:root {
  color-scheme: dark;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --map-font-family: "Courier New", monospace;
  --map-font-size: 12px;
  --map-line-height: 14px;
  --cell-size: var(--map-line-height);
  --bg: #080b08;
  --panel: #10160f;
  --panel-strong: #172015;
  --line: #2d3d26;
  --line-hot: #7a9b4a;
  --text: #d9e6c6;
  --muted: #8ea37d;
  --green: #66ff8a;
  --amber: #f2d16b;
  --red: #ff6f61;
  --cyan: #79d8ff;
  --shadow: rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  height: 100vh;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(102, 255, 138, 0.045), transparent 32vh),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.025) 0, rgba(255, 255, 255, 0.025) 1px, transparent 1px, transparent 4px),
    var(--bg);
}

header {
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(23, 32, 21, 0.98), rgba(8, 11, 8, 0.96));
  box-shadow: 0 10px 28px var(--shadow);
}

.masthead {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  color: var(--green);
  font-size: 22px;
  font-weight: 700;
  text-shadow: 0 0 12px rgba(102, 255, 138, 0.35);
}

.creditline {
  max-width: 820px;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--green);
  text-decoration: underline;
}

.sigil {
  color: var(--amber);
  border: 1px solid var(--line);
  background: #070907;
  padding: 6px 8px;
  min-width: 68px;
  text-align: center;
}

.toolbar {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.field-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
}

input[type="range"] {
  width: 128px;
  accent-color: var(--green);
}

.statusline {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.statusline span {
  color: var(--amber);
}

button,
select {
  font: inherit;
  color: var(--text);
  background: #0a1009;
  border: 1px solid var(--line);
  border-radius: 4px;
}

button {
  min-height: 34px;
  padding: 7px 12px;
  cursor: pointer;
}

button:hover,
button:focus-visible,
select:focus-visible {
  border-color: var(--line-hot);
  outline: 1px solid rgba(102, 255, 138, 0.42);
}

button.primary {
  color: #071007;
  border-color: var(--green);
  background: var(--green);
  font-weight: 700;
}

select {
  min-width: min(240px, 80vw);
  padding: 7px 9px;
}

main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
  gap: 12px;
  padding: 12px;
  overflow: hidden;
}

#gridWrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  position: relative;
  background: #000;
  width: 100%;
  height: 100%;
  min-height: 360px;
  box-shadow: inset 0 0 0 1px rgba(102, 255, 138, 0.08), 0 12px 30px var(--shadow);
}

#gridWrap::before {
  content: "";
  position: sticky;
  display: block;
  top: 0;
  height: 0;
  border-top: 2px solid rgba(102, 255, 138, 0.22);
  z-index: 10;
}

#mapInner {
  position: relative;
  display: inline-block;
  transform-origin: top left;
}

#colorMap,
#coarseMap {
  position: relative;
  display: inline-block;
}

#colorMap pre,
#coarseMap pre {
  margin: 0;
  font-family: var(--map-font-family);
  font-size: var(--map-font-size);
  line-height: var(--map-line-height);
  background: #000;
  color: #00aa00;
  white-space: pre;
  display: inline-block;
}

#coarseMap pre {
  opacity: 0.9;
}

#grid {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-block;
  pointer-events: none;
  font-family: var(--map-font-family);
  font-size: var(--map-font-size);
  line-height: var(--map-line-height);
  z-index: 3;
}

#mapPreview {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  background: #000;
}

.rowline {
  display: block;
  height: var(--map-line-height);
}

.cell {
  display: inline-block;
  width: var(--cell-size);
  height: var(--cell-size);
  line-height: var(--cell-size);
  text-align: center;
  user-select: none;
  white-space: pre;
  color: transparent;
  background: transparent;
  font-family: var(--map-font-family);
  font-size: var(--map-font-size);
}

.start {
  background: rgba(102, 255, 138, 0.65);
  box-shadow: 0 0 0 1px #eaffd6 inset, 0 0 10px rgba(102, 255, 138, 0.75);
}

