.arena{max-width:640px;margin:0 auto}.arena-consent{font-size:.875rem;color:var(--bh-text-secondary,var(--bh-muted));line-height:1.6;margin:0 0 var(--bh-space-5);padding:var(--bh-space-3) var(--bh-space-4);border:1px dashed var(--bh-border,#d8d4cc);border-radius:var(--bh-radius-lg,12px);background:var(--bh-surface-2,#f6f3ec)}.arena-deck-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:var(--bh-space-4);gap:var(--bh-space-4)}.arena-deck-card{text-align:left;cursor:pointer;border:2px solid var(--bh-card-border,var(--bh-ink));border-radius:var(--bh-radius-lg,12px);background:var(--bh-surface);box-shadow:var(--bh-shadow-block-sm);padding:var(--bh-space-4);font:inherit;color:inherit;transition:transform var(--bh-duration,.15s) var(--bh-ease,ease),box-shadow var(--bh-duration,.15s) var(--bh-ease,ease)}.arena-deck-card:hover{transform:translateY(-2px)}.arena-deck-card:active{transform:translate(var(--bh-block-x,2px),var(--bh-block-y,2px));box-shadow:none}.arena-deck-card h3{margin:0 0 4px;font-family:var(--bh-font-display)}.arena-deck-card p{margin:0 0 10px;color:var(--bh-muted);font-size:.875rem}.arena-deck-card .arena-deck-count{font-size:.75rem;font-family:var(--bh-font-mono);color:var(--bh-muted)}.arena-round-head{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:var(--bh-space-3);gap:var(--bh-space-3)}.arena-deck-name{display:block;font-family:var(--bh-font-display);font-size:1rem;margin-bottom:2px}.arena-progress{display:flex;gap:6px;margin-bottom:var(--bh-space-4)}.arena-progress-dot{flex:1 1;height:4px;border-radius:999px;background:var(--bh-border,#d8d4cc)}.arena-progress-dot.is-done{opacity:.45}.arena-progress-dot.is-current,.arena-progress-dot.is-done{background:var(--bh-hen-blue,var(--bh-accent))}.arena-loading{min-height:2rem;animation:arena-pair-in .22s ease}.arena-error-row{margin-top:var(--bh-space-4);display:flex;flex-direction:column;gap:var(--bh-space-3)}.arena-round-counter{font-family:var(--bh-font-mono);font-size:.875rem;color:var(--bh-muted)}.arena-tts-toggle{border:2px solid var(--bh-ink);border-radius:999px;background:var(--bh-surface);padding:6px 14px;font-size:.8125rem;font-weight:700;cursor:pointer}.arena-tts-toggle[aria-pressed=true]{background:var(--bh-hen-blue,var(--bh-accent));color:var(--bh-on-accent,#fff)}.arena-pair{display:grid;grid-gap:var(--bh-space-3);gap:var(--bh-space-3);animation:arena-pair-in .28s ease}@keyframes arena-pair-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.arena-pick-btn{min-height:84px;padding:18px 22px;border:2px solid var(--bh-ink);border-radius:var(--bh-radius-lg,12px);background:var(--bh-surface);box-shadow:var(--bh-shadow-block);font-size:1.0625rem;font-weight:600;line-height:1.4;text-align:left;cursor:pointer;transition:transform var(--bh-duration,.15s) var(--bh-ease,ease),box-shadow var(--bh-duration,.15s) var(--bh-ease,ease),background var(--bh-duration,.15s) var(--bh-ease,ease)}.arena-pick-btn:hover:not(:disabled){transform:translateY(-2px)}.arena-pick-btn.is-chosen,.arena-pick-btn:active:not(:disabled){transform:translate(var(--bh-block-x,2px),var(--bh-block-y,2px));box-shadow:none;background:var(--bh-hen-blue-dim,var(--bh-surface-2))}.arena-pick-btn:disabled{cursor:default;opacity:.85}.arena-pick-btn.is-predicted:not(.is-chosen){border-color:var(--bh-hen-blue,var(--bh-accent));box-shadow:0 0 0 1px