:root {
  --bg: #070b12;
  --bg-2: #0c121c;
  --panel: #101826;
  --panel-2: #162033;
  --inset: #0a1018;
  --line: #24344c;
  --line-hot: #3a5578;
  --text: #e7f1ff;
  --muted: #7f93b0;
  --red: #ff2a3c;
  --red-dim: #a31422;
  --cyan: #2ee6ff;
  --cyan-dim: #127a8a;
  --gold: #ffd23c;
  --good: #3ee07a;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  --font: "Segoe UI", "Trebuchet MS", sans-serif;
  --mono: "Cascadia Mono", "Consolas", "Segoe UI Mono", monospace;
  --cursor-hover: url("../assets/ui/cursor-hover.png") 2 2, auto;
  --cursor-select: url("../assets/ui/cursor-select.png") 2 2, pointer;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  overflow: hidden;
  cursor: var(--cursor-hover);
  user-select: none;
}

input, textarea {
  user-select: text;
}

button, a, input, select, textarea, label, [role="button"] {
  cursor: var(--cursor-hover);
}

button:active, .tool:active, .tile-btn:active, .icon-btn:active {
  cursor: var(--cursor-select);
}

img { image-rendering: pixelated; }

.app {
  display: grid;
  grid-template-rows: 58px minmax(0, 1fr) 28px;
  grid-template-columns: 228px minmax(0, 1fr) 292px;
  height: 100vh;
  background:
    radial-gradient(1200px 500px at 70% -10%, rgba(255, 42, 60, 0.07), transparent 50%),
    radial-gradient(900px 400px at 0% 100%, rgba(46, 230, 255, 0.06), transparent 50%),
    var(--bg);
}

.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 12px;
  background: linear-gradient(180deg, #141d2c, #0e1622);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
}

.brand img.title {
  height: 36px;
  width: auto;
}

.badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(255, 210, 60, 0.45);
  padding: 3px 6px;
  background: rgba(255, 210, 60, 0.08);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.icon-btn, .text-btn, .tool, .tile-btn, .mini, .chip {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 6px;
  image-rendering: pixelated;
}

.icon-btn {
  width: 40px;
  height: 40px;
  padding: 4px;
  display: grid;
  place-items: center;
}

.icon-btn img {
  width: 28px;
  height: 28px;
}

.icon-btn:hover, .text-btn:hover, .tool:hover, .tile-btn:hover, .mini:hover, .chip:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(46, 230, 255, 0.2);
}

.icon-btn.active, .tool.active, .tile-btn.active, .chip.active {
  border-color: var(--cyan);
  background: rgba(46, 230, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(46, 230, 255, 0.35);
}

.text-btn, .mini {
  height: 32px;
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.text-btn.danger { border-color: var(--red-dim); color: #ffb3ba; }
.text-btn.good { border-color: #1c7a44; color: var(--good); }
.text-btn.play {
  height: 40px;
  padding: 0 14px 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(180deg, #16323a, #10242c);
}

.text-btn.play img { width: 28px; height: 28px; }

.level-name {
  height: 32px;
  width: 220px;
  background: var(--inset);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0 10px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 12px;
}

.level-name:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--cyan);
}

.palette, .inspector {
  background: var(--panel);
  border-right: 1px solid var(--line);
  overflow: auto;
  padding: 12px;
}

.inspector {
  border-right: 0;
  border-left: 1px solid var(--line);
}

.section-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 4px 0 8px;
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.tile-btn, .tool {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 72px;
  padding: 8px 6px;
}

.tile-btn img, .tool img {
  width: 32px;
  height: 32px;
}

.invis-icon {
  opacity: 0.42;
  filter: contrast(1.1);
}

.tile-btn[data-tile="ispike"] span {
  color: #c9a0ff;
}

.tile-btn span, .tool span, .chip span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.tools {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 14px;
}

.tool {
  min-height: 58px;
  padding: 6px 4px;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  margin: 8px 0 0;
}

.k {
  font-family: var(--mono);
  font-size: 10px;
  border: 1px solid var(--line);
  background: var(--inset);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--cyan);
}

.viewport-wrap {
  position: relative;
  min-width: 0;
  min-height: 0;
  background: #05080d;
}

#view {
  display: block;
  width: 100%;
  height: 100%;
  cursor: var(--cursor-hover);
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  touch-action: none;
}

#view.painting, #view.selecting { cursor: var(--cursor-select); }

.play-hud, .win-card, .modal {
  position: absolute;
  pointer-events: none;
}

.play-hud {
  top: 10px;
  left: 10px;
  right: 10px;
  display: none;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.play-hud.visible { display: flex; }

