/* Interaktivní ukázky interpolace (js/interpolace.js); třídy .iw-* sdílí i rem.css */

.iw {
  --iw-s1: #2a78d6;   /* IDW */
  --iw-s2: #eb6834;   /* Spline */
  --iw-s3: #1baf7a;   /* Natural Neighbor */
  --iw-s4: #4a3aa7;   /* Kriging */
  --iw-surface: var(--md-default-bg-color);
  --iw-ink: var(--md-default-fg-color);
  --iw-ink2: var(--md-default-fg-color--light);
  --iw-muted: var(--md-default-fg-color--light);
  --iw-grid: var(--md-default-fg-color--lightest);
  --iw-terrain: rgba(137, 135, 129, 0.14);
  --iw-nodata: #e1e0d9;
  --iw-border: var(--md-default-fg-color--lightest);

  position: relative;
  margin: 1.2em 0;
  padding: 0.8rem;
  border: 0.05rem solid var(--iw-border);
  border-radius: 0.2rem;
  font-size: 0.7rem;
  line-height: 1.4;
}

[data-md-color-scheme="slate"] .iw {
  --iw-s1: #3987e5;
  --iw-s2: #d95926;
  --iw-s3: #199e70;
  --iw-s4: #9085e9;
  --iw-terrain: rgba(195, 194, 183, 0.10);
  --iw-nodata: #2c2c2a;
}

.iw-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.8rem;
  align-items: baseline;
  margin-bottom: 0.6rem;
}
.iw-head strong { font-size: 0.8rem; }
.iw-hint, .iw-sub { color: var(--md-default-fg-color--light); }
.iw-sub { margin: 0.4rem 0; }

.iw-plot { position: relative; }
.iw-canvas { display: block; max-width: 100%; }
.iw-map { cursor: crosshair; border-radius: 0.1rem; }
.iw .iw-plot > canvas:first-child { cursor: crosshair; }

/* legenda + přepínače metod */
.iw-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1rem;
  margin-bottom: 0.4rem;
}
.iw-check {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  user-select: none;
}
.iw-check.iw-static { cursor: default; }
.iw-check input { accent-color: var(--md-primary-fg-color); margin: 0; }
.iw-swatch-line {
  display: inline-block;
  width: 1.1rem;
  height: 0.15rem;
  border-radius: 0.1rem;
}
.iw-swatch-dash {
  background: repeating-linear-gradient(to right, var(--iw-muted) 0 4px, transparent 4px 7px);
}
.iw-rmse { color: var(--md-default-fg-color--light); font-variant-numeric: tabular-nums; }
.iw-rmse.iw-best { color: var(--md-default-fg-color); font-weight: 700; }

/* ovládací prvky */
.iw-ctrls {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: 0.6rem 1.2rem;
  margin-top: 0.8rem;
}
/* ovládací prvky po řádcích (profil): Body / IDW / Spline / Kriging */
.iw-ctrls.iw-ctrls-rows { display: flex; flex-direction: column; gap: 0.6rem; }
.iw-ctrl-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.4rem 1.2rem;
  padding-top: 0.6rem;
  border-top: 0.05rem solid var(--iw-border);
}
.iw-ctrl-row:first-child { padding-top: 0; border-top: none; }
.iw-ctrl-row > .iw-ctrl { flex: 0 1 12rem; min-width: 9rem; }
.iw-ctrl-row > .iw-ctrl-center { align-self: center; justify-content: center; }
.iw-ctrl-title {
  flex: 0 0 5rem;
  align-self: center;
  font-weight: 700;
  color: var(--iw-title-color, var(--md-default-fg-color));
}
@media screen and (max-width: 30em) {
  .iw-ctrl-title { flex-basis: 100%; }
  .iw-ctrl-row > .iw-ctrl { flex: 1 1 100%; }
}

.iw-ctrl { display: flex; flex-direction: column; gap: 0.2rem; }
.iw-ctrl-btn { justify-content: flex-end; }
.iw-lab { display: flex; justify-content: space-between; gap: 0.4rem; color: var(--md-default-fg-color--light); }
.iw-val { color: var(--md-default-fg-color); font-variant-numeric: tabular-nums; font-weight: 700; }
.iw input[type="range"] { width: 100%; accent-color: var(--md-primary-fg-color); margin: 0.2rem 0; }
.iw select {
  font: inherit;
  color: var(--md-default-fg-color);
  background: var(--md-default-bg-color);
  border: 0.05rem solid var(--md-default-fg-color--lighter);
  border-radius: 0.1rem;
  padding: 0.2rem 0.3rem;
}

