:root {
  --bg: #0f172a;
  --panel: #1e293b;
  --panel-2: #263449;
  --border: #334155;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --green: #4ade80;
  --red: #f87171;
  --yellow: #facc15;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Segoe UI", "Microsoft YaHei", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }

.login-wrap { display: flex; align-items: center; justify-content: center; height: 100vh; }
.login-box { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 32px; width: 320px; display: flex; flex-direction: column; gap: 12px; }
.login-box h2 { font-size: 18px; text-align: center; margin-bottom: 8px; }
.login-box input { padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); outline: none; }
.login-box button { padding: 10px; border-radius: 8px; border: none; background: var(--accent); color: #0f172a; font-weight: 600; cursor: pointer; }
.login-error { color: var(--red); font-size: 12px; min-height: 16px; }
.hint { color: var(--muted); font-size: 12px; text-align: center; }

.layout { display: flex; min-height: 100vh; }
.sidebar { width: 200px; background: var(--panel); border-right: 1px solid var(--border); padding: 16px 8px; flex-shrink: 0; }
.logo { font-weight: 700; padding: 0 12px 20px; font-size: 15px; }
.nav-item { padding: 10px 12px; border-radius: 8px; cursor: pointer; color: var(--muted); margin-bottom: 4px; }
.nav-item:hover { background: var(--panel-2); color: var(--text); }
.nav-item.active { background: var(--accent); color: #0f172a; font-weight: 600; }
.logout { display: block; padding: 10px 12px; margin-top: 24px; color: var(--red); cursor: pointer; }

.main { flex: 1; padding: 24px 32px; }
.page-title { font-size: 20px; font-weight: 700; margin-bottom: 20px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 24px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.card .num { font-size: 28px; font-weight: 700; margin-top: 6px; }
.card .label { color: var(--muted); font-size: 12px; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px; margin-bottom: 20px; }
.panel h3 { margin-bottom: 12px; font-size: 15px; }
.panel-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.panel textarea, .panel select, .panel input { padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); outline: none; }
.panel input, .panel select { min-width: 160px; }
.panel textarea { width: 100%; min-height: 90px; font-family: inherit; }
.panel label { color: var(--muted); font-size: 12px; }

.btn { padding: 8px 14px; border-radius: 8px; border: none; background: var(--accent); color: #0f172a; font-weight: 600; cursor: pointer; }
.btn.gray { background: var(--panel-2); color: var(--text); }
.btn.green { background: var(--green); color: #0f172a; }
.btn.red { background: var(--red); color: #0f172a; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 12px; font-weight: 600; }
.ok { color: var(--green); }
.bad { color: var(--red); }
.muted { color: var(--muted); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 12px; }
.tag.published { background: #14532d; color: var(--green); }
.tag.pending_review { background: #422006; color: var(--yellow); }
.tag.draft { background: #1e3a5f; color: var(--accent); }

.chart-box { width: 100%; height: 260px; }
@media (max-width: 720px) { .sidebar { display: none; } }