.end {
  background: rgba(255, 111, 97, 0.72);
  box-shadow: 0 0 0 1px #fff0df inset, 0 0 10px rgba(255, 111, 97, 0.75);
}

.path {
  background: rgba(242, 209, 107, 0.72);
  box-shadow: 0 0 0 1px rgba(255, 246, 190, 0.8) inset;
}

#output {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: linear-gradient(180deg, var(--panel-strong), var(--panel));
  box-shadow: 0 12px 30px var(--shadow);
}

#output h2 {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 16px;
}

#output h3 {
  margin: 16px 0 8px;
  color: var(--cyan);
  font-size: 13px;
}

pre {
  margin: 6px 0;
  padding: 10px;
  min-height: 42px;
  color: var(--amber);
  background: #050805;
  border: 1px solid #1d2b19;
  border-radius: 4px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

footer {
  padding: 9px 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #070907;
  font-size: 12px;
  line-height: 1.45;
}

/* Color classes matching tnsp map HTML */
#colorMap i.a { color: #000000; }
#colorMap i.b { color: #0000aa; }
#colorMap i.c { color: #aa0000; }
#colorMap i.d { color: #aaaa00; }
#colorMap i.e { color: #00aa00; }
#colorMap i.f { color: #aaaaaa; }
#colorMap i.g { color: #00ffff; }
#colorMap i.h { color: #770077; }
#colorMap i.i { color: #777777; }
#colorMap i.j { color: #0000ff; }
#colorMap i.k { color: #ee0000; }
#colorMap i.l { color: #ffff00; }
#colorMap i.m { color: #00ff00; }
#colorMap i.n { color: #ffffff; }
#colorMap i.o { color: #00ffff; }
#colorMap i.p { color: #ff00ff; }
#colorMap i.q { color: #ff0000; font-weight: bold; }
#colorMap i.r { color: #333333; font-weight: bold; }
#colorMap a.a { background: #000000; color: black; }
#colorMap a.b { background: #0000aa; color: black; }
#colorMap a.c { background: #aa0000; color: black; }
#colorMap a.d { background: #aaaa00; color: black; }
#colorMap a.e { background: #00aa00; color: black; }
#colorMap a.f { background: #aaaaaa; color: black; }
#colorMap a.g { background: #00ffff; color: black; }
#colorMap a.h { background: #770077; color: black; }
#colorMap a.i { background: #777777; color: black; }
#colorMap a.j { background: #0000ff; color: black; }
#colorMap a.k { background: #ee0000; color: black; }
#colorMap a.l { background: #ffff00; color: black; }
#colorMap a.m { background: #00ff00; color: black; }
#colorMap a.n { background: #ffffff; color: black; }
#colorMap a.o { background: #00ffff; color: black; }
#colorMap a.p { background: #ff00ff; color: black; }
#colorMap a.q { background: #ff0000; font-weight: bold; color: black; }
#colorMap a.r { background: #333333; font-weight: bold; color: black; }
#colorMap i.label { background: white; color: black; position: relative; }
#colorMap i.label a {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  border: 2px solid black;
  border-radius: 0.35em;
  padding: 0.15em;
  box-shadow: 2px 2px 4px black;
}
#colorMap i.marker.nactive { animation: pulse 1s ease infinite; }
#colorMap i.label a.nactive {
  border: 2px solid rgba(100, 0, 0, 0.5);
  background: rgba(255, 0, 0, 0.7);
  color: rgba(255, 255, 255, 0.8);
  text-shadow: 1px 1px 1px #000;
  font-weight: bold;
  transform: scale(1.1);
}

@keyframes pulse {
  0% { background: #000; }
  50% { background: #f00; }
  100% { background: #000; }
}

.hidden {
  display: none !important;
}

@media (max-width: 900px) {
  body {
    height: auto;
    min-height: 100vh;
  }

  main {
    grid-template-columns: 1fr;
    overflow: visible;
  }

  #gridWrap {
    height: 58vh;
  }
}