:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2330;
  --border: #30363d;
  --text: #c9d1d9;
  --muted: #8b949e;
  --accent: #1f6feb;
  --accent-2: #238636;
  --icon: 18px; /* toolbar icon size; body.icon-s switches to 16px */
}
body.icon-s { --icon: 16px; }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.45 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
body { display: flex; flex-direction: column; }

#topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
#topbar .spacer { flex: 1; }
.muted { color: var(--muted); }

button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button.ghost { background: transparent; }
#btn-send { background: var(--accent); border-color: var(--accent); }

/* Small monochrome icon-only buttons (topbar gear etc.). */
button.icon-only {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 4px 6px; color: var(--muted);
}
button.icon-only:hover { color: var(--text); }
button.icon-only svg { width: 16px; height: 16px; }

/* Consistent text-glyph action buttons (⧉ ↻ ⇋ ✕ ▲ ▼ ⏮ ▶ ⏭ …):
   same size, muted colour, hover state. */
button.icon-glyph, .spot-list button.tiny {
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
}
button.icon-glyph:hover, .spot-list button.tiny:hover { color: var(--text); border-color: var(--accent); }

/* ---- settings popover ---------------------------------------------------- */
#settings-pop {
  position: fixed;
  top: 42px;
  right: 10px;
  z-index: 50;
  width: 280px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 28px #000a;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
#settings-pop[hidden] { display: none; }
#settings-pop h3 {
  margin: 4px 0 2px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
}
#settings-pop label { display: flex; align-items: center; gap: 6px; cursor: pointer; }
#settings-pop label.row { justify-content: space-between; }
#settings-pop input[type="number"] { width: 5em; }
#settings-pop input[type="color"] { width: 42px; height: 22px; padding: 0; }
#settings-pop button { margin-top: 6px; }

/* ---- options bar (Photoshop-style tool context bar) ----------------------- */
#options-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 10px;
  min-height: 34px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  white-space: nowrap;
}
#options-bar .ob-name {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  min-width: 5.5em;
}
#options-bar .ob-group { display: inline-flex; align-items: center; gap: 10px; }
#options-bar .ob-group[hidden] { display: none; }
#options-bar fieldset.ob-group {
  border: none;
  border-left: 1px solid var(--border);
  border-radius: 0;
  margin: 0;
  padding: 0 0 0 12px;
}
#options-bar label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 0;
  color: var(--muted);
}
#options-bar input[type="number"] { width: 4.5em; }
#options-bar input[type="text"] { width: 9em; }
#options-bar input[type="color"] { width: 34px; height: 22px; padding: 0; }
#options-bar button { padding: 3px 9px; }
#options-bar .path-actions { display: inline-flex; gap: 6px; margin: 0; }
#options-bar .path-actions[hidden] { display: none; }
#options-bar .hint { min-height: 0; overflow: hidden; text-overflow: ellipsis; }
#tool-hint { flex: 1; min-width: 0; }

#layout {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
}

/* ---- slim vertical tool strip --------------------------------------------- */
#tools {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 6px 0;
  overflow-y: auto;
}
#tool-icons { display: flex; flex-direction: column; align-items: center; gap: 4px; }
#tool-icons .tool {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
#tool-icons .tool svg { width: var(--icon); height: var(--icon); }
#tool-icons .tool:hover { background: var(--panel-2); color: var(--text); border-color: var(--border); }
#tool-icons .tool.on { background: #1f6feb22; color: var(--text); border-color: var(--accent); }
#tool-icons .tool-sep { width: 24px; border: none; border-top: 1px solid var(--border); margin: 3px 0; }

/* ---- right panel ----------------------------------------------------------- */
#assistant {
  position: relative;
  width: 320px;
  min-width: 240px;
  max-width: 60vw;
  background: var(--panel);
  border-left: 1px solid var(--border);
  padding: 10px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
#rp-resizer {
  /* NOTE: #assistant is overflow-y:auto, which clips anything left of its
     border — keep the handle fully inside the panel. */
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  cursor: col-resize;
  z-index: 5;
  user-select: none;
}
#rp-resizer:hover { background: #1f6feb44; }

