:root {
  --bg: #faf7f2;
  --ink: #2b2b2b;
  --muted: #6f6a61;
  --accent: #789c86;
  --accent-dark: #5d7f6a;
  --card: #ffffff;
  --line: #e5ded2;
}
* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}
header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  max-width: 880px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand { text-decoration: none; color: var(--ink); display: flex; flex-direction: column; }
.brand-name { font-size: 1.6rem; letter-spacing: .3em; font-weight: 700; }
.brand-sub { font-size: .8rem; color: var(--accent-dark); }
#lang-toggle {
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent-dark);
  border-radius: 999px;
  padding: .35rem .9rem;
  font-size: .85rem;
  cursor: pointer;
}
#lang-toggle:hover { background: var(--accent); color: #fff; }
main { max-width: 880px; margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }
.loading { color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.25rem; }
.chip {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 999px;
  padding: .35rem .85rem;
  font-size: .85rem;
  cursor: pointer;
  color: var(--ink);
}
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.count { color: var(--muted); font-size: .85rem; margin-bottom: 1rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
.card:hover { border-color: var(--accent); }
.card h3 { margin: .2rem 0 .4rem; font-size: 1.05rem; line-height: 1.45; }
.card .alt-title { color: var(--muted); font-size: .85rem; margin: 0 0 .6rem; }
.cat {
  display: inline-block;
  font-size: .72rem;
  color: var(--accent-dark);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: .1rem .55rem;
}
.badges { display: flex; gap: .8rem; color: var(--muted); font-size: .82rem; margin-top: .5rem; }
.detail h1 { font-size: 1.7rem; line-height: 1.4; margin: .4rem 0 .2rem; }
.detail .alt-title { color: var(--muted); margin: 0 0 1rem; }
.meta {
  display: flex; flex-wrap: wrap; gap: .6rem 1.4rem;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: .7rem 0; margin-bottom: 1.4rem; font-size: .9rem; color: var(--muted);
}
.meta b { color: var(--ink); font-weight: 600; }
.body { line-height: 1.85; }
.body h2 { font-size: 1.15rem; margin: 1.6rem 0 .5rem; color: var(--accent-dark); }
.body ul, .body ol { padding-left: 1.4rem; }
.source {
  margin-top: 2rem; padding: .8rem 1rem; background: #f1ede3;
  border-radius: 8px; font-size: .85rem; color: var(--muted);
}
.source a { color: var(--accent-dark); }
.embed-title { font-size: 1.05rem; margin: 2rem 0 .6rem; color: var(--accent-dark); }
.embed blockquote { margin: 0 auto; max-width: 540px; }
.embed iframe.embed-frame {
  display: block; width: 100%; max-width: 540px; margin: 0 auto;
  border: 0; border-radius: 8px; background: #fff;
}
.embed iframe.embed-frame-th { height: 640px; }
.embed iframe.embed-frame-ig { height: 720px; }
.back { color: var(--accent-dark); text-decoration: none; font-size: .9rem; }
footer {
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: .82rem; text-align: center; padding: 1.2rem;
}
@media (max-width: 560px) {
  .brand-name { font-size: 1.3rem; }
  .detail h1 { font-size: 1.4rem; }
}