:root{
  --ink:#0b0b0c; --ink2:#161617; --ink3:#232324;
  --paper:#ffffff; --wash:#f4f4f5; --line:#e7e7e9;
  --mut:#71717a; --radius:16px;
  --shadow:0 10px 30px rgba(0,0,0,.08);
  --sidebar-w:272px;
}
*{font-family:'Inter',system-ui,sans-serif}
h1,h2,h3,.brand-text strong,.stat-num{font-family:'Space Grotesk','Inter',sans-serif}
body{background:var(--wash);color:var(--ink);overflow-x:hidden}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:#c9c9cd;border-radius:99px;border:2px solid var(--wash)}
.sidebar ::-webkit-scrollbar-thumb{background:#3a3a3d;border-color:var(--ink)}

/* progress bar */
#route-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:2000;pointer-events:none;opacity:0;transition:opacity .2s}
#route-progress.on{opacity:1}
#route-progress span{display:block;height:100%;width:30%;background:#000;border-radius:0 99px 99px 0;animation:slidebar 1s infinite ease-in-out}
@keyframes slidebar{0%{margin-left:-30%}100%{margin-left:100%}}

.app-shell{display:flex;min-height:100vh}

/* ===== SIDEBAR (black) ===== */
.sidebar{width:var(--sidebar-w);background:linear-gradient(180deg,#0b0b0c 0%,#131314 60%,#0b0b0c 100%);color:#ececee;position:sticky;top:0;height:100vh;display:flex;flex-direction:column;flex-shrink:0;z-index:1040;transition:margin .3s ease,transform .3s ease;border-right:1px solid #000}
body.side-collapsed .sidebar{margin-left:calc(var(--sidebar-w) * -1)}
.brand{display:flex;align-items:center;gap:12px;padding:20px 18px 16px}
.brand-mark{width:42px;height:42px;border-radius:12px;background:#fff;color:#000;font-weight:800;font-size:22px;display:grid;place-items:center;box-shadow:0 6px 18px rgba(255,255,255,.15)}
.brand-text strong{font-size:17px;letter-spacing:.5px}.brand-text strong span{background:#fff;color:#000;padding:0 6px;border-radius:6px;margin-left:4px}
.brand-text small{display:block;color:#a1a1aa;font-size:10px;letter-spacing:3px}
.btn-close-sidebar{background:none;border:1px solid #333;color:#fff;border-radius:8px;margin-left:auto;padding:4px 8px}
.side-scroll{flex:1;overflow-y:auto;padding:4px 14px 14px}
.side-label{font-size:10.5px;letter-spacing:2.5px;text-transform:uppercase;color:#71717a;margin:14px 8px 8px}
.side-link{display:flex;align-items:center;gap:11px;color:#d4d4d8;text-decoration:none;padding:10px 12px;border-radius:11px;font-size:14px;font-weight:500;border:1px solid transparent;transition:.18s;width:100%}
.side-link i{font-size:16px;width:20px;text-align:center;opacity:.9}
.side-link:hover{background:#1d1d1f;color:#fff}
.side-link.active{background:#fff;color:#000;font-weight:700;box-shadow:0 8px 20px rgba(255,255,255,.12)}
.side-link.sub{padding:8px 12px 8px 16px;font-size:13.5px;color:#a1a1aa}
.side-link.sub.active{color:#000}
.side-link .dot{width:6px;height:6px;border-radius:99px;background:currentColor;opacity:.6;flex-shrink:0}
.side-link .count-pill{margin-left:auto;background:#fff;color:#000;font-size:11px;font-weight:800;border-radius:99px;padding:1px 9px}
.side-group{display:flex;align-items:center;justify-content:space-between;width:100%;background:none;border:none;color:#d4d4d8;padding:10px 12px;border-radius:11px;font-size:14px;font-weight:600;margin-top:2px}
.side-group:hover{background:#1d1d1f;color:#fff}
.sg-left{display:flex;gap:11px;align-items:center}.sg-left i{font-size:16px;width:20px;text-align:center}
.sg-arrow{font-size:12px;transition:transform .25s;color:#71717a}
.side-group[aria-expanded="true"] .sg-arrow{transform:rotate(180deg);color:#fff}
.sub-links{margin:2px 0 6px 19px;padding-left:12px;border-left:1px dashed #333;display:flex;flex-direction:column;gap:2px}
.side-card{margin:18px 4px 6px;background:#fff;color:#000;border-radius:var(--radius);padding:16px;text-align:center}
.side-card-icon{width:38px;height:38px;border-radius:12px;background:#000;color:#fff;display:grid;place-items:center;margin:0 auto 8px}
.side-card p{font-size:12px;color:#52525b}
.side-footer{display:flex;align-items:center;gap:10px;padding:14px 16px;border-top:1px solid #262628}
.side-footer strong{display:block;font-size:13px}.side-footer small{color:#a1a1aa;font-size:11px}
.side-footer .logout{margin-left:auto;color:#a1a1aa;cursor:pointer}.side-footer .logout:hover{color:#fff}
.avatar-sm{width:36px;height:36px;border-radius:50%;background:#2a2a2d;color:#fff;display:grid;place-items:center;font-weight:800;font-size:13px;flex-shrink:0}
.avatar-sm.dark{background:#000;color:#fff}
.sidebar-backdrop{display:none}