.iw-btn {
  font: inherit;
  cursor: pointer;
  color: var(--md-primary-fg-color);
  background: transparent;
  border: 0.05rem solid var(--md-primary-fg-color);
  border-radius: 0.1rem;
  padding: 0.25rem 0.6rem;
  transition: background-color 125ms, color 125ms;
}
.iw-btn:hover { background: var(--md-accent-fg-color--transparent, rgba(0,0,0,0.05)); }
.iw-btn[aria-pressed="true"] {
  background: var(--md-primary-fg-color);
  color: var(--md-primary-bg-color);
}
.iw-btn:focus-visible, .iw tr:focus-visible { outline: 0.1rem solid var(--md-accent-fg-color); outline-offset: 0.1rem; }

.iw-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 0.6rem; margin-bottom: 0.5rem; }
.iw-rowlab { min-width: 4.2rem; color: var(--md-default-fg-color--light); }
.iw-seg { display: inline-flex; flex-wrap: wrap; }
.iw-seg .iw-btn { border-radius: 0; margin-right: -0.05rem; }
.iw-seg .iw-btn:first-child { border-radius: 0.1rem 0 0 0.1rem; }
.iw-seg .iw-btn:last-child { border-radius: 0 0.1rem 0.1rem 0; }

/* barevná stupnice rastru */
.iw-scale { margin-top: 0.4rem; }
.iw-grad { height: 0.5rem; border-radius: 0.1rem; background: var(--iw-grad); }
.iw-scale-lab { display: flex; justify-content: space-between; color: var(--md-default-fg-color--light); margin-top: 0.15rem; }

/* tooltip */
.iw-tip {
  position: absolute;
  pointer-events: none;
  z-index: 2;
  min-width: 9rem;
  padding: 0.35rem 0.5rem;
  background: var(--md-default-bg-color);
  border: 0.05rem solid var(--md-default-fg-color--lightest);
  border-radius: 0.1rem;
  box-shadow: var(--md-shadow-z1);
  font-size: 0.65rem;
}
.iw-tip[hidden] { display: none; }
.iw-tip > div { display: flex; justify-content: space-between; gap: 0.8rem; }
.iw-tip span { display: inline-flex; align-items: center; gap: 0.3rem; color: var(--md-default-fg-color--light); }
.iw-tip b { font-variant-numeric: tabular-nums; }
.iw-tip-h { font-weight: 700; margin-bottom: 0.15rem; }
.iw-dot { display: inline-block; width: 0.45rem; height: 0.45rem; border-radius: 50%; }

/* semivariogram */
.iw-vario { margin-top: 0.8rem; }
.iw-vario[hidden] { display: none; }

/* tabulka srovnání */
.iw-table { margin-top: 0.8rem; overflow-x: auto; }
.md-typeset .iw-table table { display: table; width: 100%; font-size: 0.65rem; border: none; margin: 0; }
.md-typeset .iw-table th, .md-typeset .iw-table td { padding: 0.3rem 0.6rem; border-top: 0.05rem solid var(--md-default-fg-color--lightest); }
.md-typeset .iw-table th { font-weight: 700; color: var(--md-default-fg-color--light); }
.md-typeset .iw-table tbody tr { cursor: pointer; }
.md-typeset .iw-table tbody tr:hover { background: var(--md-default-fg-color--lightest); }
.md-typeset .iw-table tr.iw-sel td:first-child { box-shadow: inset 0.15rem 0 0 var(--md-primary-fg-color); font-weight: 700; }
.md-typeset .iw-table tr.iw-best td:nth-child(2) { font-weight: 700; }
.iw-num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.iw-barcell { width: 30%; min-width: 4rem; }
.iw-bar { display: block; height: 0.3rem; border-radius: 0 0.2rem 0.2rem 0; }

@media screen and (max-width: 30em) {
  .iw { padding: 0.6rem; }
  .iw-barcell, .md-typeset .iw-table th:nth-child(3) { display: none; }
  .md-typeset .iw-table th, .md-typeset .iw-table td { padding: 0.3rem 0.35rem; }
}