:root {
  color-scheme: light;
  --bg: #f4f6f9;
  --panel-bg: #ffffff;
  --surface: #ffffff;        /* buttons, inputs, cards, modals */
  --surface-hover: #f0f3f8;
  --canvas-bg: #fbfcfe;      /* the drawing artboard (kept light so it stays readable) */
  --code-surface: #fbfcfe;   /* export code view */
  --code-bg: #eef1f6;        /* inline code chips */
  --tab-bg: #f1f4f8;
  --overlay: rgba(20, 24, 31, 0.5);
  --shadow: rgba(0, 0, 0, .3);
  --border: #e2e6ec;
  --text: #1f2530;
  --muted: #7b8494;
  --accent: #2f7ff0;
  --accent-2: #03a9f4;
  --danger: #e5484d;
  --danger-border: #f3c6c8;
  --danger-hover: #fdecec;
  --toolbar-bg: #20232a;
  --toolbar-text: #c7ccd6;
  --toolbar-active: #2f7ff0;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1115;
  --panel-bg: #171a20;
  --surface: #21252d;
  --surface-hover: #2b303a;
  --canvas-bg: #191c22;      /* dark artboard — previews how it looks on a dark HA dashboard */
  --fp-ink: #e4e7ec;         /* walls / labels / text on the dark canvas */
  --fp-paper: #191c22;       /* door & window openings (match the canvas) */
  --fp-dimink: #98a0ad;      /* dimensions */
  --code-surface: #1b1f27;
  --code-bg: #2a2f38;
  --tab-bg: #262b34;
  --overlay: rgba(0, 0, 0, 0.62);
  --shadow: rgba(0, 0, 0, .6);
  --border: #333a45;
  --text: #e6e9ef;
  --muted: #8b93a2;
  --accent: #4c8dff;
  --accent-2: #38bdf8;
  --danger: #f26f74;
  --danger-border: #6b3236;
  --danger-hover: #2a1c1e;
  --toolbar-bg: #14161b;
  --toolbar-text: #c2c8d2;
  --toolbar-active: #4c8dff;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  display: grid;
  grid-template-columns: 72px 1fr 328px;
  grid-template-rows: auto 1fr;
  height: 100vh;
  overflow: hidden;
  font-size: 13px;
}

/* ---- top bar ---- */
#topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  min-height: 50px;
  padding: 6px 14px;
  background: var(--panel-bg);
  border-bottom: 1px solid var(--border);
  gap: 8px 12px;
}
.top-actions { flex-wrap: wrap; justify-content: flex-end; }
.brand { display: flex; align-items: center; gap: 8px; }
.logo { font-size: 20px; color: var(--accent); }
.doc-title {
  font-size: 15px; font-weight: 600; border: 1px solid transparent;
  border-radius: 6px; padding: 4px 8px; background: transparent; color: var(--text);
  width: 220px;
}
.doc-title:hover { border-color: var(--border); }
.doc-title:focus { outline: none; border-color: var(--accent); background: var(--surface); }

.top-actions { display: flex; align-items: center; gap: 6px; }
.sep { width: 1px; height: 24px; background: var(--border); margin: 0 4px; }

.btn {
  font: inherit; font-size: 12.5px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 7px; padding: 6px 12px; line-height: 1;
  display: inline-flex; align-items: center; gap: 6px;
}
.btn:hover { background: var(--surface-hover); }
.btn.icon { padding: 6px 10px; font-size: 16px; min-width: 32px; justify-content: center; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #2668cf; }
.btn.active { background: #16a34a; border-color: #16a34a; color: #fff; }
.btn.active:hover { background: #12813c; }
label.btn { cursor: pointer; }

.toggle { display: inline-flex; align-items: center; gap: 5px; color: var(--muted); user-select: none; }
.toggle input { accent-color: var(--accent); }
.toggle.num input { width: 46px; font: inherit; font-size: 12.5px; padding: 4px 6px; border: 1px solid var(--border); border-radius: 6px; accent-color: initial; color: var(--text); background: var(--surface); }
.toggle.num input:focus { outline: none; border-color: var(--accent); }

