@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg:        #070b12;
  --surface:   #0d1117;
  --surface2:  #161b22;
  --border:    #21262d;
  --border2:   #30363d;
  --primary:   #7c3aed;
  --primary-l: #a78bfa;
  --primary-d: #5b21b6;
  --blue:      #58a6ff;
  --green:     #3fb950;
  --yellow:    #d29922;
  --red:       #f85149;
  --text:      #e6edf3;
  --text2:     #8b949e;
  --text3:     #484f58;
  --hash:      #79c0ff;
  --addr:      #56d364;
  --radius:    10px;
  --radius-sm: 6px;
  --shadow:    0 1px 3px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.3);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--primary-l); text-decoration: none; }
a:hover { color: var(--text); text-decoration: underline; }

code, .mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 12.5px;
}

/* ── Layout ─────────────────────────────────────────────────────────────── */

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ── Navbar ─────────────────────────────────────────────────────────────── */

.navbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 16px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
}

.navbar-brand:hover { color: var(--primary-l); text-decoration: none; }

.brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-l));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.chain-badge {
  font-size: 11px;
  font-weight: 500;
  background: rgba(124, 58, 237, 0.15);
  color: var(--primary-l);
  border: 1px solid rgba(124, 58, 237, 0.3);
  padding: 2px 8px;
  border-radius: 20px;
}

.navbar-search {
  flex: 1;
  max-width: 480px;
}

.search-form { display: flex; gap: 8px; }

.search-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border2);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  transition: border-color .15s;
}

.search-input:focus { border-color: var(--primary); }
.search-input::placeholder { color: var(--text3); }

.btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background .15s, transform .1s;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-d); }

.btn-ghost {
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--border2);
}
.btn-ghost:hover { background: var(--surface2); color: var(--text); }

/* ── Hero Stats ──────────────────────────────────────────────────────────── */

.page-header {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-subtitle { color: var(--text2); font-size: 13px; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
  transition: border-color .2s, transform .2s;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-l));
  opacity: 0;
  transition: opacity .2s;
}

.stat-card:hover { border-color: var(--border2); transform: translateY(-1px); }
.stat-card:hover::before { opacity: 1; }

.stat-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text2);
  margin-bottom: 8px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.stat-sub {
  font-size: 12px;
  color: var(--text2);
  margin-top: 4px;
}

.stat-icon {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 28px;
  opacity: .07;
}

/* ── Card ────────────────────────────────────────────────────────────────── */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title-icon { font-size: 16px; opacity: .7; }

.card-actions { display: flex; align-items: center; gap: 8px; }

/* ── Table ───────────────────────────────────────────────────────────────── */

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

thead tr {
  background: var(--surface2);
}

th {
  padding: 10px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text2);
  white-space: nowrap;
}

td {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  vertical-align: middle;
}

tr:hover td { background: rgba(255,255,255,.02); }

.td-height {
  font-weight: 600;
  color: var(--primary-l);
}

.td-hash {
  color: var(--hash);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}

.td-addr {
  color: var(--addr);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}

.td-muted { color: var(--text2); }

.td-amount {
  font-weight: 600;
  color: var(--green);
}

/* ── Badges ──────────────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}

.badge-coinbase {
  background: rgba(124, 58, 237, 0.15);
  color: var(--primary-l);
  border: 1px solid rgba(124, 58, 237, .25);
}

.badge-tx {
  background: rgba(88, 166, 255, 0.1);
  color: var(--blue);
  border: 1px solid rgba(88, 166, 255, .2);
}

.badge-count {
  background: var(--surface2);
  color: var(--text2);
  border: 1px solid var(--border);
}

/* ── Info rows (block detail) ────────────────────────────────────────────── */

.info-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 0;
}

.info-row {
  display: contents;
}

.info-row > div {
  padding: 12px 24px;
  border-top: 1px solid var(--border);
}

.info-row:first-child > div { border-top: none; }

.info-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--text2);
  display: flex;
  align-items: center;
}

.info-value {
  display: flex;
  align-items: center;
  gap: 8px;
  word-break: break-all;
}

/* ── Tx Card ─────────────────────────────────────────────────────────────── */

.tx-list { padding: 0 24px 24px; }

.tx-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-top: 16px;
  overflow: hidden;
}

.tx-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.tx-id {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--hash);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tx-io {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 16px;
  padding: 16px;
  align-items: start;
}

.io-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text2);
  margin-bottom: 8px;
}

.io-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 24px;
  color: var(--text3);
  font-size: 18px;
}

.io-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.io-row:last-child { border-bottom: none; }

.io-addr {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--addr);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.io-genesis { color: var(--text2); font-style: italic; }

.io-val {
  font-weight: 600;
  color: var(--green);
  white-space: nowrap;
  font-size: 13px;
}

.io-empty { color: var(--text3); font-size: 12px; font-style: italic; }

/* ── Pagination ──────────────────────────────────────────────────────────── */

.pagination {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

.page-info { color: var(--text2); font-size: 12px; flex: 1; }

/* ── Nav arrows (block detail) ───────────────────────────────────────────── */

.block-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
}

.block-nav-label {
  font-size: 12px;
  color: var(--text2);
  margin: 0 4px;
}

/* ── Breadcrumb ──────────────────────────────────────────────────────────── */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text2);
  font-size: 13px;
  margin-bottom: 20px;
}

.breadcrumb a { color: var(--text2); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb-sep { color: var(--text3); }
.breadcrumb-current { color: var(--text); }

/* ── Address header ──────────────────────────────────────────────────────── */

.addr-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.addr-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--green));
  flex-shrink: 0;
}

.addr-title { font-size: 18px; font-weight: 700; }
.addr-mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--addr);
  word-break: break-all;
}

/* ── Skeleton loading ────────────────────────────────────────────────────── */

.skeleton {
  background: linear-gradient(90deg, var(--surface2) 25%, var(--border) 50%, var(--surface2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Live dot ────────────────────────────────────────────────────────────── */

.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
  margin-right: 4px;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%  { opacity: .5; transform: scale(1.3); }
}

/* ── Empty / Error states ────────────────────────────────────────────────── */

.state-box {
  text-align: center;
  padding: 60px 24px;
  color: var(--text2);
}

.state-icon { font-size: 40px; margin-bottom: 16px; opacity: .5; }
.state-title { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.state-msg { font-size: 13px; }

/* ── Copy button ─────────────────────────────────────────────────────────── */

.copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text3);
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 13px;
  transition: color .15s;
  flex-shrink: 0;
}
.copy-btn:hover { color: var(--text2); background: var(--surface2); }

/* ── Footer ──────────────────────────────────────────────────────────────── */

footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  margin-top: 48px;
  color: var(--text3);
  font-size: 12px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

footer a { color: var(--text2); }
footer a:hover { color: var(--text); }

/* ── Responsive ──────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .navbar-search { display: none; }
  .info-grid { grid-template-columns: 1fr; }
  .info-label { padding-bottom: 4px; }
  .info-value { padding-top: 0; }
  .tx-io { grid-template-columns: 1fr; }
  .io-arrow { display: none; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-value { font-size: 22px; }
}

/* ── Utilities ───────────────────────────────────────────────────────────── */
.flex { display: flex; }
.items-center { align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.text-muted { color: var(--text2); }
.text-xs { font-size: 11px; }
.font-bold { font-weight: 700; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mt-4 { margin-top: 4px; }
.mb-8 { margin-bottom: 8px; }
.w-full { width: 100%; }