:root {
  --bg: #fbfbfa;
  --panel: #ffffff;
  --ink: #1f2328;
  --muted: #6a737d;
  --line: #e6e6e3;
  --accent: #2f6f4e;
  --accent-soft: #e8f2ec;
  --wl: #2f6f4e;
  --dref: #8a5a00;
  --unknown: #b23c3c;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1b1e;
    --panel: #232529;
    --ink: #e6e6e6;
    --muted: #9aa0a6;
    --line: #34373c;
    --accent: #6fbf95;
    --accent-soft: #24352c;
    --wl: #6fbf95;
    --dref: #d8a850;
    --unknown: #e07a7a;
    --shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 15px/1.7 -apple-system, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

/* topbar */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 12px;
  padding: 10px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; text-decoration: none; color: var(--ink); }
.topbar .spacer { flex: 1; }
.topbar .user { color: var(--muted); font-size: 13px; }
#search {
  width: 220px; padding: 6px 10px;
  border: 1px solid var(--line); border-radius: 6px;
  background: var(--bg); color: var(--ink);
}
.linkbtn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 13px; }
.linkbtn:hover { color: var(--accent); }

/* layout */
.layout { display: flex; align-items: flex-start; }
.sidebar {
  position: sticky; top: 53px;
  width: 250px; flex: none;
  height: calc(100vh - 53px); overflow-y: auto;
  padding: 16px 10px 40px; border-right: 1px solid var(--line);
}
.nav-group { margin-bottom: 14px; }
.nav-group-title {
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); padding: 4px 10px;
}
.sidebar a {
  display: block; padding: 5px 10px; border-radius: 6px;
  color: var(--ink); text-decoration: none; font-size: 14px;
}
.sidebar a:hover { background: var(--accent-soft); }
.sidebar a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

.content { flex: 1; min-width: 0; padding: 26px 40px 120px; }
.markdown-body { max-width: 820px; }

/* markdown */
.markdown-body h1 { font-size: 26px; margin: .2em 0 .6em; }
.markdown-body h2 { font-size: 20px; margin: 1.6em 0 .5em; padding-bottom: .2em; border-bottom: 1px solid var(--line); }
.markdown-body h3 { font-size: 16px; margin: 1.3em 0 .4em; }
.markdown-body p, .markdown-body li { color: var(--ink); }
.markdown-body ul { padding-left: 1.4em; }
.markdown-body li { margin: .28em 0; }
.markdown-body blockquote {
  margin: 1em 0; padding: .4em 1em; color: var(--muted);
  border-left: 3px solid var(--line); background: var(--panel);
}
.markdown-body code {
  background: var(--accent-soft); padding: .1em .35em; border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em;
}
.markdown-body table { border-collapse: collapse; margin: 1em 0; display: block; overflow-x: auto; }
.markdown-body th, .markdown-body td { border: 1px solid var(--line); padding: 6px 10px; }
.markdown-body a { color: var(--accent); }
.header-anchor { opacity: 0; margin-right: .3em; text-decoration: none; font-size: .8em; }
h2:hover .header-anchor, h3:hover .header-anchor { opacity: .5; }

/* wikilinks */
a.wikilink {
  color: var(--wl); text-decoration: none;
  border-bottom: 1px dotted var(--wl); cursor: help;
}
a.wikilink:hover { background: var(--accent-soft); }
a.decision-ref {
  color: var(--dref); text-decoration: none;
  border-bottom: 1px dotted var(--dref); cursor: help; font-variant-numeric: tabular-nums;
}
a.decision-ref:hover { background: rgba(200, 150, 0, .12); }
.wikilink-unknown { color: var(--unknown); border-bottom: 1px dashed var(--unknown); }
/* 普通用户视角：决策编号纯文字标签（不可点、无 hover） */
.dref-flat { color: var(--muted); font-variant-numeric: tabular-nums; cursor: default; }

/* 用户故事标题（F{n}-US{m}）：醒目卡片式标题 */
.markdown-body h3.story-title {
  font-size: 18px; font-weight: 700; color: var(--accent);
  margin: 1.8em 0 .5em; padding: 8px 12px;
  border-left: 4px solid var(--accent);
  background: linear-gradient(90deg, var(--accent-soft), transparent 85%);
  border-radius: 0 8px 8px 0;
}
.markdown-body h3.story-title .header-anchor { color: var(--accent); }