var(--bh-hen-blue,var(--bh-accent))}.arena-pick-score{display:block;margin-top:8px;font-size:.6875rem;font-weight:500}.arena-pick-score,.arena-vs{font-family:var(--bh-font-mono);color:var(--bh-muted)}.arena-vs{text-align:center;font-size:.75rem;letter-spacing:.08em;text-transform:uppercase}.arena-commentary{min-height:1.5em;margin-top:var(--bh-space-3);font-style:italic;color:var(--bh-text-secondary,var(--bh-muted));animation:arena-pair-in .22s ease}.arena-reveal-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:var(--bh-space-3)}.arena-reveal-item{border:2px solid var(--bh-card-border,var(--bh-ink));border-radius:var(--bh-radius-lg,12px);background:var(--bh-surface);padding:var(--bh-space-3) var(--bh-space-4)}.arena-reveal-rank{font-family:var(--bh-font-mono);font-weight:700;margin-right:8px;color:var(--bh-muted)}.arena-reveal-factors{margin-top:10px;font-size:.8125rem}.arena-reveal-factors summary{cursor:pointer;color:var(--bh-hen-blue,var(--bh-accent));font-weight:600}.arena-reveal-factors dl{display:grid;grid-template-columns:auto 1fr;grid-gap:4px 10px;gap:4px 10px;margin:8px 0 0;font-family:var(--bh-font-mono);font-size:.75rem}.arena-reveal-factors dt{color:var(--bh-muted)}.arena-reveal-factors dd{margin:0}.arena-share-row{display:flex;flex-wrap:wrap;gap:var(--bh-space-3);margin-top:var(--bh-space-5)}.arena-predict{margin-bottom:var(--bh-space-4);padding:var(--bh-space-3) var(--bh-space-4);border:2px dashed var(--bh-border,#d8d4cc);border-radius:var(--bh-radius-lg,12px);background:var(--bh-surface-2,#f6f3ec)}.arena-predict-label{margin:0 0 4px;font-family:var(--bh-font-mono);font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--bh-muted)}.arena-predict-choice{margin:0 0 10px;font-weight:700;line-height:1.4}.arena-predict-confidence{height:6px;background:var(--bh-border,#d8d4cc);border-radius:999px;overflow:hidden}.arena-predict-bar{height:100%;background:var(--bh-hen-blue,var(--bh-accent));border-radius:999px}.arena-predict-note{margin:10px 0 0;font-size:.8125rem;color:var(--bh-muted)}.arena-predict-confidence-label{margin:6px 0 0;font-family:var(--bh-font-mono);font-size:.6875rem;color:var(--bh-muted)}.arena-layer-stack{display:flex;flex-direction:column;gap:8px;margin-bottom:var(--bh-space-4)}.arena-layer-head{display:flex;justify-content:space-between;font-size:.8125rem}.arena-layer-weight{font-family:var(--bh-font-mono);color:var(--bh-muted)}.arena-layer-bar{height:8px;background:var(--bh-border,#d8d4cc);border-radius:999px;overflow:hidden}.arena-layer-fill{height:100%;background:var(--bh-muted);border-radius:999px;transition:width .3s ease}.arena-layer.is-lit .arena-layer-fill{background:var(--bh-hen-blue,var(--bh-accent))}.arena-layer.is-lit{animation:arena-layer-pulse .6s ease}@keyframes arena-layer-pulse{0%{opacity:.7}to{opacity:1}}.arena-layer-title{margin:0 0 6px;font-size:.75rem;font-family:var(--bh-font-mono);text-transform:uppercase;letter-spacing:.06em;color:var(--bh-muted)}.arena-shapley{margin-top:var(--bh-space-3);padding:var(--bh-space-3);border:2px solid var(--bh-card-border,var(--bh-ink));border-radius:var(--bh-radius-lg,12px)}.arena-shapley-lead{margin:0 0 10px;font-size:.8125rem;color:var(--bh-muted)}.arena-shapley-row{display:grid;grid-template-columns:72px 1fr 56px;grid-gap:8px;gap:8px;align-items:center;margin-bottom:6px;font-size:.8125rem}.arena-shapley-bar-wrap{height:6px;background:var(--bh-border,#d8d4cc);border-radius:999px;overflow:hidden}.arena-shapley-bar{height:100%;background:var(--bh-hen-blue,var(--bh-accent))}.arena-shapley-val{font-family:var(--bh-font-mono);text-align:right}.arena-shapley-picks{margin-top:12px}.arena-shapley-picks-label{display:block;font-size:.75rem;color:var(--bh-muted);margin-bottom:6px}.arena-shapley-chips{display:flex;flex-wrap:wrap;gap:6px}.arena-shapley-chip{font-family:var(--bh-font-mono);font-size:.6875rem;padding:4px 