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ease}.check-step-connector-done{background:var(--accent-dark)}.col-bias{width:130px}.bias-lean-text{font-size:13px;font-weight:500;white-space:nowrap}.bias-lean-text-sm{font-size:12px}.bias-pill{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600;letter-spacing:.01em;white-space:nowrap;line-height:1.4}.bias-pill-sm{padding:2px 6px;font-size:10px}.bias-lean-left{color:#3b5cad}.bias-lean-left-light{color:#6880a8}.bias-lean-center{color:var(--text-muted)}.bias-lean-right-light{color:#a86868}.bias-lean-right{color:#ad3b3b}.bias-pill-far-left,.bias-pill-left{background:#eff2f9;color:#3956a5}.bias-pill-center-left{background:#f3f5fa;color:#5a6f9a}.bias-pill-center{background:#f4f4f5;color:#6b6f76}.bias-pill-center-right{background:#faf3f3;color:#9a5a5a}.bias-pill-right,.bias-pill-far-right{background:#f9eff0;color:#a53939}.text-muted{color:var(--text-muted)}.bias-card{width:100%;border:1px solid var(--border-color);border-radius:var(--radius-md);padding:20px 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strong{color:var(--text-primary);font-weight:700}.bias-dimensions{display:flex;flex-direction:column;gap:10px}.bias-dimension-row{display:flex;align-items:center;gap:12px}.bias-dimension-label{width:120px;flex-shrink:0;font-size:12px;color:var(--text-secondary);text-align:right}.bias-dimension-bar{flex:1;height:8px;background:#f0f0f0;border-radius:4px;position:relative;overflow:visible}.bias-dimension-bar-center{position:absolute;left:50%;top:0;bottom:0;width:1px;background:#d4d4d4}.bias-dimension-bar-fill{position:absolute;top:1px;height:6px;border-radius:3px}.bias-fill-left{background:#3b82f6}.bias-fill-right{background:#ef4444}.bias-dimension-bar-thumb{position:absolute;top:50%;width:10px;height:10px;border-radius:50%;background:var(--bg-primary);border:2px solid #888;transform:translate(-50%,-50%)}.bias-metrics{display:flex;gap:16px}.bias-metric-item{display:flex;flex-direction:column;align-items:center;padding:10px 16px;border-radius:var(--radius-md);background:var(--bg-secondary);flex:1}.bias-metric-value{font-size:20px;font-weight:700;color:var(--text-primary)}.bias-metric-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;margin-top:2px}.bias-framing{display:flex;flex-direction:column;gap:8px}.bias-framing-title{font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em}.bias-framing-pills{display:flex;flex-wrap:wrap;gap:6px}.bias-framing-pill{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:var(--radius-pill);background:var(--bg-secondary);font-size:12px;color:var(--text-primary);cursor:default}.bias-framing-dir{font-size:10px;color:var(--text-muted);font-style:italic}.bias-reasoning{font-size:13px;color:var(--text-secondary);line-height:1.6;padding:12px 14px;background:var(--bg-secondary);border-radius:var(--radius-md)}.mobile-bottom-nav{display:none}@media(max-width:1024px){.arena-sidebar,.filter-sidebar{display:none}.arena-main{padding:24px 24px 60px}.arena-header-inner{padding:0 16px}}@media(max-width:768px){.mobile-bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:100;background:var(--bg-primary);border-top:1px solid var(--border-color);padding:6px 0 env(safe-area-inset-bottom,8px);justify-content:space-around;align-items:center}.mobile-nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 12px;background:none;border:none;font-family:var(--font-sans);cursor:pointer;color:var(--text-muted);transition:color .15s ease;-webkit-tap-highlight-color:transparent}.mobile-nav-item.mobile-nav-active{color:var(--accent-dark)}.mobile-nav-icon{flex-shrink:0}.mobile-nav-label{font-size:11px;font-weight:500;line-height:1}.arena-main,.home-page{padding-bottom:80px}.check-article-panel{min-height:calc(100vh - 160px);max-width:100%;padding:0}.arena-main{padding-left:16px;padding-right:16px}.arena-layout{height:auto;min-height:100vh}.arena-right{min-height:100vh}.coming-soon-content{min-height:calc(100vh - 64px);padding-bottom:80px}.home-center{max-width:360px;padding:0 16px}.home-title{font-size:24px}.home-tagline{font-size:14px}.home-from{bottom:80px}.check-panel-results{max-width:100%}.check-results-header{gap:12px}.check-results-stats-line{font-size:12px}.arena-header-inner{padding:0 