/* ----------------------------------------------------
   SAME-PROMPT AI BENCHMARK ARENA
---------------------------------------------------- */
.arena-page { max-width: 1240px; margin: 0 auto; padding: 48px 24px 96px; }
.arena-hero { text-align: center; max-width: 800px; margin: 0 auto 40px; }
.arena-eyebrow { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.arena-tag { font-size: 11.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--or); background: rgba(255, 74, 18, 0.1); border: 1px solid rgba(255, 74, 18, 0.3); padding: 4px 12px; border-radius: 999px; }
.arena-status-badge { font-size: 12px; font-weight: 600; color: var(--mut); background: var(--s2); border: 1px solid var(--line); padding: 4px 12px; border-radius: 999px; }
.arena-title { font-size: clamp(28px, 4vw, 44px); font-weight: 800; letter-spacing: -.03em; margin: 0 0 14px; color: var(--ink); }
.arena-lead { font-size: 16px; color: var(--mut); line-height: 1.6; margin: 0; }

.arena-selector-section { background: var(--s1); border: 1px solid var(--line); border-radius: 24px; padding: 28px; margin-bottom: 32px; }
.arena-sel-label { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--mut); display: block; margin-bottom: 12px; }
.arena-prompt-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 20px; }
.arena-tab { display: flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 12px; background: var(--s2); border: 1px solid var(--line); color: var(--mut); font-size: 13px; font-weight: 700; cursor: pointer; transition: all .2s; font-family: inherit; }
.arena-tab:hover { color: var(--ink); border-color: var(--mut); }
.arena-tab.active { background: var(--or); color: #FFF; border-color: var(--or); box-shadow: 0 4px 16px rgba(255, 74, 18, 0.25); }

.arena-prompt-box { background: var(--bg); border: 1px solid var(--line); border-radius: 16px; padding: 18px 22px; }
.prompt-box-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; gap: 10px; }
.prompt-lbl { font-size: 11px; font-weight: 800; text-transform: uppercase; color: var(--ye); letter-spacing: .06em; }
.btn-copy-arena-prompt { font-size: 11px; font-weight: 700; background: var(--s2); border: 1px solid var(--line); color: var(--ink); padding: 4px 10px; border-radius: 999px; cursor: pointer; transition: all .15s; font-family: inherit; }
.btn-copy-arena-prompt:hover { border-color: var(--ye); color: var(--ye); }
.prompt-text { font-size: 14px; line-height: 1.6; color: var(--ink); margin: 0; font-family: ui-monospace, SFMono-Regular, monospace; background: rgba(255,255,255,0.02); padding: 8px 12px; border-radius: 8px; }

.arena-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
@media (max-width: 960px) {
  .arena-grid { grid-template-columns: 1fr; }
}

.arena-card { background: var(--s1); border: 1px solid var(--line); border-radius: 22px; padding: 24px; display: flex; flex-direction: column; transition: transform .2s, border-color .2s; }
.arena-card.card-winner { border-color: rgba(255, 232, 31, 0.45); box-shadow: 0 10px 30px rgba(255, 232, 31, 0.08); }
.arena-card-top { margin-bottom: 18px; }
.arena-rank-badge { display: inline-flex; align-items: center; font-size: 11px; font-weight: 800; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; margin-bottom: 12px; letter-spacing: .04em; }
.arena-rank-badge.gold { background: rgba(255, 232, 31, 0.15); color: #FFE81F; border: 1px solid rgba(255, 232, 31, 0.35); }
.arena-rank-badge.silver { background: rgba(203, 213, 225, 0.15); color: #E2E8F0; border: 1px solid rgba(203, 213, 225, 0.3); }
.arena-rank-badge.bronze { background: rgba(245, 158, 11, 0.15); color: #FBBF24; border: 1px solid rgba(245, 158, 11, 0.3); }

.arena-model-info { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.arena-avatar { width: 44px; height: 44px; border-radius: 12px; background: #D97706; color: #FFF; font-weight: 900; font-size: 20px; display: grid; place-items: center; flex: none; }
.arena-model-name { font-size: 17px; font-weight: 800; color: var(--ink); margin: 0 0 2px; }
.arena-model-maker { font-size: 12px; color: var(--mut); }

.arena-metrics { display: flex; gap: 8px; flex-wrap: wrap; }
.arena-metrics .metric { font-size: 11.5px; font-weight: 700; color: var(--mut); background: var(--s2); border: 1px solid var(--line); padding: 2px 8px; border-radius: 6px; }
.tag-green { background: rgba(16, 185, 129, 0.15); color: #34D399; }
.tag-orange { background: rgba(249, 115, 22, 0.15); color: #FB923C; }

.arena-output-box { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 18px; margin-bottom: 18px; flex: 1; display: flex; flex-direction: column; }
.output-header { font-size: 11px; font-weight: 800; text-transform: uppercase; color: var(--mut); letter-spacing: .06em; margin-bottom: 10px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.output-body { font-size: 13.5px; line-height: 1.6; color: #D1D5DB; }
.output-body p { margin: 0 0 8px; }
.output-body p:last-child { margin-bottom: 0; }

.arena-actions { display: flex; gap: 8px; align-items: center; margin-top: auto; }
.btn-arena-vote { flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 14px; border-radius: 10px; background: rgba(255, 74, 18, 0.12); border: 1px solid rgba(255, 74, 18, 0.35); color: var(--or); font-size: 12.5px; font-weight: 800; cursor: pointer; transition: all .15s; font-family: inherit; }
.btn-arena-vote:hover { background: var(--or); color: #FFF; }
.btn-arena-vote.voted { background: #10B981 !important; color: #FFF !important; border-color: #059669 !important; }
.vote-count { font-size: 11px; font-weight: 700; background: rgba(0,0,0,0.2); padding: 2px 6px; border-radius: 4px; }


/* Light Mode Overrides for Arena */
:root[data-theme="light"] .arena-selector-section,
:root[data-theme="light"] .arena-card {
  background: #FFFFFF;
  border-color: #E5E7EB;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}
:root[data-theme="light"] .arena-tab,
:root[data-theme="light"] .arena-metrics .metric {
  background: #F9FAFB;
  border-color: #E5E7EB;
  color: #1F2937;
}
:root[data-theme="light"] .arena-prompt-box,
:root[data-theme="light"] .arena-output-box {
  background: #F8FAFC;
  border-color: #E2E8F0;
}
:root[data-theme="light"] .output-body {
  color: #334155;
}

/* Arena Empirical Benchmark additions */
.arena-audit-meta {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--mut);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.arena-model-id {
  font-size: 11px;
  background: var(--s2);
  color: var(--mut);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
}
.output-sub-tag {
  font-size: 11px;
  color: var(--mut);
  font-style: italic;
}
.prompt-box-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.prompt-run-stamp {
  font-size: 12px;
  font-weight: 600;
  color: var(--mut);
}