*,:before,:after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f0f2f7;--surface:#ffffff;--border:#e4e8f0;--border2:#d1d8e8;
  --text:#111827;--text2:#6b7280;--text3:#9ca3af;
  --primary:#1a56db;--primary-h:#1e429f;
  --success:#059669;--danger:#dc2626;--warn:#d97706;
  --sidebar-w:210px;--header-h:50px;--radius:9px;
  --shadow:0 1px 3px rgba(0,0,0,0.07),0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:0 4px 20px rgba(0,0,0,0.1),0 2px 8px rgba(0,0,0,0.06)
}
body{color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,'Inter','Segoe UI',Roboto,sans-serif;font-size:13.5px;line-height:1.5;-webkit-font-smoothing:antialiased}

/* ── Shell ── */
.app-shell{min-height:100vh;display:flex}

/* ── Sidebar ── */
.sidebar{width:var(--sidebar-w);background:#0f172a;flex-direction:column;flex-shrink:0;display:flex;position:fixed;top:0;bottom:0;left:0;z-index:100}
.sidebar-logo{padding:16px 16px 13px;border-bottom:1px solid rgba(255,255,255,0.07)}
.sidebar-logo h2{color:#f1f5f9;font-size:14px;font-weight:700;letter-spacing:-0.2px}
.sidebar-logo p{color:#64748b;margin-top:2px;font-size:10.5px}
.sidebar-nav{flex:1;padding:8px;overflow-y:auto}
.nav-section{color:#475569;letter-spacing:.8px;text-transform:uppercase;padding:11px 8px 4px;font-size:9.5px;font-weight:600}
.nav-link{color:#94a3b8;cursor:pointer;text-align:left;background:0 0;border:none;align-items:center;gap:8px;width:100%;padding:7px 9px;font-size:12.5px;text-decoration:none;transition:all .15s;display:flex;border-radius:7px;margin-bottom:1px}
.nav-link:hover{color:#e2e8f0;background:rgba(255,255,255,0.06)}
.nav-link.active{background:rgba(59,130,246,0.18);color:#93c5fd;font-weight:500}
.nav-link svg{opacity:.6;flex-shrink:0;width:14px;height:14px}
.nav-link.active svg{opacity:1}
.sidebar-footer{border-top:1px solid rgba(255,255,255,0.07);padding:11px 14px;font-size:11.5px}
.sidebar-footer strong{color:#cbd5e1;font-size:12px;display:block;font-weight:500}
.sidebar-footer span{color:#64748b;font-size:11px;margin-top:1px;display:block}

/* ── Main ── */
.main-area{margin-left:var(--sidebar-w);flex-direction:column;flex:1;min-height:100vh;display:flex}
.topbar{height:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);z-index:50;justify-content:space-between;align-items:center;padding:0 20px;display:flex;position:sticky;top:0}
.topbar-title{font-size:14px;font-weight:600;color:var(--text)}
.topbar-right{align-items:center;gap:10px;display:flex}
.page-content{flex:1;padding:18px 20px}

/* ── Cards ── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:12px 16px;display:flex;flex-wrap:wrap;gap:8px}
.card-header h3{font-size:13.5px;font-weight:600;color:var(--text)}
.card-body{padding:16px}

/* ── Buttons ── */
.btn{cursor:pointer;border:1px solid transparent;border-radius:6px;align-items:center;gap:5px;padding:6px 12px;font-size:12.5px;font-weight:500;text-decoration:none;transition:all .15s;display:inline-flex;white-space:nowrap;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 1px 2px rgba(26,86,219,0.2)}
.btn-primary:hover{background:var(--primary-h)}
.btn-outline{color:var(--text2);border-color:var(--border2);background:var(--surface)}
.btn-outline:hover{background:var(--bg);color:var(--text)}
.btn-success{background:var(--success);color:#fff;border-color:var(--success)}
.btn-danger{background:var(--danger);color:#fff}
.btn-ghost{color:var(--text2);background:0 0;border-color:transparent}
.btn-ghost:hover{background:var(--bg);color:var(--text)}
.btn-sm{padding:4px 9px;font-size:11.5px;border-radius:5px}
.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}

/* ── Forms ── */
.form-group{margin-bottom:12px}
.form-label{color:var(--text2);margin-bottom:4px;font-size:12px;font-weight:500;display:block}
.form-control{border:1px solid var(--border2);width:100%;color:var(--text);background:var(--surface);border-radius:6px;outline:none;padding:7px 10px;font-size:13px;transition:border .15s,box-shadow .15s;line-height:1.4}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,86,219,0.1)}
.form-control[readonly]{background:#f8fafc;color:var(--text2)}
.form-control:disabled{background:#f8fafc;color:var(--text3);cursor:not-allowed}
select.form-control{cursor:pointer}
textarea.form-control{resize:vertical;min-height:72px}
.form-row{gap:12px;display:grid}
.form-row.col-2{grid-template-columns:1fr 1fr}
.form-row.col-3{grid-template-columns:1fr 1fr 1fr}
.form-hint{color:var(--text3);margin-top:3px;font-size:11px}
.form-error{color:var(--danger);margin-top:3px;font-size:11.5px}

