/* ─── Theme Variables ─────────────────────────────────────────────────────── */

:root {
  --bg: #1a1a1a;
  --panel: #222;
  --border: #363636;
  --text: #d8d8d8;
  --dim: #909090;
  --accent: #e8a020;
  --accent-bg: rgba(232, 160, 32, 0.13);
  --canvas-bg: #161616;
  --red: #d05555;
  --blue: #4a9de0;
  --green: #5db55d;
}

/* ─── Reset ───────────────────────────────────────────────────────────────── */

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

html,
body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "Consolas", "Courier New", monospace;
  font-size: 14px;
}

/* ─── Toolbar ─────────────────────────────────────────────────────────────── */

#toolbar {
  height: 38px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 10px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  overflow: hidden;
}

.tb-label {
  color: var(--accent);
  font-family: "Barlow", "Barlow Semi Condensed", sans-serif;
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.2px;
  text-transform: none;
  white-space: nowrap;
  margin-right: 2px;
}

.tb-spacer {
  flex: 1;
  min-width: 12px;
}

.tb-sep {
  width: 1px;
  height: 22px;
  background: var(--border);
  margin: 0 2px;
  flex-shrink: 0;
}

.tb-btn {
  padding: 3px 9px;
  border: 1px solid #484848;
  border-radius: 2px;
  background: #2a2a2a;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}
.tb-btn:hover {
  border-color: #777;
  background: #333;
}
.tb-btn.active {
  background: var(--accent-bg);
  border-color: var(--accent);
  color: #fff;
}
.tb-btn.snap-on {
  background: rgba(74, 157, 224, 0.18);
  border-color: var(--blue);
  color: #fff;
}
.tb-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.tb-key {
  font-size: 10px;
  color: var(--dim);
  margin-left: 3px;
}

#name-in {
  background: #111;
  border: 1px solid #444;
  color: var(--accent);
  font-family: inherit;
  font-size: 13px;
  padding: 2px 7px;
  width: 128px;
  outline: none;
  border-radius: 2px;
  flex-shrink: 0;
}
#name-in:focus {
  border-color: var(--accent);
}

#snap-inc {
  background: #111;
  border: 1px solid #444;
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  padding: 2px 4px;
  outline: none;
  border-radius: 2px;
  flex-shrink: 0;
  cursor: pointer;
}

/* ─── Main Layout ─────────────────────────────────────────────────────────── */

#main {
  display: flex;
  height: calc(100vh - 38px);
  overflow: hidden;
  position: relative;
}

/* ─── Left Panel (Layers) ─────────────────────────────────────────────────── */

#left {
  width: 244px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.pane-head {
  padding: 5px 10px;
  font-size: 10px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#layer-list {
  flex: 1;
  overflow-y: auto;
}

.ly {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 8px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.025);
}
.ly:hover {
  background: rgba(255, 255, 255, 0.04);
}
.ly.active {
  background: var(--accent-bg);
}
.ly.active .ly-name {
  color: var(--accent);
}

.ly-vis {
  width: 14px;
  height: 14px;
  border: 1px solid #555;
  border-radius: 1px;
  flex-shrink: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
}
.ly-vis.on:after {
  content: "●";
  color: #999;
}

.ly-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.ly-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

.ly-del {
  color: #555;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 0 1px;
}
.ly-del:hover {
  color: var(--red);
}

.add-btn {
  margin: 5px 8px;
  padding: 5px;
  border: 1px dashed #3a3a3a;
  border-radius: 2px;
  background: transparent;
  color: var(--dim);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  text-align: center;
  flex-shrink: 0;
}
.add-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

#ref-layer {
  border-top: 1px solid var(--border);
}
.ref-ly {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 8px;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.025);
}
.ref-ly:hover {
  background: rgba(255, 255, 255, 0.04);
}
.ref-arrow {
  font-size: 8px;
  color: var(--dim);
  flex-shrink: 0;
  width: 8px;
}
.ref-import-btn {
  width: 22px;
  height: 20px;
  padding: 0;
  border: 1px solid #444;
  background: transparent;
  color: var(--dim);
  cursor: pointer;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.ref-import-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
#ref-controls {
  padding: 6px 8px 4px;
}
#ref-controls label {
  cursor: help;
  user-select: none;
  text-align: right;
}
.ref-ctrl-row {
  display: grid;
  align-items: center;
  gap: 4px;
  margin-bottom: 5px;
  font-size: 11px;
  color: var(--dim);
}
.ref-ctrl-row.slider {
  grid-template-columns: 56px 1fr 59px;
}
.ref-ctrl-row.flip {
  grid-template-columns: 56px auto auto;
}
.ref-flip-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: #1e1e1e;
  border: 1px solid #3a3a3a;
  color: var(--dim);
  font-family: inherit;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 2px;
  cursor: pointer;
  white-space: nowrap;
}
.ref-flip-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.ref-flip-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(100, 160, 255, 0.1);
}
#ref-controls input[type="number"] {
  background: #111;
  border: 1px solid #444;
  color: var(--text);
  font-family: inherit;
  font-size: 11px;
  padding: 2px 4px;
  border-radius: 2px;
  outline: none;
  min-width: 0;
}
#ref-controls input[type="number"]:focus {
  border-color: var(--accent);
}
#ref-controls input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
  min-width: 0;
  height: 16px;
}
#ref-controls input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  background: #3a3a3a;
  border-radius: 1px;
}
#ref-controls input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 4px;
  height: 14px;
  margin-top: -6px;
  background: var(--accent);
  border-radius: 1px;
  cursor: pointer;
}
#ref-controls input[type="range"]::-moz-range-track {
  height: 2px;
  background: #3a3a3a;
  border-radius: 1px;
}
#ref-controls input[type="range"]::-moz-range-thumb {
  border: none;
  width: 4px;
  height: 14px;
  background: var(--accent);
  border-radius: 1px;
  cursor: pointer;
}

