:root{
  --b:#111827; --muted:#6b7280; --bg:#f5f7fb; --card:#ffffff; --line:#e5e7eb;
  --brand:#0f172a; --accent:#2563eb; --accent-2:#1d4ed8;
  --green:#065f46; --green-bg:#dcfce7; --blue:#1e40af; --blue-bg:#dbeafe;
  --amber:#92400e; --amber-bg:#fef3c7;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--b);}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2{margin:0}
code{background:#f3f4f6;padding:2px 6px;border-radius:6px;font-size:12px}

/* ---- top bar ---- */
.topbar{background:var(--brand);color:#fff;box-shadow:0 1px 8px rgba(0,0,0,.12)}
.topbar-inner{max-width:1160px;margin:0 auto;padding:0 20px;height:60px;display:flex;align-items:center;gap:22px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-logo{height:30px;width:auto;background:#fff;border-radius:6px;padding:3px}
.brand-text{font-weight:800;line-height:1.05;display:flex;flex-direction:column}
.brand-text small{font-weight:500;font-size:11px;opacity:.7;text-transform:uppercase;letter-spacing:.06em}
.mainnav{display:flex;gap:6px;margin-left:12px}
.mainnav a{color:#cbd5e1;padding:8px 12px;border-radius:8px;font-weight:600;font-size:14px}
.mainnav a:hover{color:#fff;background:rgba(255,255,255,.08);text-decoration:none}
.mainnav a.active{color:#fff;background:rgba(255,255,255,.16)}
.nav-cta{margin-left:6px;background:var(--accent);color:#fff !important;padding:8px 14px;border-radius:8px;font-weight:700;font-size:14px}
.nav-cta:hover{background:var(--accent-2);text-decoration:none}
.logout{margin-left:auto;color:#cbd5e1;font-size:13px;font-weight:600}
.logout:hover{color:#fff;text-decoration:none}

/* ---- page ---- */
.page{max-width:1160px;margin:0 auto;padding:22px 20px 40px}
.page-inner{width:100%}
.page-title{font-size:22px;margin:2px 0 18px}
.flash{background:#dcfce7;border:1px solid #bbf7d0;color:#14532d;padding:11px 14px;border-radius:10px;font-size:13px;font-weight:600;margin:0 0 16px}
.foot{color:var(--muted);font-size:12px;padding:18px 20px;text-align:center}
.foot .page-inner{max-width:1160px;margin:0 auto}

/* ---- cards ---- */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:0 1px 10px rgba(0,0,0,.04)}
.card.no-pad{padding:0;overflow:hidden}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:10px}
.card-head h2{font-size:14px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}.grid-2{grid-template-columns:1fr}}
@media(max-width:520px){.cards{grid-template-columns:1fr}}

.stat .stat-label{font-size:12px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.stat .stat-value{font-size:28px;font-weight:800;margin:6px 0 2px;letter-spacing:-.02em}
.stat .stat-foot{font-size:12px;color:var(--muted)}

/* ---- tables ---- */
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:11px 14px;text-align:left;font-size:13px;border-bottom:1px solid var(--line);vertical-align:top}
.table thead th{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:700;background:#fafbfc}
.table tbody tr:last-child td{border-bottom:none}
.table.compact th,.table.compact td{padding:9px 10px}
.table .r{text-align:right}
.table .strong,.strong{font-weight:700}
.table .muted,.muted{color:var(--muted)}
.muted.pad,.pad{padding:18px}
.sm{font-size:11px}
.nowrap{white-space:nowrap}
.row-link{cursor:pointer}
.row-link:hover{background:#f8fafc}
tfoot td{font-size:13px;padding:9px 14px;border-bottom:none}
tfoot .grand td{font-weight:800;font-size:14px;border-top:2px solid var(--line)}

/* ---- badges ---- */
.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.03em;background:#f1f5f9;color:#475569}
.badge-green{background:var(--green-bg);color:var(--green)}
.badge-blue{background:var(--blue-bg);color:var(--blue)}
.badge-amber{background:var(--amber-bg);color:var(--amber)}

