:root{--brand:#16457a;--brand-dark:#0f2f54;--bg:#f4f6fa;--panel:#fff;--border:#d9e1ec;--text:#1a2230;--muted:#64748b;--danger:#c0362c;--success:#157347;--warning:#b8860b}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.app-shell{display:flex;min-height:100vh}.sidebar{width:232px;background:var(--brand-dark);color:#dbe6f3;display:flex;flex-direction:column;flex-shrink:0}.sidebar .brand{padding:16px 14px;border-bottom:1px solid hsla(0,0%,100%,.12)}.sidebar .brand-logo{background:#fff;border-radius:6px;padding:8px 10px;display:flex;justify-content:center}.sidebar .brand-logo img{width:100%;max-width:170px;height:auto;display:block}.sidebar .brand-title{color:#fff;font-size:13px;font-weight:700;text-align:center;margin-top:8px;letter-spacing:.5px}.sidebar nav{padding:8px 0;overflow-y:auto;flex:1 1}.sidebar nav a{display:block;padding:9px 18px;color:#cbd8e8;font-size:13.5px}.sidebar nav a:hover{background:hsla(0,0%,100%,.08);text-decoration:none}.sidebar nav a.active{background:var(--brand);color:#fff;border-left:3px solid #7fb2ea}.sidebar .nav-group{padding:12px 18px 4px;font-size:11px;text-transform:uppercase;letter-spacing:1px;color:#7f9bbd}.main{flex:1 1;display:flex;flex-direction:column;min-width:0}.topbar{height:54px;background:var(--panel);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px}.topbar .user{font-size:13px;color:var(--muted)}.content{padding:22px;flex:1 1}.card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:18px;margin-bottom:18px}.card h2{margin:0 0 12px;font-size:15px}.page-title{font-size:20px;font-weight:700;margin:0 0 16px}.btn,button{background:var(--brand);color:#fff;border:none;padding:8px 14px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:600}.btn:hover,button:hover{background:var(--brand-dark)}button:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:#e7edf5;color:var(--brand-dark)}.btn-secondary:hover{background:#d5e0ee}.btn-danger{background:var(--danger)}.btn-sm{padding:5px 9px;font-size:12px}input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;background:#fff;color:var(--text)}label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;font-weight:600}.field{margin-bottom:12px}.grid{display:grid;grid-gap:12px;gap:12px}.grid-2{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:1fr 1fr 1fr}.grid-4{grid-template-columns:repeat(4,1fr)}table.data{width:100%;border-collapse:collapse}table.data td,table.data th{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border);font-size:13px}table.data th{background:#eef3f9;color:var(--brand-dark);font-weight:600}table.data tr:hover td{background:#f8fafc}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700}.badge-gray{background:#e2e8f0;color:#475569}.badge-blue{background:#dbeafe;color:#1e40af}.badge-green{background:#dcfce7;color:#166534}.badge-amber{background:#fef3c7;color:#92400e}.badge-red{background:#fee2e2;color:#991b1b}.alert{padding:10px 14px;border-radius:6px;margin-bottom:14px;font-size:13px}.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}.alert-success{background:#dcfce7;color:#166534;border:1px solid #86efac}.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #93c5fd}.stepper{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}.stepper .step{padding:6px 12px;border-radius:6px;background:#e7edf5;font-size:12px;cursor:pointer;color:var(--brand-dark);border:1px solid transparent}.stepper .step.active{background:var(--brand);color:#fff}.stepper .step.done{border-color:var(--success)}.muted{color:var(--muted)}.row-actions{display:flex;gap:6px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:14px;gap:14px}.stat{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:16px}.stat .value{font-size:26px;font-weight:700;color:var(--brand)}.stat .label{font-size:12px;color:var(--muted);margin-top:2px}.center-screen{display:flex;align-items:center;justify-content:center;min-height:100vh}.verify-hash{margin-top:12px;padding:8px 10px;background:#f4f7fb;border:1px solid var(--border);border-radius:6px;font-size:12px}.notif-dropdown{position:absolute;right:0;top:34px;width:340px;max-height:420px;overflow-y:auto;background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:0 12px 32px rgba(0,0,0,.18);z-index:1200}.notif-head{display:flex;justify-content:space-between;align-items:center;padding:10px 12px}.notif-head,.notif-item{border-bottom:1px solid var(--border)}.notif-item{padding:9px 12px;cursor:pointer}.notif-item:hover{background:#f8fafc}.notif-item.unread{background:#eef5ff}.login-card{width:360px}.spinner{color:var(--muted);padding:40px;text-align:center}.inline-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.modal-overlay{position:fixed;inset:0;background:rgba(15,30,52,.45);display:flex;align-items:flex-start;justify-content:center;padding-top:8vh;z-index:1000}.modal{background:var(--panel);border-radius:10px;width:460px;max-width:92vw;box-shadow:0 18px 48px rgba(0,0,0,.28);overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border)}.modal-body{padding:18px}.label-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.link-btn{background:none;color:var(--brand);padding:0;font-size:12px;font-weight:700;border:none;cursor:pointer}.link-btn:hover{background:none;text-decoration:underline}.link-btn:disabled{color:var(--muted);cursor:not-allowed}