:root {
  --wrap: 1100px;
  --gap: 12px;
  --radius: 14px;
  --bg: #0c0c0e;
  --card: #141417;
  --border: #222228;
  --text: #e9e9ee;
  --muted: #a7a7b0;
  --brand: #f2a900; /* BTC gold-ish */
  --warn: #f59e0b;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }

/* Nav */
.nav { position: sticky; top: 0; background: rgba(12,12,14,.9); border-bottom: 1px solid var(--border); backdrop-filter: blur(6px); z-index: 10; }
.nav__inner { max-width: var(--wrap); margin: 0 auto; padding: 10px 12px; display: flex; align-items: center; justify-content: space-between; }
.brand {display: flex; align-items: center;}
.brand__name { font-weight: 700; letter-spacing: .2px; color: var(--brand); }
.nav__links a { color: var(--muted); text-decoration: none; margin-left: 14px; }
.nav__links a[aria-current="page"] { color: var(--text); }
/* Keep in view below sticky nav */
html { scroll-padding-top: 60px; }           /* global offset */
#result, .list__item, .callout, .card { 
  scroll-margin-top: 60px;                   /* per-target safety */
}

/* Layout */
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 12px; }
.grid { display: grid; grid-template-columns: 1fr; gap: var(--gap) }
@media (min-width: 600px) { .grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 950px) { .grid { grid-template-columns: 1fr 1fr 1fr; } }

/* Cards */
.card { 
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.card__head h2 { margin: 0 0 6px; font-size: 16px; color: var(--muted); }
.card__foot { margin-top: 8px; }
.card--muted { opacity: 0.85; }

.metric-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.metric { font-size: 28px; line-height: 1.1; }
.label { font-size: 12px; color: var(--muted); }
.sub { font-size: 12px; color: var(--muted); }
.metric--big { font-size: 34px; }
.metric--sm  { font-size: 20px; }

/* Info dot */
.info-dot {
  display: inline-block;
  width: 14px; height: 14px;
  line-height: 14px; text-align: center;
  font-size: 10px; border: 1px solid var(--border);
  border-radius: 50%; color: var(--muted);
  cursor: help; margin-left: 6px; user-select: none;
}
.info-dot:hover { color: var(--text); }

/* Explorer */
.section { margin-top: 12px; }
.search { display: flex; gap: 8px; margin-bottom: 10px; }
.search__input {
  flex: 1; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--border); background: #0f0f12; color: var(--text);
}
.search__btn {
  padding: 10px 14px; border-radius: 10px; background: var(--brand);
  border: 1px solid #8a6b00; color: #1a1400; font-weight: 600; cursor: pointer;
}
.search__btn:hover { filter: brightness(1.05); }

.explorer__cols { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 900px) { .explorer__cols { grid-template-columns: 1fr 1fr; } }
.explorer__h3 { margin: 0 0 8px; font-size: 14px; color: var(--muted); }

.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.list__item {
  display: grid; gap: 6px; padding: 10px; border: 1px solid var(--border); border-radius: 10px;
  background: #121215;
}
.list__item .muted { color: var(--muted); font-size: 12px; }

.btn {
  justify-self: start; padding: 6px 10px; border-radius: 8px; border: 1px solid var(--border);
  background: #19191d; color: var(--text); cursor: pointer; font-size: 12px;
}
.btn--sm { padding: 5px 8px; font-size: 12px; }
.btn:hover { filter: brightness(1.06); }

.result .callout {
  border: 1px solid var(--border); border-radius: 10px; padding: 10px; background: #121215;
}

.mono-wrap {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  overflow-wrap: anywhere;   /* allow breaking anywhere in long hashes */
  word-break: break-word;    /* break long tokens */
  white-space: normal;       /* allow wrapping (not single-line) */
}

.hidden { display: none !important; }

.txstatus-status--confirmed {
  color: #2ecc71; /* green */
}

.txstatus-status--mempool {
  color: #f1c40f; /* yellow */
}

.txstatus-status--unknown {
  color: #999;
}

.txstatus-status--error {
  color: #ff6b6b;
}


/* Footer */
.footer { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 10px; }