/* term / decision item anchors */
.anchor-link { color: var(--muted); text-decoration: none; margin-right: .4em; opacity: 0; }
.term-item:hover .anchor-link, .decision-item:hover .anchor-link { opacity: .55; }

/* GLOSSARY 词条：卡片化、有间隔；术语词用显眼 chip 与说明区分 */
.markdown-body ul:has(.term-item) { padding-left: 0; }
.markdown-body li.term-item {
  list-style: none;
  margin: 10px 0; padding: 12px 16px;
  border: 1px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 8px; background: var(--panel);
  line-height: 1.75;
}
.markdown-body li.term-item > strong {
  display: inline-block;
  font-size: 15.5px; font-weight: 700; color: var(--accent);
  background: var(--accent-soft);
  padding: 1px 10px; border-radius: 6px; margin-right: .2em;
}

/* comment button + thread */
.comment-btn {
  margin-left: .5em; padding: 0 .3em; border: none; background: none;
  cursor: pointer; opacity: .35; font-size: .9em; position: relative;
}
.comment-btn:hover { opacity: 1; }
.term-item:hover .comment-btn, .decision-item:hover .comment-btn,
h2:hover .comment-btn, h3:hover .comment-btn { opacity: .7; }
.comment-btn .badge {
  position: absolute; top: -6px; right: -8px;
  background: var(--accent); color: #fff; border-radius: 9px;
  font-size: 10px; line-height: 1; padding: 2px 5px; min-width: 14px; text-align: center;
}
.comment-thread { margin: .3em 0 .8em 1.2em; }
.comment-form {
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px;
  padding: 10px; margin: .4em 0; max-width: 620px;
}
.comment-form .cf-target { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.comment-form textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 8px;
  background: var(--bg); color: var(--ink); font: inherit; resize: vertical;
}
.cf-actions { display: flex; align-items: center; gap: 10px; margin-top: 8px; }
.cf-actions button {
  background: var(--accent); color: #fff; border: none; border-radius: 6px;
  padding: 6px 14px; cursor: pointer;
}
.cf-msg { font-size: 12px; color: var(--muted); }
.comment-list { max-width: 620px; }
.comment {
  border-left: 2px solid var(--accent-soft); padding: 4px 10px; margin: 6px 0;
  background: var(--panel); border-radius: 0 6px 6px 0;
}
.comment .c-meta { font-size: 12px; color: var(--muted); }
.comment .c-body { white-space: pre-wrap; }

/* hovercard */
.hovercard {
  position: absolute; z-index: 50; max-width: 360px; max-height: 260px; overflow-y: auto;
  background: var(--panel); color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow);
  padding: 12px 14px; font-size: 13.5px; line-height: 1.6;
}
.hc-kind { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.hc-title { font-weight: 700; font-size: 15px; margin: 2px 0 6px; }
.hc-body { color: var(--ink); }
.hc-alias { margin-top: 6px; font-size: 12px; color: var(--muted); }
.st-confirmed { color: var(--accent); }
.st-assumed { color: var(--dref); }
.st-deprecated { color: var(--unknown); text-decoration: line-through; }

/* login */
.login-body { display: grid; place-items: center; height: 100vh; }
.login-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 32px; width: 340px; box-shadow: var(--shadow); text-align: center;
}
.login-card h1 { margin: 0 0 4px; }
.login-card .hint { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.login-card input {
  display: block; width: 100%; margin: 8px 0; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink);
}
.login-card button {
  width: 100%; margin-top: 10px; padding: 10px; border: none; border-radius: 8px;
  background: var(--accent); color: #fff; font-size: 15px; cursor: pointer;
}
.login-card .error { color: var(--unknown); font-size: 13px; }

/* topbar admin link */
.adminlink {
  color: var(--accent); text-decoration: none; font-size: 13px;
  border: 1px solid var(--accent); border-radius: 6px; padding: 3px 10px;
}
.adminlink:hover { background: var(--accent-soft); }

/* comment moderation (inline on doc pages) */
.comment.is-hidden { opacity: .55; }
.c-status { font-size: 11px; padding: 0 6px; border-radius: 9px; border: 1px solid var(--line); }
.c-status.st-resolved, .st-resolved { color: var(--accent); }
.c-status.st-hidden, .st-hidden { color: var(--muted); }
.c-status.st-open, .st-open { color: var(--dref); }
.c-mod { margin-top: 6px; display: flex; gap: 6px; flex-wrap: wrap; }
.c-mod button {
  font-size: 12px; padding: 2px 8px; border: 1px solid var(--line);
  border-radius: 6px; background: var(--bg); color: var(--muted); cursor: pointer;
}
.c-mod button:hover { border-color: var(--accent); color: var(--accent); }
.c-mod button.danger:hover { border-color: var(--unknown); color: var(--unknown); }

