/* ── Reset & Base ── */
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#08090d;
  --bg2:#0d0f16;
  --bg3:#13151e;
  --border:#1e2130;
  --border2:#252838;
  --text:#e2e0ec;
  --text2:#8a8da8;
  --text3:#4a4d68;
  --accent:#6c63ff;
  --accent2:#8b82ff;
  --accent-glow:rgba(108,99,255,.18);
  --green:#22c55e;
  --red:#ef4444;
  --orange:#f59e0b;
  --cyan:#06b6d4;
  --pink:#ec4899;
  --sidebar-w:220px;
  --header-h:60px;
  --radius:10px;
  --radius-lg:14px;
}
html{height:100%}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;font-size:14px;line-height:1.6;min-height:100%;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:14px}

/* ── Layout ── */
.portal-wrap{display:flex;min-height:100vh}

/* ── Sidebar ── */
.sidebar{width:var(--sidebar-w);background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:50}
.sidebar-logo{display:flex;align-items:center;gap:9px;padding:0 20px;height:var(--header-h);border-bottom:1px solid var(--border);font-weight:700;font-size:15px;flex-shrink:0}
.sidebar-logo .logo-icon{width:28px;height:28px;background:linear-gradient(135deg,#6c63ff,#a78bfa);border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:2px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;font-size:13.5px;color:var(--text2);transition:all .15s;cursor:pointer}
.nav-item:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-item.active{color:var(--text);background:rgba(108,99,255,.15);color:var(--accent2)}
.nav-item .nav-icon{font-size:16px;width:18px;text-align:center;flex-shrink:0}
.nav-item .nav-badge{margin-left:auto;background:var(--red);color:#fff;font-size:10px;font-weight:700;padding:1px 6px;border-radius:10px}
.nav-item .nav-tag{margin-left:auto;background:rgba(239,68,68,.15);color:#f87171;font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;border:1px solid rgba(239,68,68,.2)}
.sidebar-footer{padding:12px 10px;border-top:1px solid var(--border)}
.sidebar-user{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;transition:background .15s}
.sidebar-user:hover{background:rgba(255,255,255,.05)}
.user-avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,#6c63ff,#a78bfa);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.user-info{flex:1;min-width:0}
.user-name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-balance{font-size:11.5px;color:var(--green)}

/* ── Main content ── */
.main{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh}

/* ── Top header ── */
.topbar{height:var(--header-h);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 28px;gap:12px;position:sticky;top:0;background:rgba(8,9,13,.9);backdrop-filter:blur(12px);z-index:40}
.topbar-title{font-size:15px;font-weight:600}
.topbar-sub{font-size:13px;color:var(--text3)}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:10px}

/* ── Page content ── */
.page-content{padding:28px;flex:1}

/* ── Buttons ── */
.btn{padding:8px 18px;border-radius:8px;font-size:13.5px;font-weight:500;border:none;transition:all .15s;display:inline-flex;align-items:center;gap:6px}
.btn-primary{background:linear-gradient(135deg,#6c63ff,#8b82ff);color:#fff;box-shadow:0 0 16px rgba(108,99,255,.3)}
.btn-primary:hover{opacity:.9;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text2);border:1px solid var(--border2)}
.btn-ghost:hover{color:var(--text);border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.05)}
.btn-danger{background:rgba(239,68,68,.15);color:#f87171;border:1px solid rgba(239,68,68,.2)}
.btn-danger:hover{background:rgba(239,68,68,.25)}
.btn-sm{padding:5px 12px;font-size:12px;border-radius:6px}
.btn-icon{padding:7px;border-radius:7px;background:transparent;border:1px solid var(--border2);color:var(--text2)}
.btn-icon:hover{color:var(--text);border-color:rgba(255,255,255,.2);background:rgba(255,255,255,.05)}

/* ── Cards ── */
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px}
.card-title{font-size:13px;color:var(--text2);margin-bottom:6px}
.card-value{font-size:26px;font-weight:700;letter-spacing:-.02em}
.card-sub{font-size:12px;color:var(--text3);margin-top:4px}

/* ── Stat grid ── */
.stat-grid{display:grid;gap:12px}
.stat-grid-4{grid-template-columns:repeat(4,1fr)}
.stat-grid-2{grid-template-columns:repeat(2,1fr)}

/* ── Table ── */
.table-wrap{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}
table{width:100%;border-collapse:collapse}
th{font-size:12px;font-weight:600;color:var(--text3);letter-spacing:.04em;text-transform:uppercase;padding:12px 16px;background:var(--bg3);border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}
td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:13px;color:var(--text2)}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,255,255,.02)}
.empty-state{text-align:center;padding:60px 20px;color:var(--text3)}
.empty-icon{font-size:36px;margin-bottom:12px}
.empty-text{font-size:14px;margin-bottom:16px}

