:root {
  --mono-100: #1a1a1a;
  --mono-400: #666666;
  --mono-800: #cccccc;
  --mono-900: #e6e6e6;
  --mono-950: #f5f5f5;
  --mono-1000: #ffffff;
  --grid: 8px;
  --border: 1px solid var(--mono-800);
}

html.dark-theme, body.dark-theme, [data-theme="dark"] {
  --mono-100: #f5f5f5;      /* Text */
  --mono-400: #aaaaaa;      /* Subtext */
  --mono-800: #333333;      /* Border */
  --mono-900: #222222;      /* Hover background */
  --mono-950: #161616;      /* Card background */
  --mono-1000: #0a0a0a;     /* Body background */
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--mono-100);
  background: var(--mono-1000);
  letter-spacing: -0.01em;
}

.container { 
  max-width: 1440px; 
  margin: 0 auto; 
  padding: calc(var(--grid)*4); 
}

/* ── Header ── */
.header { 
  border-bottom: var(--border); 
  padding-bottom: calc(var(--grid)*4); 
  margin-bottom: calc(var(--grid)*4); 
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: calc(var(--grid)*2);
}

.header-left {
  display: flex;
  align-items: center;
  gap: calc(var(--grid)*2);
}

.logo {
  height: 48px;
  width: auto;
  display: block;
}

h1 { 
  font-size: 30px; 
  font-weight: 500; 
  letter-spacing: -0.02em; 
  margin-bottom: 4px; 
}

.header-subtitle { 
  color: var(--mono-400); 
  font-size: 13px; 
}

.header-meta { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); 
  gap: calc(var(--grid)*2); 
  width: 100%;
  margin-top: calc(var(--grid)*2);
}

.meta-item { 
  display: flex; 
  justify-content: space-between; 
  padding: calc(var(--grid)*2); 
  border: var(--border); 
  font-size: 12px; 
}

.meta-label { 
  color: var(--mono-400); 
  text-transform: uppercase; 
  letter-spacing: 0.05em; 
  font-size: 10px; 
}

.meta-value { 
  font-weight: 500; 
  font-variant-numeric: tabular-nums; 
}

/* ── Nav ── */
.nav { 
  border-bottom: var(--border); 
  margin-bottom: calc(var(--grid)*4); 
}

.nav-list { 
  display: flex; 
  list-style: none; 
  overflow-x: auto; 
  gap: 0; 
}

.nav-item { 
  border-right: var(--border); 
}

.nav-item:last-child { 
  border-right: none; 
}

.nav-btn {
  display: block; 
  padding: calc(var(--grid)*2) calc(var(--grid)*3);
  background: none; 
  border: none; 
  cursor: pointer;
  font-size: 11px; 
  font-weight: 500; 
  color: var(--mono-400);
  text-transform: uppercase; 
  letter-spacing: 0.08em; 
  transition: all 0.15s;
  white-space: nowrap;
}

.nav-btn i {
  margin-right: 6px;
  font-size: 12px;
}

.nav-btn:hover { 
  background: var(--mono-950); 
  color: var(--mono-100); 
}

.nav-btn.active { 
  background: var(--mono-100); 
  color: var(--mono-1000); 
}

/* ── Pages ── */
.page { 
  display: none; 
  animation: fadeIn 0.2s ease; 
}

.page.active { 
  display: block; 
}

@keyframes fadeIn { 
  from { opacity: 0; transform: translateY(8px); } 
  to { opacity: 1; transform: translateY(0); } 
}

/* ── Stats ── */
.stats-grid { 
  display: grid; 
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); 
  gap: calc(var(--grid)*2); 
  margin-bottom: calc(var(--grid)*4); 
}

.stat-card { 
  border: var(--border); 
  padding: calc(var(--grid)*3); 
  box-sizing: border-box;
  min-width: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  height: 100%;
  min-height: 90px;
}

.stat-label { 
  font-size: 10px; 
  text-transform: uppercase; 
  letter-spacing: 0.08em; 
  color: var(--mono-400); 
  margin-bottom: 4px; 
}