/* ---- buttons ---- */
.btn{display:inline-block;background:var(--accent);color:#fff;padding:9px 14px;border-radius:10px;font-weight:600;font-size:13px;border:1px solid var(--accent)}
.btn:hover{background:var(--accent-2);text-decoration:none}
.btn.secondary{background:#fff;color:var(--b);border-color:var(--line)}
.btn.secondary:hover{background:#f8fafc}
.btn.btn-danger{background:#fff;color:#b91c1c;border-color:#fecaca}
.btn.btn-danger:hover{background:#b91c1c;color:#fff;border-color:#b91c1c}
.btn-sm{display:inline-block;padding:5px 10px;border:1px solid var(--line);border-radius:8px;font-size:12px;font-weight:600;color:var(--b);background:#fff}
.btn-sm:hover{background:#f1f5f9;text-decoration:none}
.link{font-weight:600;font-size:13px}

/* ---- filters / pager ---- */
.filters{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.filters input[type=text]{flex:1;min-width:200px}
.filters input,.filters select{padding:9px 11px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:13px}
.filters button{padding:9px 16px;border:1px solid var(--accent);background:var(--accent);color:#fff;border-radius:10px;font-weight:600;cursor:pointer}
.filters .count{color:var(--muted);font-size:12px;margin-left:auto}
.pager{display:flex;gap:16px;align-items:center;justify-content:center;margin-top:16px;font-size:13px;color:var(--muted)}
.pager a{font-weight:600}

/* ---- chart ---- */
.chart{display:flex;align-items:flex-end;gap:8px;height:200px;padding-top:10px}
.chart-col{flex:1;display:flex;flex-direction:column;align-items:center;height:100%}
.chart-bar-wrap{flex:1;width:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:4px}
.chart-count{font-size:11px;color:var(--muted);font-weight:700}
.chart-bar{width:70%;max-width:34px;background:linear-gradient(180deg,#3b82f6,#2563eb);border-radius:6px 6px 0 0;min-height:2px;transition:height .2s}
.chart-col:hover .chart-bar{background:linear-gradient(180deg,#2563eb,#1d4ed8)}
.chart-x{font-size:11px;color:var(--muted);margin-top:6px}

/* ---- detail ---- */
.detail-actions{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.detail-actions .spacer{flex:1}
.kv{display:grid;grid-template-columns:120px 1fr;gap:10px;padding:8px 0;border-bottom:1px solid #f1f5f9;font-size:13px}
.kv:last-child{border-bottom:none}
.kv>span:first-child{color:var(--muted);font-weight:600}
.pre{white-space:pre-wrap}
.terms{font-size:12px;color:#374151;max-height:320px;overflow:auto;background:#fafbfc;border:1px solid var(--line);border-radius:10px;padding:12px}
.sig-img{max-width:280px;max-height:120px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:6px;margin-bottom:10px;display:block}
.hash{font-size:11px;word-break:break-all}

/* ---- login ---- */
.login-body{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(160deg,#0f172a,#1e293b)}
.login-card{background:#fff;border-radius:16px;padding:34px 30px;width:360px;max-width:92vw;box-shadow:0 20px 60px rgba(0,0,0,.35);text-align:center}
.login-logo{height:54px;width:auto;margin-bottom:10px}
.login-card h1{font-size:20px;margin:0 0 2px}
.login-sub{color:var(--muted);font-size:13px;margin:0 0 20px}
.login-card form{text-align:left}
.login-card label{display:block;font-size:12px;color:var(--muted);font-weight:600;margin:12px 0 6px}
.login-card input{width:100%;padding:11px;border:1px solid var(--line);border-radius:10px;font-size:14px}
.login-card button{width:100%;margin-top:20px;padding:12px;background:var(--accent);color:#fff;border:none;border-radius:10px;font-weight:700;font-size:14px;cursor:pointer}
.login-card button:hover{background:var(--accent-2)}
.login-error{background:#fee2e2;border:1px solid #fecaca;color:#991b1b;padding:10px 12px;border-radius:10px;font-size:13px;margin-bottom:8px}