/* ---- toolbar ---- */
#toolbar {
  grid-row: 2; grid-column: 1;
  background: var(--toolbar-bg);
  display: flex; flex-direction: column; align-items: stretch;
  padding: 8px 6px; gap: 4px;
}
.tool {
  border: none; background: transparent; color: var(--toolbar-text);
  border-radius: 8px; padding: 8px 2px 6px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  font-size: 10px;
}
.tool svg { width: 22px; height: 22px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.tool:hover { background: #2c303a; color: #fff; }
.tool.active { background: var(--toolbar-active); color: #fff; }
.tool-sep { height: 1px; background: #363b45; margin: 6px 4px; }

/* ---- canvas ---- */
#canvas-wrap { grid-row: 2; grid-column: 2; position: relative; overflow: hidden; background: var(--canvas-bg); }
#stage { width: 100%; height: 100%; display: block; cursor: crosshair; touch-action: none; }
body[data-tool="select"] #stage { cursor: default; }

/* Dark mode — preview the floorplan the way HA's dark theme renders it:
   light walls/labels on a dark canvas, dark door/window openings. */
[data-theme="dark"] #floorplan .wall,
[data-theme="dark"] #floorplan .fp-line { stroke: var(--fp-ink) !important; }
[data-theme="dark"] #floorplan .fp-frame { stroke: var(--fp-ink) !important; fill: var(--fp-paper) !important; }
[data-theme="dark"] #floorplan .fp-mask { fill: var(--fp-paper) !important; }
[data-theme="dark"] #floorplan .room-label { fill: var(--fp-ink) !important; }
[data-theme="dark"] #floorplan .sensor, [data-theme="dark"] #floorplan .sensor tspan { fill: var(--fp-ink) !important; }
[data-theme="dark"] #floorplan .fp-dim-line { stroke: var(--fp-dimink) !important; }
[data-theme="dark"] #floorplan .fp-dim-text { fill: var(--fp-dimink) !important; }

/* Momentary buttons (press / run script) have no on/off state — show them at their
   off colour in the editor too, matching how Home Assistant renders them. */
#floorplan g.momentary > path { fill: var(--icon-off, #9e9e9e) !important; }
#floorplan image.momentary { opacity: 0.5; filter: grayscale(0.8); }

/* Preview mode — simulate the Home Assistant interactions */
body.preview #stage { cursor: pointer; }
body.preview #floorplan [id^="area."]:hover { stroke: #03a9f4; stroke-width: 2; }
#stage .spinning { animation: fp-spin 4s linear infinite; transform-origin: center; transform-box: fill-box; }
@keyframes fp-spin { to { transform: rotate(360deg); } }
/* device-icon dim/brighten only while previewing (normal editing shows them full) */
body.preview #stage image.device-off { opacity: 0.4; filter: grayscale(0.85); }
body.preview #stage image.device-on { opacity: 1; filter: drop-shadow(0 0 4px #ffd98a); }
body.preview #stage g.device-off > path { fill: var(--icon-off, #9e9e9e); }
body.preview #stage g.device-on { filter: drop-shadow(0 0 3px currentColor); }
.hint {
  position: absolute; left: 12px; bottom: 12px;
  background: rgba(32,35,42,0.86); color: #fff; padding: 6px 11px;
  border-radius: 7px; font-size: 12px; pointer-events: none; max-width: 60%;
}

/* ---- right panel ---- */
#panel {
  grid-row: 2; grid-column: 3; background: var(--panel-bg);
  border-left: 1px solid var(--border); overflow-y: auto; padding: 4px 0;
}
#panel section { padding: 14px 16px; border-bottom: 1px solid var(--border); }
#panel h3 { margin: 0 0 10px; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 11.5px; }

