/* VanGrid Explorer — Brandkit dark theme */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --bg: #000000;
  --surface: #0a0a0a;
  --surface-2: #111111;
  --charcoal: #333333;
  --steel: #B5C7DB;
  --lime: #E8E9A4;
  --white: #FFFFFF;
  --text: #FFFFFF;
  --text-secondary: #8a8f98;
  --text-muted: #5c616a;
  --border: #2a2a2a;
  --border-strong: #3a3a3a;
  --primary: #E8E9A4;
  --primary-ink: #0a0a0a;
  --link: #B5C7DB;
  --success: #E8E9A4;
  --warning: #E8E9A4;
  --danger: #ff6b6b;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --sans: 'Space Grotesk', system-ui, sans-serif;
  --radius: 0;
  --max-w: 1320px;
  --hairline: 1px solid var(--border);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  background:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px),
    var(--bg);
  background-size: 48px 48px, 48px 48px, auto;
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--lime); text-decoration: underline; text-underline-offset: 3px; }

/* ── Top bar ── */
.top-bar {
  background: rgba(0,0,0,0.92);
  border-bottom: var(--hairline);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.top-bar-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 60px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff !important;
  text-decoration: none !important;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}
.brand:hover { opacity: .9; text-decoration: none !important; color: var(--lime) !important; }

.brand-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  background: transparent;
  border-radius: 0;
  padding: 0;
}
.brand-icon img,
.brand-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.main-nav {
  display: flex;
  gap: 2px;
  flex: 1;
}

.main-nav a {
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: 0;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  transition: color .15s, border-color .15s, background .15s;
}
.main-nav a:hover {
  background: transparent;
  color: var(--white);
  border-color: var(--border-strong);
  text-decoration: none;
}
.main-nav a.active {
  background: transparent;
  color: var(--lime);
  border-color: var(--lime);
}

.search-wrap {
  display: flex;
  min-width: 280px;
  max-width: 420px;
  flex: 1;
  border: 1px solid var(--border-strong);
}
.search-wrap input {
  flex: 1;
  border: none;
  border-radius: 0;
  padding: 10px 14px;
  font-size: 12px;
  font-family: var(--mono);
  outline: none;
  background: var(--surface);
  color: var(--white);
}
.search-wrap input::placeholder { color: var(--text-muted); }
.search-wrap button {
  background: var(--lime);
  color: var(--primary-ink);
  border: none;
  border-left: 1px solid var(--border-strong);
  padding: 0 16px;
  border-radius: 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--sans);
}
.search-wrap button:hover { filter: brightness(1.05); }

/* ── Page shell ── */
.page {
  flex: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 28px 20px;
  width: 100%;
}

.breadcrumb {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.breadcrumb a { color: var(--steel); }

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.page-title span {
  font-weight: 400;
  color: var(--text-secondary);
  font-size: 13px;
  margin-left: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ── Stat cards ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 1px;
  margin-bottom: 24px;
  background: var(--border);
  border: var(--hairline);
}

.stat-card {
  background: var(--surface);
  border: none;
  border-radius: 0;
  padding: 18px 18px 16px;
  box-shadow: none;
  border-left: none;
  position: relative;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  width: 6px;
  height: 6px;
  border-top: 1px solid var(--text-muted);
  border-left: 1px solid var(--text-muted);
}
.stat-card.green { box-shadow: inset 3px 0 0 var(--lime); }
.stat-card.amber { box-shadow: inset 3px 0 0 var(--steel); }
.stat-card.red { box-shadow: inset 3px 0 0 var(--danger); }

.stat-card .stat-label {
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.stat-card .stat-help {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border: 1px solid var(--text-muted);
  border-radius: 50%;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--text-muted);
  cursor: help;
  flex-shrink: 0;
  text-transform: none;
}
.stat-card .stat-help:hover,
.stat-card .stat-help:focus {
  color: var(--lime);
  border-color: var(--lime);
  outline: none;
}
.stat-card .stat-help::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  width: min(280px, 70vw);
  padding: 10px 12px;
  background: #111;
  border: 1px solid var(--border-strong, #333);
  color: var(--text-secondary, #c8c8c8);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.45;
  text-transform: none;
  text-align: left;
  white-space: normal;
  opacity: 0;
  pointer-events: none;
  transition: opacity .12s ease;
  z-index: 20;
  box-shadow: 0 8px 24px rgba(0,0,0,.45);
}
.stat-card .stat-help:hover::after,
.stat-card .stat-help:focus::after {
  opacity: 1;
}
.stat-card .stat-value {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

/* ── Panels ── */
.card-panel {
  background: var(--surface);
  border: var(--hairline);
  border-radius: 0;
  box-shadow: none;
  margin-bottom: 20px;
  overflow: hidden;
  position: relative;
}
.card-panel::before,
.card-panel::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  pointer-events: none;
  z-index: 1;
}
.card-panel::before {
  top: 0; left: 0;
  border-top: 1px solid var(--steel);
  border-left: 1px solid var(--steel);
}
.card-panel::after {
  top: 0; right: 0;
  border-top: 1px solid var(--steel);
  border-right: 1px solid var(--steel);
}

