/* =========================================================
   Spectrum Next converter chrome
   Matches the retro desktop language used by tilemap.html
   ========================================================= */
:root {
  --black: #000000;
  --dark-grey: #68605c;
  --grey: #b0b0b8;
  --white: #fcfcfc;
  --blue-dark: #1c38ac;
  --blue: #7070fc;
  --red-dark: #a82814;
  --red: #fc4848;
  --green-dark: #208800;
  --green: #70f828;
  --purple-dark: #b82cd0;
  --purple: #fc74ec;
  --orange-dark: #ac581c;
  --orange: #f8a850;
  --cyan: #3cd4e4;
  --yellow: #f8ec20;

  --desk: var(--dark-grey);
  --chrome: var(--grey);
  --chrome-light: var(--white);
  --chrome-mid: #d8d8e0;
  --chrome-dark: #383838;
  --title: var(--blue-dark);
  --title-hot: var(--blue);
  --text: var(--black);
  --shadow: var(--black);
}

* { box-sizing: border-box; }

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background:
    linear-gradient(90deg, rgba(0,0,0,.08) 1px, transparent 1px),
    linear-gradient(rgba(0,0,0,.08) 1px, transparent 1px),
    var(--desk);
  background-size: 16px 16px, 16px 16px, auto;
  color: var(--text);
  font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif;
  font-size: 12px;
  line-height: 1.2;
}

body {
  min-height: 100vh;
  padding: 10px;
  overflow-y: auto;
}

main {
  width: min(1180px, 100%);
  margin: 0 auto;
  background: var(--chrome);
  border: 2px solid var(--black);
  box-shadow: 6px 6px 0 rgba(0,0,0,.35);
  padding: 6px;
}

main::after {
  content: "";
  display: block;
  clear: both;
}

h1 {
  margin: 0 0 6px 0;
  padding: 5px 7px;
  min-height: 28px;
  font-size: clamp(17px, 3vw, 24px);
  line-height: 1.05;
  color: var(--white);
  background: linear-gradient(90deg, var(--blue-dark), var(--blue));
  border: 1px solid var(--black);
  font-weight: bold;
  letter-spacing: -0.02em;
  text-shadow: 1px 1px 0 var(--black);
}

p {
  margin: 6px 0;
  padding: 6px;
  color: var(--black);
  background: var(--chrome-mid);
  border: 2px solid;
  border-top-color: var(--shadow);
  border-left-color: var(--shadow);
  border-right-color: var(--chrome-light);
  border-bottom-color: var(--chrome-light);
}

.note {
  margin-top: 8px;
  font-size: 12px;
}

label {
  display: block;
  margin: 0 0 4px 0;
  color: var(--black);
  font-weight: bold;
}

button,
input,
select { font: inherit; }

input[type="text"],
select,
input[type="file"] {
  width: 100%;
  min-height: 26px;
  padding: 3px 5px;
  border: 2px solid;
  border-top-color: var(--shadow);
  border-left-color: var(--shadow);
  border-right-color: var(--chrome-light);
  border-bottom-color: var(--chrome-light);
  border-radius: 0;
  background: var(--white);
  color: var(--black);
  outline: none;
}

input[type="file"] {
  background: var(--chrome-mid);
  cursor: pointer;
}

input[type="color"] {
  width: 64px;
  min-height: 28px;
  padding: 0;
  border: 2px solid var(--black);
  border-radius: 0;
  background: var(--white);
  cursor: pointer;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--blue-dark);
}

input:focus,
select:focus {
  outline: 1px dotted var(--blue-dark);
  outline-offset: -3px;
}

button {
  min-height: 28px;
  padding: 3px 8px;
  border-style: solid;
  border-width: 2px;
  border-top-color: var(--chrome-light);
  border-left-color: var(--chrome-light);
  border-right-color: var(--shadow);
  border-bottom-color: var(--shadow);
  border-radius: 0;
  background: var(--chrome);
  color: var(--black);
  cursor: pointer;
  box-shadow: none;
  text-align: center;
  user-select: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

button:hover:not(:disabled) {
  background: var(--yellow);
  color: var(--black);
}

button:active:not(:disabled) {
  border-top-color: var(--shadow);
  border-left-color: var(--shadow);
  border-right-color: var(--chrome-light);
  border-bottom-color: var(--chrome-light);
  background: var(--blue-dark);
  color: var(--white);
}

button:disabled,
select:disabled {
  opacity: .55;
  cursor: not-allowed;
}

code,
.code,
.detail b,
.pill b,
.range-value {
  font-family: "Lucida Console", Monaco, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.input-row,
.controls,
.details,
.info,
.download-grid,
.preview-grid,
.swatches {
  display: grid;
  gap: 6px;
}