.field { margin-bottom: 10px; }
.field label { display: block; font-size: 11.5px; color: var(--muted); margin-bottom: 3px; }
.field input[type="text"], .field input[type="number"], .field select {
  width: 100%; font: inherit; font-size: 13px; padding: 6px 8px;
  border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text);
}
.field input:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field.row { display: flex; gap: 8px; }
.field.row > div { flex: 1; }
.color-swatch { width: 100%; height: 30px; border: 1px solid var(--border); border-radius: 6px; padding: 0; }

.btn-row { display: flex; gap: 8px; margin-top: 6px; }
.btn.block { width: 100%; justify-content: center; }
.btn.danger { color: var(--danger); border-color: var(--danger-border); }
.btn.danger:hover { background: var(--danger-hover); }

.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.seg button { border: none; background: var(--surface); padding: 6px 10px; cursor: pointer; font: inherit; font-size: 12px; color: var(--text); }
.seg button.on { background: var(--accent); color: #fff; }

/* HA entity list */
.ha-group { margin-bottom: 14px; }
.ha-group > .ha-head { font-size: 11px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.ha-dot { width: 9px; height: 9px; border-radius: 2px; display: inline-block; }
.ha-row { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.ha-row .name { width: 96px; font-size: 12px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ha-row input { flex: 1; font: inherit; font-size: 12px; padding: 5px 7px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); color: var(--text); }
.ha-row input:focus { outline: none; border-color: var(--accent); }
.ha-empty { color: var(--muted); font-size: 12px; font-style: italic; }

/* ---- modal ---- */
.modal { position: fixed; inset: 0; background: var(--overlay); display: flex; align-items: center; justify-content: center; z-index: 50; }
.modal.hidden { display: none; }
.modal-box { background: var(--surface); border-radius: 12px; width: min(820px, 92vw); height: min(78vh, 720px); display: flex; flex-direction: column; box-shadow: 0 20px 60px var(--shadow); overflow: hidden; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.modal-sub { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--border); background: var(--surface-hover); flex-wrap: wrap; }
.modal-sub label { font-size: 12px; color: var(--muted); font-weight: 600; }
.modal-sub input { font: inherit; font-size: 13px; font-family: "SF Mono", Menlo, Consolas, monospace; padding: 5px 9px; border: 1px solid var(--border); border-radius: 6px; min-width: 180px; background: var(--surface); color: var(--text); }
.modal-sub input:focus { outline: none; border-color: var(--accent); }
.modal-sub code { background: var(--code-bg); padding: 1px 4px; border-radius: 4px; font-size: 11px; }
.tabs { display: flex; gap: 4px; }
.tab { border: 1px solid transparent; background: var(--tab-bg); border-radius: 7px; padding: 7px 14px; cursor: pointer; font: inherit; font-size: 12.5px; color: var(--muted); }
.tab.active { background: var(--accent); color: #fff; }
#export-text { flex: 1; border: none; resize: none; padding: 14px 16px; font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 12.5px; line-height: 1.5; color: var(--text); background: var(--code-surface); }
#export-text:focus { outline: none; }
.modal-foot { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-top: 1px solid var(--border); }
.grow { flex: 1; }

/* ---- scale dialog ---- */
.scale-box { background: var(--surface); border-radius: 12px; width: min(420px, 92vw); padding: 20px 22px; box-shadow: 0 20px 60px var(--shadow); }
.scale-box h3 { margin: 0 0 8px; font-size: 16px; }
.scale-box p { margin: 0 0 14px; line-height: 1.5; }
.scale-input { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; }
.scale-input input { flex: 1; font: inherit; font-size: 18px; font-weight: 600; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); color: var(--text); }
.scale-input input:focus { outline: none; border-color: var(--accent); }
.scale-input span { color: var(--muted); font-size: 14px; }
.scale-actions { display: flex; justify-content: flex-end; gap: 8px; }