/* Settings-driven panel visibility. */
body.hide-right #assistant { display: none; }
body.hide-timeline #timeline { display: none !important; }
body.hide-film #color-film { display: none !important; }

h2 { font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin: 14px 0 6px; }
h2:first-child { margin-top: 0; }

.toolgroup label { display: block; padding: 3px 0; cursor: pointer; }
.hint { font-size: 12px; color: var(--muted); min-height: 1.4em; }

fieldset {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin: 8px 0;
  padding: 6px 8px;
}
fieldset[hidden] { display: none; }
legend { color: var(--muted); padding: 0 4px; }
fieldset label { display: block; margin: 4px 0; }
input[type="number"], textarea, input[type="text"] {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 4px 6px;
}
textarea { width: 100%; }

.path-actions { display: flex; gap: 6px; margin: 8px 0; }
.path-actions[hidden] { display: none; }

.spot-list { list-style: none; margin: 0; padding: 0; }
.spot-list li { padding: 5px 6px; border: 1px solid var(--border); border-radius: 6px; margin-bottom: 5px; display: flex; align-items: center; gap: 6px; }
.spot-list .swatch { width: 10px; height: 10px; border-radius: 2px; background: var(--accent); }
.spot-list .grow { flex: 1; }
.spot-list button { padding: 1px 6px; font-size: 11px; }

/* canvas */
#canvas-pane { display: flex; flex-direction: column; min-width: 0; }
#canvas-wrap {
  flex: 1;
  position: relative;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-conic-gradient(#161b22 0% 25%, #11151c 0% 50%) 50% / 24px 24px;
}
#empty-state { position: absolute; pointer-events: none; }
#svg-host { max-width: 95%; max-height: 95%; }
#svg-host svg { max-width: 100%; max-height: 80vh; height: auto; background: #fff; border: 1px solid var(--border); border-radius: 4px; touch-action: none; }

/* overlay marks live inside the SVG (user space) */
.spot-rect { fill: rgba(31,111,235,0.18); stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; }
.spot-label { fill: var(--accent); font: 12px sans-serif; }
.marquee { fill: rgba(255,255,255,0.12); stroke: #fff; stroke-dasharray: 4 3; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.draw-path { fill: none; stroke: var(--accent-2); stroke-width: 2; vector-effect: non-scaling-stroke; }
.draw-pt { fill: var(--accent-2); }

#statusbar { padding: 6px 12px; border-top: 1px solid var(--border); background: var(--panel); color: var(--muted); }

/* assistant chat */
.chat-log { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 8px; padding: 4px 0; }
.msg { border: 1px solid var(--border); border-radius: 8px; padding: 7px 9px; white-space: pre-wrap; }
.msg.user { background: var(--panel-2); }
.msg.assistant { background: #12161d; }
.msg.assistant.stub { border-style: dashed; }
.msg .role { font-size: 11px; color: var(--muted); margin-bottom: 3px; }
.chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 5px; }
.chip { font-size: 11px; background: var(--accent); color: #fff; border-radius: 10px; padding: 1px 8px; }

.attach-tray { border-top: 1px solid var(--border); padding-top: 6px; margin-top: 6px; }
#attach-chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.attach-tray .chip { cursor: pointer; background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
.attach-tray .chip.on { background: var(--accent); color: #fff; border-color: var(--accent); }
.chat-input { display: flex; gap: 6px; margin-top: 6px; }
.chat-input textarea { flex: 1; resize: vertical; }

/* assistant auth / sign-in */
#assistant h2 { display: flex; align-items: center; gap: 6px; }
.auth-pill { font-size: 10px; font-weight: normal; letter-spacing: 0; text-transform: none; }
.auth-pill.ok { color: var(--accent-2); }
.auth-gear { margin-left: auto; padding: 1px 7px; font-size: 12px; }
.signin-box { border: 1px solid var(--border); border-radius: 8px; padding: 8px; margin-bottom: 8px; display: flex; flex-direction: column; gap: 6px; }
.signin-box[hidden] { display: none; }
.signin-box code { background: var(--bg); padding: 0 3px; border-radius: 3px; }
.signin-box input { background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 5px; padding: 4px 6px; }
.signin-actions { display: flex; gap: 6px; }
.chat-status { font-size: 11px; padding: 2px 0; min-height: 1.2em; }
.chat-status[hidden] { display: none; }