/* ===== MAIN / TOPBAR (white) ===== */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:12px 26px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.tb-left{display:flex;align-items:center;gap:12px;flex:1;min-width:0}
.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:17px;color:var(--ink);transition:.18s;position:relative}
.icon-btn:hover{background:#000;color:#fff;border-color:#000}
.ping-dot{position:absolute;top:9px;right:10px;width:8px;height:8px;border-radius:99px;background:#000;border:2px solid #fff}
.ping-dot.red{background:#dc2626;animation:blink 1.4s infinite}
@keyframes blink{50%{opacity:.35}}
.tb-search{display:flex;align-items:center;gap:10px;background:var(--wash);border:1px solid var(--line);border-radius:12px;padding:9px 14px;flex:1;max-width:460px}
.tb-search input{border:none;background:none;outline:none;flex:1;font-size:13.5px;min-width:0}
.tb-search kbd{background:#000;color:#fff;border-radius:6px;font-size:11px;padding:2px 8px}
.tb-right{display:flex;align-items:center;gap:10px}
.tb-divider{width:1px;height:28px;background:var(--line)}
.profile-btn{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:#fff;border-radius:14px;padding:5px 12px 5px 5px}
.profile-btn strong{display:block;font-size:13px;line-height:1.1}.profile-btn small{color:var(--mut);font-size:11px}
.drop-panel{width:360px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:0;overflow:hidden}
.drop-panel.mini{width:250px;padding-bottom:8px}
.drop-head{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.drop-list{max-height:320px;overflow:auto}
.drop-item{display:flex;gap:11px;align-items:flex-start;padding:12px 16px;text-decoration:none;color:inherit;border-bottom:1px solid #f1f1f3}
.drop-item:hover{background:#fafafa}
.drop-item strong{display:block;font-size:13px}.drop-item small{color:var(--mut);font-size:12px}
.di-icon{width:36px;height:36px;border-radius:11px;background:#000;color:#fff;display:grid;place-items:center;flex-shrink:0}
.di-icon.warn{background:#fff;border:1.5px solid #000}
.drop-item .badge{margin-left:auto;flex-shrink:0}
.drop-foot{display:flex;justify-content:center;gap:6px;padding:11px;font-size:13px;font-weight:700;color:#000;text-decoration:none}
.drop-foot:hover{background:#000;color:#fff}

