:root {
  --bg: #0f1217;
  --panel: #161b22;
  --panel-2: #1b212b;
  --border: #242c38;
  --text: #dde3ea;
  --text-dim: #8b95a3;
  --accent: #e8b34b;
  --accent-2: #f0c86e;
  --ok: #3fb27f;
  --warn: #e0a53a;
  --err: #e05d5d;
  --radius: 12px;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.6 -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.hidden { display: none !important; }
.muted { color: var(--text-dim); }
.mono { font-family: var(--mono); font-size: 0.92em; }

a { color: var(--accent-2); text-decoration: none; }

/* ── 登录 ── */
.login {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(1000px 500px at 20% -10%, rgba(232,179,75,.08), transparent 60%),
    radial-gradient(800px 500px at 90% 110%, rgba(63,178,127,.06), transparent 60%),
    var(--bg);
}
.login-card {
  width: 320px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px 28px; text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
}
.login-logo, .brand-logo {
  width: 52px; height: 52px; margin: 0 auto 14px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #c8932f);
  color: #14100a; font-weight: 800; font-size: 26px; display: flex; align-items: center; justify-content: center;
}
.login-card h1 { font-size: 20px; margin-bottom: 4px; }
.login-sub { color: var(--text-dim); margin-bottom: 20px; }
.login-error { color: var(--err); margin-top: 12px; min-height: 18px; font-size: 13px; }

/* ── 布局 ── */
#app { display: flex; height: 100vh; overflow: hidden; }
.sidebar {
  width: 216px; flex: 0 0 216px; background: var(--panel);
  border-right: 1px solid var(--border); display: flex; flex-direction: column; padding: 18px 14px;
}
.brand { display: flex; align-items: center; gap: 12px; padding: 0 6px 18px; border-bottom: 1px solid var(--border); margin-bottom: 14px; }
.brand-logo { width: 38px; height: 38px; margin: 0; font-size: 20px; border-radius: 10px; }
.brand-text b { display: block; font-size: 16px; }
.brand-text span { color: var(--text-dim); font-size: 11px; }

.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 9px;
  color: var(--text-dim); font-size: 14px; transition: background .15s, color .15s;
}
.nav-item svg { width: 18px; height: 18px; fill: currentColor; }
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: rgba(232,179,75,.12); color: var(--accent-2); }
.sidebar-foot { padding-top: 12px; border-top: 1px solid var(--border); }

.content { flex: 1; overflow-y: auto; padding: 24px 30px; }
.view { max-width: 1200px; margin: 0 auto; }
.view-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; gap: 16px; flex-wrap: wrap; }
.view-head h2 { font-size: 22px; }
.head-tools { display: flex; gap: 10px; align-items: center; }

/* ── 通用控件 ── */
.btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 13px; transition: all .15s;
}
.btn:hover { border-color: #37414f; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #14100a; font-weight: 600; }
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn-ghost { background: transparent; }
.input {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  padding: 8px 12px; border-radius: 8px; font-size: 13px; outline: none;
}
.input:focus { border-color: var(--accent); }
.load-state { color: var(--text-dim); padding: 30px 0; }

.chips { display: flex; gap: 6px; }
.chip {
  border: 1px solid var(--border); background: transparent; color: var(--text-dim);
  padding: 5px 12px; border-radius: 999px; cursor: pointer; font-size: 12px; transition: all .15s;
}
.chip:hover { color: var(--text); border-color: #37414f; }
.chip.active { background: rgba(232,179,75,.14); border-color: var(--accent); color: var(--accent-2); }

/* ── 总览卡片 ── */
.ov-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; margin-bottom: 20px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.card h3 { font-size: 12px; letter-spacing: .08em; color: var(--text-dim); text-transform: uppercase; margin-bottom: 12px; }
.stat-row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed #1f2731; font-size: 13px; }
.stat-row:last-child { border-bottom: none; }
.stat-row .v { font-family: var(--mono); }
.bar { height: 8px; background: var(--panel-2); border-radius: 99px; overflow: hidden; margin: 6px 0 10px; }
.bar i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--accent), #c8932f); }
.bar.warn i { background: linear-gradient(90deg, #e0a53a, #d07b1f); }
.bar.ok i { background: linear-gradient(90deg, #3fb27f, #2e9a6c); }
.big-num { font-family: var(--mono); font-size: 30px; line-height: 1.1; }
.ov-cron table, .tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid #1f2731; }
.tbl th { color: var(--text-dim); font-weight: 500; font-size: 12px; }
.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 11px; }
.pill.ok { background: rgba(63,178,127,.15); color: var(--ok); }
.pill.err { background: rgba(224,93,93,.15); color: var(--err); }
.pill.warn { background: rgba(224,165,58,.15); color: var(--warn); }
.pill.off { background: #232a35; color: var(--text-dim); }
.week-bars { display: flex; align-items: flex-end; gap: 10px; height: 120px; padding-top: 8px; }
.week-bars .wb { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 6px; }
.week-bars .wb .wv { font-size: 11px; color: var(--text-dim); }
.week-bars .wb .barcol { width: 100%; max-width: 42px; background: linear-gradient(180deg, var(--accent), #a9761f); border-radius: 5px 5px 2px 2px; min-height: 3px; }
.week-bars .wb .wlabel { font-size: 11px; color: var(--text-dim); }

/* ── 对话 ── */
.session-list { display: flex; flex-direction: column; gap: 8px; }
.sess-item {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 13px 16px; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 14px; transition: border-color .15s;
}
.sess-item:hover { border-color: var(--accent); }
.sess-title { font-size: 14px; font-weight: 600; }
.sess-sub { color: var(--text-dim); font-size: 12px; margin-top: 3px; display: flex; gap: 12px; flex-wrap: wrap; }
.sess-right { text-align: right; color: var(--text-dim); font-size: 12px; flex-shrink: 0; }

