:root{--blue:#2f6fe8;--red:#e2382b;--gold:#ffd34d;--cream:#fff6e8;--ink:#0b0d12;font-family:"Nunito","Avenir Next","Segoe UI",system-ui,sans-serif}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:#0b0d12;color:var(--cream);overflow:hidden}
#stage{position:fixed;inset:0}
#stage canvas{display:block;width:100%;height:100%}
#hud{position:fixed;inset:0;pointer-events:none;user-select:none}
.topbar{position:absolute;top:14px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:14px;width:min(920px,calc(100% - 28px))}
.fighter{flex:1;display:flex;flex-direction:column;gap:5px}
.fighter.cpu{align-items:flex-end}
.fighter .name{font-size:13px;font-weight:900;letter-spacing:.18em;padding:3px 10px;border-radius:999px;color:#0b0d12;background:var(--blue)}
.fighter.cpu .name{background:var(--red)}
.bar{position:relative;width:100%;height:18px;border-radius:999px;background:rgba(10,12,18,.6);border:2px solid rgba(255,255,255,.85);overflow:hidden}
.bar i{position:absolute;top:0;bottom:0;left:0;border-radius:999px}
.fighter.cpu .bar i{left:auto;right:0}
.bar .chip{background:#fff;width:100%;transition:width .5s ease .25s}
.bar .fill{background:linear-gradient(90deg,#7fb2ff,var(--blue));width:100%;transition:width .12s ease}
.fighter.cpu .bar .fill{background:linear-gradient(270deg,#ff9b8a,var(--red))}
.clock{display:flex;flex-direction:column;align-items:center;min-width:110px;padding:6px 14px;border-radius:14px;background:rgba(10,12,18,.72);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(8px)}
.clock .round{font-size:11px;font-weight:900;letter-spacing:.2em;opacity:.8}
.clock .time{font-size:30px;font-weight:900;font-variant-numeric:tabular-nums;line-height:1}
.clock .time.low{color:#ff5c5c}
.score{position:absolute;top:84px;right:22px;display:flex;flex-direction:column;align-items:flex-end;gap:0}
.score span{font-size:10px;font-weight:900;letter-spacing:.22em;opacity:.7}
.score b{font-size:30px;font-weight:900;font-variant-numeric:tabular-nums;line-height:1;text-shadow:0 2px 0 rgba(0,0,0,.4)}
.combo{position:absolute;top:84px;left:22px;display:flex;align-items:baseline;gap:6px;opacity:0;transform:scale(.7);transition:all .18s cubic-bezier(.2,1.6,.4,1)}
.combo.show{opacity:1;transform:scale(1)}
.combo b{font-size:44px;font-weight:900;font-style:italic;color:var(--gold);text-shadow:0 3px 0 rgba(0,0,0,.4)}
.combo span{font-size:12px;font-weight:900;letter-spacing:.2em}
.callout{position:absolute;top:30%;left:50%;transform:translateX(-50%) scale(.6);text-align:center;opacity:0;transition:transform .16s cubic-bezier(.2,1.6,.4,1),opacity .16s;white-space:nowrap}
.callout.show{opacity:1;transform:translateX(-50%) scale(1)}
.callout b{display:block;font-size:58px;font-weight:900;font-style:italic;letter-spacing:.02em;color:#fff;text-shadow:0 4px 0 rgba(0,0,0,.35),0 0 30px rgba(255,255,255,.25)}
.callout span{display:block;font-size:16px;font-weight:800;margin-top:2px;text-shadow:0 2px 6px rgba(0,0,0,.6)}
.callout.gold b{color:var(--gold);text-shadow:0 4px 0 rgba(0,0,0,.35),0 0 40px rgba(255,211,77,.7)}
.callout.pink b{color:#ff5ca8;text-shadow:0 4px 0 rgba(0,0,0,.35),0 0 40px rgba(255,92,168,.6)}
.callout.teal b{color:#36e0d8;text-shadow:0 4px 0 rgba(0,0,0,.35),0 0 40px rgba(54,224,216,.6)}
.callout.red b{color:#ff5c5c}
.callout.dim b{font-size:34px;color:#cfd8ff;opacity:.9}
