:root {
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --text: #1a2330;
  --muted: #5b6878;
  --accent: #0b62c4;
  --danger: #c62828;
  --ok: #1b7a3d;
  --warn-bg: #fdecea;
  --border: #dde3ea;
  --radius: 10px;
}

* { box-sizing: border-box; }

/* 高齢の利用者を想定し、基準フォントを大きめ(18px)に取る */
html { font-size: 18px; }

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

.site-header {
  background: #12406e;
  color: #fff;
  padding: 20px 16px 16px;
  text-align: center;
}
.site-header h1 { margin: 0 0 6px; font-size: 1.6rem; }
.tagline { margin: 0; font-size: 1rem; opacity: 0.95; }

.disclaimer-banner {
  background: #e8f1fb;
  border-bottom: 3px solid #12406e;
  padding: 16px;
  text-align: left;
}
.disclaimer-banner .db-main {
  margin: 0 auto;
  max-width: 720px;
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.5;
  color: #12406e;
}
.disclaimer-banner .db-sub {
  margin: 8px auto 0;
  max-width: 720px;
  font-size: 1.05rem;
  font-weight: 500;
  color: #24344a;
}
.disclaimer-banner .db-emphasis {
  margin: 10px auto 0;
  max-width: 720px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #a32020;
  line-height: 1.5;
}

.layout {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 20px;
  max-width: 1060px;
  margin: 0 auto;
}
main { max-width: 720px; flex: 1 1 720px; min-width: 0; margin: 0 auto; padding: 16px; }

.ad-rail {
  flex: 0 0 280px;
  position: sticky;
  top: 16px;
  margin: 16px 16px 16px 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
}
.ad-label {
  margin: 0 0 8px;
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}
.ad-item {
  display: block;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 10px;
  text-decoration: none;
  color: var(--text);
}
.ad-item:hover { background: #f2f7fd; }
.ad-item .ad-title { font-weight: 700; color: var(--accent); }
.ad-item .ad-desc { font-size: 0.82rem; color: var(--muted); margin-top: 4px; }
.ad-note { font-size: 0.72rem; color: var(--muted); margin: 4px 0 0; }

@media (max-width: 1023px) {
  .layout { display: block; }
  .ad-rail { position: static; margin: 0 16px 16px; }
}

.search-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.search-box label { font-weight: 600; font-size: 0.95rem; }
.search-row { display: flex; gap: 8px; margin-top: 8px; }
#addr {
  flex: 1;
  font-size: 1.05rem;
  padding: 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  min-width: 0;
}
#addr:focus { outline: 2px solid var(--accent); border-color: var(--accent); }
#searchBtn {
  font-size: 1.05rem;
  font-weight: 700;
  padding: 12px 22px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
}
#searchBtn:active { opacity: 0.85; }
.hint { color: var(--danger); font-size: 0.85rem; margin: 8px 0 0; min-height: 1em; }

.what-you-get { margin-top: 12px; text-align: left; }
.wyg-title { margin: 0 0 8px; font-size: 1.05rem; }
.wyg-chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 0 0 12px;
}
.wyg-chips li {
  background: #eef4fb;
  border: 1px solid #c6d8ec;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
}
.example-btn {
  font-size: 1rem;
  font-weight: 600;
  padding: 10px 18px;
  background: #fff;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  border-radius: 999px;
  cursor: pointer;
}
.example-btn:hover { background: #f2f7fd; }

.matched-area {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 4px 0 12px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}
.card h2 {
  margin: 0 0 4px;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.card .asof {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 10px;
}
.card .asof.stale { color: var(--danger); font-weight: 700; }

.stat {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 4px 0;
}
.stat.danger { color: var(--danger); }
.stat.ok { color: var(--ok); }

.muni-table { width: 100%; border-collapse: collapse; margin: 8px 0; font-size: 1rem; }
.muni-table th, .muni-table td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}
.muni-table td.num { text-align: right; font-variant-numeric: tabular-nums; }

.quake-item {
  border-left: 4px solid var(--accent);
  padding: 6px 10px;
  margin: 8px 0;
  background: #f2f7fd;
  border-radius: 0 6px 6px 0;
}
.quake-item.big { border-left-color: var(--danger); background: var(--warn-bg); }
.quake-item .qhead { font-weight: 700; }
.quake-item .qlabel {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--danger);
}
.qsection {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--muted);
  margin: 14px 0 4px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
}
.quake-item .qmeta { font-size: 0.95rem; color: var(--muted); }

.link-list { list-style: none; padding: 0; margin: 6px 0 0; }
.link-list li { margin: 6px 0; }
.link-list a {
  display: block;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
}
.link-list a:hover { background: #f2f7fd; }
.link-list .sub { display: block; font-size: 0.9rem; color: var(--muted); font-weight: 400; }

.comment {
  font-size: 0.9rem;
  background: #fff8e6;
  border: 1px solid #f0dfa8;
  border-radius: 6px;
  padding: 8px 10px;
  margin-top: 8px;
  white-space: pre-wrap;
}

.source { font-size: 0.8rem; color: var(--muted); margin-top: 10px; }
.source a { color: var(--muted); }

.notice {
  font-size: 0.95rem;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-top: 20px;
}
.notice h2 { font-size: 1.05rem; margin: 0 0 6px; color: var(--text); }
.notice ul { margin: 0; padding-left: 18px; }

.site-footer {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  padding: 16px;
}

@media (max-width: 480px) {
  .search-row { flex-direction: column; }
  #searchBtn { width: 100%; }
}