:root {
  --bg: #0D1117;
  --surface: #161B22;
  --surface2: #21262D;
  --border: #30363D;
  --text: #E6EDF3;
  --text2: #C9D1D9;
  --muted: #8B949E;
  --blue: #58A6FF;
  --purple: #BC8CFF;
  --green: #7EE787;
  --amber: #E3B341;
  --red: #F85149;
  --coral: #F0997B;
  --btn-green: #238636;
  --btn-purple: #8957E5;
  --btn-blue: #1F6FEB;
  --mono: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.6;
}
a { color: var(--blue); text-decoration: none; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.hidden { display: none !important; }

input, textarea, select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: inherit;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--blue); }

button {
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  padding: 10px 16px;
}
button:active { transform: scale(0.98); }
button:disabled { opacity: 0.55; cursor: default; }
.btn-primary { background: var(--btn-green); color: #fff; min-height: 44px; font-size: 15px; }
.btn-blue { background: var(--btn-blue); color: #fff; min-height: 44px; }
.btn-purple { background: var(--btn-purple); color: #fff; }
.btn-ghost { background: none; border: 1px solid var(--border); color: var(--text2); }
.btn-ghost.blue { color: var(--blue); }
.btn-ghost.green { color: var(--green); border-color: rgba(126, 231, 135, 0.4); }
.btn-ghost.red { color: var(--red); }
.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: 6px; }

.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 10px;
  vertical-align: middle;
  white-space: nowrap;
}
.badge.green { background: rgba(126, 231, 135, 0.15); color: var(--green); }
.badge.purple { background: rgba(188, 140, 255, 0.15); color: var(--purple); }
.badge.amber { background: rgba(227, 179, 65, 0.15); color: var(--amber); }
.badge.gray { background: var(--surface2); color: var(--muted); }
.badge.red { background: rgba(248, 81, 73, 0.15); color: var(--red); }

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .brand { font-weight: 600; font-size: 14px; display: flex; align-items: center; gap: 10px; min-width: 0; }
.topbar .brand .title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar .who { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--muted); flex-shrink: 0; }

.tabs {
  display: flex;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 8px;
  position: sticky;
  top: 49px;
  z-index: 10;
  overflow-x: auto;
}
.tabs .tab {
  padding: 11px 14px;
  font-size: 14px;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
  user-select: none;
}
.tabs .tab.active[data-tab="docs"] { color: var(--blue); border-bottom-color: var(--blue); }
.tabs .tab.active[data-tab="wall"] { color: var(--purple); border-bottom-color: var(--purple); }
.tabs .tab.active[data-tab="works"] { color: var(--green); border-bottom-color: var(--green); }
.tabs .tab.active[data-tab="config"] { color: var(--amber); border-bottom-color: var(--amber); }

.container { max-width: 760px; margin: 0 auto; padding: 18px 16px 80px; }

.statusbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  padding: 5px 14px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  z-index: 9;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.doc { font-size: 15px; color: var(--text2); }
.doc h1 { font-size: 20px; color: var(--text); margin: 18px 0 10px; }
.doc h2 { font-size: 17px; color: var(--text); margin: 22px 0 10px; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.doc h3 { font-size: 15px; color: var(--text); margin: 16px 0 8px; }
.doc p { margin: 10px 0; }
.doc li { margin: 5px 0; }
.doc blockquote { margin: 12px 0; padding: 8px 14px; border-left: 3px solid var(--border); color: var(--muted); }
.doc blockquote p { margin: 4px 0; }
.doc table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 13px; }
.doc th, .doc td { border: 1px solid var(--border); padding: 7px 10px; text-align: left; }
.doc th { background: var(--surface); }
.doc code { font-family: var(--mono); font-size: 13px; background: var(--surface2); padding: 2px 6px; border-radius: 5px; color: var(--text); }
.doc img { max-width: 100%; }
.doc hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

.codeblock { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; margin: 12px 0; overflow: hidden; }
.codeblock .cb-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 12px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}
.codeblock pre { margin: 0; padding: 12px; overflow-x: auto; }
.codeblock pre code { background: none; padding: 0; font-size: 13px; }

.checkpoint-box {
  border: 1px solid rgba(126, 231, 135, 0.4);
  background: rgba(126, 231, 135, 0.07);
  border-radius: 10px;
  padding: 14px 16px;
  margin: 16px 0;
}
.checkpoint-box .cp-label { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 10px; color: var(--text); }
.checkpoint-box .cp-btn { width: 100%; min-height: 46px; background: var(--btn-green); color: #fff; font-size: 15px; font-weight: 600; }
.checkpoint-box .cp-btn.done { background: var(--surface2); color: var(--green); }
.checkpoint-box .cp-progress { display: flex; align-items: center; gap: 10px; margin-top: 10px; }
.checkpoint-box .bar { flex: 1; height: 6px; background: var(--surface2); border-radius: 3px; overflow: hidden; }
.checkpoint-box .bar > div { height: 100%; background: var(--green); border-radius: 3px; transition: width 0.4s; }
.checkpoint-box .cp-count { font-family: var(--mono); font-size: 12px; color: var(--green); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: 14px;
  padding: 5px 13px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
}
.chip.active { border-color: var(--blue); color: var(--blue); background: rgba(88, 166, 255, 0.1); }

