:root {
  --bg: #f8f9fc;
  --panel: #ffffff;
  --text: #1f2330;
  --muted: #5d6475;
  --border: #dfe2ec;
  --accent: #5b4fd6;
  --accent-ink: #ffffff;
  --ok: #1a7f37;
  --ok-bg: #e7f5ea;
  --retrieval: #1f5fbf;
  --retrieval-bg: #e6effc;
  --generation: #9a4a00;
  --generation-bg: #fdefe0;
  --bloat: #7a5b00;
  --bloat-bg: #fbf3d5;
  --unsafe: #b42318;
  --unsafe-bg: #fde8e6;
  --null: #6e7781;
  --null-bg: #eef0f3;
  --code-bg: #f1f2f7;
  --radius: 10px;
  --hl-instruction_override: #f7c2bf;
  --hl-role_hijack: #f9d3c1;
  --hl-prompt_extraction: #f5c6dc;
  --hl-exfiltration: #f9cdb2;
  --hl-encoded_payload: #d6d1f7;
  --hl-hidden_text: #c9c3ef;
  --hl-sensitive: #f7e1a6;
  --hl-error: #f3b3ad;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #13141a;
    --panel: #1b1d25;
    --text: #e6e7ec;
    --muted: #9aa0ae;
    --border: #2c2f3a;
    --accent: #9d93ff;
    --accent-ink: #13141a;
    --ok: #5fd07a;
    --ok-bg: #15301e;
    --retrieval: #8fb6f5;
    --retrieval-bg: #172540;
    --generation: #f3a867;
    --generation-bg: #3a2412;
    --bloat: #e8c65a;
    --bloat-bg: #332a0d;
    --unsafe: #ff8a80;
    --unsafe-bg: #3a1614;
    --null: #a6adb8;
    --null-bg: #262a33;
    --code-bg: #232632;
    --hl-instruction_override: #6b2521;
    --hl-role_hijack: #6a3522;
    --hl-prompt_extraction: #62273f;
    --hl-exfiltration: #6b3a1c;
    --hl-encoded_payload: #3b3470;
    --hl-hidden_text: #332c66;
    --hl-sensitive: #5a4712;
    --hl-error: #6b2521;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Hiragino Sans", "Noto Sans JP", Arial, sans-serif;
}

a { color: var(--retrieval); }
code, textarea, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
code { background: var(--code-bg); padding: 0 4px; border-radius: 4px; font-size: 0.92em; word-break: break-word; }

.top {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding: 18px 24px 8px; max-width: 1280px; margin: 0 auto;
}
.brand { display: flex; gap: 12px; align-items: center; }
.logo { font-size: 34px; }
h1 { margin: 0; font-size: 26px; letter-spacing: -0.01em; }
.tagline { margin: 0; color: var(--muted); }

.engine {
  display: inline-flex; gap: 8px; align-items: center; font-size: 13px;
  border: 1px solid var(--border); border-radius: 999px; padding: 5px 12px; background: var(--panel);
}
.engine .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--bloat); }
.engine.ready .dot { background: var(--ok); }
.engine.failed .dot { background: var(--unsafe); }
.engine.loading .dot { animation: pulse 1.2s infinite ease-in-out; }
@keyframes pulse { 50% { opacity: 0.3; } }

.tabs {
  display: flex; gap: 4px; max-width: 1280px; margin: 8px auto 0; padding: 0 24px;
  border-bottom: 1px solid var(--border); overflow-x: auto;
}
.tab {
  border: none; background: none; color: var(--muted); font: inherit; font-weight: 600;
  padding: 10px 14px; cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.tab:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

main { max-width: 1280px; margin: 0 auto; padding: 16px 24px 32px; }
.panel[hidden] { display: none; }
.lead { color: var(--muted); margin: 4px 0 16px; max-width: 920px; }

.grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 20px; align-items: start; }
@media (max-width: 900px) { .grid { grid-template-columns: 1fr; } main, .top, .tabs { padding-left: 16px; padding-right: 16px; } }

.inputs, .results { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.results { min-height: 240px; overflow-wrap: anywhere; }
.placeholder { color: var(--muted); padding: 24px 4px; }