.input-row {
  grid-template-columns: 1fr 72px;
  margin-bottom: 6px;
}

.controls {
  grid-template-columns: 1.3fr minmax(150px, .6fr) minmax(180px, .7fr) minmax(190px, .8fr) minmax(170px, .7fr) minmax(120px, .55fr);
  align-items: end;
  margin: 6px 0;
  padding: 6px;
  background: var(--chrome);
  border: 2px solid;
  border-top-color: var(--chrome-light);
  border-left-color: var(--chrome-light);
  border-right-color: var(--shadow);
  border-bottom-color: var(--shadow);
}

.download-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 6px 0;
}

.info,
.details {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 6px 0;
}

.details { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.swatches,
.preview-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 6px;
}

.status,
.error {
  min-height: 24px;
  padding: 5px 6px;
  margin: 6px 0;
  background: var(--white);
  color: var(--black);
  border: 2px solid;
  border-top-color: var(--shadow);
  border-left-color: var(--shadow);
  border-right-color: var(--chrome-light);
  border-bottom-color: var(--chrome-light);
  font-weight: bold;
}

.status.bad,
.error:not(:empty) {
  color: var(--white);
  background: var(--red-dark);
}

.card,
.swatch-card,
.detail,
.pill,
.palette-wrap {
  background: var(--chrome);
  border-style: solid;
  border-width: 2px;
  border-top-color: var(--chrome-light);
  border-left-color: var(--chrome-light);
  border-right-color: var(--shadow);
  border-bottom-color: var(--shadow);
  border-radius: 0;
  overflow: hidden;
}

.card h2,
.palette-head h2,
.swatch-info strong,
.detail span,
.pill span {
  display: block;
  margin: 0;
  padding: 2px 5px;
  min-height: 19px;
  font-size: 12px;
  line-height: 15px;
  color: var(--white);
  background: var(--blue-dark);
  border-bottom: 1px solid var(--black);
  font-weight: bold;
  text-transform: none;
  letter-spacing: 0;
}

.detail span,
.pill span {
  margin: -6px -6px 6px;
}

.detail,
.pill { padding: 6px; }

.detail b,
.pill b,
.code,
.range-value {
  display: block;
  min-height: 24px;
  padding: 4px 5px;
  background: var(--white);
  color: var(--black);
  border: 2px solid;
  border-top-color: var(--shadow);
  border-left-color: var(--shadow);
  border-right-color: var(--chrome-light);
  border-bottom-color: var(--chrome-light);
  font-size: 12px;
  font-weight: bold;
}

.swatch-info { padding: 6px; }

.swatch {
  height: 150px;
  border-bottom: 2px solid var(--black);
}

.palette-wrap { margin-top: 6px; }

.palette-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  background: var(--chrome);
  border-bottom: 1px solid var(--black);
}

.palette-head h2 {
  border-bottom: 0;
  flex: 0 0 auto;
}

.palette-head .status {
  flex: 1 1 auto;
  margin: 4px;
  min-height: 21px;
  padding: 3px 5px;
}

.palette {
  display: grid;
  grid-template-columns: repeat(32, 1fr);
  gap: 1px;
  padding: 6px;
  background: var(--black);
}

.colour {
  aspect-ratio: 1;
  min-width: 0;
  border-radius: 0;
  outline: 1px solid rgba(255,255,255,.18);
  cursor: help;
}

.canvas-scroll {
  overflow: auto;
  max-height: 520px;
  background: var(--black);
  border-top: 1px solid var(--black);
}

canvas {
  display: block;
  max-width: 100%;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: var(--black);
}

.range-row {
  display: grid;
  grid-template-columns: 1fr 56px;
  gap: 6px;
  align-items: center;
}

.range-value {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
}

#copyButton {
  margin-top: 6px;
  min-width: 148px;
}

@media (max-width: 1000px) {
  .controls,
  .download-grid,
  .info,
  .details,
  .swatches,
  .preview-grid {
    grid-template-columns: 1fr;
  }

  .palette { grid-template-columns: repeat(16, 1fr); }
}

@media (max-width: 640px) {
  body { padding: 0; }
  main {
    min-height: 100vh;
    box-shadow: none;
    border-left: 0;
    border-right: 0;
  }
  h1 { font-size: 19px; }
  .input-row { grid-template-columns: 1fr 64px; }
}