/* ---------------------------------------------------------
   Micro Graphic Generator — UI
   --------------------------------------------------------- */

:root {
  --bg: #0d0d10;
  --panel: #121216;
  --line: #26262c;
  --text: #c9c9cc;
  --text-dim: #6b6b72;
  --accent: #9fef00;
  --font: 'IBM Plex Mono', 'SF Mono', Menlo, Consolas, monospace;
}

/* UI chrome stays terminal green regardless of the design's color scheme —
   the chosen scheme/bg/ink only affect the canvas, never the control panel. */

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ---- top bar ---- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 46px;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.brand { display: flex; align-items: center; gap: 10px; }

.brand-banana {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.brand-name { font-family: Arial, Helvetica, sans-serif; font-weight: 700; letter-spacing: 0.3px; font-size: 13px; color: var(--text); }
.brand-ver  { letter-spacing: 1px; font-size: 10px; color: var(--text-dim); }

.topbar-meta {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--text-dim);
}

/* ---- layout ---- */

.app {
  display: flex;
  flex-direction: row-reverse;
  flex: 1;
  min-height: 0;
}

.panel {
  width: 280px;
  flex-shrink: 0;
  border-left: 1px solid var(--line);
  background: var(--panel);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  overflow-y: auto;
}

.divider {
  width: 5px;
  flex-shrink: 0;
  cursor: col-resize;
  background: transparent;
  border-left: 1px solid var(--line);
}

.divider:hover,
body.resizing .divider { border-left-color: var(--accent); }

body.resizing { cursor: col-resize; user-select: none; }

.stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  min-width: 0;
  overflow: auto;
}

.stage svg {
  max-width: 100%;
  max-height: 100%;
  height: auto;
  box-shadow: 0 0 0 1px var(--line), 0 20px 60px rgba(0,0,0,.5);
}

/* ---- controls ---- */

.ctrl { display: flex; flex-direction: column; gap: 8px; }

.ctrl-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
}

.ctrl-label output { color: var(--accent); }

.seed-row { display: flex; gap: 6px; }

input[type="text"] {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font);
  font-size: 12px;
  letter-spacing: 1px;
  padding: 8px 10px;
  outline: none;
  min-width: 0;
}

input[type="text"]:focus { border-color: var(--accent); }

select {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 8px 10px;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
                    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 16px) 50%, calc(100% - 11px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}

select:focus { border-color: var(--accent); }

textarea {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 1px;
  line-height: 1.6;
  padding: 8px 10px;
  outline: none;
  resize: vertical;
  min-height: 54px;
}

textarea:focus { border-color: var(--accent); }
textarea::placeholder { color: var(--text-dim); opacity: .6; }

input[type="color"] {
  width: 26px; height: 26px;
  padding: 0;
  border: 1px solid var(--line);
  background: #000;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

input[type="color"]::-webkit-color-swatch-wrapper { padding: 5px; }
input[type="color"]::-webkit-color-swatch { border: none; }

html[data-theme="custom"] input[type="color"] { border-color: var(--accent); }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 12px;
  outline: none;
  /* the 2px line lives on the input itself so JS can paint a progress fill */
  background: linear-gradient(90deg, var(--line) 0%, var(--line) 100%);
  background-size: 100% 2px;
  background-position: center;
  background-repeat: no-repeat;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  background: transparent;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px; height: 12px;
  background: var(--accent);
  cursor: pointer;
  margin-top: -5px; /* center the 12px thumb on the 2px track */
}

input[type="range"]::-moz-range-track {
  height: 2px;
  background: transparent;
}

input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px;
  background: var(--accent);
  border: none;
  border-radius: 0;
  cursor: pointer;
}

.orient-row { display: flex; gap: 8px; }

.hidden { display: none !important; }

.grid-picker {
  display: grid;
  grid-template-columns: repeat(3, 26px);
  gap: 4px;
}

.grid-cell {
  width: 26px; height: 26px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
}

.grid-cell:hover { border-color: var(--text-dim); }

.grid-cell.on {
  background: var(--accent);
  border-color: var(--accent);
}

.orient-btn {
  flex: 1;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 9px;
  letter-spacing: 1.5px;
  padding: 6px 4px;
  cursor: pointer;
}

