:root {
  --bg: #050b1a; --bg2: #0a1530; --panel: #0d1a3a; --line: #1b2c57; --text: #e8f0ff; --muted: #9db0d6; --dim: #6f82aa;
  --neon: #00b3ff; --neon2: #3d7bff; --ok: #2ee6a6; --warn: #ffc24d; --bad: #ff5c7a;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body { font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 50% -200px, #0f2a66 0%, var(--bg) 60%); min-height: 100vh; }
.top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 16px 24px; border-bottom: 1px solid var(--line); background: rgba(5, 11, 26, .8); }
.brand { font-weight: 800; font-size: 22px; letter-spacing: .2px; }
.brand-x { color: var(--neon); text-shadow: 0 0 12px rgba(0, 179, 255, .8); }
.brand-sg { color: var(--muted); font-weight: 600; margin-left: 6px; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 700; letter-spacing: .6px; }
.badge-test { color: #05101f; background: var(--warn); }
main { max-width: 860px; margin: 0 auto; padding: 24px 16px 8px; }
h1 { margin: 0 0 6px; font-size: 24px; }
h2 { margin: 0 0 12px; font-size: 19px; color: var(--neon); }
h3 { margin: 6px 0; font-size: 16px; }
.banner { border-radius: 12px; padding: 14px 18px; margin: 0 0 12px; border: 1px solid var(--line); background: var(--bg2); }
.banner p { margin: 4px 0; }
.banner-test { border-color: var(--warn); }
.banner-seed { border-color: var(--bad); background: #1c0d1f; }
.banner-local { border-color: var(--neon2); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px; margin: 16px 0;
  box-shadow: 0 0 24px rgba(0, 179, 255, .06); }
label { display: block; margin: 10px 0; color: var(--muted); font-size: 14px; }
.row { display: flex; gap: 12px; flex-wrap: wrap; }
.row label { flex: 1 1 180px; }
input, select, textarea { display: block; width: 100%; margin-top: 4px; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: #071130; color: var(--text); font: 14px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--neon); outline-offset: 1px; }
details { margin: 8px 0; } summary { cursor: pointer; color: var(--neon); }
button { margin-top: 8px; padding: 10px 20px; border: 0; border-radius: 10px; cursor: pointer; font-weight: 700; font-size: 15px;
  color: #02101f; background: linear-gradient(90deg, var(--neon), var(--neon2)); box-shadow: 0 0 16px rgba(0, 179, 255, .45); }
button:hover { filter: brightness(1.1); }
.result { margin-top: 14px; border-top: 1px dashed var(--line); padding-top: 12px; }
.verdict { font-weight: 700; font-size: 17px; margin: 4px 0 10px; }
.verdict-ok { color: var(--ok); } .verdict-warn { color: var(--warn); } .verdict-block { color: var(--bad); }
.warn { border-left: 4px solid var(--line); background: #0a1532; border-radius: 8px; padding: 10px 14px; margin: 10px 0; }
.warn p { margin: 4px 0; }
.sev-high { border-left-color: var(--bad); } .sev-medium { border-left-color: var(--warn); } .sev-info { border-left-color: var(--neon); }
.warn-head { display: flex; gap: 8px; align-items: center; }
.sev-badge-high { background: var(--bad); color: #1a0008; } .sev-badge-medium { background: var(--warn); color: #1a1000; }
.sev-badge-info { background: var(--neon); color: #001a26; }
.code { font: 12px ui-monospace, Menlo, Consolas, monospace; color: var(--dim); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; word-break: break-all; }
.small { font-size: 13px; } .dim { color: var(--dim); } .k { color: var(--muted); }
.status { color: var(--muted); } .status-ok { color: var(--ok); } .status-bad { color: var(--bad); font-weight: 700; }
.notice { border: 1px solid var(--bad); background: #2a0c18; color: #ffd6df; border-radius: 10px; padding: 10px 14px; font-weight: 600; }
footer { max-width: 860px; margin: 0 auto; padding: 16px; color: var(--dim); font-size: 13px; border-top: 1px solid var(--line); }
footer p { margin: 4px 0; }