:root {
  --bg: #f5f6f8; --card: #fff; --text: #1d2330; --muted: #6b7280; --line: #e3e6ea;
  --accent: #1f6feb; --accent-weak: #e8f0fe; --warn-bg: #fff6e0; --warn: #8a5a00;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.6 "Hiragino Sans", "Yu Gothic UI", "Meiryo", system-ui, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 1.5rem; margin: .2rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.2rem 0 .6rem; }

.topbar { display: flex; align-items: center; gap: 16px; padding: 10px 24px; background: #1d2330; color: #fff; }
.brand { color: #fff; font-weight: 700; white-space: nowrap; }
.topsearch { flex: 1; max-width: 640px; }
.topsearch input { width: 100%; padding: 7px 12px; border-radius: 6px; border: none; }
.usernav { display: flex; gap: 14px; align-items: center; margin-left: auto; }
.usernav a, .linkbtn { color: #cfd6e4; }
.langswitch { display: flex; gap: 10px; }
.linkbtn.active { color: #fff; font-weight: 700; }
.linkbtn { background: none; border: none; cursor: pointer; font: inherit; padding: 0; }

.container { max-width: 1200px; margin: 0 auto; padding: 20px 24px 60px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 16px 20px; margin-bottom: 16px; }
.headline { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.headline-actions { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.translate { display: inline-flex; gap: 8px; align-items: center; }
#translate-status { max-width: 260px; }
.crumbs { color: var(--muted); font-size: .85rem; margin: 0 0 .3rem; }
.muted { color: var(--muted); font-size: .85rem; }
.notice { background: var(--warn-bg); color: var(--warn); padding: 10px 14px; border-radius: 6px; }
.notice a { color: var(--warn); font-weight: 600; }
.error { color: #b42318; }
.empty { color: var(--muted); text-align: center; padding: 20px; }
.nowrap { white-space: nowrap; }
.pre { white-space: pre-wrap; overflow-wrap: anywhere; margin: 0 0 .8rem; }
.mono { font-family: Consolas, monospace; }

.btn { display: inline-block; background: var(--accent); color: #fff; border: none; border-radius: 6px;
  padding: 7px 16px; cursor: pointer; font: inherit; }
.btn:hover { text-decoration: none; opacity: .9; }
.btn.secondary { background: var(--accent-weak); color: var(--accent); }

input[type=search], input[type=text], input[type=password], select {
  padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; font: inherit; background: #fff; }

.makers { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.maker h2 { margin-top: 0; font-size: 1.3rem; }
.maker .stats { display: flex; gap: 18px; color: var(--muted); }
.maker input { width: 100%; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filters input[type=search] { flex: 1; min-width: 240px; }
.check { color: var(--muted); }
.count { color: var(--muted); margin: 0 0 6px; }

table.cases { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.cases th, .cases td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.cases th { background: #fafbfc; font-size: .85rem; color: var(--muted); font-weight: 600; }
.cases th.sortable a { color: inherit; white-space: nowrap; }
.cases th.sortable a:hover { color: var(--accent); }
.cases tr:last-child td { border-bottom: none; }

.tag, .status, .chip { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: .8rem; white-space: nowrap; }
.tag { background: #eef0f3; color: #374151; }
.cat-技術サポート { background: #fde8e8; color: #9b1c1c; }
.cat-技術問い合わせ { background: #e8f0fe; color: #1a4fa0; }
.cat-見積・引き合い { background: #e7f6ec; color: #17663a; }
.cat-発注・請求 { background: #f1ecfb; color: #5b3a9e; }
.tag.board { background: #e6f4f1; color: #0f5c4d; font-family: Consolas, monospace; }
.tag.po { background: #eef1fb; color: #33408f; font-family: Consolas, monospace; }
.case-number { color: var(--muted); font-family: Consolas, monospace; font-weight: 600; }
.tag.review { background: var(--warn-bg); color: var(--warn); }
.status { background: #eef0f3; color: #374151; }
.st-対応中, .st-顧客の確認待ち, .st-メーカーの回答待ち { background: #fff1d6; color: #8a5a00; }
.st-解決・完了 { background: #e7f6ec; color: #17663a; }
.chip { background: #eef0f3; margin: 0 4px 4px 0; }

.detail-grid { display: grid; grid-template-columns: 340px 1fr; gap: 16px; }
.facts { display: grid; grid-template-columns: 100px 1fr; gap: 8px 10px; margin: 0; }
.facts dt { color: var(--muted); font-size: .85rem; }
.facts dd { margin: 0; }
.body h2:first-child { margin-top: 0; }
.knowledge { margin: 0; padding-left: 1.2rem; }
.knowledge li { margin-bottom: .5rem; }
.knowledge .src { margin-left: 6px; }
ul.knowledge.card { padding-left: 2.2rem; }
.related { margin: 0; padding-left: 1.2rem; }

details.thread summary { cursor: pointer; display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
details.thread summary a { margin-left: auto; font-size: .85rem; }
.mail { border-top: 1px solid var(--line); padding-top: 10px; margin-top: 10px; }
.mail header { margin-bottom: 6px; }

.review { background: var(--warn-bg); border: 1px solid #f0d9a8; border-radius: 8px; padding: 12px 16px; margin-bottom: 16px; }
.review-reason { color: var(--warn); font-weight: 600; margin: 0 0 10px; }
.review-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; }
.review-actions form { margin: 0; }
.choose summary { list-style: none; }
.choose summary::-webkit-details-marker { display: none; }
.choose-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 8px !important; }
.maker-checks { display: flex; flex-wrap: wrap; gap: 6px 16px; width: 100%; }
.choose-form { flex-direction: column; align-items: flex-start; background: #fff; border: 1px solid var(--line);
  border-radius: 6px; padding: 10px 12px; }
.choose-form input[type=text] { display: block; margin-top: 4px; min-width: 280px; }
a.chip { color: inherit; }
.flash { padding: 10px 14px; border-radius: 6px; background: #e7f6ec; color: #17663a; }
.flash.error { background: #fde8e8; color: #9b1c1c; }

.assistant-form label { display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; margin-bottom: 8px; }
.assistant-form textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px;
  font: inherit; resize: vertical; }
.assistant-actions { display: flex; gap: 12px; align-items: center; margin-top: 8px; }
.examples { padding-left: 1.2rem; }
.examples .linkbtn { color: var(--accent); text-align: left; }
.history { list-style: none; padding: 8px 20px; }
.history li { padding: 6px 0; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; }
.history li:last-child { border-bottom: none; }
.prompt { font-size: 1.05rem; margin: 0; }
.exports { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 8px; }

.pager { display: flex; gap: 16px; justify-content: center; margin-top: 16px; }
.login { max-width: 380px; margin: 60px auto; }
.login label { display: block; margin-bottom: 12px; color: var(--muted); }
.login input { display: block; width: 100%; margin-top: 4px; }
.login .btn.google { display: block; text-align: center; padding: 10px; }
.login details { margin-top: 16px; }
.login summary { cursor: pointer; color: var(--muted); font-size: .85rem; margin-bottom: 12px; }

@media (max-width: 800px) {
  .detail-grid { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; }
  .cases .col-customer { display: none; }
}