.banner{position:absolute;top:40%;left:0;right:0;text-align:center;opacity:0;transform:scale(.8);transition:transform .22s cubic-bezier(.2,1.6,.4,1),opacity .2s;pointer-events:none}
.banner.show{opacity:1;transform:scale(1)}
.banner b{display:block;font-size:92px;font-weight:900;font-style:italic;letter-spacing:.02em;color:var(--gold);text-shadow:0 6px 0 rgba(0,0,0,.45),0 0 60px rgba(255,211,77,.6)}
.banner span{display:block;font-size:18px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;text-shadow:0 2px 6px rgba(0,0,0,.6)}
.count{position:absolute;top:50%;left:50%;transform:translateX(-50%);font-size:160px;font-weight:900;font-style:italic;color:#fff;text-shadow:0 8px 0 rgba(0,0,0,.45);opacity:0}
.count.show{animation:countpop .7s ease-out forwards}
@keyframes countpop{0%{opacity:0;transform:translateX(-50%) scale(1.8)}18%{opacity:1;transform:translateX(-50%) scale(1)}100%{opacity:.7;transform:translateX(-50%) scale(.95)}}
.flash{position:absolute;inset:0;opacity:0;pointer-events:none;mix-blend-mode:screen}
.flash.go{animation:flash .5s ease-out}
.flash.hit{background:radial-gradient(ellipse at center,rgba(255,60,60,0) 40%,rgba(255,40,40,.75) 100%)}
.flash.big{background:radial-gradient(ellipse at center,rgba(255,255,255,.55) 0%,rgba(255,244,214,.25) 35%,rgba(255,255,255,0) 70%)}
.speedlines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:0}
.speedlines.go{animation:speedfade .38s ease-out}
@keyframes speedfade{0%{opacity:.95}100%{opacity:0}}
.flash.gold{background:radial-gradient(ellipse at center,rgba(255,211,77,0) 45%,rgba(255,211,77,.5) 100%)}
@keyframes flash{0%{opacity:0}12%{opacity:1}100%{opacity:0}}
.status{position:absolute;bottom:8px;left:50%;transform:translateX(-50%);font-size:11px;font-weight:800;letter-spacing:.14em;opacity:.55;text-transform:uppercase}
.keys{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;flex-wrap:wrap;justify-content:center;gap:5px;max-width:720px}
.keys span{font-size:11px;font-weight:700;padding:5px 9px;border-radius:999px;background:rgba(10,12,18,.65);border:1px solid rgba(255,255,255,.08);opacity:.85}
kbd{display:inline-block;font:inherit;font-weight:900;font-size:10px;padding:1px 6px;margin-right:4px;border-radius:5px;background:#f5f0e6;color:#0b0d12}
body.cam .keys,body.counting .keys{display:none}
.studio{position:absolute;left:22px;bottom:70px;pointer-events:auto;padding:12px;border-radius:12px;background:rgba(10,12,18,.72);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(8px);max-width:620px}
.studio-title{font-size:12px;font-weight:900;letter-spacing:.14em;margin-bottom:8px}
.studio-title span{color:var(--gold);margin-left:6px}.studio-title em{font-style:normal;opacity:.6;margin-left:10px;font-weight:700}
.studio-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.studio button{font:inherit;font-size:12px;font-weight:800;padding:6px 10px;border-radius:8px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.08);color:var(--cream);cursor:pointer}
.studio button:hover{background:rgba(255,255,255,.18)}.studio button.on{background:var(--gold);color:#0b0d12;border-color:var(--gold)}
.studio-row.small button{font-size:11px;padding:4px 8px}
.start{position:fixed;inset:0;z-index:5;display:flex;align-items:center;justify-content:center;background:rgba(5,6,9,.62);backdrop-filter:blur(6px)}
.start[hidden]{display:none}
.start-card{max-width:560px;width:calc(100% - 32px);padding:28px 30px;border-radius:18px;background:rgba(14,16,22,.94);border:1px solid rgba(255,255,255,.12);text-align:center}