/* 会话详情 */
.detail-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.detail-head h3 { font-size: 18px; }
.msg { display: flex; gap: 12px; margin-bottom: 14px; }
.msg .who { flex: 0 0 56px; text-align: right; font-size: 12px; color: var(--text-dim); padding-top: 2px; }
.msg .bubble { flex: 1; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; overflow-wrap: break-word; }
.msg.user .bubble { border-color: rgba(232,179,75,.35); }
.msg .bubble .md-body { font-size: 14px; }
.msg .meta { font-size: 11px; color: var(--text-dim); margin-top: 8px; }
.tool-line { font-family: var(--mono); font-size: 12px; color: var(--text-dim); background: var(--panel-2); border-radius: 6px; padding: 4px 8px; display: inline-block; margin-top: 6px; }

/* ── 邮箱 ── */
.mail-layout { display: grid; grid-template-columns: 180px 1fr; gap: 16px; align-items: start; }
.mail-folders { display: flex; flex-direction: column; gap: 2px; }
.folder { padding: 8px 12px; border-radius: 8px; cursor: pointer; color: var(--text-dim); font-size: 13px; display: flex; justify-content: space-between; }
.folder:hover { background: var(--panel-2); color: var(--text); }
.folder.active { background: rgba(232,179,75,.12); color: var(--accent-2); }
.mail-list-item {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 11px 14px; cursor: pointer; margin-bottom: 8px;
}
.mail-list-item:hover { border-color: var(--accent); }
.mail-subject { font-size: 14px; font-weight: 600; }
.mail-subject.unread { color: var(--accent-2); }
.mail-from { color: var(--text-dim); font-size: 12px; margin-top: 2px; }
.mail-msg-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.mail-msg-card h3 { margin-bottom: 6px; }
.mail-msg-meta { color: var(--text-dim); font-size: 12px; margin-bottom: 16px; }
.mail-body { font-size: 14px; overflow-wrap: break-word; }
.mail-body img { max-width: 100%; }

/* ── 知识库 ── */
.wiki-layout { display: grid; grid-template-columns: 260px 1fr; gap: 16px; align-items: start; }
.wiki-tree { max-height: calc(100vh - 150px); overflow-y: auto; padding-right: 4px; }
.tree-dir { font-size: 13px; }
.tree-dir-head { display: flex; align-items: center; gap: 6px; padding: 5px 8px; border-radius: 7px; cursor: pointer; color: var(--text-dim); }
.tree-dir-head:hover { background: var(--panel-2); color: var(--text); }
.tree-dir-head .tw { color: var(--accent); font-size: 11px; width: 14px; }
.tree-children { margin-left: 16px; border-left: 1px solid #1f2731; padding-left: 6px; }
.tree-file { display: flex; gap: 6px; align-items: center; padding: 4px 8px; border-radius: 7px; cursor: pointer; color: var(--text-dim); font-size: 13px; }
.tree-file:hover { background: var(--panel-2); color: var(--text); }
.tree-file.active { background: rgba(232,179,75,.12); color: var(--accent-2); }
.wiki-main { min-height: 300px; }
.wiki-empty { color: var(--text-dim); padding: 40px; text-align: center; }
.wiki-page { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 24px 28px; }
.wiki-page h1:first-child { margin-top: 0; }

/* markdown 正文 */
.md-body { line-height: 1.75; }
.md-body h1, .md-body h2, .md-body h3 { margin: 1.2em 0 .5em; line-height: 1.3; }
.md-body h1 { font-size: 22px; border-bottom: 1px solid var(--border); padding-bottom: .3em; }
.md-body h2 { font-size: 18px; }
.md-body h3 { font-size: 15px; }
.md-body p, .md-body ul, .md-body ol, .md-body blockquote, .md-body table { margin: .7em 0; }
.md-body ul, .md-body ol { padding-left: 1.5em; }
.md-body code { background: var(--panel-2); padding: 2px 6px; border-radius: 5px; font-family: var(--mono); font-size: .9em; }
.md-body pre { background: #0c0f14; border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow-x: auto; margin: .8em 0; }
.md-body pre code { background: none; padding: 0; }
.md-body blockquote { border-left: 3px solid var(--accent); padding-left: 12px; color: var(--text-dim); }
.md-body table { border-collapse: collapse; }
.md-body th, .md-body td { border: 1px solid var(--border); padding: 6px 10px; }
.md-body th { background: var(--panel-2); }
.md-body img { max-width: 100%; border-radius: 8px; }

/* ── 弹窗 ── */
.modal { position: fixed; inset: 0; background: rgba(8,10,13,.7); display: flex; align-items: center; justify-content: center; z-index: 50; }
.modal-card { width: 380px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 24px; }
.modal-card h3 { margin-bottom: 16px; }
.modal-card label { display: block; font-size: 12px; color: var(--text-dim); margin-bottom: 12px; }
.modal-card .input { width: 100%; margin-top: 4px; }
.modal-card label.row { display: flex; align-items: center; gap: 8px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }

@media (max-width: 900px) {
  .sidebar { flex-basis: 62px; padding: 14px 8px; }
  .sidebar .brand-text, .nav-item span, .sidebar-foot { display: none; }
  .nav-item { justify-content: center; }
  .content { padding: 16px; }
  .mail-layout, .wiki-layout { grid-template-columns: 1fr; }
}