@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #0a0a0a;
  --surface: #111;
  --border: #222;
  --accent: #d4ff00;
  --accent2: #ff3c00;
  --text: #e8e8e8;
  --muted: #555;
  --panel: #0f0f0f;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Mono', monospace;
  height: 100vh;
  display: grid;
  grid-template-rows: 48px 1fr;
  overflow: hidden;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
}

header h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 16px;
  letter-spacing: 2px;
  color: var(--accent);
}

.badge {
  font-size: 10px;
  padding: 2px 8px;
  border: 1px solid var(--accent2);
  color: var(--accent2);
  letter-spacing: 1px;
}

.step-indicator {
  margin-left: auto;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 1px;
}

.step-indicator span {
  color: var(--accent);
}

.workspace {
  display: grid;
  grid-template-columns: 1fr 320px;
  overflow: hidden;
  transition: grid-template-columns 0.3s ease;
}

.workspace.render-mode {
  grid-template-columns: 60px 1fr 320px;
}

.canvas-area {
  position: relative;
  background: #050505;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.workspace.render-mode .canvas-area {
  background: #080808;
  border-right: 1px solid var(--border);
}

.render-area {
  display: none;
  position: relative;
  background: #000;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.workspace.render-mode .render-area {
  display: flex;
}

#outputCanvasBig {
  max-width: 100%;
  max-height: 100%;
  display: block;
  cursor: grab;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

#outputCanvasBig:active { cursor: grabbing; }

.render-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1px;
  pointer-events: none;
  white-space: nowrap;
  transition: opacity 0.2s;
}
body.exporting .render-hint { opacity: 0; }

#sourceCanvas {
  max-width: 100%;
  max-height: 100%;
  cursor: crosshair;
  display: block;
}

.canvas-label {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
}

.corner-count {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 11px;
  color: var(--accent);
}

.sidebar {
  background: var(--panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

.section {
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.instruction {
  font-size: 11px;
  color: var(--text);
  line-height: 1.6;
  margin-bottom: 8px;
}

.instruction strong {
  color: var(--accent);
}

.corner-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-top: 8px;
}

.corner-item {
  font-size: 10px;
  padding: 4px 6px;
  border: 1px solid var(--border);
  color: var(--muted);
  display: flex;
  gap: 4px;
  align-items: center;
}

.corner-item.set {
  border-color: var(--accent);
  color: var(--accent);
}

.corner-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}

.corner-item.set .corner-dot {
  background: var(--accent);
}

.slider-group {
  margin-bottom: 14px;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  margin-bottom: 6px;
}

.slider-label span:last-child {
  color: var(--accent);
  font-weight: 500;
}

input[type=range] {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
  height: 2px;
}

.collapsible summary::-webkit-details-marker { display: none; }
.collapsible[open] .caret { transform: rotate(180deg); }
.caret { display: inline-block; transition: transform 0.15s; color: var(--muted); font-size: 9px; }
.summary-row { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.summary-row:focus { outline: none; }
.section-body { margin-top: 10px; }
/* Dim locked steps */
details:not([open]) .section-title { opacity: 0.5; }
details[disabled-step] summary { pointer-events: none; opacity: 0.3; }

.output-area {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.output-area .section-title {
  margin-bottom: 12px;
}

.btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 2px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  text-transform: uppercase;
  transition: all 0.15s;
  width: 100%;
  margin-top: 8px;
}

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

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

.btn.primary:hover {
  background: var(--accent);
  color: #000;
}

.btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.btn-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}

.btn-row .btn { margin-top: 0; }

.status-bar {
  padding: 8px 16px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 1px;
}

.status-bar span { color: var(--accent); }

.warning {
  font-size: 10px;
  color: var(--accent2);
  margin-top: 8px;
  line-height: 1.5;
  display: none;
}

.multi-export {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 4px;
  margin-top: 8px;
}

.angle-thumb {
  border: 1px solid var(--border);
  cursor: pointer;
  padding: 4px;
  text-align: center;
  font-size: 9px;
  color: var(--muted);
  transition: border-color 0.1s;
}

.angle-thumb:hover { border-color: var(--accent); color: var(--accent); }
.angle-thumb canvas { width: 100%; display: block; }

/* overlay dot on source canvas */
.dot-overlay {
  position: absolute;
  pointer-events: none;
}