.stat-value { 
  font-size: 22px; 
  font-weight: 500; 
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-word;
  max-width: 100%;
  white-space: nowrap;
}

.stat-unit { 
  font-size: 12px; 
  color: var(--mono-400); 
  margin-left: 3px; 
}

/* ── Tables ── */
table { 
  width: 100%; 
  border-collapse: collapse; 
  font-size: 13px; 
}

thead { 
  border-bottom: var(--border); 
}

th { 
  text-align: left; 
  padding: calc(var(--grid)*2); 
  font-weight: 500; 
  font-size: 10px; 
  text-transform: uppercase; 
  letter-spacing: 0.08em; 
  color: var(--mono-400); 
}

td { 
  padding: calc(var(--grid)*2); 
  border-bottom: 1px solid var(--mono-900); 
  font-variant-numeric: tabular-nums; 
}

tr:hover td { 
  background: var(--mono-950); 
  cursor: pointer; 
}

.mono { 
  font-family: 'SF Mono', 'Consolas', monospace; 
  font-size: 12px; 
}

/* ── Search Bars ── */
.search-bar { 
  display: flex; 
  gap: calc(var(--grid)*1); 
  margin-bottom: calc(var(--grid)*3); 
  flex-wrap: wrap; 
  align-items: center;
}

.search-wrapper {
  position: relative;
  flex: 1;
  min-width: 200px;
  display: flex;
  align-items: center;
}

.search-wrapper .search-icon {
  position: absolute;
  left: 12px;
  color: var(--mono-400);
  font-size: 14px;
  pointer-events: none;
}

.search-wrapper input { 
  flex: 1; 
  padding: calc(var(--grid)*1.5) calc(var(--grid)*2) calc(var(--grid)*1.5) 36px; 
  border: var(--border); 
  border-radius: 4px;
  font-size: 13px; 
  font-family: 'SF Mono', 'Consolas', monospace; 
  color: var(--mono-100); 
  outline: none; 
  background: var(--mono-1000);
  width: 100%;
  transition: border-color 0.2s;
}

.search-wrapper input:focus { 
  border-color: var(--mono-100); 
}

.search-wrapper input::placeholder { 
  color: var(--mono-800); 
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  font-size: 12px;
}

.search-bar button {
  padding: calc(var(--grid)*1.5) calc(var(--grid)*2.5);
  border: var(--border);
  background: var(--mono-1000);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  color: var(--mono-100);
  white-space: nowrap;
  transition: all 0.15s;
}

.search-bar button:hover {
  background: var(--mono-100);
  color: var(--mono-1000);
}

.search-bar button.secondary {
  color: var(--mono-400);
}

.search-bar button.secondary:hover {
  background: var(--mono-950);
  color: var(--mono-100);
}

/* ── Section ── */
.section { 
  margin-bottom: calc(var(--grid)*5); 
}

.section-header { 
  border-bottom: var(--border); 
  padding-bottom: calc(var(--grid)*2); 
  margin-bottom: calc(var(--grid)*3); 
  display: flex; 
  justify-content: space-between; 
  align-items: baseline; 
  flex-wrap: wrap; 
  gap: calc(var(--grid)*2); 
}

.section-header h2 { 
  font-size: 16px; 
  font-weight: 500; 
}

/* ── Block Feed ── */
.block-feed { 
  border: var(--border); 
  max-height: 500px; 
  overflow-y: auto; 
}

.block-item { 
  padding: calc(var(--grid)*2); 
  border-bottom: 1px solid var(--mono-900); 
  display: grid; 
  grid-template-columns: 80px 1fr 140px; 
  gap: calc(var(--grid)*2); 
  align-items: center; 
  font-size: 13px; 
}

.block-item:last-child { 
  border-bottom: none; 
}

.block-item:hover { 
  background: var(--mono-950); 
}

.block-index { 
  font-weight: 500; 
  font-variant-numeric: tabular-nums; 
}

.block-hash { 
  font-family: 'SF Mono', monospace; 
  font-size: 11px; 
  color: var(--mono-400); 
  overflow: hidden; 
  text-overflow: ellipsis; 
  white-space: nowrap; 
}

