:root {
  --bg: #0b0f1a;
  --bg-elev: #131a2c;
  --bg-card: #182238;
  --border: #243049;
  --text: #e8edf6;
  --text-muted: #8a97b0;
  --accent: #4ea8de;
  --accent-strong: #7cc2ff;
  --allow: #34d399;
  --block: #f87171;
  --warn: #fbbf24;
  --challenge: #c084fc;
  --review: #60a5fa;
  --critical: #ef4444;
  --high: #f97316;
  --medium: #facc15;
  --low: #22c55e;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px; border-bottom: 1px solid var(--border);
  background: rgba(11,15,26,0.85); backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  width: 38px; height: 38px; border-radius: 8px;
  background: linear-gradient(135deg, #4ea8de 0%, #1e6cb6 100%);
  color: #0b0f1a; font-weight: 800; font-size: 16px;
  display: grid; place-items: center;
}
.brand-title { font-weight: 700; letter-spacing: -0.01em; font-size: 17px; }
.brand-sub { font-size: 12px; color: var(--text-muted); }

.env-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 999px; font-size: 12px; color: var(--text-muted);
}
.env-pill .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--allow); box-shadow: 0 0 8px var(--allow);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.7; transform: scale(1.15); }
}

.page {
  max-width: 1080px; margin: 0 auto; padding: 40px 32px 80px;
}

.hero { margin-bottom: 32px; }
.hero h1 {
  margin: 0 0 12px; font-size: 34px; font-weight: 700; letter-spacing: -0.02em;
  background: linear-gradient(120deg, #ffffff 0%, #4ea8de 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { color: var(--text-muted); font-size: 16px; max-width: 720px; margin: 0; }
.lede em { color: var(--accent-strong); font-style: normal; }

.scenarios {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px; margin-bottom: 32px;
}

.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px; display: flex; flex-direction: column; gap: 12px;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}
.card:hover { transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 12px 32px rgba(78,168,222,0.15); }
.card.busy { opacity: 0.6; pointer-events: none; }

.card-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  background: var(--bg-elev); border: 1px solid var(--border);
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em;
  font-weight: 600; align-self: flex-start;
}
.card-tag.expect-allow { color: var(--allow); border-color: rgba(52,211,153,0.35); }
.card-tag.expect-block { color: var(--block); border-color: rgba(248,113,113,0.35); }
.card-tag.expect-advisory { color: var(--warn); border-color: rgba(251,191,36,0.35); }

.card-title { font-size: 16px; font-weight: 600; margin: 0; }
.card-desc { color: var(--text-muted); font-size: 13px; margin: 0; }
.card-meta {
  display: flex; gap: 12px; flex-wrap: wrap;
  font-size: 11px; color: var(--text-muted);
  font-family: "SF Mono", Menlo, Consolas, monospace;
}
.card-meta span { background: var(--bg-elev); padding: 3px 8px; border-radius: 4px; border: 1px solid var(--border); }

.card-btn {
  margin-top: auto; padding: 10px 14px; border: none; border-radius: 8px;
  background: var(--accent); color: #0b0f1a; font-weight: 600; font-size: 13px;
  cursor: pointer; transition: background 0.15s ease;
}
.card-btn:hover { background: var(--accent-strong); }

.results { margin-bottom: 32px; }

.empty-state {
  background: var(--bg-elev); border: 1px dashed var(--border); border-radius: 12px;
  padding: 48px 24px; text-align: center; color: var(--text-muted);
}
.empty-icon { font-size: 36px; margin-bottom: 8px; opacity: 0.5; }

.result-panel {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; display: flex; flex-direction: column; gap: 20px;
}

.result-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.result-title { font-size: 18px; font-weight: 600; margin: 0; }
.result-meta { font-size: 12px; color: var(--text-muted); font-family: "SF Mono", Menlo, Consolas, monospace; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 999px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.04em;
  font-family: "SF Mono", Menlo, Consolas, monospace;
}
.badge .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; }

.badge.ALLOW   { color: var(--allow);   background: rgba(52,211,153,0.10); border: 1px solid rgba(52,211,153,0.35); }
.badge.BLOCK   { color: var(--block);   background: rgba(248,113,113,0.10); border: 1px solid rgba(248,113,113,0.35); }
.badge.WARN    { color: var(--warn);    background: rgba(251,191,36,0.10); border: 1px solid rgba(251,191,36,0.35); }
.badge.CHALLENGE { color: var(--challenge); background: rgba(192,132,252,0.10); border: 1px solid rgba(192,132,252,0.35); }
.badge.REVIEW  { color: var(--review);  background: rgba(96,165,250,0.10); border: 1px solid rgba(96,165,250,0.35); }

.badge.LOW      { color: var(--low); }
.badge.MEDIUM   { color: var(--medium); }
.badge.HIGH     { color: var(--high); }
.badge.CRITICAL { color: var(--critical); }

.flow {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px;
}
.flow-step {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 12px;
  display: flex; flex-direction: column; gap: 4px;
  position: relative;
}
.flow-step::after {
  content: "→"; position: absolute; right: -10px; top: 50%;
  transform: translateY(-50%); color: var(--text-muted); font-size: 14px;
}
.flow-step:last-child::after { content: ""; }
.flow-step .label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-muted); font-weight: 600;
}
.flow-step .value { font-size: 13px; font-weight: 600; }

.kv {
  display: grid; grid-template-columns: 200px 1fr; gap: 6px 16px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
}
.kv dt { color: var(--text-muted); font-size: 12px; }
.kv dd { margin: 0; font-size: 13px; word-break: break-all; }

.signals { display: flex; flex-direction: column; gap: 8px; }
.signal {
  display: grid; grid-template-columns: 110px 1fr auto;
  gap: 12px; align-items: center;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 14px;
  font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 12px;
}
.signal .weight { color: var(--accent-strong); font-weight: 700; }
.signal .name { color: var(--text); }
.signal .reason { color: var(--text-muted); font-size: 11px; }
.signal .conf { color: var(--text-muted); }

.section-title {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-muted); margin: 0 0 10px; font-weight: 700;
}

.legend {
  margin-top: 32px; background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px;
}
.legend h2 { margin: 0 0 12px; font-size: 16px; }
.legend ul { margin: 0; padding-left: 18px; color: var(--text-muted); }
.legend li { margin-bottom: 8px; }
.legend strong { color: var(--text); }

.footer {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 32px; border-top: 1px solid var(--border);
  color: var(--text-muted); font-size: 12px;
}
.footer-note { font-style: italic; }