:root {
  --bg: #ffffff;
  --fg: #1d1d1f;
  --muted: #6e6e73;
  --line: #e5e5ea;
  --card: #f5f5f7;
  --accent: #0a66ff;
  --ok: #1a9e48;
  --warn: #d98a00;
  --bad: #d23a2f;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.14);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1e;
    --fg: #f2f2f7;
    --muted: #a1a1a6;
    --line: #38383a;
    --card: #2c2c2e;
    --accent: #4c8dff;
    --shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; color: inherit; }
button {
  border: 0; border-radius: 10px; padding: 10px 16px; background: var(--accent); color: #fff;
  cursor: pointer; font-weight: 600;
}
button.ghost { background: var(--card); color: var(--fg); }
button.danger { background: transparent; color: var(--bad); border: 1px solid var(--bad); }
button:disabled { opacity: 0.5; cursor: default; }
input[type="text"], input[type="url"], textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg); color: var(--fg);
}
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }

/* ---------- viewer ---------- */
.viewer #map { position: fixed; inset: 0; }
.topbar {
  position: fixed; top: max(10px, env(safe-area-inset-top)); left: 10px; right: 10px; z-index: 1000;
  display: flex; gap: 8px; align-items: center; pointer-events: none;
}
.topbar > * { pointer-events: auto; }
.pill {
  background: var(--bg); color: var(--fg); border-radius: 999px; box-shadow: var(--shadow);
  padding: 6px 12px; font-size: 13px; display: flex; align-items: center; gap: 6px; white-space: nowrap;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex: none; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.bad { background: var(--bad); }
.spacer { flex: 1; }
.seg { display: flex; padding: 3px; gap: 2px; }
.seg button { padding: 4px 10px; border-radius: 999px; background: transparent; color: var(--muted); font-weight: 500; font-size: 13px; }
.seg button.on { background: var(--accent); color: #fff; }

.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 1000; background: var(--bg);
  border-radius: 16px 16px 0 0; box-shadow: var(--shadow); max-height: 60vh; display: flex; flex-direction: column;
  transition: transform 0.25s ease; padding-bottom: env(safe-area-inset-bottom);
}
.sheet.collapsed { transform: translateY(calc(100% - 64px - env(safe-area-inset-bottom))); }
.sheet-head { padding: 8px 16px 10px; cursor: pointer; user-select: none; }
.grip { width: 36px; height: 5px; border-radius: 3px; background: var(--line); margin: 0 auto 8px; }
.sheet-head h1 { font-size: 15px; margin: 0; display: flex; justify-content: space-between; gap: 8px; }
.list { overflow-y: auto; padding: 0 8px 8px; }
.row {
  display: grid; grid-template-columns: 36px 1fr auto; gap: 4px 10px; align-items: center;
  padding: 10px 8px; border-radius: 12px; cursor: pointer;
}
.row:hover { background: var(--card); }
.avatar {
  width: 36px; height: 36px; border-radius: 50%; border: 3px solid #ccc; overflow: hidden; grid-row: span 2; background: #dff1fb;
}
.avatar svg, .pin svg { display: block; width: 100%; height: 100%; }
.avatar.stale, .avatar.ended, .avatar.error, .avatar.waiting { filter: grayscale(1); opacity: 0.75; }
.name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.badge { font-size: 12px; padding: 1px 8px; border-radius: 999px; background: var(--card); color: var(--muted); justify-self: end; }
.badge.live { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.badge.error { background: color-mix(in srgb, var(--bad) 15%, transparent); color: var(--bad); }
.stats { grid-column: 2 / 4; font-size: 13px; color: var(--muted); display: flex; gap: 12px; flex-wrap: wrap; }
.empty { padding: 16px; color: var(--muted); text-align: center; }

.pin {
  width: 38px; height: 38px; border-radius: 50%; border: 3px solid #fff; overflow: hidden; background: #dff1fb;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
}
.pin.stale, .pin.ended, .pin.error { filter: grayscale(1); }
.pin-wrap { position: relative; }
.pin-tag {
  position: absolute; top: 40px; left: 50%; transform: translateX(-50%); white-space: nowrap; font-size: 11px;
  background: rgba(0, 0, 0, 0.65); color: #fff; padding: 1px 6px; border-radius: 6px;
}

.viewer .leaflet-bottom { bottom: calc(64px + env(safe-area-inset-bottom)); }

.overlay {
  position: fixed; inset: 0; z-index: 2000; display: grid; place-items: center; background: var(--bg); padding: 24px; text-align: center;
}
.overlay[hidden] { display: none; }

@media (min-width: 900px) {
  .viewer #map { right: 340px; }
  .sheet { left: auto; top: 0; width: 340px; max-height: none; border-radius: 0; transform: none !important; box-shadow: none; border-left: 1px solid var(--line); }
  .sheet-head { cursor: default; padding-top: 16px; }
  .grip { display: none; }
  .topbar { right: 350px; }
  .viewer .leaflet-bottom { bottom: 0; }
}

/* ---------- admin / landing ---------- */
.page { max-width: 640px; margin: 0 auto; padding: 24px 16px 48px; }
.page h1 { font-size: 24px; margin: 8px 0 4px; }
.card { background: var(--card); border-radius: 14px; padding: 16px; margin: 16px 0; }
.card h2 { font-size: 16px; margin: 0 0 12px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.field label { font-size: 13px; color: var(--muted); }
.linkbox { display: flex; gap: 8px; }
.linkbox input { flex: 1; min-width: 0; }
.msg { font-size: 14px; margin-top: 8px; min-height: 1.4em; }
.msg.err { color: var(--bad); }
.msg.ok { color: var(--ok); }
.plist .row { cursor: default; grid-template-columns: 36px 1fr auto auto auto; }
.plist select { padding: 4px 6px; border-radius: 8px; border: 1px solid var(--line); background: var(--bg); color: var(--fg); font-size: 13px; }
.plist .row:hover { background: transparent; }
.plist button { padding: 4px 10px; font-size: 13px; }