8px;border:1px solid var(--bh-border,#d8d4cc);border-radius:999px}.arena-explain-verdict{font-weight:700;margin:0 0 var(--bh-space-3)}.arena-explain-verdict.is-match{color:var(--bh-hen-blue,var(--bh-accent))}.arena-explain-verdict.is-surprise{color:var(--bh-clay,#b45309)}.arena-score-card{margin-bottom:var(--bh-space-4);padding:var(--bh-space-4);border:2px solid var(--bh-card-border,var(--bh-ink));border-radius:var(--bh-radius-lg,12px);background:var(--bh-surface-2,#f6f3ec)}.arena-score-headline{margin:0 0 6px;font-size:1.0625rem}.arena-score-sub{margin:0;font-size:.875rem}.arena-pick-timeline-wrap{margin-bottom:var(--bh-space-4)}.arena-pick-timeline-wrap summary{cursor:pointer;font-weight:600;margin-bottom:8px}.arena-reveal-heading{margin:0 0 var(--bh-space-3);font-family:var(--bh-font-display);font-size:1.125rem}.arena-reveal-item.is-picked{border-color:var(--bh-hen-blue,var(--bh-accent))}.arena-picked-badge{margin-left:8px;font-family:var(--bh-font-mono);font-size:.625rem;text-transform:uppercase;letter-spacing:.06em;color:var(--bh-hen-blue,var(--bh-accent))}.arena-pick-timeline{list-style:none;margin:0 0 var(--bh-space-4);padding:0;display:flex;flex-direction:column;gap:8px;font-size:.875rem}@media (max-width:480px){.arena-pick-btn{font-size:1rem;min-height:76px}}.arena-blind-setup{margin:0 0 var(--bh-space-5);font-size:1rem;line-height:1.55;color:var(--bh-text-secondary,var(--bh-muted))}.arena-deck-card--blind{position:relative;overflow:hidden}.arena-deck-blind-tag{display:inline-block;margin-bottom:8px;padding:3px 10px;border-radius:999px;font-family:var(--bh-font-mono);font-size:.625rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;background:var(--bh-ink);color:var(--bh-surface)}.arena-blind-run{padding:var(--bh-space-4);border-radius:var(--bh-radius-lg,16px);background:linear-gradient(165deg,#12141a,#1a1d26 48%,#0f1117);color:#f4f1ea;box-shadow:0 24px 48px rgba(0,0,0,.28)}.arena-blind-head{margin-bottom:var(--bh-space-4)}.arena-blind-head-row{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--bh-space-3);margin-bottom:var(--bh-space-3)}.arena-host-voice-toggle{flex-shrink:0;border:1px solid rgba(255,255,255,.22);border-radius:999px;background:transparent;color:rgba(244,241,234,.75);padding:6px 12px;font-family:var(--bh-font-mono);font-size:.625rem;letter-spacing:.06em;text-transform:uppercase;cursor:pointer}.arena-host-voice-toggle.is-on{border-color:#f5c842;color:#f5c842}.arena-blind-skeleton{display:grid;grid-gap:var(--bh-space-3);gap:var(--bh-space-3);margin-bottom:var(--bh-space-4)}.arena-blind-skeleton-card{min-height:96px;border-radius:var(--bh-radius-lg,14px);background:linear-gradient(90deg,rgba(255,255,255,.06),rgba(255,255,255,.12) 50%,rgba(255,255,255,.06));background-size:200% 100%;animation:arena-skeleton-shimmer 1.2s ease infinite}@keyframes arena-skeleton-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}.arena-blind-flash-wrap{margin-top:var(--bh-space-4)}.arena-round-timeline,.arena-round-timeline-item{margin-bottom:var(--bh-space-4)}.arena-round-timeline-item{padding-bottom:var(--bh-space-3);border-bottom:1px solid