/* でんきかいでん 伝言板（暗色・シンプル・端末のフォント） */
:root {
  --bg: #121316;
  --panel: #1c1d22;
  --panel2: #24262c;
  --line: #2c2d33;
  --text: #ececf0;
  --muted: #9a9ba3;
  --accent: #ffc93c;
  --link: #8cc4ff;
  --danger: #ff6b6b;
  --ok: #6fd39a;
}
html { color-scheme: dark; -webkit-text-size-adjust: 100%; }
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;
  line-height: 1.75; font-size: 16px;
}
a { color: var(--link); }
a:hover { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

/* ヘッダー */
header.top { border-bottom: 1px solid var(--line); background: #16171b; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 56px; }
.logo { color: var(--text); font-weight: 700; text-decoration: none; letter-spacing: .03em; }
.logo span { color: var(--accent); margin-left: .4em; }
.home { font-size: .85rem; color: var(--muted); text-decoration: none; }

.hero { padding: 28px 0 8px; }
.hero h1 { font-size: 1.5rem; margin: 0 0 6px; line-height: 1.4; }
.lead { margin: 0; color: var(--muted); }
.notice { margin-top: 14px; padding: 12px 14px; border-left: 3px solid var(--accent); background: var(--panel); border-radius: 6px; }

/* 枠 */
.box { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin: 18px 0; }
.box h2 { font-size: 1.05rem; margin: 0 0 12px; }
.box h2 + * { margin-top: 0; }
.box.narrow { max-width: 420px; margin: 48px auto; }
.box.narrow h1 { font-size: 1.2rem; margin: 0 0 10px; }

/* フォーム */
label { display: block; margin: 0 0 12px; font-size: .9rem; color: var(--muted); }
input[type=text], input[type=password], input[type=email], textarea {
  display: block; width: 100%; margin-top: 4px; padding: 10px 12px;
  font: inherit; font-size: 16px; color: var(--text);
  background: var(--bg); border: 1px solid var(--line); border-radius: 6px;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }
textarea { resize: vertical; min-height: 110px; }
input[type=file] { display: block; margin-top: 6px; max-width: 100%; color: var(--muted); font-size: .9rem; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 6px; }
.btn {
  display: inline-block; padding: 9px 18px; font: inherit; font-size: .92rem; font-weight: 700;
  color: #121316; background: var(--accent); border: 0; border-radius: 999px; cursor: pointer; text-decoration: none;
}
.btn:hover { filter: brightness(1.08); color: #121316; }
.btn.sub { color: var(--text); background: var(--panel2); border: 1px solid var(--line); font-weight: 400; }
.btn.danger { color: #fff; background: #b8383d; }
.hint, .file-msg { font-size: .82rem; color: var(--muted); margin: 8px 0 0; }
.file-msg:empty { display: none; }
.file-msg { color: var(--danger); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.errors { margin: 0 0 14px; padding: 10px 14px 10px 30px; color: var(--danger); background: rgba(255,107,107,.08); border-radius: 6px; }
.flash { padding: 10px 14px; margin: 16px 0; background: rgba(111,211,154,.1); color: var(--ok); border-radius: 6px; }
.flash.bad { background: rgba(255,107,107,.1); color: var(--danger); }
.quote { margin: 0 0 12px; padding: 8px 12px; color: var(--muted); border-left: 3px solid var(--line); font-size: .9rem; }
.rules { margin-top: 14px; font-size: .88rem; color: var(--muted); }
.rules summary { cursor: pointer; }
.rules ul { padding-left: 1.2em; margin: 8px 0 0; }
.radio { display: block; margin: 0 0 10px; color: var(--text); }
.radio span { display: block; padding-left: 1.6em; color: var(--muted); font-size: .85rem; }
.chk { display: inline-flex; align-items: center; gap: 6px; color: var(--text); margin: 0 14px 10px 0; }