.pinned {
  border-left: 3px solid var(--amber);
  background: rgba(227, 179, 65, 0.07);
  padding: 10px 14px;
  margin-bottom: 12px;
}
.pinned .pin-head { font-size: 11px; color: var(--amber); margin-bottom: 4px; }

.msg { display: flex; gap: 10px; margin-bottom: 14px; }
.msg .m-body { flex: 1; min-width: 0; }
.msg .m-head { font-size: 12px; margin-bottom: 3px; }
.msg .m-head .m-name { font-weight: 600; }
.msg .m-head .m-time { color: var(--muted); margin-left: 8px; }
.msg .m-text { font-size: 14px; color: var(--text2); white-space: pre-wrap; word-break: break-word; }
.msg .m-code { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.msg .m-code .mc-head { display: flex; justify-content: space-between; align-items: center; padding: 5px 10px; border-bottom: 1px solid var(--border); }
.msg .m-code pre { margin: 0; padding: 10px 12px; font-family: var(--mono); font-size: 12.5px; color: var(--text2); white-space: pre-wrap; word-break: break-word; }

.composer {
  position: fixed;
  bottom: 26px;
  left: 0;
  right: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 10px 0;
  z-index: 9;
}
.composer .inner { max-width: 760px; margin: 0 auto; padding: 0 16px; display: flex; gap: 8px; align-items: flex-end; }
.composer textarea { flex: 1; resize: none; min-height: 42px; max-height: 130px; }
.composer .send { background: var(--btn-purple); color: #fff; min-height: 42px; padding: 0 20px; flex-shrink: 0; }

.works-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.work-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.work-card .w-thumb { height: 70px; display: flex; align-items: center; justify-content: center; font-size: 28px; font-weight: 600; }
.work-card .w-body { padding: 12px; }
.work-card .w-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; word-break: break-all; }
.work-card .w-meta { font-size: 11px; color: var(--muted); margin-bottom: 10px; }
.work-card .w-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(1, 4, 9, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 16px;
}
.modal { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; width: 100%; max-width: 440px; }
.modal h3 { margin: 0 0 14px; font-size: 16px; }
.modal .field { margin-bottom: 12px; }
.modal .field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.modal .field input { width: 100%; }

.config-card { max-width: 460px; margin: 0 auto; }
.config-card .row-label { font-family: var(--mono); font-size: 11px; color: var(--muted); margin: 14px 0 4px; }
.config-card .row-value { display: flex; align-items: center; gap: 8px; }
.config-card .row-value .val { font-family: var(--mono); font-size: 13px; flex: 1; word-break: break-all; }

.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 99;
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}
.toast.show { opacity: 1; }

.admin-layout { display: flex; min-height: calc(100vh - 49px); }
.admin-side { width: 200px; flex-shrink: 0; background: var(--surface); border-right: 1px solid var(--border); padding: 12px 8px; }
.admin-side .nav-item {
  display: block;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  margin-bottom: 2px;
  user-select: none;
}
.admin-side .nav-item.active { background: rgba(88, 166, 255, 0.12); color: var(--blue); }
.admin-main { flex: 1; padding: 18px 20px 60px; min-width: 0; }
.admin-main h2 { font-size: 15px; margin: 22px 0 10px; color: var(--text); }
.admin-main h2:first-child { margin-top: 0; }
.sec-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  margin-bottom: 6px;
  font-size: 13.5px;
}
.sec-row.current { border-color: var(--blue); background: rgba(88, 166, 255, 0.07); }
.sec-row .sec-actions { display: flex; gap: 6px; align-items: center; flex-shrink: 0; }

.board-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.board-table th, .board-table td { border-bottom: 1px solid var(--border); padding: 7px 6px; text-align: center; }
.board-table th { color: var(--muted); font-weight: normal; }
.board-table td:first-child, .board-table th:first-child { text-align: left; white-space: nowrap; }
.board-table .ok { color: var(--green); }
.board-table .no { color: var(--border); }
.board-table tr.stuck { background: rgba(248, 81, 73, 0.07); }

@media (max-width: 700px) {
  .admin-layout { flex-direction: column; }
  .admin-side { width: auto; display: flex; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .works-grid { grid-template-columns: 1fr 1fr; }
}