.hud-chip {
  pointer-events: auto;
  background: rgba(10, 16, 24, 0.82);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 12px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.overlay-card {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(4, 8, 12, 0.55);
}

.overlay-card.visible { display: grid; }

.card {
  pointer-events: auto;
  min-width: 320px;
  background: var(--panel);
  border: 1px solid var(--cyan-dim);
  box-shadow: var(--shadow);
  padding: 18px 20px 16px;
  border-radius: 10px;
  text-align: center;
}

.card h2 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: 0.08em;
}

.card p { margin: 0 0 14px; color: var(--muted); }

.card-actions { display: flex; gap: 8px; justify-content: center; }

.inspector label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 10px 0 4px;
}

.row {
  display: flex;
  gap: 6px;
  align-items: center;
}

.grow { flex: 1; }

input[type="number"], input[type="text"], select {
  height: 30px;
  width: 100%;
  background: var(--inset);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 0 8px;
  font-family: var(--mono);
  font-size: 12px;
}

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

.stat {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  padding: 3px 0;
}

.stat b { color: var(--text); font-weight: 600; }

.minimap-wrap {
  border: 1px solid var(--line);
  background: #05080d;
  border-radius: 6px;
  overflow: hidden;
  margin-top: 8px;
}

#minimap {
  display: block;
  width: 100%;
  height: 92px;
  cursor: var(--cursor-select);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

#prefabs {
  max-height: 280px;
  overflow: auto;
  padding-right: 2px;
}

#prefabs .chip {
  padding: 5px 7px;
}

.color-chip {
  width: 22px;
  height: 22px;
  min-width: 22px;
  padding: 0;
  border-radius: 4px;
}

.color-chip.active {
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--cyan);
}

.chip {
  padding: 6px 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.skins {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}

.skin-btn {
  height: 46px;
  display: grid;
  place-items: center;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0;
}

.skin-btn img { width: 32px; height: 32px; }

.skin-btn.active {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(46, 230, 255, 0.35);
}

.status {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 12px;
  background: #0a111a;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}

.status .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}

.status .dot.saved { background: var(--good); }

.modal-root {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(4, 8, 14, 0.72);
  z-index: 20;
}

.modal-root.visible { display: grid; }

.modal {
  width: min(720px, calc(100vw - 32px));
  max-height: calc(100vh - 40px);
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line-hot);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 18px 20px;
  pointer-events: auto;
  display: flex;
  flex-direction: column;
}

.modal h2 { flex: 0 0 auto; }
.modal .help-grid, .modal .library-list {
  overflow: auto;
  flex: 1 1 auto;
  min-height: 0;
}
.modal > .row { flex: 0 0 auto; margin-top: 12px; }
.modal > .hint { flex: 0 0 auto; }

.modal h2 {
  margin: 0 0 12px;
  font-size: 18px;
  letter-spacing: 0.06em;
}

.help-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 4px 12px;
  font-size: 12px;
}

.help-grid b { font-family: var(--mono); color: var(--cyan); font-weight: 600; }

.library-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 360px;
  overflow: auto;
}

.lib-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--inset);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: left;
  color: var(--text);
  width: 100%;
}

.lib-item:hover { border-color: var(--cyan); }

.lib-item .meta { margin-left: auto; color: var(--muted); font-family: var(--mono); font-size: 11px; }

.bind-row {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.bind-row button { height: 30px; }

.listening { border-color: var(--gold) !important; color: var(--gold); }

hr.sep {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 14px 0;
}

.rot-preview {
  display: flex;
  gap: 6px;
}

.rot-preview button {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  padding: 0;
}

.rot-preview img { width: 32px; height: 32px; }

.app.playing .palette,
.app.playing .inspector { filter: saturate(0.6); }

.app.playing .tile-btn,
.app.playing .tool { pointer-events: none; opacity: 0.55; }

.hidden { display: none !important; }

button:disabled {
  opacity: 0.45;
  pointer-events: none;
}

#toasts {
  position: fixed;
  right: 14px;
  bottom: 38px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 60;
  pointer-events: none;
}

.toast {
  background: rgba(10, 16, 24, 0.94);
  border: 1px solid var(--line-hot);
  border-left: 3px solid var(--cyan);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  padding: 9px 14px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  max-width: 340px;
}

.toast.show { opacity: 1; transform: translateY(0); }
.toast.good { border-left-color: var(--good); }
.toast.bad { border-left-color: var(--red); }