:root {
  --bg: #f4f6f8;
  --card: #fff;
  --text: #1b2430;
  --muted: #566272;
  --line: #d9dfe6;
  --accent: #0b5cad;
  --accent-text: #fff;
  --hit: #fff1b8;
  --err: #b3261e;
  --warn-bg: #ffe6cc;
  --warn-text: #8a3b00;
  --radius: 12px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161c;
    --card: #1b2129;
    --text: #e8ebef;
    --muted: #a3adb9;
    --line: #2c3540;
    --accent: #7ab4f2;
    --accent-text: #0b1220;
    --hit: #52450f;
    --err: #ff9a90;
    --warn-bg: #4d2d10;
    --warn-text: #ffc99a;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
h1, h2, h3 { line-height: 1.25; margin: 0; }
p { margin: 0; }
a { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 760px;
  margin: 0 auto;
  padding: 12px 16px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; }
.logo-bg { fill: var(--accent); }
.logo-bar { fill: var(--accent-text); }
main { max-width: 760px; margin: 0 auto; padding: 0 16px 24px; display: grid; gap: 16px; }

button, .linkbtn {
  font: inherit;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
button:disabled { opacity: 0.6; cursor: default; }
.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
.secondary { background: var(--card); }
.icon { width: 44px; padding: 0; font-size: 22px; border-radius: 50%; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.welcome { display: grid; gap: 12px; }
.welcome h2 { font-size: 18px; }
.steps { margin: 0; padding-left: 20px; display: grid; gap: 6px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.small { font-size: 14px; color: var(--muted); }
.feedback { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

#search h1 { font-size: clamp(24px, 6.5vw, 32px); }
.lead { color: var(--muted); margin: 6px 0 14px; }
.field { display: flex; gap: 8px; }
.field input {
  flex: 1;
  min-width: 0;
  min-height: 52px;
  padding: 0 14px;
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
}
.field .primary { min-width: 80px; }
.field-error { color: var(--err); font-size: 14px; min-height: 0; margin-top: 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip { min-height: 36px; padding: 0 12px; border-radius: 18px; font-size: 14px; color: var(--muted); }

.status { color: var(--muted); }
.status.error { color: var(--err); }
.regions { font-size: 14px; color: var(--muted); }

.results { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.result { display: grid; gap: 8px; }
.result h3 { font-size: 17px; overflow-wrap: anywhere; }
.meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 14px; }
.badge {
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 6px;
  padding: 0 8px;
  font-weight: 600;
}
.region { color: var(--muted); }
.tag { border-radius: 6px; padding: 0 8px; font-weight: 600; }
.tag.best { background: var(--accent); color: var(--accent-text); }
.tag.old { background: var(--warn-bg); color: var(--warn-text); }

footer { max-width: 760px; margin: 0 auto; padding: 8px 16px 32px; font-size: 13px; color: var(--muted); display: grid; gap: 4px; }

#backdrop { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45); z-index: 10; }
.sheet {
  position: fixed;
  z-index: 11;
  left: 0;
  right: 0;
  bottom: 0;
  max-height: 88vh;
  background: var(--card);
  color: var(--text);
  border-radius: 16px 16px 0 0;
  padding: 12px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}
.sheet-head { display: flex; gap: 8px; justify-content: space-between; align-items: flex-start; }
.sheet-head h2 { font-size: 17px; overflow-wrap: anywhere; }
.sheet-tools { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.sheet-tools label { font-weight: 600; margin-right: 6px; }
.sheet select { min-height: 44px; font: inherit; padding: 0 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--text); }
#period-box { display: flex; align-items: center; }

.table-wrap {
  position: relative;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  min-height: 120px;
  flex: 1 1 auto;
}
table { border-collapse: collapse; font-size: 14px; width: max-content; min-width: 100%; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: right; font-variant-numeric: tabular-nums; }
thead th { position: sticky; top: 0; background: var(--card); z-index: 2; font-weight: 600; text-align: right; max-width: 240px; }
tbody th { text-align: left; font-weight: 500; position: sticky; left: 0; background: var(--card); z-index: 1; max-width: 220px; }
thead th:first-child { left: 0; z-index: 3; text-align: left; }
tr.hit th, tr.hit td { background: var(--hit); font-weight: 600; }
td.none { color: var(--muted); }
.swatch { display: inline-block; width: 14px; height: 14px; background: var(--hit); border: 1px solid var(--line); vertical-align: -2px; border-radius: 3px; }
.linkbtn { align-self: flex-start; }
#panel-tools { gap: 6px; }
#panel-tools button { padding: 0 11px; }

.answer { display: grid; gap: 8px; }
.answer-row { background: var(--hit); border-radius: 10px; padding: 10px 12px; }
.answer-row h3 { font-size: 15px; overflow-wrap: anywhere; }
.answer-values { display: flex; flex-wrap: wrap; gap: 6px 22px; margin: 6px 0 0; }
.answer-values dt { font-size: 13px; opacity: 0.85; overflow-wrap: anywhere; max-width: 200px; }
.answer-values dd { margin: 0; font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }

@media (min-width: 900px) {
  #backdrop { display: none; }
  body.panel-open { padding-right: min(620px, 92vw); }
  .sheet { left: auto; top: 0; width: min(620px, 92vw); max-height: none; border-radius: 16px 0 0 16px; padding-top: 16px; }
}