12px}.arena-tabs{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.arena-tabs::-webkit-scrollbar{display:none}}@media(max-width:640px){.arena-tabs{gap:0}.arena-tab{padding:6px 10px;font-size:13px;white-space:nowrap}.arena-cta-btn,.col-spread,.col-bias,.col-articles{display:none}.leaderboard-row td{padding:14px 10px}.leaderboard-table thead th{padding:8px 10px}.check-article-input-group{flex-direction:column}.check-article-input,.check-article-submit-btn{width:100%;height:48px;font-size:16px}.check-article-panel h1{font-size:22px}.check-results-score{width:40px;height:40px;font-size:15px}.check-results-meta h2{font-size:16px}.bias-card{padding:16px}}.coming-soon-content{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:40px 24px;text-align:center;color:var(--text-primary)}.coming-soon-icon{color:var(--text-muted);margin-bottom:24px}.coming-soon-title{font-size:28px;font-weight:700;margin:0 0 8px}.coming-soon-subtitle{font-size:16px;color:var(--text-muted);margin:0 0 32px}.coming-soon-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 24px;border:1.5px solid #d0d0d0;border-radius:var(--radius-btn);background:#fff;font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--text-primary);cursor:pointer;transition:all .15s ease}.coming-soon-btn:hover{border-color:var(--accent-dark);color:var(--accent-dark)}.home-page{display:flex;align-items:center;justify-content:center;flex:1;padding:40px 24px;position:relative}.home-center{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:480px}.home-logo{height:48px;width:auto;margin-bottom:16px}.home-title{font-size:28px;font-weight:700;color:var(--text-primary);letter-spacing:-.03em;margin:0 0 12px}.home-tagline{font-size:15px;color:var(--text-secondary);line-height:1.6;margin:0 0 40px}.home-nav-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%}.home-nav-btn{display:flex;flex-direction:column;align-items:center;gap:10px;padding:24px 16px;border:1.5px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-primary);font-family:var(--font-sans);cursor:pointer;transition:all .15s ease}.home-nav-btn:hover{border-color:var(--accent-dark);background:var(--bg-hover)}.home-nav-icon{color:var(--text-muted);transition:color .15s ease}.home-nav-btn:hover .home-nav-icon{color:var(--accent-dark)}.home-nav-label{font-size:14px;font-weight:600;color:var(--text-primary)}.home-from{position:absolute;bottom:48px;display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;transition:opacity .15s ease}.home-from:hover{opacity:.7}.home-from-label{font-size:12px;color:var(--text-subtle)}.home-from-brand{display:flex;align-items:center;gap:6px}.home-from-logo{height:16px;width:auto}.home-from-name{font-size:14px;font-weight:600;color:var(--text-primary)}@media(max-width:480px){.home-nav-grid{grid-template-columns:1fr}.home-center{max-width:100%}.home-nav-btn{padding:20px 16px}}.battle-topbar{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--border-color);background:var(--bg-primary);flex-shrink:0}.battle-topbar-left{display:flex;align-items:center;gap:6px}.battle-topbar-icon{color:var(--text-muted);flex-shrink:0}.battle-mode-select{position:relative}.battle-mode-btn{display:flex;align-items:center;gap:6px;padding:0;background:none;border:none;font-family:var(--font-sans);font-size:15px;font-weight:500;color:var(--text-primary);cursor:pointer;white-space:nowrap}.battle-mode-btn:hover{color:var(--text-secondary)}.battle-mode-chevron{color:var(--text-muted);transition:transform .2s ease}.battle-mode-chevron-open{transform:rotate(180deg)}.battle-mode-dropdown{position:absolute;top:calc(100% + 8px);left:0;min-width:200px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:0 4px 16px #0000001a;z-index:50;overflow:hidden}.battle-mode-option{display:block;width:100%;padding:10px 16px;border:none;background:none;font-family:var(--font-sans);font-size:14px;color:var(--text-secondary);cursor:pointer;text-align:left;transition:all .1s