/* AI Arena visual system R1 — 2026-09-30. Presentation-only overrides. */
:root{--bg:#090a0c;--bg2:#0d0f12;--panel:#121418;--panel2:#171a1f;--line:#2a2e34;--text:#f2efe6;--muted:#969ba4;--accent:#ff6840;--accent2:#63c7ee;--good:#72d6a2;--warn:#efbf68;--bad:#ff7d88;--shadow:0 18px 50px rgba(0,0,0,.26);--radius:9px}
*{scrollbar-color:#353a42 #0b0d10}
html{color-scheme:dark}
body{background:#090a0c;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:-.006em}
body:before{content:"";position:fixed;inset:0 0 auto;height:3px;background:linear-gradient(90deg,var(--accent) 0 18%,#f2efe6 18% 18.7%,transparent 18.7%);z-index:100;pointer-events:none}
.ambient{opacity:.22;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px);background-size:100% 54px;mask-image:linear-gradient(to bottom,#000,transparent 78%)}
a{transition:color .15s,border-color .15s,background .15s}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent2);outline-offset:3px}
.site-header{height:76px;padding:0 max(24px,calc((100vw - 1240px)/2));border-bottom:1px solid #24272c;background:rgba(9,10,12,.94);backdrop-filter:blur(14px)}
.brand{gap:11px}
.brand-mark{width:34px;height:34px;border:0;border-radius:6px;background:var(--accent);color:#111214;font-size:14px;font-weight:950;box-shadow:none}
.brand b{font-size:14px;letter-spacing:.11em;text-transform:uppercase}
.brand small{color:#747a84;font-size:9px;letter-spacing:1.55px;margin-top:1px}
.site-header nav{gap:3px;font-size:13px;color:#aeb3bc}
.site-header nav a{padding:9px 10px;border-radius:6px}
.site-header nav a:hover{background:#15181c;color:#fff}
.site-header nav .pill{border:1px solid #3a3f47;background:#14171b;padding:9px 12px}
.site-header nav .pill:hover{border-color:#6d737e;background:#1a1e23}
.nav-arena-live{color:#d5f5e2!important}
.nav-live-dot{color:var(--good)!important;filter:none!important}
.shell{width:min(1240px,calc(100% - 48px));padding:52px 0 82px}
.shell.narrow{width:min(860px,calc(100% - 40px))}
.eyebrow{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10px;letter-spacing:2px;color:var(--accent);font-weight:800}
.hero{grid-template-columns:minmax(0,1.22fr) minmax(340px,.78fr);gap:72px;min-height:560px;padding:54px 0 70px;border-bottom:1px solid #22262b}
.hero h1,.battle-head h1,.legal-page h1,.auth-panel h1,.two-col h1,.leaderboard-title h1,.dash-head h1,.admin-head h1{font-family:"Arial Narrow","Helvetica Neue",Arial,sans-serif;font-weight:850;letter-spacing:-.055em}
.hero h1{max-width:780px;font-size:clamp(52px,7.2vw,92px);line-height:.9;margin:17px 0 26px}
.hero h1 span{color:var(--text);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:6px;text-underline-offset:8px}
.hero p{max-width:650px;color:#a7acb5;font-size:17px;line-height:1.67}
.hero-actions{gap:9px;margin-top:30px}
.button{border:1px solid #383d45;background:#15181c;color:#f1eee5;padding:12px 16px;border-radius:6px;font-weight:760;box-shadow:none;transition:transform .12s,border-color .12s,background .12s}
.button:hover{transform:translateY(-1px);border-color:#666d77;background:#1b1f24}
.button.primary{background:var(--accent);color:#121316;border-color:var(--accent);box-shadow:none}
.button.primary:hover{background:#ff7955;border-color:#ff7955}
.button.ghost{background:transparent}
.button.small{padding:9px 12px}
.micro{color:#737983}
.hero-visual-wrap{min-height:440px}
.hero-graphic{opacity:.15;filter:grayscale(1) contrast(1.25);border:0;box-shadow:none;border-radius:0}
.hero-card{width:min(100%,360px);justify-self:end;background:#121418;border:1px solid #32363d;border-left:4px solid var(--accent);border-radius:8px;padding:26px;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.hero-card:after{display:none}
.hero-card-top{color:#7e848e;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.rank-big{font-family:"Arial Narrow","Helvetica Neue",Arial,sans-serif;font-size:88px;line-height:.9;font-weight:900;letter-spacing:-5px;margin:38px 0 12px}
.rank-title{font-size:22px}
.rank-meta{color:#8b919b}
.score-chip{border:1px solid #454a52;background:#0d0f12;color:#c8ccd2;border-radius:4px;padding:7px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.wave-divider{display:none}
.section-head{margin:58px 0 18px;padding-top:18px;border-top:1px solid #24282d;align-items:end}
.section-head h2{font-family:"Arial Narrow","Helvetica Neue",Arial,sans-serif;font-size:31px;font-weight:800;letter-spacing:-.035em}
.section-head>a{color:#c5c8cd;border-bottom:1px solid #50555d;padding-bottom:2px}
.leaderboard,.table-wrap,.ledger{border-color:#292d33;border-radius:8px;background:#101216}
.rank-row{grid-template-columns:58px minmax(0,1fr) auto;padding:17px 18px;border-bottom-color:#24282d;transition:background .12s}
.rank-row:hover{background:#15181c}
