:root{--bg:#070b14;--panel:#101726;--panel2:#151f31;--line:#29364c;--text:#f4f7fb;--muted:#8fa0b8;--green:#36d98b;--red:#ff5964;--blue:#5d8cff}
*{box-sizing:border-box}
body{margin:0;background:radial-gradient(circle at top,#18233a 0,#070b14 46%);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;min-height:100vh;position:relative;overflow-x:hidden}
button,input,select{font:inherit}
.arena-backdrop,.arena-fx,.impact-layer{position:fixed;inset:0;pointer-events:none}
.arena-backdrop{z-index:0;background:radial-gradient(circle at top,#18233a 0,#070b14 46%);background-size:cover;background-position:center;opacity:.95}
.arena-backdrop.has-image{opacity:1}
.arena-fx{z-index:1;opacity:.58;overflow:hidden}
.impact-layer{z-index:3;overflow:hidden}
.arena,.admin-shell{position:relative;z-index:2;width:min(1500px,calc(100% - 28px));margin:0 auto;padding:22px 0 40px}
.topbar,.admin-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:18px}
.eyebrow{font-size:12px;letter-spacing:.18em;color:#73e6ff;font-weight:800}
.topbar h1,.admin-top h1{margin:5px 0 0;font-size:clamp(24px,3vw,42px)}
.status{padding:10px 14px;border:1px solid var(--line);border-radius:999px;font-weight:800;font-size:13px;background:rgba(5,9,18,.56);backdrop-filter:blur(6px)}
.status.active{color:var(--green);border-color:#265f4a}
.status.ended{color:#ffce62}
.battle-grid{display:grid;grid-template-columns:minmax(0,1fr) 240px minmax(0,1fr);gap:14px}
.team-panel,.center-panel,.recent,.admin-card{background:rgba(16,23,38,.88);border:1px solid var(--line);border-radius:20px;padding:16px;backdrop-filter:blur(6px)}
.team-shell{position:relative;overflow:hidden;border-radius:16px;background:rgba(8,12,21,.72);border:1px solid rgba(255,255,255,.04)}
.team-skin{position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(5,9,18,.78)),var(--team-bg-image,none);background-size:cover;background-position:center;opacity:.95}
.team-skin::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,color-mix(in srgb, var(--team) 26%, transparent), transparent 60%)}
.team-content{position:relative;padding:14px}
.team-head{display:flex;justify-content:space-between;gap:10px;align-items:end}
.team-name{font-size:clamp(20px,2.4vw,34px);font-weight:900;text-shadow:0 2px 12px rgba(0,0,0,.45)}
.team-dmg{font-size:14px;color:var(--muted);margin-top:3px}
.hptext{font-size:13px;color:#d5def1;text-align:right}
.hpbar{height:13px;background:#060910;border-radius:999px;overflow:hidden;margin:12px 0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.05)}
.hpbar>div{height:100%;transition:width .4s;box-shadow:0 0 16px currentColor}
.gift-title,.board-title,.section-title{font-size:12px;letter-spacing:.12em;color:var(--muted);font-weight:800;margin:16px 0 8px}
.gift-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.gift-card{border:1px solid var(--line);background:rgba(21,31,49,.84);padding:9px;border-radius:12px;display:flex;flex-direction:column;gap:3px;font-size:13px}
.gift-card small,.leader small{color:var(--muted)}
.leaders{display:flex;flex-direction:column;gap:6px}
.leader{display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:8px;align-items:center;padding:8px;border:1px solid var(--line);border-radius:12px;background:rgba(12,18,32,.8)}
.rank{text-align:center;font-size:13px;font-weight:800}
.who{min-width:0}.who b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.who small{display:block;font-size:11px;margin-top:2px}.pts{font-weight:900;font-size:13px}
.center-panel{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;position:relative;overflow:hidden}
.center-panel::before{content:"";position:absolute;inset:auto -20% -10% -20%;height:55%;background:radial-gradient(circle,rgba(255,255,255,.08),transparent 58%)}
.vs{font-size:54px;font-weight:1000;font-style:italic;color:#fff;text-shadow:0 0 18px rgba(255,255,255,.24)}
.event-card{width:100%;min-height:120px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:16px;background:rgba(12,18,32,.85);padding:12px}
.event-label{font-size:11px;color:#73e6ff;font-weight:800;letter-spacing:.14em;margin-bottom:8px}.winner{width:100%;padding:14px;border:1px solid #896c24;background:#2b230d;border-radius:14px;font-weight:900;color:#ffd76f}.winner small{color:#d9c58d}.pulse{animation:pulse .55s ease}@keyframes pulse{0%{transform:scale(.97);border-color:#fff}100%{transform:scale(1)}}