.start-card .eyebrow{font-size:11px;letter-spacing:.24em;opacity:.7;font-weight:900}
.start-card h1{margin:8px 0 6px;font-size:46px;font-weight:900;font-style:italic;color:var(--gold);text-shadow:0 4px 0 rgba(0,0,0,.4)}
.start-card p{font-size:15px;line-height:1.45;opacity:.92}
.start-card .small{font-size:12px;opacity:.6}
.start-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:10px 0 6px}
.start-card button{font:inherit;font-size:16px;font-weight:900;padding:12px 22px;border-radius:999px;border:0;background:var(--red);color:#fff;cursor:pointer}
.start-card button.alt{background:rgba(255,255,255,.1);color:var(--cream);border:1px solid rgba(255,255,255,.2)}
.res-score{display:flex;flex-direction:column;align-items:center;margin:6px 0 12px}
.res-score span{font-size:11px;letter-spacing:.24em;font-weight:900;opacity:.7}.res-score b{font-size:54px;font-weight:900;font-variant-numeric:tabular-nums;line-height:1}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.res-grid div{padding:8px;border-radius:10px;background:rgba(255,255,255,.06)}
.res-grid div b{display:block;font-size:22px;font-weight:900}.res-grid div span{font-size:10px;letter-spacing:.16em;font-weight:900;opacity:.6}
.campanel{position:fixed;right:18px;bottom:18px;width:324px;z-index:4;border-radius:12px;overflow:hidden;background:rgba(10,12,18,.8);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(8px)}
.campanel[hidden]{display:none}
.campanel canvas{display:block;width:324px;height:182px;background:#000}
.camstatus{padding:8px 10px;display:flex;flex-direction:column;gap:2px}
.camstatus b{font-size:12px;letter-spacing:.14em}.camstatus b.ready{color:var(--gold)}.camstatus b.bad{color:#ff5ca8}
.camstatus span{font-size:11px;opacity:.7}
.camrow{display:flex;gap:6px;padding:0 10px 10px}
.camrow button{font:inherit;font-size:11px;font-weight:800;padding:5px 9px;border-radius:8px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.08);color:var(--cream);cursor:pointer}
.campanel pre{margin:0;padding:6px 10px 9px;font:10px/1.45 ui-monospace,Menlo,monospace;white-space:pre-wrap;color:var(--cream);opacity:.92;max-height:200px;overflow:auto}
.campanel.mini{width:auto}.campanel.mini canvas,.campanel.mini .camstatus span,.campanel.mini pre{display:none}
@media (max-width:640px){.callout b{font-size:40px}.banner b{font-size:56px}.clock .time{font-size:22px}.score b{font-size:22px}.combo b{font-size:30px}.keys{display:none}.campanel{width:200px}.campanel canvas{width:200px;height:112px}}

#fade{position:fixed;inset:0;background:#000;opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:50}
#fade.on{opacity:1}

/* ---- CV debug panel (` / camera panel "debug" / ?debug=1) */
#cvdbg{position:fixed;left:14px;top:84px;width:488px;max-height:calc(100vh - 100px);overflow:auto;z-index:6;padding:10px 12px 12px;border-radius:12px;background:rgba(8,10,16,.88);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(10px);color:var(--cream);font:11px/1.45 ui-monospace,Menlo,monospace}
#cvdbg[hidden]{display:none}
#cvdbg b.L{color:#7fb0ff}#cvdbg b.R{color:#ff8a8a}
#cvdbg .ok{color:#49e08a}#cvdbg .bad{color:#ff6b85}#cvdbg .warn{color:#ffc94d}.cvd-dim{opacity:.6}
.cvd-head{display:flex;align-items:center;gap:6px;margin-bottom:8px}
.cvd-head b{letter-spacing:.14em;font-size:12px}.cvd-head span{flex:1;opacity:.75}
