:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --line: #e2e7f1;
  --text: #1e2635;
  --dim: #66718c;
  --green: #14884d;
  --yellow: #a16207;
  --red: #c93a2e;
  --blue: #226fad;
  --accent: #4a67e8;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  line-height: 1.55;
}
main { max-width: 960px; margin: 0 auto; padding: 24px 16px 60px; }
header { margin-bottom: 20px; }
h1 { font-size: 1.5rem; }
.sub { color: var(--dim); font-size: 0.9rem; }
.updated { color: var(--dim); font-size: 0.78rem; margin-top: 4px; }
h2 { font-size: 1.05rem; margin-bottom: 12px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(30, 38, 53, 0.06);
}
.hidden { display: none; }

.regime-badge {
  display: inline-block;
  font-size: 1.35rem;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 10px;
  margin-bottom: 10px;
}
.regime-A { background: rgba(20,136,77,.10); color: var(--green); border: 1px solid var(--green); }
.regime-B { background: rgba(161,98,7,.10); color: var(--yellow); border: 1px solid var(--yellow); }
.regime-C { background: rgba(201,58,46,.10); color: var(--red); border: 1px solid var(--red); }
.regime-D { background: rgba(34,111,173,.10); color: var(--blue); border: 1px solid var(--blue); }
.regime-desc { color: var(--dim); margin-bottom: 14px; }

.metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 10px; }
.metric { background: rgba(30,38,53,.035); border-radius: 8px; padding: 10px 12px; }
.metric .k { color: var(--dim); font-size: 0.75rem; }
.metric .v { font-size: 1.05rem; font-weight: 600; margin-top: 2px; }
.metric .v.pos { color: var(--green); }
.metric .v.neg { color: var(--red); }

.actions { list-style: none; }
.actions li { padding: 8px 0 8px 26px; position: relative; border-bottom: 1px dashed var(--line); }
.actions li:last-child { border-bottom: none; }
.actions li::before { content: "▶"; position: absolute; left: 4px; color: var(--accent); font-size: 0.7rem; top: 12px; }
.band-status { margin-top: 12px; font-size: 0.85rem; color: var(--dim); }
.band-status table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.band-status td, .band-status th { padding: 5px 8px; border-bottom: 1px solid var(--line); text-align: left; font-size: 0.83rem; }
.fired { color: var(--green); }

table#alloc-table { width: 100%; border-collapse: collapse; }
#alloc-table th, #alloc-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
#alloc-table th { color: var(--dim); font-weight: 500; font-size: 0.8rem; }
.note { color: var(--dim); font-size: 0.78rem; margin-top: 8px; }

.controls { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 14px; }
.controls label { display: flex; flex-direction: column; gap: 4px; color: var(--dim); font-size: 0.8rem; }
.controls input {
  background: #fff; color: var(--text);
  border: 1px solid #c9d2e3; border-radius: 8px;
  padding: 8px 10px; font-size: 0.95rem; width: 150px;
}
.controls button {
  background: var(--accent); color: #fff; border: none;
  border-radius: 8px; padding: 9px 20px; font-size: 0.95rem; cursor: pointer;
}
.controls button:hover { opacity: 0.9; }

.sim-result { font-size: 1.02rem; margin-bottom: 12px; }
.sim-result .big { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
canvas#chart { width: 100%; height: auto; background: rgba(30,38,53,.025); border-radius: 8px; }
.sim-detail { margin-top: 12px; font-size: 0.85rem; color: var(--dim); }
.sim-detail table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.sim-detail td, .sim-detail th { padding: 5px 8px; border-bottom: 1px solid var(--line); text-align: left; font-size: 0.83rem; }

.rules p { font-size: 0.87rem; padding: 5px 0; border-bottom: 1px dashed var(--line); }
.rules p:last-child { border-bottom: none; }
footer { color: var(--dim); font-size: 0.75rem; margin-top: 24px; text-align: center; }
@media (max-width: 640px) {
  .regime-badge { font-size: 1.1rem; }
  .controls input { width: 120px; }
}