:root {
  --bg: #0b1220;
  --panel: #111b2e;
  --edge: #1e2d4a;
  --text: #dbe7ff;
  --dim: #8fa3c8;
  --ice: #7dd3fc;
  --ice-deep: #0ea5e9;
  --ok: #4ade80;
  --bad: #f87171;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 70% -10%, #16263f 0%, var(--bg) 60%);
  color: var(--text);
  font: 1rem/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh;
}

main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.25rem 4rem; }

h1 { font-size: 1.7rem; margin: 0 0 .5rem; letter-spacing: -.02em; }
.sub { color: var(--dim); margin: 0 0 2rem; }
a { color: var(--ice); }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .92em; }

.tabs { display: flex; gap: .5rem; margin-bottom: 1.25rem; }
.tab {
  background: none; border: 1px solid var(--edge); color: var(--dim);
  padding: .45rem 1rem; border-radius: 999px; cursor: pointer; font: inherit;
}
.tab.active { color: var(--text); border-color: var(--ice-deep); background: #0e1a2e; }

#claim-form { display: flex; gap: .6rem; }
#address {
  flex: 1; background: var(--panel); border: 1px solid var(--edge);
  color: var(--text); border-radius: .6rem; padding: .7rem .9rem;
  font-family: ui-monospace, Menlo, monospace; font-size: .95rem;
}
#address:focus { outline: none; border-color: var(--ice-deep); }
button[type="submit"] {
  background: var(--ice-deep); border: none; color: #04121f; font-weight: 650;
  padding: .7rem 1.2rem; border-radius: .6rem; cursor: pointer; font: inherit;
  font-weight: 700; white-space: nowrap;
}
button[type="submit"]:disabled { opacity: .45; cursor: default; }
.ghost {
  background: none; border: 1px solid var(--edge); color: var(--dim);
  border-radius: .5rem; padding: .35rem .9rem; cursor: pointer; font: inherit;
  font-size: .85rem;
}

#panel {
  margin-top: 1.5rem; background: var(--panel); border: 1px solid var(--edge);
  border-radius: .8rem; padding: 1.1rem 1.25rem;
}
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: .75rem; }
.stats div { display: flex; flex-direction: column; }
.stats span { font-size: 1.25rem; font-variant-numeric: tabular-nums; font-weight: 650; }
.stats label { color: var(--dim); font-size: .75rem; }

.bar {
  margin: 1rem 0 .6rem; height: .55rem; background: #0a1626;
  border-radius: 999px; overflow: hidden; border: 1px solid var(--edge);
}
#bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--ice-deep), var(--ice));
  transition: width .4s ease;
}
.phase { color: var(--dim); font-size: .9rem; margin: .2rem 0 .6rem; }

#result {
  margin-top: 1.25rem; border-radius: .8rem; padding: 1rem 1.25rem;
  border: 1px solid var(--edge); background: var(--panel);
  word-break: break-all;
}
#result.ok { border-color: #14532d; }
#result.err { border-color: #7f1d1d; }
#result .big { font-weight: 700; }
#result.ok .big { color: var(--ok); }
#result.err .big { color: var(--bad); }

pre {
  background: var(--panel); border: 1px solid var(--edge);
  border-radius: .6rem; padding: .9rem 1rem; overflow-x: auto;
  font-size: .85rem; line-height: 1.5;
}
h3 { margin: 1.4rem 0 .4rem; font-size: 1.02rem; }

footer { margin-top: 3rem; color: var(--dim); font-size: .82rem; }
.hidden { display: none; }