/* ── Tables ── */
table.data-table{border-collapse:collapse;width:100%;font-size:13px}
.data-table th{text-align:left;color:var(--text3);background:#f8fafc;border-bottom:1px solid var(--border);padding:7px 12px;font-size:10.5px;font-weight:600;letter-spacing:.4px;text-transform:uppercase}
.data-table td{border-bottom:1px solid #f1f5f9;vertical-align:middle;padding:8px 12px;color:var(--text)}
.data-table tr:last-child td{border-bottom:none}
.data-table tr:hover td{background:#fafbfd}
.data-table .num{text-align:right}

/* ── Badges ── */
.badge{border-radius:20px;align-items:center;padding:2px 8px;font-size:10.5px;font-weight:600;display:inline-flex}
.badge-green{color:#065f46;background:#d1fae5}
.badge-blue{color:#1e40af;background:#dbeafe}
.badge-amber{color:#78350f;background:#fef3c7}
.badge-red{color:#991b1b;background:#fee2e2}
.badge-gray{background:#f1f5f9;color:var(--text2)}
.badge-purple{color:#4c1d95;background:#ede9fe}

/* ── Alerts ── */
.alert{border-radius:7px;margin-bottom:12px;padding:9px 12px;font-size:12.5px}
.alert-danger{color:#991b1b;background:#fff5f5;border:1px solid #fecaca;border-left:3px solid #ef4444}
.alert-success{color:#065f46;background:#f0fdf4;border:1px solid #bbf7d0;border-left:3px solid #10b981}
.alert-info{color:#1e40af;background:#eff6ff;border:1px solid #bfdbfe;border-left:3px solid #3b82f6}
.alert-warn{color:#78350f;background:#fffbeb;border:1px solid #fde68a;border-left:3px solid #f59e0b}

/* ── Tabs ── */
.tabs{border-bottom:2px solid var(--border);gap:0;margin-bottom:16px;display:flex;flex-wrap:wrap}
.tab{color:var(--text3);cursor:pointer;background:0 0;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;padding:7px 13px;font-size:12.5px;font-weight:500;transition:all .15s}
.tab:hover{color:var(--text2)}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}

/* ── Modal ── */
.modal-overlay{z-index:999;background:rgba(0,0,0,0.45);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}
.modal{background:var(--surface);box-shadow:var(--shadow-md);border-radius:12px;flex-direction:column;width:510px;max-width:95vw;max-height:92vh;display:flex}
.modal-lg{width:760px}
.modal-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:14px 18px;display:flex}
.modal-header h3{font-size:14px;font-weight:600;color:var(--text)}
.modal-body{flex:1;padding:18px;overflow-y:auto}
.modal-footer{border-top:1px solid var(--border);justify-content:flex-end;gap:8px;padding:12px 18px;display:flex;background:#fafbfc;border-radius:0 0 12px 12px}
.modal-close{cursor:pointer;color:var(--text3);background:0 0;border:none;border-radius:5px;padding:4px;display:flex;transition:all .15s}
.modal-close:hover{background:var(--bg);color:var(--text2)}

/* ── Auth ── */
.auth-page{background:linear-gradient(135deg,#0f172a 0%,#1e1b4b 100%);justify-content:center;align-items:center;min-height:100vh;display:flex}
.auth-card{background:var(--surface);box-shadow:var(--shadow-md);border-radius:14px;width:400px;max-width:94vw;padding:32px}
.auth-logo{text-align:center;margin-bottom:26px}
.auth-logo h1{color:var(--primary);font-size:21px;font-weight:700;letter-spacing:-0.3px}
.auth-logo p{color:var(--text2);margin-top:4px;font-size:12.5px}

/* ── Page Header ── */
.page-header{justify-content:space-between;align-items:flex-start;margin-bottom:16px;display:flex;gap:12px;flex-wrap:wrap}
.page-header h2{font-size:17px;font-weight:700;color:var(--text);letter-spacing:-0.3px}
.page-header p{color:var(--text2);margin-top:2px;font-size:12.5px}
.page-header>div:first-child{min-width:0}

/* ── Misc ── */
.empty-state{text-align:center;color:var(--text2);padding:40px 20px}
.empty-state h4{color:var(--text);margin-bottom:6px;font-size:14px;font-weight:600}
.spinner{border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:18px;height:18px;animation:.65s linear infinite spin}
.spinner-lg{border-width:3px;width:32px;height:32px}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-center{justify-content:center;align-items:center;min-height:180px;display:flex}
.text-muted{color:var(--text2)}.text-sm{font-size:12px}
.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:14px}
.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:14px}
.flex{display:flex}.items-center{align-items:center}
.gap-1{gap:4px}.gap-2{gap:6px}.gap-3{gap:10px}
.justify-between{justify-content:space-between}.flex-1{flex:1}.w-full{width:100%}
.grid-2{grid-template-columns:1fr 1fr;gap:14px;display:grid}
.grid-3{grid-template-columns:1fr 1fr 1fr;gap:14px;display:grid}