:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-2: #f9fafb;
  --border: #e4e7ec;
  --text: #101828;
  --muted: #667085;
  --accent: #1570ef;
  --accent-weak: #eff8ff;
  --ok: #12b76a;
  --warn: #f79009;
  --err: #f04438;
  --code-bg: #0f1729;
  --code-text: #e2e8f0;
  --radius: 10px;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c111d;
    --panel: #161b26;
    --panel-2: #1f242f;
    --border: #2b3242;
    --text: #f5f5f6;
    --muted: #94969c;
    --accent: #528bff;
    --accent-weak: #172554;
    --code-bg: #0a0d14;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
code, pre, .mono { font-family: var(--mono); font-size: 12.5px; }
h1, h2, h3 { margin: 0; font-weight: 600; }
h1 { font-size: 20px; }
h2 { font-size: 15px; }
h3 { font-size: 14px; }

/* ---- 布局 ---- */
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 16px; font-weight: 600; }
.brand .logo {
  width: 30px; height: 30px; border-radius: 8px; background: var(--accent); color: #fff;
  display: grid; place-items: center; font-size: 13px; font-weight: 700;
}
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 8px;
  color: var(--muted); cursor: pointer; user-select: none; border: 0; background: none; font: inherit; text-align: left;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: var(--accent-weak); color: var(--accent); font-weight: 500; }
.nav-item .badge { margin-left: auto; }
.sidebar .spacer { flex: 1; }
.main { padding: 24px 28px 48px; min-width: 0; }
.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head .actions { margin-left: auto; display: flex; gap: 8px; }
.sub { color: var(--muted); font-size: 13px; }

/* ---- 卡片 / 网格 ---- */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); }
.card-head { display: flex; align-items: center; gap: 8px; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.card-head .actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.card-body { padding: 16px; }
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.stat { padding: 16px; }
.stat .label { color: var(--muted); font-size: 12.5px; }
.stat .value { font-size: 22px; font-weight: 600; margin-top: 4px; font-variant-numeric: tabular-nums; }
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 8px 12px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }

/* ---- 表单 ---- */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field > label { font-weight: 500; font-size: 13px; }
.field .hint { color: var(--muted); font-size: 12.5px; }
input[type="text"], input[type="password"], input[type="number"], input[type="url"], select, textarea {
  font: inherit; color: var(--text); background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; padding: 7px 10px; width: 100%; outline: none;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
textarea { font-family: var(--mono); font-size: 12.5px; resize: vertical; min-height: 90px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent); }
input:disabled { background: var(--panel-2); color: var(--muted); }
.check { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; user-select: none; }
.check input { accent-color: var(--accent); width: 15px; height: 15px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--border); border-radius: 999px;
  padding: 4px 10px; cursor: pointer; user-select: none; font-size: 12.5px; background: var(--panel);
  transition: border-color 150ms ease, background-color 150ms ease;
}
.chip.on { border-color: var(--accent); background: var(--accent-weak); color: var(--accent); }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.seg button { border: 0; background: var(--panel); padding: 6px 14px; font: inherit; color: var(--muted); cursor: pointer; }
.seg button + button { border-left: 1px solid var(--border); }
.seg button.on { background: var(--accent-weak); color: var(--accent); font-weight: 500; }

/* ---- 按钮 ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 500; padding: 7px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--border); background: var(--panel); color: var(--text);
  transition: transform 160ms var(--ease-out), background-color 150ms ease, border-color 150ms ease;
  white-space: nowrap;
}
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { color: var(--err); }
.btn.small { padding: 4px 10px; font-size: 12.5px; }
.btn.ghost { border-color: transparent; background: transparent; }
@media (hover: hover) and (pointer: fine) {
  .btn:hover:not(:disabled) { background: var(--panel-2); }
  .btn.primary:hover:not(:disabled) { background: color-mix(in srgb, var(--accent) 88%, #000); }
  .btn.ghost:hover:not(:disabled) { background: var(--panel-2); }
}

/* ---- 徽标 / 状态 ---- */
.badge {
  display: inline-flex; align-items: center; gap: 5px; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 500; background: var(--panel-2); color: var(--muted); border: 1px solid var(--border);
}
.badge.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); background: color-mix(in srgb, var(--ok) 10%, transparent); }
.badge.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 35%, transparent); background: color-mix(in srgb, var(--warn) 10%, transparent); }
.badge.err { color: var(--err); border-color: color-mix(in srgb, var(--err) 35%, transparent); background: color-mix(in srgb, var(--err) 10%, transparent); }
.badge.info { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, transparent); background: var(--accent-weak); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); display: inline-block; flex: none; }
.dot.ok { background: var(--ok); }
.dot.warn { background: var(--warn); }
.dot.err { background: var(--err); }

