn)}.alert.bad{background:#fee2e2;color:var(--bad)}.product img{width:100%;aspect-ratio:16/9;object-fit:contain;background:#f8fafc;border-radius:12px}.kpi{font-size:28px;font-weight:900}.dose{display:grid;grid-template-columns:1fr auto;gap:10px}.login{max-width:460px;margin:8vh auto;padding:16px}.tabs{display:flex;gap:8px;margin-bottom:12px}.tabs button{flex:1}.hidden{display:none!important}#toast{position:fixed;left:50%;bottom:85px;transform:translateX(-50%);background:#0f172a;color:white;padding:10px 14px;border-radius:10px;opacity:0;transition:.2s;z-index:30}#toast.show{opacity:1}canvas{width:100%;max-height:260px}@media(max-width:760px){.grid,.grid2{grid-template-columns:1fr}.nav{grid-template-columns:repeat(8,1fr)}.nav button{font-size:11px}.top .useremail{display:none}}

.view-enter{animation:fadein .14s ease-out}@keyframes fadein{from{opacity:.65;transform:translateY(2px)}to{opacity:1;transform:none}}
.skeleton{height:76px;border-radius:14px;background:linear-gradient(90deg,#e2e8f0 25%,#f8fafc 37%,#e2e8f0 63%);background-size:400% 100%;animation:shimmer 1.2s infinite}@keyframes shimmer{0%{background-position:100% 0}100%{background-position:0 0}}
.filebox{border:1px dashed var(--line);padding:12px;border-radius:12px}.audit{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;overflow-wrap:anywhere}

.structure-summary{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.branch-card{padding:16px;border-radius:16px;border:1px solid var(--line);background:#fff}
.tree-wrap{overflow:auto;padding:8px 0}
.tree{display:flex;justify-content:center;min-width:760px}
.tree ul{padding-top:20px;position:relative;display:flex;justify-content:center;padding-left:0}
.tree li{list-style:none;text-align:center;position:relative;padding:20px 8px 0}
.tree li::before,.tree li::after{content:'';position:absolute;top:0;width:50%;height:20px;border-top:1px solid #94a3b8}
.tree li::before{right:50%}.tree li::after{left:50%;border-left:1px solid #94a3b8}
.tree li:only-child::before,.tree li:only-child::after{display:none}.tree li:only-child{padding-top:0}
.tree li:first-child::before,.tree li:last-child::after{border:0}
.tree li:last-child::before{border-right:1px solid #94a3b8;border-radius:0 6px 0 0}
.tree li:first-child::after{border-radius:6px 0 0 0}
.tree ul ul::before{content:'';position:absolute;top:0;left:50%;height:20px;border-left:1px solid #94a3b8}
.node{display:inline-block;min-width:150px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff}
.node.me{border:2px solid var(--accent)}
.node small{display:block;color:var(--muted)}
.sponsor-check{min-height:20px;font-size:13px}
@media(max-width:760px){.structure-summary{grid-template-columns:1fr}}
.demo-banner{margin:12px 16px 0;padding:12px 14px;border-radius:14px;background:#e0f2fe;color:#075985;border:1px solid #bae6fd;display:flex;align-items:center;gap:10px;flex-wrap:wrap}.demo-reset{margin-left:auto;padding:7px 10px}.demo-btn{width:100%;background:#0f172a;color:#fff;border-color:#0f172a}.small{font-size:12px}@media(max-width:600px){.demo-reset{margin-left:0;width:100%}}

.ai-chat{display:grid;gap:10px;max-height:460px;overflow:auto;padding:6px 0 12px}
.ai-msg{max-width:88%;padding:12px;border-radius:14px;white-space:pre-wrap;line-height:1.45}
.ai-msg.user{margin-left:auto;background:#0f172a;color:#fff}
.ai-msg.bot{margin-right:auto;background:#e2e8f0;color:#0f172a}
.ai-compose{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:end}
.ai-compose textarea{min-height:70px}
code{background:#e2e8f0;padding:3px 6px;border-radius:6px}
@media(max-width:760px){.nav{overflow-x:auto;display:flex}.nav button{min-width:76px;flex:0 0 auto}.ai-compose{grid-template-columns:1fr}}

/* DragonRa GTC V4.0.1 hotfix */
.login::before{content:"";position:fixed;inset:0;z-index:-1;background:
radial-gradient(circle at 50% 12%,rgba(202,160,65,.15),transparent 30%),
linear-gradient(180deg,#0b1223 0 33%,#eef2f7 33% 100%)}
.login .card{box-shadow:0 20px 70px rgba(15,23,42,.16);border-color:rgba(202,160,65,.28)}
.login h1{letter-spacing:-.035em}
.login h1::after{content:"";display:block;width:54px;height:3px;margin-top:10px;border-radius:3px;background:linear-gradient(90deg,#c8a34d,#f2d888)}
.brand{letter-spacing:-.02em}
.brand small{letter-spacing:.04em;text-transform:uppercase;font-size:11px}
.generation-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line)}
.generation-row:last-child{border-bottom:0}
.kpi-small{font-weight:900;font-size:18px}