/* ==========================================================================
   ops-hub 后台样式
   设计原则：信息密度优先（运维天天看，不追求花哨）、表格清晰、状态色统一
   ========================================================================== */

:root {
  --bg:        #f5f6f7;
  --panel:     #ffffff;
  --border:    #e5e6eb;
  --border-2:  #d0d3d9;
  --text:      #1f2329;
  --text-2:    #646a73;
  --text-3:    #8f959e;

  --primary:   #1664ff;
  --primary-d: #0e4fd1;
  --primary-l: #eaf1ff;

  --green:     #00b42a;
  --green-l:   #e8fff0;
  --orange:    #ff7d00;
  --orange-l:  #fff7e8;
  --red:       #f53f3f;
  --red-l:     #ffece8;
  --purple:    #722ed1;
  --purple-l:  #f5e8ff;

  --radius:    8px;
  --shadow:    0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* ---------- 登录页 ---------- */
.login-wrap {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 24px;
  background: linear-gradient(135deg, #1664ff 0%, #0e4fd1 100%);
}
.login-card {
  width: 100%; max-width: 360px;
  background: #fff; border-radius: 12px;
  padding: 40px 32px 32px;
  box-shadow: 0 8px 32px rgba(0,0,0,.16);
  text-align: center;
}
.login-logo { font-size: 40px; line-height: 1; margin-bottom: 8px; }
.login-card h1 { margin: 0 0 4px; font-size: 22px; font-weight: 600; letter-spacing: .5px; }
.login-sub { margin: 0 0 28px; font-size: 13px; color: var(--text-2); }
.login-card label { display: block; text-align: left; margin-bottom: 16px; }
.login-card label span { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.login-card input {
  width: 100%; padding: 10px 12px;
  border: 1px solid var(--border-2); border-radius: 6px;
  font-size: 14px; outline: none; transition: border-color .15s;
}
.login-card input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-l); }
.login-card button[type=submit] {
  width: 100%; padding: 11px;
  background: var(--primary); color: #fff;
  border: none; border-radius: 6px;
  font-size: 15px; font-weight: 500; cursor: pointer;
  transition: background .15s;
}
.login-card button[type=submit]:hover { background: var(--primary-d); }
.login-card button[type=submit]:disabled { background: var(--text-3); cursor: not-allowed; }
.login-err { margin-top: 12px; font-size: 13px; color: var(--red); min-height: 18px; }

/* ---------- 布局 ---------- */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px; flex-shrink: 0;
  background: #fff; border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.brand {
  display: flex; align-items: center; gap: 8px;
  padding: 18px 20px 14px;
  font-size: 17px; font-weight: 600;
  border-bottom: 1px solid var(--border);
}
.brand-icon { font-size: 20px; }

.team-picker { padding: 14px 16px; border-bottom: 1px solid var(--border); }
.team-picker label { display: block; font-size: 12px; color: var(--text-3); margin-bottom: 6px; }
.team-picker select {
  width: 100%; padding: 7px 8px;
  border: 1px solid var(--border-2); border-radius: 6px;
  font-size: 13px; background: #fff; outline: none; cursor: pointer;
}
.team-picker select:focus { border-color: var(--primary); }
.team-hint { margin-top: 6px; font-size: 11px; color: var(--text-3); line-height: 1.5; }

#nav { flex: 1; overflow-y: auto; padding: 8px 0; }
.nav-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 20px; font-size: 14px; color: var(--text-2);
  cursor: pointer; border-left: 3px solid transparent;
  transition: background .12s, color .12s;
}
.nav-item:hover { background: #f7f8fa; color: var(--text); }
.nav-item.active {
  background: var(--primary-l); color: var(--primary);
  border-left-color: var(--primary); font-weight: 500;
}
.nav-item .nav-badge {
  background: var(--red); color: #fff;
  font-size: 11px; line-height: 1; padding: 3px 6px;
  border-radius: 9px; min-width: 18px; text-align: center;
}
.nav-group { padding: 12px 20px 4px; font-size: 11px; color: var(--text-3); letter-spacing: .5px; }

.sidebar-foot {
  border-top: 1px solid var(--border);
  padding: 12px 16px;
  display: flex; flex-direction: column; gap: 6px;
}
.who { font-size: 12px; color: var(--text-2); margin-bottom: 4px; line-height: 1.5; }
.link-btn {
  text-align: left; background: none; border: none;
  padding: 4px 0; font-size: 13px; color: var(--text-2);
  cursor: pointer;
}
.link-btn:hover { color: var(--primary); }
.link-btn.danger:hover { color: var(--red); }

/* ---------- 主区 ---------- */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 56px; flex-shrink: 0;
  background: #fff; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar h2 { margin: 0; font-size: 16px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.badge-time {
  font-size: 12px; padding: 4px 10px; border-radius: 4px;
  background: var(--green-l); color: var(--green);
}
.badge-time.off { background: var(--orange-l); color: var(--orange); }