/* admin page */
.admin { max-width: 1100px; margin: 0 auto; padding: 26px 32px 100px; }
.admin h1 { font-size: 24px; }
.admin h2 { font-size: 18px; margin-top: 1.6em; border-bottom: 1px solid var(--line); padding-bottom: .2em; }
.admin-stat { color: var(--muted); font-size: 14px; }
.admin-stat #refresh-content { margin-left: 10px; }
.table-wrap { overflow-x: auto; }
.admin-table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
.admin-table th, .admin-table td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; vertical-align: top; }
.admin-table th { background: var(--panel); position: sticky; top: 0; }
.admin-table .c-when { white-space: nowrap; color: var(--muted); }
.admin-table .c-who { white-space: nowrap; font-weight: 600; }
.admin-table .c-body { min-width: 240px; white-space: pre-wrap; }
.admin-table .c-actions { white-space: nowrap; }
.admin-table .c-actions button {
  font-size: 12px; margin: 1px; padding: 2px 8px; border: 1px solid var(--line);
  border-radius: 6px; background: var(--bg); color: var(--muted); cursor: pointer;
}
.admin-table .c-actions button:hover { border-color: var(--accent); color: var(--accent); }
.admin-table .c-actions button.danger:hover { border-color: var(--unknown); color: var(--unknown); }
.st-row-hidden { opacity: .55; }

/* 草稿投稿：浮动 + 按钮 */
.fab-draft {
  position: fixed; right: 28px; bottom: 28px; z-index: 40;
  width: 52px; height: 52px; border-radius: 50%;
  border: none; background: var(--accent); color: #fff;
  font-size: 28px; line-height: 1; cursor: pointer;
  box-shadow: var(--shadow);
}
.fab-draft:hover { filter: brightness(1.08); }

/* 草稿编辑器弹层 */
.draft-modal {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(0, 0, 0, .38);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 6vh 16px;
}
.draft-modal[hidden] { display: none; }
.draft-dialog {
  background: var(--panel); color: var(--ink);
  border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
  width: min(860px, 96vw); max-height: 88vh; overflow-y: auto; padding: 20px 22px;
}
.draft-head { display: flex; align-items: center; justify-content: space-between; }
.draft-head b { font-size: 17px; }
.draft-hint { color: var(--muted); font-size: 13px; margin: 6px 0 12px; }
.draft-title {
  width: 100%; padding: 10px 12px; margin-bottom: 12px;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); color: var(--ink); font-size: 15px;
}
.draft-editor { display: grid; grid-template-columns: 1fr 240px; gap: 14px; }
.draft-editor textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px;
  background: var(--bg); color: var(--ink); font: inherit; line-height: 1.7; resize: vertical;
}
.draft-terms { border: 1px solid var(--line); border-radius: 8px; padding: 10px; display: flex; flex-direction: column; min-height: 0; }
.draft-terms-title { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.draft-terms #draft-term-search {
  width: 100%; padding: 6px 8px; margin-bottom: 8px;
  border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--ink);
}
.draft-term-list { overflow-y: auto; max-height: 300px; display: flex; flex-wrap: wrap; gap: 6px; align-content: flex-start; }
.term-chip {
  border: 1px solid var(--line); background: var(--accent-soft); color: var(--accent);
  border-radius: 6px; padding: 3px 9px; font-size: 12.5px; cursor: pointer;
}
.term-chip:hover { border-color: var(--accent); }
.draft-actions { display: flex; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 14px; }
.draft-actions button {
  background: var(--accent); color: #fff; border: none; border-radius: 8px;
  padding: 8px 18px; cursor: pointer; font-size: 15px;
}

/* 草稿列表页卡片 */
.drafts-intro { color: var(--muted); }
.draft-card {
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--panel); padding: 4px 18px 14px; margin: 16px 0;
}
.draft-meta { font-size: 12.5px; color: var(--muted); margin: -.2em 0 .6em; }
.draft-st { padding: 0 8px; border-radius: 9px; border: 1px solid var(--line); }
.draft-body { white-space: normal; }

@media (max-width: 720px) {
  .sidebar { position: fixed; left: -260px; }
  .content { padding: 18px; }
  .draft-editor { grid-template-columns: 1fr; }
}