:root {
  --bg: #070b12;
  --panel: #111827;
  --line: #243049;
  --text: #eaf0fa;
  --dim: #9aa8c2;
  --muted: #6d7a94;
  --accent: #006fd6;
  --accent-2: #5aa9ff;
  --good: #2ecc71;
  --radius: 18px;
  color-scheme: dark;
}
.theme-light {
  --bg: #f5f8fd; --panel: #fff; --line: #e1e8f4; --text: #121822;
  --dim: #566378; --muted: #8793a8; color-scheme: light;
}
.theme-light .brand img { filter: none; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    radial-gradient(90% 60% at 80% -10%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 55%),
    radial-gradient(70% 50% at 0% 20%, color-mix(in srgb, #0a86e8 16%, transparent), transparent 50%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}
.bg-grid {
  position: fixed; inset: 0; pointer-events: none; opacity: .22;
  background-image:
    linear-gradient(color-mix(in srgb, var(--line) 70%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--line) 70%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 20%, transparent 75%);
}

.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }

.site-header { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(12px); background: color-mix(in srgb, var(--bg) 78%, transparent); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 36px; height: 36px; border-radius: 10px; background: #fff; filter: invert(1); }
.brand .name { font-weight: 800; letter-spacing: -.02em; }
.brand .sub { font-size: 12px; color: var(--dim); }
.header-actions { display: flex; align-items: center; gap: 8px; }
.pill {
  font-size: 11px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: var(--accent-2); border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-radius: 999px; padding: 5px 10px;
}
.ghost, .lookup button, .chip {
  font-family: inherit; cursor: pointer; border-radius: 10px;
}
.ghost {
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  border: 1px solid var(--line); color: var(--text); padding: 8px 12px; font-weight: 650;
}
.ghost.sm { padding: 6px 10px; font-size: 12px; }
.ghost:hover { border-color: var(--accent); }

.hero { padding: 42px 0 18px; max-width: 760px; }
.hero h1 {
  margin: 0 0 10px; font-size: clamp(28px, 4vw, 44px); letter-spacing: -.03em; line-height: 1.1;
}
.hero p { margin: 0 0 22px; color: var(--dim); font-size: 16px; line-height: 1.5; }
.lookup {
  display: flex; gap: 10px; padding: 8px; border-radius: 16px;
  background: var(--panel); border: 1px solid var(--line);
  box-shadow: 0 16px 50px rgba(0, 20, 50, .25);
}
.lookup input {
  flex: 1; min-width: 0; border: none; outline: none; background: transparent;
  color: var(--text); font-size: 15px; font-family: ui-monospace, Menlo, monospace; padding: 10px 12px;
}
.lookup button {
  border: none; color: #fff; font-weight: 750; padding: 12px 18px;
  background: linear-gradient(180deg, #0a86e8, var(--accent));
}
.lookup button:hover { filter: brightness(1.06); }
.lookup.invalid { border-color: #ff5c5c; }
.recents { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.recent {
  border: 1px solid var(--line); background: color-mix(in srgb, var(--panel) 80%, transparent);
  color: var(--dim); border-radius: 999px; padding: 5px 10px; font-size: 12px;
  font-family: ui-monospace, Menlo, monospace; cursor: pointer;
}
.recent:hover { color: var(--text); border-color: var(--accent); }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 18px 0 20px;
}
.stat {
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 14px 16px;
}
.stat span { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); margin-bottom: 6px; }
.stat strong { font-size: 22px; letter-spacing: -.02em; word-break: break-all; }

.layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 16px; margin-bottom: 36px; }
.panel {
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 16px;
  min-height: 320px;
}
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.panel-head h2 { margin: 0; font-size: 15px; letter-spacing: -.01em; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  border: 1px solid var(--line); background: transparent; color: var(--dim);
  font-size: 12px; font-weight: 650; padding: 5px 9px;
}
.chip.active, .chip:hover { color: var(--text); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }

.chain-block { margin-bottom: 14px; }
.chain-block h3 {
  margin: 0 0 8px; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--dim);
  display: flex; justify-content: space-between; gap: 8px;
}
.row {
  display: flex; align-items: center; gap: 10px; padding: 10px 0;
  border-top: 1px solid var(--line);
}
.row:first-child { border-top: none; }
.ic { width: 34px; height: 34px; border-radius: 50%; background: #1a2336; object-fit: cover; }
.meta { flex: 1; min-width: 0; }
.meta b { display: block; font-size: 14px; }
.meta span { font-size: 12px; color: var(--dim); }
.vals { text-align: right; }
.vals b { display: block; font-size: 13px; }
.vals span { font-size: 12px; color: var(--dim); }
.tx a { color: inherit; text-decoration: none; display: flex; gap: 10px; align-items: center; padding: 10px 0; border-top: 1px solid var(--line); }
.tx a:first-child { border-top: none; }
.tx a:hover { color: var(--accent-2); }
.dir {
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
  font-size: 12px; font-weight: 800; border: 1px solid var(--line);
}
.dir.in { color: var(--good); background: color-mix(in srgb, var(--good) 12%, transparent); }
.dir.out { color: var(--accent-2); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.empty, .error {
  color: var(--dim); font-size: 13px; padding: 18px 4px; line-height: 1.5;
}
.error { color: #ffb020; }

.features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 10px 0 40px;
}
.features article {
  border: 1px solid var(--line); border-radius: 16px; padding: 18px;
  background: color-mix(in srgb, var(--panel) 70%, transparent);
}
.features h3 { margin: 0 0 6px; font-size: 15px; }
.features p { margin: 0; color: var(--dim); font-size: 13px; line-height: 1.5; }

.site-footer {
  border-top: 1px solid var(--line); padding: 18px 0 28px;
  color: var(--muted); font-size: 12px;
}
.site-footer a { color: var(--accent-2); }

@media (max-width: 900px) {
  .stats, .layout, .features { grid-template-columns: 1fr; }
  .lookup { flex-direction: column; }
}