.orient-btn:hover { color: var(--text); }

.orient-btn.active {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- themes ---- */

.themes { display: flex; gap: 8px; }

.theme-btn {
  width: 26px; height: 26px;
  border: 1px solid var(--line);
  background: #000;
  cursor: pointer;
  position: relative;
}

.theme-btn::after {
  content: '';
  position: absolute;
  inset: 7px;
}

.theme-btn[data-theme="white"]::after { background: #f4f4f2; }
.theme-btn[data-theme="green"]::after { background: #9fef00; }
.theme-btn[data-theme="amber"]::after { background: #ffb000; }
.theme-btn[data-theme="cyan"]::after  { background: #3de8ff; }
.theme-btn[data-theme="red"]::after   { background: #ff4130; }

.theme-btn.active { border-color: var(--accent); }

/* ---- buttons ---- */

.btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  letter-spacing: 2px;
  padding: 9px 12px;
  cursor: pointer;
  transition: border-color .15s, color .15s;
}

.btn:hover { border-color: var(--accent); color: var(--accent); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #0a0a0c;
}

.btn-primary:hover { color: #0a0a0c; opacity: .85; }

.btn-icon { flex-shrink: 0; padding: 8px 11px; font-size: 13px; }

.btn-file {
  flex: 1;
  text-align: center;
  display: block;
}

.img-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.img-list:empty { display: none; }

.img-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  border: 1px solid var(--line);
  font-size: 9px;
  letter-spacing: 1px;
  color: var(--text-dim);
}

.img-item img {
  width: 18px;
  height: 18px;
  object-fit: cover;
  flex-shrink: 0;
  filter: grayscale(1);
}

.img-item span {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.img-item button {
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
}

.img-item button:hover { color: var(--accent); }

.img-item .img-name { flex: 1; }

.img-item .img-mode {
  flex-shrink: 0;
  background: var(--bg);
  color: var(--text-dim);
  border: 1px solid var(--line);
  border-radius: 0;
  font-family: var(--font);
  font-size: 8px;
  letter-spacing: 1px;
  padding: 2px 4px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}
.img-item .img-mode:focus { border-color: var(--accent); outline: none; }

.actions { gap: 8px; }
.export-row { display: flex; gap: 8px; }
.export-row .btn { flex: 1; }

.check-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
}

.check-row input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 12px; height: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  cursor: pointer;
  flex-shrink: 0;
}

.check-row input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.check-row:hover { color: var(--text); }

/* ---- module toggle panel ---- */

.mod-details summary {
  cursor: pointer;
  list-style: none;
}

.mod-details summary::after { content: ' +'; color: var(--accent); }
.mod-details[open] summary::after { content: ' −'; }
.mod-details summary::-webkit-details-marker { display: none; }

#module-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-top: 10px;
  max-height: 260px;
  overflow-y: auto;
  padding-right: 4px;
}

.mod-group {
  margin-top: 6px;
  color: var(--text);
  font-size: 10px;
  letter-spacing: 2px;
}

.mod-group:first-child { margin-top: 0; }

.mod-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px 10px;
  padding-left: 4px;
}

.mod-item { font-size: 9px; letter-spacing: 1px; }

.panel-foot {
  margin-top: auto;
  font-size: 9px;
  line-height: 1.7;
  letter-spacing: 1px;
  color: var(--text-dim);
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

/* ---- responsive ---- */

@media (max-width: 820px) {
  body { overflow: auto; height: auto; }
  .app { flex-direction: column; }
  .panel {
    width: 100% !important;
    border-left: none;
    border-bottom: 1px solid var(--line);
  }
  .divider { display: none; }
  .stage { padding: 16px; }
}

/* ---- grouped panel (redesign): section headers + inline hints ---- */
.group-head {
  font-size: 10px;
  letter-spacing: 2.5px;
  color: var(--accent);
  text-transform: uppercase;
  margin: 20px 0 4px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.group-hint {
  font-size: 8.5px;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  text-transform: none;
  font-weight: normal;
}
.hint {
  font-size: 9px;
  line-height: 1.35;
  letter-spacing: 0.3px;
  color: var(--text-dim);
  margin: 3px 0 0;
}
.mod-details .group-hint { margin-left: 6px; }