:root {
  --bg: #0f172a; --card: #1e293b; --ink: #e2e8f0; --muted: #94a3b8;
  --accent: #16a34a; --accent-2: #22c55e; --err: #ef4444; --warn: #f59e0b;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.45;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
header { padding: 22px 18px 6px; }
h1 { margin: 0; font-size: 1.5rem; }
.tag { color: var(--muted); margin: 4px 0 0; font-size: .92rem; }
main { padding: 12px 18px 40px; max-width: 720px; margin: 0 auto; }
form { display: flex; flex-direction: column; gap: 12px; }
label { display: flex; flex-direction: column; gap: 5px; font-size: .82rem; color: var(--muted); }
input {
  padding: 12px; border-radius: 10px; border: 1px solid #334155;
  background: var(--card); color: var(--ink); font-size: 1rem;
}
input:focus { outline: 2px solid var(--accent); border-color: transparent; }
small { color: var(--muted); font-size: .76rem; }
small a, a { color: var(--accent-2); }
details#advanced { background: var(--card); border-radius: 10px; padding: 8px 12px; }
details#advanced[open] { padding-bottom: 14px; }
details#advanced summary { cursor: pointer; color: var(--muted); font-size: .85rem; padding: 4px 0; }
details#advanced label { margin-top: 12px; }
button {
  padding: 14px; border: 0; border-radius: 12px; background: var(--accent);
  color: white; font-size: 1.05rem; font-weight: 600; cursor: pointer;
}
button:disabled { opacity: .6; }
button:hover:not(:disabled) { background: var(--accent-2); }
.status {
  margin-top: 14px; padding: 12px 14px; border-radius: 10px;
  background: var(--card); font-size: .92rem;
}
.status.err { background: #3f1d1d; color: #fecaca; }
#result { margin-top: 16px; display: flex; flex-direction: column; gap: 12px; }
#map { height: 340px; border-radius: 12px; overflow: hidden; border: 1px solid #334155; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.stats > div {
  background: var(--card); border-radius: 10px; padding: 10px 6px; text-align: center;
  display: flex; flex-direction: column; gap: 2px;
}
.stats b { font-size: 1.15rem; }
.stats span { font-size: .68rem; color: var(--muted); }
.stats .ok b { color: var(--accent-2); }
.stats .warn b { color: var(--warn); }
.open-btn {
  display: block; text-align: center; text-decoration: none; padding: 15px;
  background: #2563eb; color: white; border-radius: 12px; font-weight: 600; font-size: 1.05rem;
}
.open-btn:hover { background: #3b82f6; }
.caveat { font-size: .8rem; color: #fcd34d; background: #3b2f12; padding: 10px 12px; border-radius: 10px; margin: 0; }
.link-detail summary { color: var(--muted); font-size: .8rem; cursor: pointer; }
.link-detail code { display: block; word-break: break-all; font-size: .72rem; color: var(--muted); margin-top: 6px; }
.footnote { color: var(--muted); font-size: .72rem; margin-top: 24px; text-align: center; }