.block-time { 
  text-align: right; 
  font-size: 11px; 
  color: var(--mono-400); 
}

/* ── Validator Summary ── */
.val-summary { 
  display: flex; 
  gap: calc(var(--grid)*4); 
  padding: calc(var(--grid)*2) 0 calc(var(--grid)*3); 
  font-size: 12px; 
  flex-wrap: wrap; 
}

.val-summary-item { 
  display: flex; 
  flex-direction: column; 
  gap: 2px; 
}

.val-summary-label { 
  color: var(--mono-400); 
  text-transform: uppercase; 
  letter-spacing: 0.06em; 
  font-size: 10px; 
}

.val-summary-val { 
  font-weight: 500; 
  font-variant-numeric: tabular-nums; 
}

/* ── Pagination ── */
#pagination-controls {
  display: flex; 
  align-items: center; 
  gap: calc(var(--grid)*1);
  padding: calc(var(--grid)*2); 
  border-top: var(--border);
  flex-wrap: wrap;
}

#pagination-controls button {
  padding: 5px 14px; 
  border: var(--border); 
  background: var(--mono-1000);
  cursor: pointer; 
  font-size: 11px; 
  color: var(--mono-100); 
  letter-spacing: 0.04em;
  transition: all 0.15s;
}

#pagination-controls button:hover:not(:disabled) { 
  background: var(--mono-100); 
  color: var(--mono-1000); 
}

#pagination-controls button:disabled { 
  color: var(--mono-800); 
  cursor: not-allowed; 
  background: var(--mono-950); 
}

#pagination-controls span { 
  font-size: 12px; 
  color: var(--mono-400); 
}

#explorer-jump { 
  width: 60px; 
  padding: 5px 8px; 
  border: var(--border); 
  font-size: 12px; 
  text-align: center; 
}

/* ── Peer Rows ── */
.peer-row { 
  padding: calc(var(--grid)*2); 
  border: var(--border); 
  margin-bottom: calc(var(--grid)*1); 
  font-size: 12px; 
  font-family: 'SF Mono', monospace; 
}

/* ── Footer ── */
footer {
  border-top: var(--border); 
  padding: calc(var(--grid)*3) 0; 
  margin-top: calc(var(--grid)*6);
  display: flex; 
  justify-content: space-between; 
  align-items: center;
  flex-wrap: wrap; 
  gap: calc(var(--grid)*2); 
  font-size: 11px; 
  color: var(--mono-400);
}

footer a { 
  color: var(--mono-400); 
  text-decoration: none; 
  border-bottom: 1px solid var(--mono-800); 
  padding-bottom: 1px; 
  transition: all 0.15s;
}

footer a:hover { 
  color: var(--mono-100); 
  border-bottom-color: var(--mono-100); 
}

footer a i {
  margin-right: 4px;
}

.footer-links { 
  display: flex; 
  gap: calc(var(--grid)*3); 
}

/* ── Modal ── */
.modal-overlay {
  position: fixed; 
  inset: 0; 
  background: rgba(0,0,0,0.4);
  display: flex; 
  align-items: center; 
  justify-content: center;
  z-index: 1000; 
  padding: calc(var(--grid)*4);
}

.modal-box {
  background: var(--mono-1000); 
  border: var(--border);
  max-width: 820px; 
  width: 100%; 
  max-height: 82vh;
  display: flex; 
  flex-direction: column;
}

.modal-header {
  border-bottom: var(--border); 
  padding: calc(var(--grid)*2) calc(var(--grid)*3);
  display: flex; 
  justify-content: space-between; 
  align-items: center; 
  flex-shrink: 0;
}

.modal-header h3 { 
  font-size: 14px; 
  font-weight: 500; 
}

.modal-header h3 i {
  margin-right: 8px;
}

.modal-close {
  background: none; 
  border: var(--border); 
  padding: 4px 12px;
  cursor: pointer; 
  font-size: 11px; 
  letter-spacing: 0.06em;
  transition: all 0.15s;
}

