:root {
  --bg: #0f1420;
  --panel: #1a2130;
  --panel2: #232c3f;
  --border: #2e3a52;
  --text: #e6ebf5;
  --muted: #8b96ad;
  --primary: #3b82f6;
  --primary-h: #2563eb;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.hidden { display: none !important; }

/* ---------- 登录 ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 36px;
  width: 360px;
}
.login-card h1 { font-size: 22px; margin-bottom: 4px; }
.login-card .sub { color: var(--muted); margin-bottom: 24px; }
label { display: block; margin: 12px 0 6px; color: var(--muted); font-size: 12px; }
input, select, textarea {
  width: 100%;
  background: var(--panel2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 14px;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
.error { color: var(--red); font-size: 12px; min-height: 18px; margin-top: 8px; }

.btn {
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 14px;
}
.btn:hover { border-color: var(--primary); }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-h); }
.btn-danger { color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-green { background: var(--green); border-color: var(--green); color: #04150b; }
.btn-block { width: 100%; margin-top: 16px; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-ghost { background: transparent; margin-top: 8px; }

/* ---------- 布局 ---------- */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 210px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 18px 0;
  flex-shrink: 0;
}
.brand { font-weight: 700; font-size: 16px; padding: 0 20px 16px; border-bottom: 1px solid var(--border); }
#nav { padding: 10px 0; }
.nav-item {
  display: block;
  padding: 11px 20px;
  color: var(--muted);
  cursor: pointer;
  border-left: 3px solid transparent;
  text-decoration: none;
}
.nav-item:hover { color: var(--text); background: var(--panel2); }
.nav-item.active { color: var(--text); border-left-color: var(--primary); background: var(--panel2); }

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.page-title { font-size: 16px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 8px; }
.whoami { color: var(--muted); margin-right: 6px; font-size: 13px; }

.content { padding: 20px; overflow-y: auto; flex: 1; }

/* ---------- 卡片 / 表格 ---------- */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 18px;
}
.card h3 { font-size: 15px; margin-bottom: 14px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.stat { background: var(--panel2); border-radius: 8px; padding: 14px; }
.stat .num { font-size: 22px; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: 12px; margin-top: 4px; }
.stat .num.green { color: var(--green); }
.stat .num.amber { color: var(--amber); }
.stat .num.red { color: var(--red); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--muted); font-weight: 500; white-space: nowrap; }
tr:hover td { background: var(--panel2); }

.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; }
.badge.green { background: rgba(34,197,94,.15); color: var(--green); }
.badge.red { background: rgba(239,68,68,.15); color: var(--red); }
.badge.amber { background: rgba(245,158,11,.15); color: var(--amber); }
.badge.gray { background: rgba(139,150,173,.15); color: var(--muted); }
.badge.blue { background: rgba(59,130,246,.15); color: var(--primary); }

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; align-items: center; }
.toolbar input, .toolbar select { width: auto; }
.pager { display: flex; gap: 8px; align-items: center; margin-top: 14px; color: var(--muted); }
.pager button:disabled { opacity: .4; cursor: not-allowed; }
.empty { color: var(--muted); text-align: center; padding: 30px; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12px; }
.muted { color: var(--muted); }

/* ---------- 模态框 ---------- */
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 440px;
  max-width: 92vw;
  max-height: 88vh;
  overflow-y: auto;
}
.modal-card h3 { margin-bottom: 12px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.modal-close { background: none; border: none; color: var(--muted); font-size: 22px; cursor: pointer; }
.modal-body label { margin-top: 10px; }
.modal-actions { display: flex; gap: 10px; margin-top: 18px; justify-content: flex-end; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  background: var(--panel2); border: 1px solid var(--border);
  padding: 10px 18px; border-radius: 8px; z-index: 200; font-size: 13px;
}
.toast.ok { border-color: var(--green); }
.toast.err { border-color: var(--red); }

@media (max-width: 800px) {
  .sidebar { width: 64px; }
  .nav-item span { display: none; }
  .brand { font-size: 0; padding: 16px 10px; }
  .brand::after { content: "A"; font-size: 16px; }
}