:root {
  --ff-body: 'Ubuntu', sans-serif;
  --ff-head: 'Ubuntu Condensed', sans-serif;
  --ff-fixed: Courier;
  --c-bg: #121212;
  --c-fg: #ffca38;
  --c-border: #444;
  --c-btn: #1e1e1e;
  --c-btn-hover: #333;
  --gap-xs: .4rem;
  --gap-sm: .6rem;
  --gap: 1rem;
  --gap-lg: 2em;
  --radius: 5px;
  --shadow: 0 0 3px rgba(0,0,0,.3);
  --field-h: 2.8em;
  --accent: #ffca38;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  padding: var(--gap);
  width: 100%;
  overflow-x: hidden;
  font-family: var(--ff-body);
  background: var(--c-bg);
  color: var(--c-fg);
}

h1, h2, h3 {
  font-family: var(--ff-head);
  text-align: left;
  margin-top: var(--gap-lg);
}
h1 { font-size: clamp(1.5rem, 6vw, 2rem); }
h2 { font-size: 1.25rem; }

.layout {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  width: 100%;
  max-width: 100vw;
  flex-wrap: wrap;
}

.controls {
  flex-shrink: 1;
  width: 100%;
  min-width: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: var(--gap);
}

.controls > *:first-child { margin-top: 0; }
.controls > * + * { margin-top: var(--gap); }

.right-col {
  flex: 2;
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
  min-width: 0;
  max-width: 100%;
}

.palette-box, .export-box {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: var(--gap);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: auto;
}
.palette-box > *:first-child { margin-top: 0; }

.palette {
  display: grid;
  gap: var(--gap-sm);
  margin-top: 0;
  width: 100%;
  box-sizing: border-box;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
}

.color {
  width: 100%;
  height: 60px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  position: relative;
  font: 1rem/1 var(--ff-fixed);
  color: #fff;
  text-align: center;
  text-shadow: 0 0 3px #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contrast-label {
  position: absolute;
  bottom: 5px;
  right: 5px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 0 3px;
  font-size: .8em;
  line-height: 1;
  color: #fff;
}
.contrast-label span:first-child {
  position: relative;
  top: -1px;
}
.contrast-label span { margin-right: 0 !important; }

.help-icon {
  display: inline-block;
  margin-left: var(--gap-xs);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  color: #b60000;
  font-size: 16px;
  line-height: 16px;
  text-align: center;
  cursor: pointer;
  position: relative;
}
.help-icon:hover::after, .help-icon:focus::after {
  content: attr(data-tooltip);
  position: absolute;
  top: 0;
  left: 22px;
  z-index: 10;
  background: #333;
  color: #fff;
  font-size: .9em;
  padding: 6px 8px;
  border-radius: var(--radius);
  min-width: 240px;
  max-width: 360px;
  white-space: pre-line;
  text-align: left;
}

label { display: block; margin-top: var(--gap); }
.label-block { margin-top: var(--gap); }

.label-header, .checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--gap-xs);
  font-weight: bold;
}
.label-header .help-icon,
.checkbox-label .help-icon { margin-left: 0; }
.checkbox-label input[type=checkbox] { margin-right: var(--gap-sm); }

select, input[type=number], input[type=text], input[type=range], textarea, button {
  width: 100%;
  background: var(--c-btn);
  color: var(--c-fg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-size: 1em;
  margin-top: var(--gap-xs);
}
select, input[type=number], input[type=text], textarea, button { padding: .5em; }
input[type=number] {
  -moz-appearance: textfield;
}
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type=range] { padding: 0; }
input[type=text], input[type=number], select {
  height: var(--field-h);
  padding: 0 .6em;
  line-height: calc(var(--field-h) - 1.2em);
}

button {
  position: relative;
  padding: .8em .9em;
  font-weight: bold;
  letter-spacing: .04em;
  border: 2px solid var(--c-fg);
  background: linear-gradient(#272727, #1c1c1c);
  box-shadow: 0 2px 4px rgba(0,0,0,.4);
}
button:hover {
  border-color: #ffd96b;
  background: linear-gradient(#353535, #232323);
}
button:active {
  box-shadow: none;
  transform: translateY(1px);
}
button::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(rgba(255,255,255,.08), transparent 40%);
}
.gen-palette { margin-top: var(--gap-lg); }

.double-color {
  display: flex;
  column-gap: var(--gap);
  justify-content: space-between;
  margin-top: var(--gap);
}
.double-color > div { flex: 1; }
.double-color .label-block { margin-top: 0; }

.color-display {
  margin-top: var(--gap-xs);
  height: 48px;
  border: 1px solid var(--c-border);
  border-radius: calc(var(--radius) + 1px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font: .9em/1 var(--ff-fixed);
  font-weight: bold;
  color: #fff;
  text-shadow: 0 0 3px #666;
  user-select: none;
}
.color-display span {
  display: block;
  line-height: 48px;
  text-align: center;
  position: relative;
  top: 2px;
}

.color-picker { position: relative; }
.color-picker input[type=color] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.slider-header .left {
  display: flex;
  align-items: center;
  gap: var(--gap-xs);
}
.slider-header .right {
  min-width: 3em;
  text-align: right;
}
.slider-value {
  font-size: .9em;
  color: var(--c-fg);
}

.logo {
  display: flex;
  align-items: flex-end;
  height: 20px;
}

#contrast-legend {
  margin-top: var(--gap-sm);
  font-size: .9em;
  color: #ccc;
}

#contrast-legend .contrast-label {
  position: static;
  display: inline-flex;
  align-items: center;
  gap: .5em;
  margin-right: .5em;
}

#contrast-legend .contrast-label .circle {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid #fff;
}

/* Färger */
.contrast-green .circle  { background: #5baa1d; }
.contrast-orange .circle { background: orange; }
.contrast-red .circle    { background: red; }

#exportArea {
  font-family: var(--ff-fixed);
  min-height: 6em;
  overflow: hidden;
  resize: vertical;
  margin-top: var(--gap);
}
.export-box button { margin-top: var(--gap-sm); }

@media (min-width: 900px) {
  .layout {
    flex-direction: row;
    align-items: flex-start;
  }
  .controls {
    flex: 1;
    max-width: 600px; /* samma som i small layout */
    min-width: 300px;
  }
  .right-col {
    flex: 2;
  }
}

@media (max-width: 600px) {
  body { font-size: 1.125rem; }
  .controls { width: 100%; }
  .color { font-size: 1rem; }
  h1 { font-size: 1.5rem; }
}

body.light {
  --c-bg: #fafafa;
  --c-fg: #333;
  --c-border: #bbb;
  --c-btn: #f0f0f0;
  --c-btn-hover: #e4e4e4;
}
body.light .color,
body.light .color-display {
  color: #000;
  text-shadow: none;
}
body.light button {
  border-color: var(--c-fg);
  background: linear-gradient(#ffffff, #e5e5e5);
}
body.light button:hover {
  border-color: #666;
  background: linear-gradient(#f3f3f3, #e0e0e0);
}
body.light .help-icon {
  color: #fff;
  background: #b60000;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--gap);
}

.theme-switch {
  display: flex;
  gap: var(--gap-xs);
}
.theme-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.theme-switch .icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  color: #888;
}
input:checked + .icon {
  color: var(--accent);
  box-shadow: none;
}