.modal-close:hover { 
  background: var(--mono-950); 
}

.modal-body { 
  padding: calc(var(--grid)*3); 
  overflow-y: auto; 
  flex: 1; 
}

.detail-row { 
  border-bottom: 1px solid var(--mono-900); 
}

.detail-row td { 
  padding: calc(var(--grid)*1.5); 
}

.detail-label { 
  color: var(--mono-400); 
  white-space: nowrap; 
  width: 120px; 
  font-size: 12px; 
}

.detail-label i {
  margin-right: 6px;
  width: 16px;
}

.tx-item { 
  border: var(--border); 
  padding: calc(var(--grid)*2); 
  margin-bottom: 4px; 
  font-size: 11px; 
}

/* ── No Results ── */
.no-results {
  padding: calc(var(--grid)*3);
  color: var(--mono-400);
  font-size: 12px;
  text-align: center;
  border: var(--border);
  background: var(--mono-950);
  margin-top: calc(var(--grid)*2);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .stats-grid { 
    grid-template-columns: 1fr 1fr; 
  }
  .block-item { 
    grid-template-columns: 60px 1fr; 
  }
  .block-time { 
    display: none; 
  }
  .val-summary { 
    gap: calc(var(--grid)*2); 
  }
  .header-meta { 
    grid-template-columns: 1fr 1fr; 
  }
  .header { 
    flex-direction: column; 
    align-items: flex-start; 
  }
  .logo { 
    height: 36px; 
  }
  .stat-value {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .stats-grid { 
    grid-template-columns: 1fr; 
  }
  .header-meta { 
    grid-template-columns: 1fr; 
  }
  .search-wrapper { 
    min-width: 160px; 
  }
  .stat-value {
    font-size: 16px;
  }
}

/* ── Copy Data Button ── */
.copy-data-btn {
  background: transparent;
  border: none;
  color: var(--mono-500, #888888);
  cursor: pointer;
  padding: 2px 4px;
  font-size: 0.75rem;
  margin-left: 4px;
  border-radius: 4px;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.copy-data-btn:hover {
  color: var(--mono-1000, #ffffff);
  background: var(--mono-800, #2d2d2d);
}

/* ── Tx Toggle Switch ── */
.tx-toggle-wrap {
  position: relative;
  width: 36px;
  height: 20px;
  border-radius: 10px;
  background: var(--mono-800);
  cursor: pointer;
  transition: background 0.25s;
  flex-shrink: 0;
  border: var(--border);
}
.tx-toggle-wrap.active {
  background: #2a7a2a;
  border-color: #2a7a2a;
}
.tx-toggle-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--mono-400);
  transition: transform 0.25s, background 0.25s;
}
.tx-toggle-knob.active {
  transform: translateX(16px);
  background: #ffffff;
}

/* ── NFT grid & cards ── */
.nft-grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: calc(var(--grid)*3);
  padding: calc(var(--grid)*2) 0;
}

.nft-card {
  border: var(--border);
  background: var(--mono-1000);
  padding: calc(var(--grid)*2);
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}

.nft-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  border-color: var(--mono-400);
}

.nft-cover {
  width: 100%;
  aspect-ratio: 1;
  background: var(--mono-950);
  border: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--mono-400);
  margin-bottom: calc(var(--grid)*2);
  border-radius: 4px;
  overflow: hidden;
}

.nft-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nft-title {
  font-weight: 600;
  font-size: 13px;
  color: var(--mono-100);
  margin-bottom: 4px;
}

.nft-meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--mono-400);
  margin-top: 4px;
}

.badge {
  display: inline-block;
  padding: 2px 6px;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  border-radius: 3px;
  border: var(--border);
}

.badge-blue {
  background: rgba(30, 144, 255, 0.1);
  color: #1e90ff;
  border-color: rgba(30, 144, 255, 0.2);
}

.badge-gold {
  background: rgba(218, 165, 32, 0.1);
  color: #daa520;
  border-color: rgba(218, 165, 32, 0.2);
}