.rank-no{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--accent);font-size:13px}
.rank-track span,.rank-stats span{color:#818791}
.rank-stats b{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:16px}
.feature-grid{gap:12px;margin-top:46px}
.feature-grid article{border:1px solid #292d33;border-top:3px solid #343940;border-radius:8px;padding:24px;background:#101216}
.feature-grid article:hover{border-top-color:var(--accent)}
.feature-icon{opacity:.8}
.feature-num{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--accent)}
.feature-grid h3{font-size:19px}
.feature-grid p{color:#8e949d;line-height:1.6}
.panel,.song-card,.track-side,.credit-card,.metric-grid>div,.review-card{background:#111317;border-color:#2b2f35;border-radius:8px;box-shadow:none}
.form-grid input,.form-grid select,.form-grid textarea,.inline-form input,.inline-form select,.review-actions input,.mini-form select{border-color:#32373f;background:#0c0e11;border-radius:6px}
.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus,.inline-form input:focus,.inline-form select:focus{border-color:#626a75;box-shadow:0 0 0 3px rgba(99,199,238,.08)}
.flash,.callout,.legal-box,.submit-summary,.vote-panel,.empty{border-radius:7px}
table th{background:#0d0f12;color:#858b94}
table tr:hover td{background:#14171b}
footer{width:min(1240px,calc(100% - 48px));border-top:1px solid #24282d;padding:26px 0 42px;color:#747a83}
footer a{color:#a5aab2}
.home-event-marquee{margin:0 0 26px;padding:0;border:1px solid #353a42;border-left:4px solid var(--accent);border-radius:8px;box-shadow:none;overflow:hidden}
.home-event-marquee:before,.home-event-marquee:after{display:none}
.home-event-marquee-inner{border-radius:0;padding:24px 26px;background:#111317;box-shadow:none}
.home-event-marquee-kicker{color:var(--accent);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:1.6px}
.home-event-live-dot{background:var(--accent);box-shadow:none}
.home-event-marquee-main{gap:32px}
.home-event-marquee h2{font-family:"Arial Narrow","Helvetica Neue",Arial,sans-serif;font-size:clamp(34px,4.8vw,58px);letter-spacing:-.045em}
.home-event-marquee p{color:#9298a2}
.home-event-marquee-meta>div{border-color:#30343a;border-radius:5px;background:#0c0e11}
.home-event-marquee-meta span{color:#6f7580}
.home-event-marquee-meta b{color:#e7e4dc}
.event-host-ribbon{border-radius:5px;background:#15181c}
.arena-live-hero{border-color:#30353c;border-left:4px solid var(--good);border-radius:8px;background:#111317;box-shadow:none}
.arena-live-hero:before{display:none}
.arena-live-hero h1{font-family:"Arial Narrow","Helvetica Neue",Arial,sans-serif;font-weight:850;letter-spacing:-.05em}
.arena-live-statline span{border-color:#30343a;background:#0d0f12;border-radius:5px}
.arena-live-now,.arena-live-people,.arena-live-pass,.arena-live-queue-card,.arena-live-room-goal{border-color:#2b2f35;border-radius:8px;background:#111317;box-shadow:none}
.arena-live-album-art,.arena-live-art-placeholder{border-radius:7px}
.arena-live-reaction,.arena-live-person{border-radius:6px;background:#0d0f12}
.arena-live-dock{border-color:#3b4149;border-radius:7px;background:rgba(12,14,17,.96);box-shadow:0 16px 40px rgba(0,0,0,.38)}
.seo-detail-hero{gap:32px}
.seo-song-card,.artist-genre-card,.seo-player-card{border-radius:8px}
.tag-cloud>span,.event-host-ribbon,.song-status{border-radius:5px}
.disc{border-radius:50%;box-shadow:inset 0 0 30px #050607,0 15px 30px rgba(0,0,0,.24)}
.track-side{border-top:3px solid #343940}
.track-side:first-child{border-top-color:var(--accent2)}
.track-side:last-child{border-top-color:var(--accent)}
@media(max-width:980px){.site-header nav{gap:1px}.site-header nav a{padding:9px 8px}.hero{gap:34px}.hero-card{justify-self:start}}
@media(max-width:900px){.site-header{padding:0 20px}.site-header nav{top:75px;background:#0b0d10;border-bottom-color:#2a2e34;padding:12px}.site-header nav a{padding:12px;border-radius:4px}.hero{grid-template-columns:1fr;min-height:auto;padding-top:34px}.hero-visual-wrap{min-height:300px;justify-items:start}.hero-card{width:min(420px,100%)}}
@media(max-width:620px){body:before{height:2px}.shell{width:min(100% - 26px,1240px);padding-top:30px}.site-header{height:68px}.site-header nav{top:67px}.hero{padding:24px 0 44px}.hero h1{font-size:clamp(46px,14vw,68px);line-height:.92}.hero h1 span{text-decoration-thickness:4px;text-underline-offset:5px}.hero p{font-size:15px}.hero-visual-wrap{min-height:260px}.hero-graphic{display:none}.hero-card{padding:21px}.rank-big{font-size:64px}.feature-grid{grid-template-columns:1fr}.section-head{margin-top:42px}.rank-row{grid-template-columns:38px 1fr}.home-event-marquee-inner{padding:20px}.home-event-marquee h2{font-size:38px}footer{width:min(100% - 26px,1240px)}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}