/* 書き込み */
.posts { margin: 26px 0; }
.thread { margin: 0 0 16px; }
.post { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; }
.post.reply { margin: 6px 0 0 22px; background: #18191d; }
.post:target { border-color: var(--accent); }
.post.gone .body { margin: 0; color: var(--muted); font-size: .9rem; }
.post.waiting { border-style: dashed; border-color: rgba(255,201,60,.55); opacity: .92; }
.post.by-admin { border-left: 4px solid var(--accent); }
.admin-badge { display: inline-flex; align-items: center; gap: 4px; padding: 1px 10px 1px 7px; font-weight: 700; color: #121316; background: var(--accent); border-radius: 999px; line-height: 1.6; }
.admin-badge svg { width: 14px; height: 14px; fill: currentColor; }
.admin-tag { padding: 0 8px; font-size: .75rem; color: var(--accent); border: 1px solid var(--accent); border-radius: 999px; }
.as-admin { margin: 0 0 12px; padding: 10px 12px; font-size: .9rem; background: rgba(255,201,60,.08); border-radius: 6px; }
.wait-note { margin: 0 0 6px; padding: 4px 10px; font-size: .8rem; color: var(--accent); background: rgba(255,201,60,.08); border-radius: 6px; }
.meta { margin: 0 0 4px; font-size: .82rem; color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: center; }
.meta .no { color: var(--accent); }
.meta .name { color: var(--text); font-weight: 700; }
.meta .tag { padding: 0 8px; border: 1px solid var(--line); border-radius: 999px; }
.body { overflow-wrap: anywhere; }
.body .anchor { text-decoration: none; }
.imgs { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 0; }
.imgs img { display: block; max-width: 200px; max-height: 200px; width: auto; height: auto; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); }
.acts { margin: 6px 0 0; display: flex; flex-wrap: wrap; gap: 14px; font-size: .82rem; }
.acts a { color: var(--muted); }
.empty { color: var(--muted); text-align: center; padding: 24px 0; }

.pager { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; margin: 20px 0; }
.pager a, .pager span { min-width: 38px; padding: 6px 10px; text-align: center; border: 1px solid var(--line); border-radius: 6px; text-decoration: none; }
.pager span { background: var(--accent); color: #121316; border-color: var(--accent); }

/* PR */
.pr { margin: 34px 0 10px; }
.pr h2 { font-size: 1rem; margin: 0 0 10px; }
.pr-label { font-size: .7rem; padding: 1px 6px; border: 1px solid var(--muted); border-radius: 4px; color: var(--muted); vertical-align: middle; }
.pr ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; }
.pr a { display: block; height: 100%; padding: 10px 12px; background: var(--panel); border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--text); }
.pr a:hover { border-color: var(--accent); }
.pr-cat { display: block; font-size: .72rem; color: var(--accent); }
.pr strong { display: block; font-size: .92rem; }
.pr-desc { display: block; font-size: .78rem; color: var(--muted); line-height: 1.5; margin-top: 2px; }
.pr-note { font-size: .72rem; color: var(--muted); margin: 8px 0 0; }

/* シェア */
.dk-share { margin: 34px 0 2em; text-align: center; }
.dk-share-title { margin: 0 0 12px; font-size: .85rem; color: var(--muted); letter-spacing: .05em; }
.dk-share ul { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 0; padding: 0; list-style: none; }
.dk-share a, .dk-share button { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; font: inherit; font-size: .85rem; line-height: 1.2; color: var(--text); text-decoration: none; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; cursor: pointer; }
.dk-share a:hover, .dk-share button:hover { background: var(--panel2); border-color: var(--accent); }
.dk-share svg { width: 15px; height: 15px; fill: currentColor; }

/* フッター */
.site-foot { border-top: 1px solid var(--line); padding: 20px 16px 28px; text-align: center; font-size: .82rem; color: var(--muted); }
.site-foot p { margin: 0 0 6px; }
.site-foot .copyright a { color: var(--muted); text-decoration: none; }
.site-foot .copyright a:hover { color: var(--accent); }

/* 管理画面 */
body.admin .wrap { max-width: 860px; }
.admin-top { display: flex; justify-content: space-between; align-items: center; padding-top: 20px; }
.admin-top h1 { font-size: 1.3rem; margin: 0; }
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin: 16px 0; border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.tabs a { padding: 6px 14px; border-radius: 999px; text-decoration: none; color: var(--text); background: var(--panel); border: 1px solid var(--line); }
.tabs a[aria-current] { background: var(--accent); color: #121316; border-color: var(--accent); }
.tabs b { display: inline-block; min-width: 1.5em; padding: 0 5px; margin-left: 2px; text-align: center; font-size: .8rem; color: #fff; background: #b8383d; border-radius: 999px; }
.bulk { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0 0 12px; }
.post.adm { margin: 0 0 12px; }
.reasons { margin: 4px 0; font-size: .82rem; color: var(--accent); }
.sys { font-size: .75rem; color: var(--muted); margin: 8px 0 0; overflow-wrap: anywhere; }
.ban-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }

@media (max-width: 520px) {
  .hero h1 { font-size: 1.3rem; }
  .post.reply { margin-left: 12px; }
  .imgs img { max-width: 140px; max-height: 140px; }
}