var(--bh-border,#d8d4cc)}.arena-round-timeline-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px;margin-bottom:8px}.arena-round-timeline-verdict{margin-left:auto;font-family:var(--bh-font-mono);font-size:.6875rem;letter-spacing:.08em;text-transform:uppercase}.arena-round-timeline-verdict.is-match{color:#16a34a}.arena-round-timeline-verdict.is-twist{color:#ff6b4a}.arena-blind-category{display:block;margin-bottom:var(--bh-space-3);font-family:var(--bh-font-display);font-size:1.125rem;font-weight:600;letter-spacing:-.01em}.arena-blind-progress-label{display:block;margin-bottom:6px;font-family:var(--bh-font-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:rgba(244,241,234,.55)}.arena-blind-progress-track{height:6px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden}.arena-blind-progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,#f5c842,#ff6b4a);transition:width .35s ease}.arena-blind-wait,.arena-tier-countdown{text-align:center;font-family:var(--bh-font-mono);font-size:.875rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(244,241,234,.6);animation:arena-pulse 1.2s ease infinite}@keyframes arena-pulse{0%,to{opacity:.55}50%{opacity:1}}.arena-host-guess{margin-bottom:var(--bh-space-4);padding:var(--bh-space-3) var(--bh-space-4);border:1px solid rgba(245,200,66,.35);border-radius:var(--bh-radius-lg,12px);background:rgba(245,200,66,.08)}.arena-host-guess-label{display:block;font-family:var(--bh-font-mono);font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;color:#f5c842}.arena-host-guess-text{margin:6px 0 10px;font-size:.9375rem;font-weight:600;line-height:1.35}.arena-host-guess-meter{height:4px;border-radius:999px;background:rgba(255,255,255,.15);overflow:hidden}.arena-host-guess-fill{height:100%;background:#f5c842;border-radius:999px}.arena-host-guess-note{margin:8px 0 0;font-size:.75rem;color:rgba(244,241,234,.55)}.arena-blind-prompt{margin:0 0 var(--bh-space-3);text-align:center;font-family:var(--bh-font-display);font-size:clamp(1.5rem,6vw,2rem);font-weight:800;letter-spacing:-.02em;text-transform:uppercase;animation:arena-pair-in .25s ease}.arena-blind-pair{display:grid;grid-gap:var(--bh-space-3);gap:var(--bh-space-3);animation:arena-pair-in .28s ease}.arena-blind-or{text-align:center;font-family:var(--bh-font-mono);font-size:.8125rem;letter-spacing:.2em;text-transform:uppercase;color:rgba(244,241,234,.45)}.arena-blind-card{position:relative;min-height:96px;padding:20px 22px 20px 56px;border:2px solid rgba(255,255,255,.18);border-radius:var(--bh-radius-lg,14px);background:rgba(255,255,255,.06);color:inherit;font:inherit;text-align:left;cursor:pointer;transition:transform .15s ease,border-color .15s ease,background .15s ease}.arena-blind-card:hover:not(:disabled){transform:scale(1.02);border-color:rgba(255,255,255,.35)}.arena-blind-card.is-chosen,.arena-blind-card:active:not(:disabled){transform:scale(.98);border-color:#ff6b4a;background:rgba(255,107,74,.15)}.arena-blind-card.is-guessed:not(.is-chosen){border-color:rgba(245,200,66,.55)}.arena-blind-card:disabled{cursor:default;opacity:.92}.arena-blind-slot{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:32px;height:32px;display:grid;place-items:center;border-radius:8px;font-family:var(--bh-font-mono);font-weight:800;font-size:.875rem;background:rgba(255,255,255,.12)}.arena-blind-card-text{display:block;font-size:1.0625rem;font-weight:600;line-height:1.4}.arena-blind-flash{margin-top:var(--bh-space-4);text-align:center;font-family:var(--bh-font-display);font-size:1.75rem;font-weight:800;letter-spacing:-.02em;animation:arena-flash-in .35s ease}.arena-blind-flash.is-match{color:#7ee787}.arena-blind-flash.is-twist{color:#ff6b4a}@keyframes arena-flash-in{0%{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}.arena-blind-reveal{padding:var(--bh-space-2) 0}.arena-blind-reveal-lead{margin:0 0 