ease}.battle-mode-option:hover{background:var(--bg-hover);color:var(--text-primary)}.battle-mode-option-active{color:var(--text-primary);font-weight:600;background:var(--bg-secondary)}.battle-topbar-right{display:flex;align-items:center;gap:16px}.battle-score-counter{display:flex;align-items:center;gap:4px;font-size:13px;color:var(--text-muted)}.battle-score-item{display:flex;align-items:center;gap:4px}.battle-score-value{font-weight:700;font-variant-numeric:tabular-nums;color:var(--text-primary)}.battle-score-correct{color:#16a34a}.battle-score-divider{color:var(--text-muted);font-weight:400}.battle-score-wrong{color:#dc2626}.battle-question-bar{text-align:center;padding:20px 24px 16px;flex-shrink:0}.battle-question{font-size:15px;font-weight:600;color:var(--text-primary);line-height:1.5}.battle-panels{display:grid;grid-template-columns:1fr 1fr;gap:16px;min-height:0;flex:1;padding:0 24px;overflow:hidden}.battle-panel{display:flex;flex-direction:column;border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:border-color .4s ease;background:var(--bg-primary);min-height:0}.battle-panel-correct{border-color:#16a34a}.battle-panel-incorrect,.battle-panel-neutral{border-color:var(--border-color)}.battle-panel-label-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-bottom:1px solid var(--border-light)}.battle-panel-label{font-family:var(--font-mono);font-size:13px;font-weight:400;color:var(--text-primary);letter-spacing:0}.battle-panel-actions{display:flex;align-items:center;gap:2px}.battle-media-category{font-size:11px;font-weight:500;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;padding:2px 8px;background:var(--bg-secondary);border-radius:var(--radius-pill)}.battle-panel-source{display:flex;align-items:center;gap:8px}.battle-panel-source-name{font-size:13px;font-weight:600;color:var(--text-primary)}.battle-panel-source-domain{font-size:12px;color:var(--text-muted)}.battle-media-container{flex:1;min-height:0;overflow:hidden;background:#f3f4f6;position:relative}.battle-media-img,.battle-media-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}.battle-media-loading{opacity:0}.battle-media-loaded{opacity:1;transition:opacity .4s ease}.battle-media-skeleton{position:absolute;inset:0;background:linear-gradient(90deg,#e5e7eb 25%,#f3f4f6,#e5e7eb 75%);background-size:200% 100%;animation:battle-skeleton-shimmer 1.5s ease-in-out infinite}@keyframes battle-skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.battle-media-overlay{position:absolute;bottom:0;left:0;right:0;padding:28px 16px 10px;background:linear-gradient(transparent,#0000008c);display:flex;align-items:center;gap:6px;pointer-events:none}.battle-overlay-label{font-size:11px;font-weight:600;color:#fff;text-transform:uppercase;letter-spacing:.06em}.battle-overlay-divider{font-size:11px;color:#ffffff73}.battle-overlay-score{font-size:13px;font-weight:700;color:#ffffffe6}.battle-reveal{padding:12px 16px;border-top:1px solid var(--border-light);display:flex;flex-direction:column;gap:8px}.battle-reveal-crowd-text{font-size:12px;color:var(--text-muted)}.battle-reveal-summary{font-size:13px;color:var(--text-secondary);line-height:1.6}.battle-reveal-signals{display:flex;flex-wrap:wrap;gap:6px}.battle-reveal-signal{display:inline-block;padding:3px 10px;border-radius:var(--radius-pill);font-size:11px;font-weight:400;color:var(--text-muted);background:var(--bg-secondary)}.battle-crowd-stat{font-size:12px;color:var(--text-muted);font-style:italic}.battle-vote-bar{display:flex;align-items:center;justify-content:center;gap:10px;padding:18px 24px;flex-shrink:0}.battle-vote-btn{display:inline-flex;align-items:center;gap:7px;padding:11px 24px;border:1px solid #d0d7e0;border-radius:var(--radius-btn);background:#edf1f5;font-family:var(--font-sans);font-size:14px;font-weight:500;color:var(--text-primary);cursor:pointer;transition:all .15s ease;white-space:nowrap}.battle-vote-btn:hover{background:#e2e8ef;border-color:#bcc5d0}.battle-vote-btn:active{transform:scale(.97)}.battle-vote-icon{font-size:14px;color:var(--text-muted);flex-shrink:0}.battle-next-bar{display:flex;flex-direction:column;align-items:center;gap:10px;padding:24px 24px 40px}.battle-result-text{font-size:15px;font-weight:600;color:var(--text-primary)}.battle-result-correct{color:#16a34a}.battle-result-incorrect{color:#e53e3e}.battle-result-explanation{font-size:13px;color:var(--text-secondary);text-align:center;max-width:600px;line-height:1.5}.battle-next-btn{padding:10px 