.content { flex: 1; padding: 20px 24px 40px; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px;
  margin-bottom: 16px; box-shadow: var(--shadow);
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.card-head h3 { margin: 0; font-size: 15px; font-weight: 600; }
.card-head .sub { font-size: 12px; color: var(--text-3); margin-top: 3px; font-weight: 400; }

/* ---------- 指标卡 ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.kpi {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow);
}
.kpi .kpi-label { font-size: 12px; color: var(--text-3); margin-bottom: 6px; }
.kpi .kpi-value { font-size: 24px; font-weight: 600; line-height: 1.2; }
.kpi .kpi-sub { font-size: 11px; color: var(--text-3); margin-top: 4px; }
.kpi.blue   .kpi-value { color: var(--primary); }
.kpi.green  .kpi-value { color: var(--green); }
.kpi.orange .kpi-value { color: var(--orange); }
.kpi.red    .kpi-value { color: var(--red); }
.kpi.purple .kpi-value { color: var(--purple); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
table.tbl th {
  text-align: left; padding: 10px 12px;
  background: #fafafa; color: var(--text-2);
  font-weight: 500; font-size: 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
table.tbl td {
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.tbl tr:hover td { background: #fafbfc; }
table.tbl tr:last-child td { border-bottom: none; }
table.tbl .num { text-align: right; font-variant-numeric: tabular-nums; }
table.tbl .nowrap { white-space: nowrap; }
table.tbl .muted { color: var(--text-3); font-size: 12px; }

/* ---------- 标签 ---------- */
.tag {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 12px; line-height: 18px; white-space: nowrap;
}
.tag.green  { background: var(--green-l);  color: var(--green); }
.tag.orange { background: var(--orange-l); color: var(--orange); }
.tag.red    { background: var(--red-l);    color: var(--red); }
.tag.blue   { background: var(--primary-l);color: var(--primary); }
.tag.purple { background: var(--purple-l); color: var(--purple); }
.tag.gray   { background: #f2f3f5;         color: var(--text-2); }

/* ---------- 按钮 ---------- */
button.btn, a.btn {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 14px; border-radius: 6px;
  font-size: 13px; cursor: pointer;
  border: 1px solid var(--border-2); background: #fff; color: var(--text);
  text-decoration: none; transition: all .12s;
}
button.btn:hover, a.btn:hover { border-color: var(--primary); color: var(--primary); }
button.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
button.btn.primary:hover { background: var(--primary-d); color: #fff; }
button.btn.danger { border-color: var(--red); color: var(--red); }
button.btn.danger:hover { background: var(--red); color: #fff; }
button.btn.success { background: var(--green); border-color: var(--green); color: #fff; }
button.btn.success:hover { filter: brightness(.94); color:#fff; }
button.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 4px; border: 1px solid var(--border-2); background: #fff; cursor: pointer; }
.btn-sm:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm.danger { color: var(--red); border-color: #ffd6cf; }
.btn-sm.danger:hover { background: var(--red); color:#fff; border-color: var(--red); }

/* ---------- 表单 ---------- */
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.form-row label .req { color: var(--red); margin-left: 2px; }
.form-row input[type=text],
.form-row input[type=password],
.form-row input[type=number],
.form-row input[type=date],
.form-row input[type=time],
.form-row select,
.form-row textarea {
  width: 100%; padding: 8px 10px;
  border: 1px solid var(--border-2); border-radius: 6px;
  font-size: 13px; font-family: inherit; outline: none;
  transition: border-color .15s;
}
.form-row textarea { resize: vertical; min-height: 80px; line-height: 1.6; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-l);
}
.form-row .field-tip { font-size: 11px; color: var(--text-3); margin-top: 5px; line-height: 1.5; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0 14px; }

/* ---------- 过滤条 ---------- */
.filters {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  margin-bottom: 14px;
}
.filters input[type=text], .filters select, .filters input[type=date] {
  padding: 6px 10px; border: 1px solid var(--border-2);
  border-radius: 6px; font-size: 13px; outline: none;
}
.filters input[type=text] { min-width: 180px; }
.filters input:focus, .filters select:focus { border-color: var(--primary); }
.filters .spacer { flex: 1; }

