:root {
  --bg: #0e1113;
  --bar-bg: rgba(14, 17, 19, 0.82);
  --fg: #e8eaed;
  --muted: #9aa3ab;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #7ec8e3;
  --panel-bg: rgba(18, 22, 25, 0.96);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
        "Pretendard", "Noto Sans KR", "Segoe UI", sans-serif;
  overscroll-behavior: none;
}

/* The viewer fills the window; the bar floats over it so the map is never boxed in. */
#viewer {
  position: fixed;
  inset: 0;
  background: var(--bg);
}

#bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left));
  background: var(--bar-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

#labels {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

#bar h1 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#bar .sep { color: var(--muted); margin: 0 0.5em; }
#bar em { font-style: normal; font-weight: 400; color: var(--muted); }

#labels-toggle {
  flex: none;
  margin-left: auto;
  font: inherit;
  font-size: 13px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 13px;
  cursor: pointer;
}
#labels-toggle:hover { border-color: var(--accent); color: var(--accent); }
#labels-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#labels-toggle[aria-pressed="true"] {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}
#labels-toggle:disabled { opacity: 0.5; cursor: default; }

#detail-toggle {
  flex: none;
  font: inherit;
  font-size: 13px;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 13px;
  cursor: pointer;
}
#detail-toggle:hover { border-color: var(--accent); color: var(--accent); }
#detail-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#detail-toggle[aria-pressed="true"] {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

#detail {
  position: fixed;
  z-index: 12;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  width: min(420px, calc(100vw - 32px));
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
  overflow: hidden;
}

#detail header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px 9px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}
#detail-where { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#detail header button {
  flex: none;
  font: inherit;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  cursor: pointer;
}
#detail header button:hover { border-color: var(--accent); color: var(--accent); }
#detail-close { font-size: 15px; line-height: 1; padding: 2px 9px 4px; }

#detail-map {
  height: 300px;
  background: #0a0d0f;
}

.detail-note { margin: 0; padding: 8px 14px 10px; font-size: 12px; }
.detail-note a { color: var(--accent); }

/* Leaflet paints its own light chrome; keep it from glaring out of the dark panel. */
#detail .leaflet-control-attribution {
  background: rgba(255, 255, 255, 0.82);
  font-size: 10px;
}

#coords {
  flex: none;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  color: var(--muted);
  white-space: nowrap;
  /* Reserve the line so the bar does not twitch as the readout appears. */
  min-width: 15ch;
  text-align: right;
}

#info-toggle {
  flex: none;
  font: inherit;
  font-size: 13px;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 13px;
  cursor: pointer;
}
#info-toggle:hover { border-color: var(--accent); color: var(--accent); }
#info-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

#info {
  position: fixed;
  z-index: 11;
  top: 52px;
  right: max(16px, env(safe-area-inset-right));
  width: min(380px, calc(100vw - 32px));
  max-height: calc(100vh - 72px);
  overflow-y: auto;
  padding: 4px 22px 20px;
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
  font-size: 14px;
}

#info h2 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-transform: uppercase;
  margin: 22px 0 6px;
}
#info p { margin: 0 0 10px; }
#info ul { margin: 0 0 10px; padding-left: 1.1em; }
#info li { margin-bottom: 3px; }
#info b, #info strong { font-weight: 600; }
#info a { color: var(--accent); }
#info .muted { color: var(--muted); font-size: 13px; }
#info .back { margin-top: 20px; padding-top: 14px; border-top: 1px solid var(--line); }
#info .back a { color: var(--muted); text-decoration: none; }
#info .back a:hover { color: var(--accent); }

#loading {
  position: fixed;
  z-index: 5;
  inset: 0;
  margin: 0;
  display: grid;
  place-content: center;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.02em;
  pointer-events: none;
}

.noscript {
  position: fixed;
  z-index: 20;
  inset: auto 16px 16px;
  margin: 0;
  padding: 12px 16px;
  background: var(--panel-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
}

/* OpenSeadragon's navigator ships with a white frame that glares against the dark chrome. */
.openseadragon-container .navigator {
  border-color: var(--line) !important;
  background: rgba(0, 0, 0, 0.35) !important;
}

@media (max-width: 560px) {
  #bar h1 em, #bar .sep { display: none; }
  #coords { font-size: 11.5px; min-width: 0; }
  #labels-toggle, #detail-toggle { font-size: 11.5px; padding: 4px 9px; }
  #detail { left: max(16px, env(safe-area-inset-left)); width: auto; }
  #detail-map { height: 220px; }
  #bar h1 { font-size: 13px; }
  #info { top: 50px; left: max(16px, env(safe-area-inset-left)); width: auto; }
}