/* Cross-section viewer — layout + Lao typography */

@font-face {
  font-family: 'Noto Sans Lao';
  src: url('../vendor/fonts/NotoSansLao-lao.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0E81-0EDF, U+200C-200D, U+25CC;
}
@font-face {
  font-family: 'Noto Sans Lao';
  src: url('../vendor/fonts/NotoSansLao-latin.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
  unicode-range: U+0000-00FF, U+2000-206F, U+2212;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: 'Noto Sans Lao', 'Phetsarath OT', 'Saysettha OT', 'Lao UI', system-ui, sans-serif;
  font-size: 15px;
  color: #14212e;
  background: #f4f6f8;
}

#root {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* ---- header ---- */
header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 8px 14px;
  background: #0f2740;
  color: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
  z-index: 1200;
}

header h1 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  margin-right: auto;
}

header label {
  font-size: 0.85rem;
  opacity: 0.85;
}

select {
  font-family: inherit;
  font-size: 0.9rem;
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid #3d5875;
  background: #16344f;
  color: #fff;
  max-width: 46vw;
}

#download, #download-all {
  font-size: 0.9rem;
  padding: 6px 12px;
  border-radius: 6px;
  background: #1e88e5;
  color: #fff;
  text-decoration: none;
  white-space: nowrap;
}
#download:hover { background: #1976d2; }
#download-all { background: #2e9e5b; }
#download-all:hover { background: #278a4f; }

/* ---- main split ---- */
main {
  flex: 1;
  display: grid;
  grid-template-columns: 55% 45%;
  min-height: 0;
}

#map {
  height: 100%;
  min-height: 0;
  background: #0a1620;
}

#panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: #fff;
  border-left: 1px solid #d7dee5;
}

#panel-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid #e3e9ee;
}

#info {
  font-size: 0.85rem;
  color: #33475b;
  margin-right: auto;
}

#panel-head label { font-size: 0.8rem; color: #55708c; }

#ve-select {
  background: #fff;
  color: #14212e;
  border: 1px solid #c3ced8;
}

#chart-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
}

#chart {
  position: absolute;
  inset: 0;
}

#chart-prompt {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
  font-size: 0.95rem;
  color: #55708c;
  background: #fff;
  z-index: 5;
}

/* ---- map labels ---- */
.xs-label {
  background: rgba(10, 22, 32, 0.75);
  border: none;
  border-radius: 4px;
  box-shadow: none;
  color: #aef3ff;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 5px;
}
.xs-label::before { display: none; }

/* ---- mobile ---- */
@media (max-width: 900px) {
  main {
    grid-template-columns: 1fr;
    grid-template-rows: 45vh minmax(0, 1fr);
  }
  #panel { border-left: none; border-top: 1px solid #d7dee5; }
  header h1 { font-size: 0.95rem; width: 100%; }
  select { max-width: 60vw; }
}