/* ---------- 分页 ---------- */
.pager {
  display: flex; align-items: center; justify-content: center;
  gap: 8px; margin-top: 16px; font-size: 13px; color: var(--text-2);
}
.pager button {
  padding: 5px 12px; border: 1px solid var(--border-2);
  background: #fff; border-radius: 5px; cursor: pointer; font-size: 13px;
}
.pager button:disabled { opacity: .45; cursor: not-allowed; }
.pager button:not(:disabled):hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,.45);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.modal {
  background: #fff; border-radius: 10px;
  width: 100%; max-width: 640px; max-height: 88vh;
  display: flex; flex-direction: column;
  box-shadow: 0 12px 40px rgba(0,0,0,.2);
}
.modal.wide { max-width: 880px; }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 22px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.modal-head h3 { margin: 0; font-size: 16px; font-weight: 600; }
.modal-close {
  background: none; border: none; font-size: 24px; line-height: 1;
  color: var(--text-3); cursor: pointer; padding: 0 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px 22px; overflow-y: auto; flex: 1; }
.modal-foot {
  display: flex; justify-content: flex-end; gap: 10px;
  padding: 14px 22px; border-top: 1px solid var(--border); flex-shrink: 0;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed; top: 24px; left: 50%; transform: translateX(-50%);
  z-index: 200; padding: 10px 20px; border-radius: 8px;
  font-size: 14px; color: #fff; background: var(--text);
  box-shadow: 0 4px 16px rgba(0,0,0,.18);
  animation: toastIn .18s ease-out;
}
.toast.ok { background: var(--green); }
.toast.err { background: var(--red); }
.toast.warn { background: var(--orange); }
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, -8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------- 空状态 / 加载 ---------- */
.empty { text-align: center; padding: 48px 20px; color: var(--text-3); font-size: 13px; }
.empty .empty-icon { font-size: 36px; margin-bottom: 10px; opacity: .5; }
.loading { text-align: center; padding: 40px; color: var(--text-3); font-size: 13px; }

/* ---------- 会话工作台 ---------- */
.session-list { display: flex; flex-direction: column; gap: 10px; }
.session-item {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 16px; background: #fff;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  transition: border-color .15s;
}
.session-item:hover { border-color: var(--primary); }
.session-item.is-mine { border-left: 3px solid var(--green); }
.session-item.is-waiting { border-left: 3px solid var(--orange); }
.session-main { min-width: 0; flex: 1; }
.session-title { font-size: 14px; font-weight: 500; margin-bottom: 4px; }
.session-meta { font-size: 12px; color: var(--text-3); }
.session-meta span { margin-right: 12px; }
.session-actions { flex-shrink: 0; display: flex; gap: 8px; }

/* ---------- 会话详情 ---------- */
.chat-box {
  background: #f7f8fa; border-radius: var(--radius);
  padding: 14px; max-height: 400px; overflow-y: auto;
  margin-bottom: 14px;
}
.chat-msg { margin-bottom: 12px; display: flex; flex-direction: column; }
.chat-msg .chat-who { font-size: 11px; color: var(--text-3); margin-bottom: 3px; }
.chat-msg .chat-text {
  display: inline-block; padding: 8px 12px; border-radius: 8px;
  font-size: 13px; line-height: 1.6; max-width: 86%;
  white-space: pre-wrap; word-break: break-word;
}
.chat-msg.emp  { align-items: flex-start; }
.chat-msg.emp  .chat-text { background: #fff; border: 1px solid var(--border); }
.chat-msg.op   { align-items: flex-end; }
.chat-msg.op   .chat-text { background: var(--primary); color: #fff; }
.chat-msg.bot  { align-items: flex-start; }
.chat-msg.bot  .chat-text { background: var(--purple-l); color: #4b1d99; border: 1px solid #e0c8ff; }
.chat-msg.sys  { align-items: center; }
.chat-msg.sys  .chat-text { background: #eceef0; color: var(--text-2); font-size: 12px; }

/* ---------- 代码块 ---------- */
pre.code {
  background: #f7f8fa; border: 1px solid var(--border);
  border-radius: 6px; padding: 12px 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px; line-height: 1.65; overflow-x: auto;
  white-space: pre-wrap; word-break: break-all; margin: 0;
}

/* ---------- 折线/柱状（纯 CSS 简易图表） ---------- */
.bars { display: flex; align-items: flex-end; gap: 4px; height: 120px; padding-top: 8px; }
.bars .bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; min-width: 0; }
.bars .bar {
  width: 100%; background: var(--primary); border-radius: 3px 3px 0 0;
  min-height: 2px; transition: height .3s;
}
.bars .bar.ai { background: var(--purple); }
.bars .bar-label { font-size: 10px; color: var(--text-3); white-space: nowrap; transform: rotate(-45deg); transform-origin: center; margin-top: 2px; }

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; flex-wrap: wrap; }
  .brand { border-bottom: none; }
  .team-picker { border-bottom: none; }
  #nav { display: flex; overflow-x: auto; padding: 0; }
  .nav-item { border-left: none; border-bottom: 3px solid transparent; white-space: nowrap; }
  .nav-item.active { border-left: none; border-bottom-color: var(--primary); }
  .nav-group { display: none; }
  .sidebar-foot { border-top: none; flex-direction: row; align-items: center; }
  .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }
  .content { padding: 14px; }
  .topbar { padding: 0 14px; }
}