#cvdbg button{font:inherit;font-weight:800;font-size:10.5px;padding:4px 8px;border-radius:7px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);color:var(--cream);cursor:pointer}
#cvdbg button.rec{color:#ff6b6b}#cvdbg button.rec.on{background:#d32f2f;color:#fff;border-color:#ff8a8a}
#cvdGraph{display:block;width:100%;height:auto;border-radius:8px;margin-bottom:8px}
.cvd-hands{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:6px}
.cvd-hands .bar{position:relative;height:8px;border-radius:4px;background:rgba(255,255,255,.1);margin:4px 0}
.cvd-hands .bar i{position:absolute;inset:0 auto 0 0;border-radius:4px;background:linear-gradient(90deg,#4d8dff,#9ad0ff)}
#cvdR .bar i{background:linear-gradient(90deg,#ff5a5a,#ffb0b0)}
.cvd-hands .bar u,.cvd-hands .bar s{position:absolute;top:-2px;bottom:-2px;width:2px;background:#fff}.cvd-hands .bar s{opacity:.35}
.cvd-hands em{font-style:normal;font-weight:800}
.cvd-track,.cvd-count{padding:6px 0;border-top:1px solid rgba(255,255,255,.08)}
.cvd-log{border-top:1px solid rgba(255,255,255,.08);padding-top:6px;display:flex;flex-direction:column;gap:2px}
.cvd-log div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.cvd-log span{opacity:.55}.cvd-log i{font-style:normal;opacity:.75}
.cvd-log .ok b{color:#49e08a}.cvd-log .queued b{color:#ffc94d}.cvd-log .bad b{color:#ff6b85}.cvd-log .note{opacity:.75;font-style:italic}
.cvd-tune{border-top:1px solid rgba(255,255,255,.08);margin-top:6px;padding-top:6px;display:grid;gap:3px}
.cvd-tune label{display:grid;grid-template-columns:170px 1fr 42px;align-items:center;gap:6px}.cvd-tune input{width:100%}.cvd-tune em{font-style:normal;text-align:right}
.cvd-row{display:flex;gap:8px;align-items:center;margin-top:4px}
@media (max-width:640px){#cvdbg{left:8px;right:8px;width:auto;top:70px}}

/* start screen: mode + difficulty */
.start-opts{display:flex;flex-direction:column;align-items:center;gap:10px;margin:14px 0 4px}
.seg{display:inline-flex;background:rgba(255,255,255,.08);border-radius:999px;padding:4px;gap:4px;flex-wrap:wrap;justify-content:center}
.seg button{background:transparent;color:#cfd6ea;border:0;border-radius:999px;padding:8px 16px;font:700 14px/1 inherit;cursor:pointer;box-shadow:none;min-width:0}
.seg button.on{background:#ffd34d;color:#1a1424}
.seg[hidden]{display:none}
.mode-note{margin:2px 0 0;min-height:1.2em}
/* two-player split screen */
#split{position:fixed;inset:0;pointer-events:none;display:none;z-index:4}
body.versus #split{display:block}
#split i{position:absolute;top:0;bottom:0;left:50%;width:4px;margin-left:-2px;background:linear-gradient(#ffd34d,#ff5d8f);box-shadow:0 0 18px rgba(0,0,0,.6)}
#split b{position:absolute;bottom:16px;font:900 16px/1 system-ui,sans-serif;letter-spacing:.12em;padding:6px 12px;border-radius:999px;background:rgba(10,12,20,.7)}
#split .p1{left:16px;color:#7fb2ff}#split .p2{right:16px;color:#ff8a7a}
/* 2 players: the camera panel sits over the divider so it covers neither player's view */
body.versus .campanel{left:50%;right:auto;transform:translateX(-50%);bottom:10px;width:min(300px,30vw)}
body.versus .campanel canvas{width:100%;height:auto}
body.versus .score{display:none}

/* slip / duck callout: small and cool-toned so it reads as movement, not a hit */
.callout.move b{font-size:clamp(22px,3.4vw,38px);color:#8fe3ff;text-shadow:0 2px 0 #0b2a3a,0 0 18px rgba(80,200,255,.45)}