:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1c232c;
  --border: #262d38;
  --text: #e6edf3;
  --muted: #8b98a8;
  --accent: #3b82f6;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

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

/* ---------- 登录 ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(1200px 600px at 50% -10%, #1b2738 0%, var(--bg) 60%);
}
.login-card {
  width: 360px;
  padding: 32px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
}
.login-card h1 { font-size: 20px; margin: 0 0 6px; }
.login-card p.sub { color: var(--muted); margin: 0 0 24px; font-size: 13px; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 208px;
  flex-shrink: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 18px 12px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.brand { font-weight: 600; font-size: 15px; padding: 6px 10px 18px; }
.brand span { color: var(--accent); }
.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
  margin-bottom: 4px;
}
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: rgba(59, 130, 246, 0.14); color: #93c5fd; }
.nav-badge {
  margin-left: auto;
  background: var(--red);
  color: #fff;
  font-size: 11px;
  padding: 1px 6px;
  border-radius: 9px;
}
.main { flex: 1; padding: 24px 28px 60px; min-width: 0; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.page-head h2 { font-size: 18px; margin: 0; }

/* ---------- 卡片 ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 22px; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
}
.card .label { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.card .value { font-size: 22px; font-weight: 600; }
.card .value small { font-size: 12px; color: var(--muted); font-weight: 400; margin-left: 4px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--muted); font-weight: 500; background: rgba(255,255,255,0.02); white-space: nowrap; }
tbody tr:hover { background: rgba(255,255,255,0.02); }
td.wrap { max-width: 320px; word-break: break-all; }
.empty { padding: 40px; text-align: center; color: var(--muted); }

/* ---------- 表单 ---------- */
input, textarea, select {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 11px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 80px; }
label.field { display: block; margin-bottom: 12px; }
label.field span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 6px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  cursor: pointer;
  transition: 0.15s;
  white-space: nowrap;
}
.btn:hover { border-color: #3a4553; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #2f6fd8; }
.btn.green { background: var(--green); border-color: var(--green); color: #06240f; }
.btn.danger { color: #fca5a5; border-color: rgba(239,68,68,0.4); }
.btn.danger:hover { background: rgba(239,68,68,0.12); }
.btn.sm { padding: 5px 10px; font-size: 12px; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; }
.toolbar input { max-width: 280px; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 12px; }
.tag.green { background: rgba(34,197,94,0.15); color: #4ade80; }
.tag.red { background: rgba(239,68,68,0.15); color: #f87171; }
.tag.amber { background: rgba(245,158,11,0.15); color: #fbbf24; }
.tag.gray { background: rgba(139,152,168,0.15); color: var(--muted); }

/* ---------- 弹窗 ---------- */
.mask {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.modal {
  width: 480px; max-width: 92vw; max-height: 86vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 22px;
}
.modal h3 { margin: 0 0 18px; font-size: 16px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }

.toast {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  background: var(--panel-2); border: 1px solid var(--border);
  padding: 10px 18px; border-radius: 8px; z-index: 200;
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.toast.err { border-color: rgba(239,68,68,0.5); color: #fca5a5; }
.toast.ok { border-color: rgba(34,197,94,0.5); color: #86efac; }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.muted { color: var(--muted); }
.hidden { display: none !important; }
.stock-low { color: var(--amber); }
.stock-out { color: var(--red); }