*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

[hidden] { display: none !important; }

:root {
  --bg: #0a0a0a;
  --surface: #111;
  --surface2: #181818;
  --border: #222;
  --text: #f0f0f0;
  --muted: #666;
  --yes: #22c55e;
  --yes-glow: rgba(34,197,94,.25);
  --no: #ef4444;
  --no-glow: rgba(239,68,68,.25);
  --confirm: #fff;
  --radius: 14px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  height: 100dvh;
  overflow: hidden;
  display: grid;
  grid-template-rows: 44px 1fr;
}

/* ── Tab bar ─────────────────────────────────────────── */

.tab-bar {
  display: flex;
  align-items: stretch;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 0.75rem;
  gap: 0.25rem;
  z-index: 50;
}

.profile-btn {
  all: unset;
  display: flex;
  align-items: center;
  margin-right: auto;
  padding: 0 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.profile-btn:hover { color: var(--text); }

.tab-btn {
  all: unset;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--text); border-bottom-color: var(--text); }

/* ── Layout ──────────────────────────────────────────── */

.game-wrapper {
  display: grid;
  grid-template-columns: 1fr 380px;
  height: 100%;
  min-height: 0;
  grid-row: 2;
}

/* ── Mode selector ───────────────────────────────────── */

.mode-selector {
  display: flex;
  flex-wrap: wrap;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}

.mode-btn {
  all: unset;
  flex: 1 1 auto;
  min-width: 70px;
  text-align: center;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.18s ease;
}

.mode-btn:hover { color: var(--text); }
.mode-btn.active {
  background: var(--confirm);
  color: #000;
}