.field { display: flex; flex-direction: column; gap: 4px; margin: 8px 0; font-size: 13px; font-weight: 600; color: var(--muted); }
.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row .field { flex: 1 1 160px; }
.hint { font-weight: 400; }

input[type="text"], input[type="number"], select, textarea {
  width: 100%; font-size: 13px; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 9px;
}
textarea { resize: vertical; line-height: 1.45; }
select { font-family: inherit; }

button.primary {
  margin-top: 10px; width: 100%; padding: 11px 14px; border: none; border-radius: 8px; cursor: pointer;
  background: var(--accent); color: var(--accent-ink); font: inherit; font-weight: 700;
}
button.primary:disabled { opacity: 0.45; cursor: not-allowed; }

.verdict {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  border-radius: var(--radius); padding: 14px 16px; margin-bottom: 14px; font-weight: 700;
}
.verdict .big { font-size: 22px; letter-spacing: 0.02em; }
.verdict .sub { font-weight: 500; font-size: 13px; }
.v-ok { background: var(--ok-bg); color: var(--ok); }
.v-retrieval { background: var(--retrieval-bg); color: var(--retrieval); }
.v-generation { background: var(--generation-bg); color: var(--generation); }
.v-bloat { background: var(--bloat-bg); color: var(--bloat); }
.v-unsafe, .v-error { background: var(--unsafe-bg); color: var(--unsafe); }

h3 { font-size: 13px; margin: 18px 0 8px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
ul.reasons { list-style: none; padding: 0; margin: 6px 0 0; }
ul.reasons li { padding: 6px 0; border-bottom: 1px dashed var(--border); font-size: 13.5px; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { border: 1px solid var(--border); padding: 6px 8px; text-align: left; vertical-align: top; }
th { background: var(--code-bg); font-weight: 600; white-space: nowrap; }
td.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
td:first-child code, td:nth-child(2) code { white-space: nowrap; word-break: normal; }

.flag { display: inline-block; font-weight: 700; font-size: 12px; border-radius: 999px; padding: 1px 9px; white-space: nowrap; }
.f-yes, .f-error, .st-bad { background: var(--unsafe-bg); color: var(--unsafe); }
.f-no, .st-ok, .f-used { background: var(--ok-bg); color: var(--ok); }
.st-derived { background: var(--retrieval-bg); color: var(--retrieval); }
.f-null, .f-unused { background: var(--null-bg); color: var(--null); }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; font-size: 13.5px; }
.kv > div:nth-child(odd) { color: var(--muted); }
pre.json { background: var(--code-bg); border-radius: 8px; padding: 10px; overflow: auto; max-height: 380px; font-size: 12px; margin: 6px 0 0; }
details { margin-top: 16px; }
summary { cursor: pointer; font-weight: 600; font-size: 13px; color: var(--muted); }
.muted { color: var(--muted); }
.error-box { background: var(--unsafe-bg); color: var(--unsafe); border-radius: 8px; padding: 10px 12px; font-size: 13.5px; margin-bottom: 10px; }

pre.hl-view { background: var(--code-bg); border-radius: 8px; padding: 10px; white-space: pre-wrap; word-break: break-word; font-size: 12.5px; max-height: 420px; overflow: auto; margin: 0; }
mark.hl { color: inherit; border-radius: 3px; padding: 0 1px; }
.hl-instruction_override { background: var(--hl-instruction_override); }
.hl-role_hijack { background: var(--hl-role_hijack); }
.hl-prompt_extraction { background: var(--hl-prompt_extraction); }
.hl-exfiltration { background: var(--hl-exfiltration); }
.hl-encoded_payload { background: var(--hl-encoded_payload); }
.hl-hidden_text { background: var(--hl-hidden_text); }
.hl-sensitive { background: var(--hl-sensitive); }
.hl-error { background: var(--hl-error); }

.prose { max-width: 840px; }
.prose h2 { font-size: 18px; margin: 22px 0 6px; }
.prose li { margin: 4px 0; }

.foot { text-align: center; color: var(--muted); font-size: 13px; padding: 16px 24px 28px; }