/* ---- 表格 ---- */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { color: var(--muted); font-weight: 500; font-size: 12.5px; background: var(--panel-2); }
.table tr:last-child td { border-bottom: 0; }
.table tr.clickable { cursor: pointer; }
@media (hover: hover) and (pointer: fine) { .table tr.clickable:hover td { background: var(--panel-2); } }
.empty { padding: 32px; text-align: center; color: var(--muted); }
.truncate { max-width: 420px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---- 代码 / 日志 ---- */
pre.code {
  margin: 0; background: var(--code-bg); color: var(--code-text); border-radius: 8px; padding: 12px 14px;
  overflow: auto; max-height: 420px; white-space: pre-wrap; word-break: break-all;
}
.logs { font-family: var(--mono); font-size: 12.5px; max-height: calc(100vh - 210px); overflow: auto; padding: 8px 0; }
.log-line { display: grid; grid-template-columns: 76px 52px 150px 1fr; gap: 10px; padding: 2px 16px; white-space: pre-wrap; word-break: break-all; }
.log-line .t { color: var(--muted); }
.log-line .src { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lv-debug { color: var(--muted); }
.lv-info { color: var(--accent); }
.lv-warn { color: var(--warn); }
.lv-error { color: var(--err); }

/* ---- 调试台聊天 ---- */
.chat { height: 440px; overflow: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; background: var(--panel-2); }
.bubble { max-width: 78%; padding: 8px 12px; border-radius: 12px; white-space: pre-wrap; word-break: break-word; }
.bubble.me { align-self: flex-end; background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
.bubble.bot { align-self: flex-start; background: var(--panel); border: 1px solid var(--border); border-bottom-left-radius: 4px; }
.bubble.sys { align-self: center; background: transparent; color: var(--muted); font-size: 12px; padding: 2px; }
.bubble .meta { font-size: 11.5px; opacity: 0.75; margin-top: 4px; }
.bubble .kb { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.bubble .kb-row { display: flex; gap: 6px; }
.bubble .kb-row .btn { flex: 1; }

/* ---- 登录 ---- */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: 100%; max-width: 380px; padding: 28px; }
.auth-card h1 { margin-bottom: 6px; }
.auth-card .sub { margin-bottom: 20px; }

/* ---- 弹窗 / 提示 ---- */
.modal-mask { position: fixed; inset: 0; background: rgb(15 23 42 / 0.45); display: grid; place-items: center; padding: 24px; z-index: 50; }
.modal { width: 100%; max-width: 560px; max-height: calc(100vh - 48px); overflow: auto; }
.modal.wide { max-width: 820px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
.modal-enter-active, .modal-leave-active { transition: opacity 200ms var(--ease-out); }
.modal-enter-active .modal, .modal-leave-active .modal { transition: transform 200ms var(--ease-out), opacity 200ms var(--ease-out); }
.modal-leave-active, .modal-leave-active .modal { transition-duration: 140ms; }
.modal-enter-from, .modal-leave-to { opacity: 0; }
.modal-enter-from .modal, .modal-leave-to .modal { transform: scale(0.96); opacity: 0; }

.toasts { position: fixed; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 60; }
.toast {
  background: var(--panel); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 8px;
  padding: 10px 14px; box-shadow: 0 8px 24px rgb(0 0 0 / 0.12); max-width: 380px; word-break: break-word;
}
.toast.err { border-left-color: var(--err); }
.toast.ok { border-left-color: var(--ok); }
.toast-enter-active { transition: transform 220ms var(--ease-out), opacity 220ms var(--ease-out); }
.toast-leave-active { transition: opacity 150ms ease; }
.toast-enter-from { transform: translateY(8px); opacity: 0; }
.toast-leave-to { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  .modal-enter-from .modal, .modal-leave-to .modal, .toast-enter-from { transform: none; }
  .btn:active:not(:disabled) { transform: none; }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--border); }
  .sidebar .spacer, .brand { display: none; }
  .main { padding: 16px; }
  .grid-2 { grid-template-columns: 1fr; }
  .log-line { grid-template-columns: 70px 1fr; }
  .log-line .src, .log-line .lv { display: none; }
}