/* The page around the grid. The grid brings its own stylesheet. */

:root {
  --ground: #ffffff;
  --surface: #f6f7f9;
  --ink: #16191d;
  --ink-2: #4d5761;
  --ink-3: #79838d;
  --rule: #dfe3e7;
  --accent: #1a6bc7;
  --danger: #c22b2b;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font: 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

.app {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 20px 72px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ---------------------------------------------------------- loading */

.loading {
  max-width: 640px;
  margin: 18vh auto;
  padding: 0 20px;
  text-align: center;
}
.loading h1 { font-size: 1.5rem; margin: 0 0 10px; }
.loading-message { color: var(--ink-2); margin: 6px 0; }

/* -------------------------------------------------------- masthead */

.masthead { border-bottom: 2px solid var(--ink); padding-bottom: 16px; }
.masthead h1 {
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 10px;
  max-width: 26ch;
}
.lede { margin: 0 0 8px; color: var(--ink-2); max-width: 74ch; }
.facts {
  margin: 0;
  font: 12.5px/1.5 var(--mono);
  color: var(--ink-3);
}

/* ------------------------------------------------------------ tiles */

.kpi-strip { display: flex; flex-direction: column; gap: 6px; }
.tile-note { margin: 0; font-size: 12.5px; color: var(--ink-3); max-width: 96ch; }

/* --------------------------------------------------------- controls */

.controls { display: flex; flex-direction: column; gap: 10px; }
.chips, .group-row { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; }
.chips-label { font-size: 12.5px; color: var(--ink-2); }

.chip {
  font: 12.5px var(--mono);
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--ground);
  color: var(--ink);
  cursor: pointer;
}
.chip:hover { border-color: var(--accent); }
.chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.chip-clear {
  font-size: 12.5px; padding: 5px 8px; border: 0; background: none;
  color: var(--accent); cursor: pointer;
}

.group-select {
  font: 12.5px var(--mono);
  padding: 5px 9px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: var(--ground);
  color: var(--ink);
}
.group-select:disabled { color: var(--ink-3); cursor: not-allowed; }
.group-note { font-size: 12.5px; color: var(--ink-2); }
.group-note.blocked { color: var(--ink-3); }

/* ------------------------------------------------------------- grid */

.grid-host {
  height: 620px;
  border: 1px solid var(--rule);
  border-radius: 9px;
  overflow: hidden;
}

/* -------------------------------------------------------- push plan */

.plan {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px 22px;
  align-items: start;
  border: 1px solid var(--rule);
  border-radius: 9px;
  padding: 16px 18px;
  background: var(--surface);
}
.plan-head { grid-column: 1 / -1; }
.plan-head h2 { font-size: 1.05rem; margin: 0 0 4px; }
.plan-summary { margin: 0; font: 12.5px/1.5 var(--mono); color: var(--ink-2); }

.plan-split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.plan-col h3 {
  font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-3); margin: 0 0 6px;
}
.plan-list { margin: 0; padding-left: 18px; font-size: 13px; color: var(--ink-2); }
.plan-list li { margin-bottom: 3px; }

.plan-sql {
  margin: 0;
  background: #0f1420;
  color: #cfe0f0;
  border-radius: 8px;
  padding: 12px 14px;
  font: 11.5px/1.5 var(--mono);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 340px;
  overflow: auto;
}

.range-panel {
  grid-column: 1 / -1;
  border-top: 1px solid var(--rule);
  padding-top: 12px;
}
.range-panel h3 {
  font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--ink-3); margin: 0 0 6px;
}
.range-body { margin: 0; font-size: 13px; color: var(--ink-2); max-width: 96ch; }
.range-contrast { display: block; margin-top: 7px; color: var(--ink-3); }

/* ----------------------------------------------------------- charts */

.charts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.chart-box {
  height: 300px;
  border: 1px solid var(--rule);
  border-radius: 9px;
  padding: 6px;
  background: var(--ground);
  min-width: 0;
}
.chart-box.wide { grid-column: 1 / -1; }
.chart-error { font-size: 13px; color: var(--danger); padding: 8px; }

/* -------------------------------------------------------- colophon */

.colophon {
  font-size: 12.5px;
  color: var(--ink-3);
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  max-width: 90ch;
}
.colophon a { color: var(--accent); }
.why-zip { display: block; margin-top: 8px; color: var(--ink-3); }
.why-zip code { font-family: var(--mono); font-size: 0.92em; }

/* ----------------------------------------------------------- narrow */

@media (max-width: 900px) {
  .plan { grid-template-columns: minmax(0, 1fr); }
  .plan-split { grid-template-columns: 1fr; }
  .charts { grid-template-columns: minmax(0, 1fr); }
  .chart-box.wide { grid-column: auto; }
  .grid-host { height: 480px; }
}