/* ── Badges / Tags ── */
.tag{display:inline-block;padding:2px 8px;border-radius:5px;font-size:11px;font-weight:600}
.tag-green{background:rgba(34,197,94,.12);color:#4ade80;border:1px solid rgba(34,197,94,.2)}
.tag-red{background:rgba(239,68,68,.12);color:#f87171;border:1px solid rgba(239,68,68,.2)}
.tag-orange{background:rgba(245,158,11,.12);color:#fbbf24;border:1px solid rgba(245,158,11,.2)}
.tag-blue{background:rgba(6,182,212,.12);color:#22d3ee;border:1px solid rgba(6,182,212,.2)}
.tag-purple{background:rgba(108,99,255,.12);color:#a78bfa;border:1px solid rgba(108,99,255,.2)}
.tag-gray{background:rgba(255,255,255,.06);color:var(--text2);border:1px solid var(--border2)}

/* ── Form ── */
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:13px;color:var(--text2);margin-bottom:7px;font-weight:500}
.form-input{width:100%;padding:9px 13px;background:var(--bg3);border:1px solid var(--border2);border-radius:8px;color:var(--text);font-size:13.5px;outline:none;transition:border-color .15s}
.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(108,99,255,.12)}
.form-input::placeholder{color:var(--text3)}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a8da8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:36px;cursor:pointer}
.form-hint{font-size:12px;color:var(--text3);margin-top:5px}

/* ── Divider ── */
.divider{height:1px;background:var(--border);margin:20px 0}

/* ── Modal ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:200;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s}
.modal-overlay.open{opacity:1;pointer-events:all}
.modal{background:var(--bg2);border:1px solid var(--border2);border-radius:var(--radius-lg);padding:28px;width:480px;max-width:90vw;transform:translateY(16px);transition:transform .2s}
.modal-overlay.open .modal{transform:translateY(0)}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.modal-title{font-size:16px;font-weight:700}
.modal-close{width:28px;height:28px;border-radius:6px;background:transparent;border:none;color:var(--text3);font-size:18px;display:flex;align-items:center;justify-content:center;cursor:pointer}
.modal-close:hover{background:rgba(255,255,255,.07);color:var(--text)}
.modal-footer{display:flex;gap:10px;justify-content:flex-end;margin-top:22px}

/* ── Section heading ── */
.sec-heading{font-size:16px;font-weight:700;margin-bottom:6px}
.sec-desc{font-size:13px;color:var(--text2);margin-bottom:20px}

/* ── Filter bar ── */
.filter-bar{display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.filter-bar .form-input{width:auto;flex:1;min-width:180px}

/* ── Pagination ── */
.pagination{display:flex;align-items:center;gap:8px;padding:12px 16px;border-top:1px solid var(--border);font-size:13px;color:var(--text3)}
.pagination .total{flex:1}
.page-size-wrap{display:flex;align-items:center;gap:8px}

/* ── Scrollbar ── */
::-webkit-scrollbar{width:4px;height:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#2e3148;border-radius:3px}

/* ── Mobile menu button (hidden on desktop) ── */
.mobile-menu-btn{display:none;align-items:center;justify-content:center;width:36px;height:36px;background:transparent;border:1px solid var(--border2);border-radius:8px;color:var(--text2);font-size:18px;cursor:pointer;flex-shrink:0}
.mobile-menu-btn:hover{color:var(--text);background:rgba(255,255,255,.05)}

/* ── Sidebar overlay (mobile) ── */
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:49}
.sidebar-overlay.open{display:block}

/* ── Responsive ── */
@media(max-width:768px){
  /* Sidebar */
  .sidebar{transform:translateX(-100%);transition:transform .25s ease;z-index:50}
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0}

  /* Mobile menu button */
  .mobile-menu-btn{display:flex}

  /* Topbar */
  .topbar{padding:0 16px;gap:8px}
  .topbar-sub{display:none}

  /* Page content */
  .page-content{padding:16px}

  /* Stat grids */
  .stat-grid-4{grid-template-columns:repeat(2,1fr)}
  .stat-grid-2{grid-template-columns:1fr}

  /* Cards */
  .card-value{font-size:22px}

  /* Tables: horizontal scroll */
  .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
  table{min-width:600px}

  /* Filter bar: stack vertically */
  .filter-bar{flex-direction:column;align-items:stretch}
  .filter-bar .form-input{min-width:unset;width:100%}
  .filter-bar .btn{width:100%;justify-content:center}

  /* Modal */
  .modal{width:100%;max-width:100%;margin:0;border-radius:var(--radius-lg) var(--radius-lg) 0 0;position:fixed;bottom:0;left:0;right:0}
  .modal-overlay{align-items:flex-end}

  /* Pagination */
  .pagination{flex-wrap:wrap;gap:6px}

  /* Topbar actions */
  .topbar-actions .btn span{display:none}
}

@media(max-width:480px){
  .stat-grid-4{grid-template-columns:1fr 1fr}
  .stat-grid-2{grid-template-columns:1fr}
  .page-content{padding:12px}
  .card{padding:14px}
  .card-value{font-size:20px}
}