28px;background:var(--accent-dark);color:#fff;border:none;border-radius:var(--radius-btn);font-family:var(--font-sans);font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s ease}.battle-next-btn:hover{opacity:.85}.battle-progress{display:flex;align-items:center;gap:6px;padding:8px 0 0}.battle-progress-dot{width:8px;height:8px;border-radius:50%;background:var(--border-color);transition:all .3s ease}.battle-progress-dot-current{background:var(--accent-dark);width:20px;border-radius:4px}.battle-progress-dot-done{background:var(--text-muted)}.battle-content{display:flex;flex-direction:column;height:100vh;overflow:hidden}.battle-body{display:grid;grid-template-columns:1fr 2fr;flex:1;min-height:0;overflow:hidden}.battle-body-left-controls{display:flex;flex-direction:column;justify-content:center;align-items:flex-end;padding:32px 48px 32px 40px;gap:24px}.battle-body-left-controls .battle-question{font-size:17px;font-weight:500;text-align:center}.battle-body-left-controls .battle-solo-vote-bar,.battle-body-left-controls .battle-vote-bar,.battle-body-left-controls .battle-next-bar{padding:0}.battle-body-left-controls .battle-vote-bar{flex-wrap:wrap}.battle-body-right{min-height:0;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:40px}.battle-solo-container{display:flex;justify-content:center;padding:0 24px;flex:1;min-height:0}.battle-solo-panel{display:flex;flex-direction:column;border:2px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:border-color .4s ease;background:var(--bg-primary);width:100%;max-width:900px;min-height:0}.battle-solo-panel.battle-panel-correct{border-color:#16a34a}.battle-solo-panel.battle-panel-incorrect{border-color:#e53e3e}.battle-solo-media-container{flex:1;min-height:0;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#f3f4f6;position:relative;aspect-ratio:4 / 3}.battle-solo-badge{position:absolute;top:12px;left:12px;z-index:5;padding:4px 12px;border-radius:var(--radius-pill);background:#0000008c;color:#fff;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.04em;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.battle-solo-vote-bar{display:flex;align-items:center;justify-content:center;gap:12px;padding:24px 24px 40px;flex-shrink:0}.battle-solo-vote-btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 24px;border:1px solid #d0d7e0;border-radius:var(--radius-btn);background:#edf1f5;font-family:var(--font-sans);font-size:14px;font-weight:500;color:var(--text-primary);cursor:pointer;transition:all .15s ease;white-space:nowrap}.battle-solo-vote-btn:hover{background:#e2e8ef;border-color:#bcc5d0}.battle-solo-vote-btn:active{transform:scale(.97)}.battle-solo-vote-btn .battle-vote-icon{width:16px;height:16px;color:var(--text-muted)}.battle-solo-reveal{padding:16px 20px;border-top:1px solid var(--border-light);display:flex;flex-direction:column;gap:6px}.battle-solo-reveal-source{font-size:14px;font-weight:600;color:var(--text-primary)}.battle-solo-reveal-crowd{font-size:13px;color:var(--text-muted)}.battle-solo-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:64px 24px;color:var(--text-muted);font-size:14px}.battle-solo-spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--accent-dark);border-radius:50%;animation:battle-spin .8s linear infinite}@keyframes battle-spin{to{transform:rotate(360deg)}}@media(max-width:1024px){.battle-body{grid-template-columns:1fr}.battle-body-left-controls{padding:20px 16px}.battle-body-right{padding:16px}.battle-panels{grid-template-columns:1fr;padding:0 16px}.battle-media-container{max-height:350px}.battle-solo-media-container{max-height:420px}.battle-content{height:100vh;height:100dvh;overflow:hidden;padding-bottom:64px;display:flex;flex-direction:column}.battle-solo-container{padding:0 16px;flex:1;min-height:0;display:flex;justify-content:center;align-items:flex-end}.battle-solo-panel{max-height:100%}.battle-vote-bar{flex-wrap:wrap;padding:16px}.battle-solo-vote-bar,.battle-question-bar{flex-shrink:0}}@media(max-width:640px){.battle-vote-btn,.battle-solo-vote-btn{padding:8px 14px;font-size:13px}.battle-topbar{padding:10px 16px}.battle-question-bar{padding:12px 16px 8px}.battle-solo-vote-bar{gap:10px;padding:12px 16px 16px}}