:root {
  --bg: #0a0a0c;
  --card: #101013;
  --card-line: #1d1d24;
  --text: #f2f2f5;
  --muted: #7a7a88;
  /* --accent is overwritten per category by app.js */
  --accent: #e8203f;
  --radius: 12px;
}

* { box-sizing: border-box; }

/* Always reserve the scrollbar gutter. Without this a short page (Stats) has no scrollbar
   and a long one (Leaderboards) does, so centred content shifts sideways between the two. */
html {
  scrollbar-gutter: stable;
  overflow-y: scroll;
}

body {
  margin: 0;
  padding: 0 0 72px;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1320px; margin: 0 auto; padding: 32px 24px 0; }

/* ---------- top bar ---------- */

.topbar {
  border-bottom: 1px solid var(--card-line);
  background: linear-gradient(180deg, #17171d 0%, #101014 60%, #0c0c10 100%);
}
.topbar-inner {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  position: relative;
  padding: 16px 14px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: color 0.15s;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--text); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
}

/* ---------- header ---------- */

.head { margin-bottom: 26px; }
.head h1 { margin: 0; font-size: 32px; font-weight: 800; letter-spacing: -0.02em; }

/* ---------- tabs + period ---------- */

.controls {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--card-line);
  margin-bottom: 24px;
}

.tabs { display: flex; gap: 10px; flex-wrap: wrap; flex: 1 1 auto; }

.tab {
  appearance: none;
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid var(--card-line);
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.tab:hover { background: rgba(255, 255, 255, 0.04); }
.tab[aria-selected="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.period select {
  appearance: none;
  padding: 9px 40px 9px 16px;
  border-radius: 10px;
  border: 1px solid var(--card-line);
  background: var(--card)
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%237a7a88' stroke-width='2' stroke-linecap='round'/></svg>")
    no-repeat right 14px center;
  color: var(--text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

/* ---------- grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.card {
  position: relative;
  padding: 18px 14px 20px;
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  background: var(--card);
  text-align: center;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.2s;
}
.card:hover { transform: translateY(-2px); border-color: #2a2a34; }

.card.top {
  border-color: var(--accent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent),
    0 0 22px -6px color-mix(in srgb, var(--accent) 45%, transparent);
}

.rank {
  position: absolute;
  top: 12px; left: 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.card.top .rank { color: var(--accent); }

.avatar {
  width: 88px; height: 88px;
  margin: 8px auto 14px;
  border-radius: 50%;
  background: #17171c;
  border: 2px solid var(--card-line);
  object-fit: cover;
  display: block;
}
.card.top .avatar { border-color: var(--accent); }
.avatar.fallback {
  display: grid;
  place-items: center;
  font-size: 30px;
  font-weight: 700;
  color: var(--muted);
}

.name {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.score { font-size: 15px; }
.score b {
  color: var(--accent);
  font-size: 18px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.score span { color: var(--muted); font-size: 13px; margin-left: 4px; }

.state {
  grid-column: 1 / -1;
  padding: 60px 0;
  text-align: center;
  color: var(--muted);
}

/* Switching category swaps content in place — reserving the height stops the page jumping. */
.grid { min-height: var(--grid-height, 0px); }

/* ---------- responsive ---------- */

@media (max-width: 1100px) { .grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 880px)  { .grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 620px) {
  body { padding: 0 0 56px; }
  .wrap { padding: 22px 16px 0; }
  .topbar-inner { padding: 0 16px; }
  .nav-link { padding: 14px 10px; font-size: 14px; }
  .nav-link.active::after { left: 10px; right: 10px; }
  .head h1 { font-size: 26px; }
  .grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .avatar { width: 68px; height: 68px; }
  .controls { gap: 12px; }
  .period, .tabs { width: 100%; }
  .period select { width: 100%; }
}


/* ---------- stats page ---------- */

.stats-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  align-items: start;
}

.sidebar {
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 14px 12px;
  position: sticky;
  top: 24px;
}

.group-label {
  margin: 14px 8px 8px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.group-label:first-child { margin-top: 4px; }

.group-items { display: flex; flex-direction: column; gap: 2px; }

.item {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 500;
  text-align: left;
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.item:hover { background: rgba(255, 255, 255, 0.04); color: var(--text); }
.item.active {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--text);
  font-weight: 600;
  box-shadow: inset 2px 0 0 var(--accent);
}

.detail {
  border: 1px solid var(--card-line);
  border-radius: var(--radius);
  background: var(--card);
  padding: 26px 28px 30px;
}

.detail-title {
  margin: 0 0 22px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.stat {
  padding: 18px 16px;
  border: 1px solid var(--card-line);
  border-radius: 10px;
  background: #0d0d11;
}
.stat-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.stat-label {
  margin-top: 5px;
  font-size: 13px;
  color: var(--muted);
}

.note { margin: 20px 0 0; color: var(--muted); font-size: 13px; }

@media (max-width: 760px) {
  .stats-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .group-items { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
  .detail { padding: 20px 18px 24px; }
}