:root {
  --paper: #f1ece3;
  --ink: #1d1a16;
  --muted: #6b645b;
  --rule: #d7cfc3;
  --sienna: #9a3412;
  --pine: #245c4c;
  --card: #faf7f1;
  --shadow: 0 0 0 1px var(--rule);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "IBM Plex Sans", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.45;
}

.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.rail {
  padding: 28px 22px;
  border-right: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.mark { color: inherit; text-decoration: none; display: block; }
.mark-kicker {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.mark-name {
  font-family: Fraunces, serif;
  font-size: 28px;
  font-weight: 620;
}
nav { display: flex; flex-direction: column; gap: 4px; }
nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 4px;
}
nav a.on, nav a:hover { background: #e7e0d4; }
.rail-foot { margin-top: auto; font-size: 13px; color: var(--muted); }
.status { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; color: var(--ink); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #b7aea2; display: inline-block; }
.dot.live { background: var(--pine); }
.dot.wait { background: #b45309; }
.dot.off { background: #b7aea2; }

main { padding: 36px 48px 64px; max-width: 1180px; }
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 28px;
}
.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sienna);
  margin: 0 0 6px;
}
h1 {
  font-family: Fraunces, serif;
  font-weight: 500;
  font-size: 34px;
  margin: 0;
  letter-spacing: -0.02em;
}
h2 {
  font-family: Fraunces, serif;
  font-weight: 500;
  font-size: 20px;
  margin: 0 0 10px;
}
.muted { color: var(--muted); font-size: 14px; }
.row { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; }
.stack { display: flex; flex-direction: column; gap: 12px; max-width: 280px; }

.btn, button.btn {
  background: var(--ink);
  color: var(--paper);
  border: 0;
  padding: 10px 16px;
  font: 500 14px "IBM Plex Sans", sans-serif;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn.alt { background: var(--pine); }
.ghost {
  background: transparent;
  border: 1px solid var(--rule);
  padding: 9px 14px;
  font: 500 14px "IBM Plex Sans", sans-serif;
  cursor: pointer;
  color: var(--ink);
  text-decoration: none;
  display: inline-block;
}
button:disabled { opacity: 0.4; cursor: not-allowed; }

.panel {
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 20px 22px 18px;
  margin-bottom: 18px;
}
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}
.kpi { background: var(--card); box-shadow: var(--shadow); padding: 16px 18px; }
.kpi-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.kpi-value { font-family: Fraunces, serif; font-size: 28px; margin-top: 6px; }
.kpi-day { font-family: "IBM Plex Mono", monospace; font-size: 11px; color: var(--muted); margin-top: 4px; }

.chart-grid, .analysis-grid, .two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.span-2 { grid-column: span 2; }
.triple { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.chart-sub { font-size: 14px; font-weight: 500; margin: 8px 0 0; font-family: "IBM Plex Sans", sans-serif; }
.plot { height: 260px; }
.plot.tall { height: 380px; }

.explore-form {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
input, select, textarea {
  font: 14px "IBM Plex Sans", sans-serif;
  border: 1px solid var(--rule);
  background: #fff;
  padding: 8px 10px;
  color: var(--ink);
}
textarea {
  font-family: "IBM Plex Mono", monospace;
  width: 100%;
  min-height: 180px;
  margin: 12px 0;
}
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 600; color: var(--muted); }
.err { color: var(--sienna); font-size: 12px; max-width: 420px; word-break: break-word; }
code, .schema { font-family: "IBM Plex Mono", monospace; font-size: 12px; }
.schema { background: #efe8dc; padding: 12px; overflow: auto; }
.steps { padding-left: 18px; }
.steps li { margin: 8px 0; }
.empty { background: var(--card); box-shadow: var(--shadow); padding: 36px; }
.flash { padding: 10px 12px; margin-bottom: 10px; }
.flash.ok { background: #deece4; }
.flash.error { background: #f3ddd4; }
.linkish {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--pine);
  cursor: pointer;
  text-decoration: underline;
}
.saved { list-style: none; padding: 0; }
.saved li { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--rule); }

.unlock-body { display: grid; place-items: center; min-height: 100vh; }
.unlock { width: 320px; }
.unlock h1 { margin-bottom: 8px; }

@media (max-width: 980px) {
  .shell { grid-template-columns: 1fr; }
  .rail { height: auto; position: static; border-right: 0; border-bottom: 1px solid var(--rule); }
  .kpi-grid, .chart-grid, .analysis-grid, .two-col, .explore-form, .triple { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  main { padding: 24px; }
}