/* css/stats.css - standalone stylesheet for stats/index.html (the Part
   Statistics page). Self-contained on purpose: this page is not part of the
   judge/ certification system, so it doesn't depend on judge.css. */
:root {
  --neon-green: #39ff88;
  --neon-orange: #ff8a1e;
  --neon-pink: #ff2fd0;
  --neon-cyan: #00e5ff;
  --neon-gold: #ffcf40;
  --glass-bg: rgba(16, 18, 26, 0.55);
  --glass-bg-strong: rgba(8, 9, 14, 0.78);
  --glass-border: rgba(255, 255, 255, 0.10);
  --text-main: #eef2ff;
  --text-dim: #9aa5c0;
  --topbar-height: 56px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at 12% 18%, rgba(57, 255, 136, 0.10), transparent 40%),
    radial-gradient(circle at 88% 22%, rgba(0, 229, 255, 0.10), transparent 40%),
    radial-gradient(circle at 50% 92%, rgba(255, 47, 208, 0.09), transparent 45%),
    #050609;
  color: var(--text-main);
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
}

a { color: inherit; }

/* ---- Topbar ---- */
.stats-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: var(--topbar-height);
  padding: 8px 16px;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  flex-wrap: wrap;
}
.brand { text-decoration: none; font-weight: 800; letter-spacing: 1px; font-size: 20px; }
.brand-bx { color: var(--neon-cyan); }
.brand-arena { color: var(--neon-pink); margin-left: 3px; }
.stats-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.stats-nav a {
  text-decoration: none;
  color: var(--text-main);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 13px;
}
.stats-nav a:hover, .stats-nav a:focus-visible { border-color: var(--neon-cyan); }
.stats-nav a[aria-current="page"] { color: var(--neon-cyan); border-color: var(--neon-cyan); }

/* ---- Layout ---- */
.stats-main { max-width: 1080px; margin: 0 auto; padding: 22px 16px 48px; }
.stats-hero { padding: 10px 0 18px; }
.stats-hero h1 { margin: 4px 0 8px; font-size: 30px; }
.stats-lead { margin: 0; color: var(--text-dim); font-size: 15px; max-width: 68ch; }
.eyebrow { color: var(--neon-cyan); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; }

.panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 18px;
  backdrop-filter: blur(10px);
  margin-bottom: 16px;
}
.panel h2 { margin: 0 0 10px; font-size: 19px; }
.panel h3 { margin: 18px 0 8px; font-size: 15px; color: var(--neon-cyan); }
.panel p { color: #dbe4f5; line-height: 1.6; font-size: 14px; }

.figure-caption {
  color: var(--text-dim); font-size: 12.5px; font-style: italic;
  margin: 6px 0 14px; padding-left: 10px; border-left: 2px solid var(--glass-border);
}

/* ---- Sortable stat tables ---- */
.rule-table { width: 100%; border-collapse: collapse; margin: 10px 0 16px; font-size: 13px; }
.rule-table th, .rule-table td { border: 1px solid var(--glass-border); padding: 8px 10px; text-align: left; color: #dbe4f5; }
.rule-table th { color: var(--neon-cyan); background: rgba(0, 229, 255, 0.08); }

.stats-count { color: var(--text-dim); font-weight: 400; font-size: 12px; }
.stats-table-wrap { overflow-x: auto; margin-bottom: 20px; -webkit-overflow-scrolling: touch; }
.sortable-stats th[data-key] { cursor: pointer; user-select: none; white-space: nowrap; }
.sortable-stats th[data-key]:hover, .sortable-stats th[data-key]:focus-visible { background: rgba(0, 229, 255, 0.18); outline: none; }
.sortable-stats th[data-key]::after { content: "\2195"; margin-left: 5px; opacity: 0.35; font-size: 11px; }
.sortable-stats th.sorted-asc::after { content: "\2191"; opacity: 1; color: var(--neon-green); }
.sortable-stats th.sorted-desc::after { content: "\2193"; opacity: 1; color: var(--neon-orange); }
.sortable-stats td { white-space: nowrap; }

/* ---- Footer ---- */
.stats-footer {
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 10px;
  max-width: 1080px; margin: 0 auto; padding: 16px 16px 28px; text-align: center;
  font-size: 11.5px; color: var(--text-dim);
}
.stats-footer a { color: var(--neon-cyan); text-decoration: none; }
.stats-footer a:hover, .stats-footer a:focus-visible { text-decoration: underline; }

@media (max-width: 700px) {
  .stats-hero h1 { font-size: 24px; }
}