#shortcuts {
  padding: 8px 10px;
  border-top: 1px solid var(--border);
  color: var(--dim);
  font-size: 11px;
  line-height: 1.9;
  flex-shrink: 0;
  display: none;
}
#shortcuts b {
  color: #bbb;
}

#help-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 10px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  cursor: pointer;
  color: var(--dim);
  font-size: 11px;
  font-family: inherit;
  background: transparent;
  border-left: none;
  border-right: none;
  border-bottom: none;
  width: 100%;
  text-align: center;
}
#help-toggle:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}
#help-toggle.open {
  color: var(--accent);
}

/* ─── Canvas ──────────────────────────────────────────────────────────────── */

#canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--canvas-bg);
}

#canvas {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
}

#coord {
  position: absolute;
  bottom: 7px;
  left: 9px;
  font-size: 11px;
  color: var(--dim);
  pointer-events: none;
}

/* ─── Right Panel (Preview / JSON) ───────────────────────────────────────── */

#right {
  width: auto;
  flex-shrink: 0;
  display: flex;
  flex-direction: row-reverse;
  background: var(--panel);
  border-left: 1px solid var(--border);
}

#right-rail {
  width: 26px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
}

.rail-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 10px;
  color: var(--dim);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  user-select: none;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.rail-tab:last-child {
  border-bottom: none;
}
.rail-tab:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}
.rail-tab.open {
  color: var(--accent);
}

#right-content {
  width: 218px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.18s ease;
}
#right-content.hidden {
  width: 0;
}

#preview-body {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

#preview {
  width: 100%;
  height: 84px;
  display: block;
  background: #2a2a2a;
  border: 1px solid var(--border);
  border-radius: 2px;
  margin-top: 5px;
}

#json-body {
  flex: 1;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
}

.bake-row {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 6px;
}

#bake-res {
  width: 50px;
  background: #111;
  border: 1px solid #363636;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  padding: 3px 6px;
  outline: none;
  border-radius: 2px;
  text-align: right;
}

.act-btn {
  flex: 1;
  padding: 4px 7px;
  background: #1e1e1e;
  border: 1px solid #3a3a3a;
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  cursor: pointer;
  border-radius: 2px;
  text-align: center;
}
.act-btn:hover {
  border-color: #666;
}

#json-out {
  flex: 1;
  min-height: 100px;
  background: #111;
  border: 1px solid #363636;
  color: #7aba7a;
  font-family: inherit;
  font-size: 11px;
  padding: 6px;
  resize: none;
  outline: none;
  border-radius: 2px;
  overflow: auto;
}

/* ─── About Modal ─────────────────────────────────────────────────────────── */

#about-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
#about-overlay.open {
  display: flex;
}

#about-panel {
  background: #222;
  border: 1px solid #484848;
  border-radius: 4px;
  width: min(340px, 88vw);
  padding: 24px 28px;
  position: relative;
  font-size: 13px;
  line-height: 1.7;
}

#about-panel h2 {
  font-family: "Barlow", "Barlow Semi Condensed", sans-serif;
  font-weight: 900;
  font-size: 15px;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 0.2px;
}
#about-panel p {
  color: var(--dim);
  margin-bottom: 6px;
}
#about-panel a {
  color: var(--text);
  text-decoration: none;
}
#about-panel a:hover {
  color: var(--accent);
}

#about-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: transparent;
  border: none;
  color: var(--dim);
  font-size: 18px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
}
#about-close:hover {
  color: #fff;
}

/* ─── Presets Modal ───────────────────────────────────────────────────────── */

#presets-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
#presets-overlay.open {
  display: flex;
}

#presets-panel {
  background: #222;
  border: 1px solid #484848;
  border-radius: 4px;
  width: min(780px, 90vw);
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#presets-header {
  padding: 10px 14px;
  border-bottom: 1px solid #363636;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
#presets-header span {
  color: var(--accent);
  font-weight: bold;
  font-size: 14px;
}

#presets-close {
  background: transparent;
  border: 1px solid #484848;
  color: var(--dim);
  font-family: inherit;
  font-size: 16px;
  cursor: pointer;
  padding: 1px 8px;
  border-radius: 2px;
}
#presets-close:hover {
  border-color: #777;
  color: #fff;
}

#presets-grid {
  padding: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(128px, 1fr));
  gap: 10px;
  overflow-y: auto;
}

.preset-cell {
  border: 1px solid #363636;
  border-radius: 3px;
  cursor: pointer;
  padding: 6px;
  text-align: center;
  background: #1a1a1a;
}
.preset-cell:hover {
  border-color: var(--accent);
  background: rgba(232, 160, 32, 0.07);
}
.preset-cell canvas {
  display: block;
  width: 100%;
  border-radius: 2px;
}

.preset-name {
  font-size: 11px;
  color: var(--dim);
  margin-top: 5px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}