:root {
  --bg: #0f1115;
  --card: #171a21;
  --text: #e6edf3;
  --muted: #98a6b3;
  --accent: #4cc2ff;
  --good: #4ade80;
}

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

.topbar {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid #27303f;
}
.topbar h1 { margin: 0; }
.topbar p { margin: .25rem 0 0; color: var(--muted); }

.grid {
  max-width: 1100px;
  margin: 1rem auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1rem;
  padding: 0 1rem 2rem;
}

.card {
  background: var(--card);
  border: 1px solid #27303f;
  border-radius: 12px;
  padding: 1rem;
}

.sub { color: var(--accent); margin-bottom: .6rem; }
.analysis .row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px dashed #2e3a4d;
  padding: .4rem 0;
}
.meta, .muted { color: var(--muted); }

.leaderboard { margin: 0; padding-left: 1.2rem; }
.leaderboard li { margin: .55rem 0; }
.score { color: var(--good); font-weight: 700; }

form { display: grid; gap: .6rem; }
label { display: grid; gap: .3rem; font-size: .93rem; }
input {
  background: #0f1420;
  color: var(--text);
  border: 1px solid #324158;
  border-radius: 8px;
  padding: .6rem;
}
button {
  margin-top: .3rem;
  background: var(--accent);
  color: #001625;
  border: 0;
  border-radius: 8px;
  padding: .7rem;
  font-weight: 700;
  cursor: pointer;
}

footer {
  border-top: 1px solid #27303f;
  text-align: center;
  padding: .8rem;
  color: var(--muted);
}