var(--bh-space-4);font-size:.9375rem;color:var(--bh-muted)}.arena-tier-crown,.arena-tier-reveal{margin-bottom:var(--bh-space-5)}.arena-tier-crown{padding:var(--bh-space-5);border-radius:var(--bh-radius-lg,16px);text-align:center;background:linear-gradient(145deg,#f5c842,#ff9f43 55%,#ff6b4a);color:#1a1208;box-shadow:0 16px 40px rgba(245,200,66,.35)}.arena-tier-crown.is-dropping{animation:arena-crown-drop .55s cubic-bezier(.34,1.4,.64,1)}@keyframes arena-crown-drop{0%{opacity:0;transform:translateY(-24px) scale(.92)}to{opacity:1;transform:translateY(0) scale(1)}}.arena-tier-crown-label{display:block;font-family:var(--bh-font-display);font-size:clamp(2.5rem,12vw,4rem);font-weight:900;line-height:1;letter-spacing:-.04em}.arena-tier-crown-text{margin:var(--bh-space-3) 0 0;font-size:clamp(1.125rem,4.5vw,1.375rem);font-weight:700;line-height:1.35}.arena-tier-you-picked{display:inline-block;margin-top:10px;padding:4px 12px;border-radius:999px;font-family:var(--bh-font-mono);font-size:.625rem;letter-spacing:.1em;text-transform:uppercase;background:rgba(26,18,8,.2)}.arena-tier-board{display:flex;flex-direction:column;gap:var(--bh-space-3)}.arena-tier-row{border-radius:var(--bh-radius-lg,12px);overflow:hidden;animation:arena-tier-row-in .4s ease both}@keyframes arena-tier-row-in{0%{opacity:0;transform:translateX(-12px)}to{opacity:1;transform:translateX(0)}}.arena-tier-row-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 12px;padding:10px 14px}.arena-tier-badge{font-family:var(--bh-font-display);font-size:1.25rem;font-weight:800;letter-spacing:-.02em}.arena-tier-tagline{font-size:.8125rem;opacity:.85}.arena-tier-row--s{background:linear-gradient(90deg,rgba(245,200,66,.22),rgba(245,200,66,.08));border:2px solid rgba(245,200,66,.45)}.arena-tier-row--s .arena-tier-badge{color:#b8860b}.arena-tier-row--a{background:rgba(168,85,247,.12);border:2px solid rgba(168,85,247,.35)}.arena-tier-row--a .arena-tier-badge{color:#9333ea}.arena-tier-row--b{background:rgba(59,130,246,.1);border:2px solid rgba(59,130,246,.3)}.arena-tier-row--b .arena-tier-badge{color:#2563eb}.arena-tier-row--c{background:rgba(34,197,94,.1);border:2px solid rgba(34,197,94,.28)}.arena-tier-row--c .arena-tier-badge{color:#16a34a}.arena-tier-row--d{background:rgba(120,113,108,.12);border:2px solid rgba(120,113,108,.35)}.arena-tier-row--d .arena-tier-badge{color:#57534e}.arena-tier-items{list-style:none;margin:0;padding:0 14px 12px;display:flex;flex-direction:column;gap:6px}.arena-tier-item{display:flex;align-items:flex-start;gap:8px;padding:8px 10px;border-radius:8px;background:rgba(255,255,255,.55);font-size:.875rem;line-height:1.4;animation:arena-tier-item-in .35s ease both}@keyframes arena-tier-item-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.arena-tier-rank{flex-shrink:0;font-family:var(--bh-font-mono);font-size:.6875rem;font-weight:700;color:var(--bh-muted)}.arena-tier-item-text{flex:1 1}.arena-tier-item.is-picked{outline:2px solid var(--bh-hen-blue,#3b82f6);outline-offset:-2px}.arena-tier-picked-dot{flex-shrink:0;color:var(--bh-hen-blue,#3b82f6);font-size:.75rem}.arena-tier-done{margin-top:var(--bh-space-4);text-align:center;font-weight:600;color:var(--bh-muted)}.arena-blind-details{margin-bottom:var(--bh-space-4)}.arena-blind-details summary{cursor:pointer;font-weight:600;margin-bottom:var(--bh-space-3)}@media (max-width:480px){.arena-blind-run{margin-left:calc(-1 * var(--bh-space-4));margin-right:calc(-1 * var(--bh-space-4));border-radius:0}.arena-blind-card{min-height:88px;padding-left:52px}.arena-blind-card-text{font-size:1rem}}