.card-panel-header {
  padding: 14px 18px;
  border-bottom: var(--hairline);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--surface-2);
}
.card-panel-header h2 {
  font-size: 12px;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.card-panel-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.table-xlsx-bar {
  display: flex;
  justify-content: flex-end;
  padding: 8px 12px 0;
}
.btn-xlsx {
  white-space: nowrap;
  font-size: 10px;
  padding: 7px 12px;
}
.hist-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.hist-title-row .btn-xlsx {
  flex-shrink: 0;
  font-size: 9px;
  padding: 4px 8px;
  letter-spacing: 0.06em;
}
.card-panel-body { padding: 18px; }

.chart-wrap {
  position: relative;
  height: 220px;
  width: 100%;
}
.chart-wrap-wide {
  height: 280px;
}
.chart-wrap canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
  .search-wrap { display: none; }
  .main-nav { overflow-x: auto; }
}

/* ── Tables ── */
.table-wrap { overflow-x: auto; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data-table thead th {
  background: var(--surface-2);
  border-bottom: 1px solid var(--border-strong);
  padding: 12px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .1em;
  white-space: nowrap;
}
table.data-table tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  color: var(--text);
}
table.data-table tbody tr:hover { background: rgba(181, 199, 219, 0.06); }
table.data-table tbody tr:last-child td { border-bottom: none; }

.expand-caret {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-right: 6px;
  padding: 0;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--steel);
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
  vertical-align: middle;
  transition: transform .15s, color .15s, border-color .15s;
}
.expand-caret.open {
  transform: rotate(90deg);
  color: var(--lime);
  border-color: var(--lime);
}
.tree-row { cursor: pointer; }
.tree-row.expanded { background: rgba(232, 233, 164, 0.05); }
.tree-detail { display: none; }
.tree-detail.open { display: table-row; }
.tree-detail > td {
  padding: 0 !important;
  background: var(--bg);
  border-bottom: 1px solid var(--border-strong);
}
.tree-detail-inner { padding: 8px 12px 14px 36px; }
.leaves-nested {
  border: 1px solid var(--border);
  background: var(--surface);
}
.leaves-nested .data-table thead th {
  background: var(--bg);
}

.mono, pre, code {
  font-family: var(--mono);
  font-size: 12px;
}

.hash-link {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--steel);
}
.hash-link:hover { color: var(--lime); }

.addr-cell {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--steel);
  opacity: 0.75;
  vertical-align: middle;
}
.copy-btn:hover { opacity: 1; color: var(--lime); }
.copy-btn.copied { color: var(--lime); opacity: 1; }

.vg-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(12px);
  z-index: 9999;
  padding: 10px 16px;
  border: 1px solid var(--lime);
  background: rgba(14, 16, 20, 0.94);
  color: var(--lime);
  font-size: 13px;
  letter-spacing: 0.02em;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
}
.vg-toast.vg-toast-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.copy-icon {
  position: relative;
  display: inline-block;
  width: 10px;
  height: 10px;
}
.copy-icon::before,
.copy-icon::after {
  content: '';
  position: absolute;
  width: 7px;
  height: 7px;
  border: 1.5px solid currentColor;
  border-radius: 1px;
  box-sizing: border-box;
  background: transparent;
}
.copy-icon::before {
  top: 0;
  left: 0;
}
.copy-icon::after {
  top: 2.5px;
  left: 2.5px;
  background: var(--bg, #0e1014);
}

.ext-link {
  font-size: 11px;
  color: var(--steel);
  white-space: nowrap;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.ext-link:hover { color: var(--lime); }

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 0;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid var(--border-strong);
}
.badge-login { background: transparent; color: var(--steel); border-color: var(--steel); }
.badge-capture { background: transparent; color: var(--lime); border-color: var(--lime); }
.badge-attested { background: var(--lime); color: var(--primary-ink); border-color: var(--lime); }
.badge-built { background: transparent; color: var(--text-secondary); border-color: var(--border-strong); }

/* ── Forms ── */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.toolbar label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
select, input[type="text"] {
  border: 1px solid var(--border-strong);
  border-radius: 0;
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  outline: none;
}
select:focus, input:focus {
  border-color: var(--lime);
  box-shadow: none;
}
.btn {
  background: var(--lime);
  color: var(--primary-ink);
  border: 1px solid var(--lime);
  border-radius: 0;
  padding: 9px 16px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--sans);
}
.btn:hover { filter: brightness(1.06); }
.btn-outline {
  background: transparent;
  color: var(--steel);
  border: 1px solid var(--border-strong);
}
.btn-outline:hover {
  background: transparent;
  color: var(--lime);
  border-color: var(--lime);
}

.events-log {
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  background: var(--bg);
  border: var(--hairline);
  border-radius: 0;
  padding: 16px;
  max-height: 70vh;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  color: var(--steel);
}

.detail-box {
  background: var(--bg);
  border: var(--hairline);
  border-radius: 0;
  padding: 14px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  color: var(--steel);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
.meta-item label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 600;
  letter-spacing: 0.12em;
}
.meta-item .val {
  font-size: 13px;
  word-break: break-all;
  color: var(--white);
}

.muted { color: var(--text-secondary); }
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
}

footer.site-footer {
  border-top: var(--hairline);
  padding: 18px 20px;
  text-align: center;
  font-size: 11px;
  color: var(--text-muted);
  background: transparent;
  margin-top: auto;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.card-panel-header .meta { font-size: 11px; color: var(--text-muted); letter-spacing: 0.04em; text-transform: none; font-weight: 400; }