:root{
  --sb-w: 250px;
  --sb-bg: #1b2432;
  --sb-bg2: #222d3d;
  --sb-accent: #3b82f6;
  --sb-text: #aebacb;
  --sb-text-active: #fff;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:#f2f4f8;color:#2b333f}
a{text-decoration:none}

.pbx-wrap{display:flex;min-height:100vh}

/* Sidebar */
.pbx-sidebar{
  width:var(--sb-w);background:var(--sb-bg);color:var(--sb-text);
  position:fixed;top:0;left:0;bottom:0;display:flex;flex-direction:column;
  transition:transform .2s ease;z-index:1000;
}
.pbx-brand{
  display:flex;align-items:center;gap:9px;padding:16px 20px;
  font-size:17px;font-weight:700;color:#fff;background:var(--sb-bg2);
}
.pbx-brand i{color:var(--sb-accent)}
.pbx-nav{padding:12px 10px;display:flex;flex-direction:column;gap:2px}
.pbx-nav-label{font-size:11px;text-transform:uppercase;letter-spacing:.05em;opacity:.5;padding:14px 12px 6px}
.pbx-nav .nav-link{
  display:flex;align-items:center;gap:12px;color:var(--sb-text);
  padding:11px 14px;border-radius:8px;font-size:14.5px;font-weight:500;
}
.pbx-nav .nav-link i{font-size:15px;width:18px;text-align:center}
.pbx-nav .nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.pbx-nav .nav-link.active{background:var(--sb-accent);color:#fff}
.pbx-nav .nav-link.disabled{opacity:.4;cursor:not-allowed}

/* Main */
.pbx-main{flex:1;margin-left:var(--sb-w);display:flex;flex-direction:column;min-width:0}
.pbx-topbar{
  height:60px;background:#fff;border-bottom:1px solid #e5e9f0;
  display:flex;align-items:center;gap:16px;padding:0 22px;position:sticky;top:0;z-index:900;
}
.pbx-burger{border:0;background:none;font-size:22px;color:#5b6675;cursor:pointer;display:none}
.pbx-title{font-size:18px;font-weight:600}
.pbx-top-right{margin-left:auto;display:flex;align-items:center;gap:16px}
.pbx-lang a{color:#8a94a6;font-size:13px;font-weight:600;padding:3px 6px;border-radius:5px}
.pbx-lang a.active{background:var(--sb-accent);color:#fff}
.pbx-logout{margin:0}
.pbx-content{padding:24px;flex:1}

/* Cards */
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:18px;margin-bottom:24px}
.stat-card{
  background:#fff;border-radius:12px;padding:16px 18px;display:flex;align-items:center;gap:14px;
  box-shadow:0 1px 3px rgba(20,30,50,.06);border:1px solid #edf0f5;
}
.stat-ic{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:17px;color:#fff;flex-shrink:0}
.stat-ic.blue{background:#3b82f6}.stat-ic.green{background:#22c55e}.stat-ic.amber{background:#f59e0b}.stat-ic.red{background:#ef4444}
.stat-val{font-size:23px;font-weight:700;line-height:1}
.stat-lbl{font-size:12.5px;color:#8a94a6;margin-top:4px}

.card-box{background:#fff;border-radius:12px;border:1px solid #edf0f5;box-shadow:0 1px 3px rgba(20,30,50,.06);margin-bottom:24px}
.card-box .cb-head{padding:16px 20px;border-bottom:1px solid #eef1f6;font-weight:600;display:flex;align-items:center;gap:8px}
.card-box .cb-body{padding:0}
.card-box table{margin:0}
.badge-soft-green{background:#dcfce7;color:#15803d}
.badge-soft-gray{background:#eef1f6;color:#64748b}
.badge-soft-red{background:#fee2e2;color:#b91c1c}
.badge-soft-amber{background:#fef3c7;color:#b45309}

/* Login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1b2432,#2b3a52)}
.login-card{background:#fff;border-radius:16px;padding:36px 34px;width:360px;max-width:92vw;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.login-brand{text-align:center;font-size:24px;font-weight:700;margin-bottom:4px}
.login-brand i{color:var(--sb-accent)}
.login-sub{text-align:center;color:#8a94a6;font-size:13px;margin-bottom:24px}

@media (max-width:860px){
  .pbx-sidebar{transform:translateX(-100%)}
  body.sb-collapsed .pbx-sidebar{transform:translateX(0)}
  .pbx-main{margin-left:0}
  .pbx-burger{display:block}
}