/* ===== CONTENT ===== */
.content{padding:26px;flex:1}
#page-transition{transition:opacity .22s ease,transform .22s ease}
#page-transition.switching{opacity:0;transform:translateY(14px)}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.page-head h2{font-weight:800;font-size:26px;margin:0}
.page-head p{color:var(--mut);margin:2px 0 0;font-size:13.5px}
.crumb{font-size:12px;color:var(--mut)}
.card-mono{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 2px 10px rgba(0,0,0,.04)}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;position:relative;overflow:hidden;transition:.2s;height:100%}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.stat-card.dark{background:#0b0b0c;color:#fff;border-color:#000}
.stat-card .s-icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;font-size:19px;background:#000;color:#fff}
.stat-card.dark .s-icon{background:#fff;color:#000}
.stat-num{font-size:27px;font-weight:800;margin:10px 0 0}
.stat-lbl{font-size:13px;color:var(--mut)}.stat-card.dark .stat-lbl{color:#a1a1aa}
.trend{font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px}
.trend.up{background:#dcfce7;color:#15803d}.trend.down{background:#fee2e2;color:#b91c1c}
.trend.flat{background:#f4f4f5;color:#000}
.tbl-wrap{overflow:auto;border-radius:0 0 var(--radius) var(--radius)}
table.mono{margin:0;font-size:13.5px}
table.mono thead th{background:#0b0b0c;color:#fff;font-size:11.5px;letter-spacing:1px;text-transform:uppercase;padding:12px 14px;white-space:nowrap;border:none}
table.mono tbody td{padding:12px 14px;vertical-align:middle;border-color:#f1f1f3}
table.mono tbody tr:hover{background:#fafafa}
.p-img{width:38px;height:38px;border-radius:10px;background:#000;color:#fff;display:grid;place-items:center;font-weight:800;flex-shrink:0}
.btn-dark{border-radius:11px;font-weight:600}
.btn-outline-dark{border-radius:11px;font-weight:600}
.form-control,.form-select{border-radius:11px;font-size:14px}
.form-control:focus,.form-select:focus{border-color:#000;box-shadow:0 0 0 3px rgba(0,0,0,.12)}
.chip{font-size:11.5px;font-weight:700;padding:4px 11px;border-radius:99px;border:1.5px solid #000}
.chip.fill{background:#000;color:#fff}
.sect-title{font-weight:800;font-size:16px;margin:0}
.skel{border-radius:12px;background:linear-gradient(90deg,#eee 25%,#f7f7f8 50%,#eee 75%);background-size:200% 100%;animation:sh 1.1s infinite}
@keyframes sh{to{background-position:-200% 0}}
.empty-ill{border:2px dashed var(--line);border-radius:var(--radius);padding:34px;text-align:center;color:var(--mut)}
.app-foot{padding:14px 26px;color:var(--mut);font-size:12px;border-top:1px solid var(--line);background:#fff}

/* responsive */
@media(max-width:991px){
  .sidebar{position:fixed;left:0;top:0;transform:translateX(-105%)}
  body.side-open .sidebar{transform:none}
  body.side-collapsed .sidebar{margin-left:0}
  .sidebar-backdrop{display:block;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:1039;opacity:0;pointer-events:none;transition:.25s}
  body.side-open .sidebar-backdrop{opacity:1;pointer-events:auto}
  .content{padding:16px}.topbar{padding:10px 14px}.tb-search kbd{display:none}
  .login-card{padding:32px 24px}
}

/* ===== LOGIN (discreet centered) ===== */
.login-body{background:#f4f4f5;min-height:100vh;position:relative;overflow-x:hidden}
.login-bg{position:fixed;inset:0;pointer-events:none}
.login-bg span{position:absolute;border-radius:50%;filter:blur(100px)}
.login-bg span:nth-child(1){width:480px;height:480px;background:#e4e4e7;top:-160px;right:-140px}
.login-bg span:nth-child(2){width:380px;height:380px;background:#fafafa;border:1px solid #e7e7e9;bottom:-140px;left:-120px}
.login-bg span:nth-child(3){width:220px;height:220px;background:#d4d4d8;top:38%;left:12%;opacity:.6}
.login-center{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 18px;position:relative;z-index:2}
.login-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:42px 40px;width:100%;max-width:410px;box-shadow:0 24px 70px rgba(0,0,0,.12)}
.login-card.shake{animation:shake .4s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px)}50%{transform:translateX(8px)}75%{transform:translateX(-5px)}}
.login-avatar{width:58px;height:58px;border-radius:18px;background:#000;color:#fff;display:grid;place-items:center;font-size:24px;margin-bottom:18px}
.login-card h2{font-weight:800;font-size:25px;margin:0}
.login-group .input-group-text{background:#f4f4f5;border:1px solid var(--line);color:#000}
.login-group .form-control{border-left:none;padding:11px 14px}
.login-group .form-control:focus{box-shadow:none;border-color:var(--line)}
.login-group:focus-within{box-shadow:0 0 0 3px rgba(0,0,0,.12);border-radius:12px}
.login-btn{padding:12px;border-radius:13px;font-weight:700;font-size:15px}
.login-foot{text-align:center;color:var(--mut);font-size:12px;margin:20px 0 0}
.login-secure{margin-top:18px;font-size:12.5px;color:var(--mut);display:flex;align-items:center}