/* 아치 LED 화면 (preview/arch.html 이식). 스테이지는 항상 1792×256, transform: scale() 로만 크기 조정 */
:root { --clock-font: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", sans-serif; }
html, body.arch { margin: 0; padding: 0; background: #000; color: #e5e7eb; }
body.arch { overflow-x: hidden; }

#stageWrap { position: relative; margin: 0 auto; overflow: hidden; }
#stage { position: absolute; left: 0; top: 0; transform-origin: 0 0; overflow: hidden; background: #c0171f; }
#stage > * { position: absolute; }
#bgImg { left: 0; top: 0; object-fit: none; object-position: 0 0; display: none; max-width: none; }
#bgSvg { left: 0; top: 0; }
#stage.has-img #bgImg { display: block; }
#stage.has-img #bgSvg { display: none; }

/* ?led=1 : 왼쪽 위에서 여백(--m)만큼 띄워 1:1 고정 (LED 업체가 화면 영역 캡처) */
body.arch.led { overflow-x: visible; padding: var(--m, 48px); width: max-content; }
body.led #stageWrap { margin: 0; overflow: visible; }

/* 캡처 안내선 — 1792×256 영역 바로 바깥 1px 점선 + 모서리 좌표 (캡처 픽셀에는 들어가지 않음) */
#captureGuide {
  position: absolute; left: -1px; top: -1px;
  width: calc(100% + 2px); height: calc(100% + 2px); box-sizing: border-box;
  border: 1px dashed #9ca3af; pointer-events: none; display: none;
}
body.led.show-guide #captureGuide { display: block; }
#captureGuide .gl { position: absolute; font: 12px/1 var(--mono); color: #9ca3af; white-space: nowrap; }
#captureGuide .gl.tl { left: -1px; bottom: calc(100% + 6px); }
#captureGuide .gl.br { right: -1px; top: calc(100% + 6px); }

/* 시계 */
.clock {
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center;
  color: #fff; font-family: var(--clock-font);
  white-space: nowrap; text-align: center;
  text-shadow: 0 2px 6px rgba(0,0,0,.25);
}
.clock .row { display: flex; align-items: baseline; transform-origin: 50% 50%; }
.clock .days { line-height: 1; letter-spacing: .02em; }
.clock .days:not(:empty) { margin-right: .35em; }
.clock .digits { line-height: 1; font-variant-numeric: tabular-nums; display: flex; }
.clock .digits .d, .clock .digits .c { display: inline-block; text-align: center; }
.clock .digits .t { display: inline-block; letter-spacing: .01em; }

/* 제어판 (스테이지 밖) */
#ctrl { display: none; max-width: 1100px; margin: 16px auto 32px; padding: 0 16px; font-size: 15px; }
#ctrl.open { display: block; }
#ctrl h2 { font-size: 17px; margin: 0 0 4px; color: var(--accent-2); font-weight: 600; }
#ctrl .lead { font-size: 13px; margin: 0 0 10px; }
body.led #ctrl { width: 1792px; max-width: 1792px; margin: var(--m, 48px) 0 0; padding: 0; }
#ctrl .ctrl-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 16px; margin-bottom: 12px; }
#ctrl .ctrl-row .pnl-meta { margin: 0; }
#ctrl .ctrl-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; font-size: 13px; color: var(--muted); }
#ctrl .ctrl-tools .btn { min-height: 36px; font-size: 13px; padding: 6px 12px; }
#ctrl .pnl-card { background: #111827; border-color: #1f2937; }
#ctrl .hint { font-size: 12px; color: var(--dim); margin-top: 10px; }
#authBox { max-width: 560px; }
#authBox .help { font-size: 12px; margin-top: 4px; }

/* 연결 끊김 표시 — 화면 오른쪽 아래 구석 (캡처 영역 밖) */
#netDot {
  position: fixed; right: 8px; bottom: 8px; z-index: 10;
  display: flex; align-items: center; gap: 2px; font-size: 12px; color: var(--accent-2);
  background: rgba(0,0,0,.85); padding: 4px 8px; border-radius: 999px; border: 1px solid #78350f;
}
#netDot[hidden] { display: none; }