.recent{margin-top:14px}.event-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.event-row{border:1px solid var(--line);border-radius:12px;background:rgba(12,18,32,.8);padding:10px;display:flex;flex-direction:column;gap:3px}.event-row small{color:var(--muted)}
.empty{text-align:center;padding:70px 20px;background:rgba(16,23,38,.9);border:1px solid var(--line);border-radius:22px}.empty-icon{font-size:70px}.hidden{display:none!important}.admin-shell{max-width:1320px}.admin-shell.narrow{max-width:520px;padding-top:80px}.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}.admin-card{margin-bottom:14px}.admin-card h1,.admin-card h2{margin:0 0 12px}.admin-actions,.row-actions,.form-actions{display:flex;gap:8px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;border:1px solid var(--line);border-radius:11px;background:#172237;color:#fff;text-decoration:none;padding:8px 13px;cursor:pointer}.btn.primary{background:#3157db;border-color:#4c70f2}.btn.danger{background:#5c1f29;border-color:#923847}.btn.small{min-height:34px;padding:5px 9px;font-size:12px}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.form-grid.one{grid-template-columns:1fr}.form-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.gift-form{grid-template-columns:repeat(4,minmax(0,1fr));margin-bottom:16px}.form-grid label{font-size:12px;color:var(--muted);font-weight:700}.form-grid input,.form-grid select,.inline-form input{width:100%;min-height:42px;margin-top:5px;border:1px solid var(--line);background:#0a101c;color:#fff;border-radius:10px;padding:8px 10px}.check{display:flex!important;align-items:center;gap:7px;color:#fff!important}.check input{width:auto!important;min-height:auto!important;margin:0!important}.inline-form{display:flex;gap:8px;margin-top:10px}.inline-form input{margin:0}.hint{color:var(--muted);font-size:13px;line-height:1.5}.alert{padding:11px 14px;border-radius:11px;margin-bottom:12px}.alert.success{background:#133b2a;border:1px solid #266246}.alert.error{background:#431c24;border:1px solid #7f3140}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:13px}table{width:100%;border-collapse:collapse;min-width:900px}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;font-size:13px;vertical-align:top}th{background:#0c1220;color:var(--muted)}td form{margin:0}.battle-admin-state{padding:10px;border:1px solid var(--line);border-radius:10px;background:#0c1220}.span-2{grid-column:span 2}.no-player{padding:12px;border:1px dashed var(--line);border-radius:12px;color:var(--muted);text-align:center}
.fx-storm::before,.fx-storm::after,.fx-embers::before,.fx-embers::after,.fx-snow::before,.fx-snow::after,.fx-energy::before,.fx-energy::after{content:"";position:absolute;inset:0}
.fx-storm::before{background:linear-gradient(120deg,transparent 0 47%,rgba(255,255,255,.78) 49%,transparent 52%,transparent 100%);opacity:0;animation:stormflash 5.8s infinite}
.fx-storm::after{background:repeating-linear-gradient(90deg,transparent 0 75px,rgba(115,230,255,.08) 75px 78px,transparent 78px 160px);opacity:.22;animation:drift 18s linear infinite}
@keyframes stormflash{0%,84%,100%{opacity:0}85%,87%{opacity:.75}88%,92%{opacity:0}93%{opacity:.52}95%{opacity:0}}
.fx-embers::before{background:radial-gradient(circle at 10% 90%,rgba(255,120,70,.24),transparent 22%),radial-gradient(circle at 50% 80%,rgba(255,160,60,.18),transparent 16%),radial-gradient(circle at 80% 88%,rgba(255,70,40,.22),transparent 18%);animation:rise 12s linear infinite}
.fx-embers::after{background:repeating-radial-gradient(circle at 20% 90%,rgba(255,180,90,.22) 0 2px,transparent 2px 28px);opacity:.24;animation:drift 18s linear infinite}
.fx-snow::before{background-image:radial-gradient(circle,rgba(255,255,255,.8) 0 1px,transparent 1px);background-size:28px 28px;opacity:.34;animation:snowfall 16s linear infinite}
.fx-snow::after{background-image:radial-gradient(circle,rgba(180,230,255,.72) 0 1px,transparent 1px);background-size:40px 40px;opacity:.26;animation:snowfall 23s linear infinite}
.fx-energy::before{background:radial-gradient(circle at 25% 50%,rgba(93,140,255,.16),transparent 20%),radial-gradient(circle at 70% 35%,rgba(76,201,255,.16),transparent 18%),radial-gradient(circle at 55% 85%,rgba(54,217,139,.16),transparent 24%);animation:floatbg 9s ease-in-out infinite alternate}
.fx-energy::after{background:repeating-linear-gradient(135deg,transparent 0 26px,rgba(255,255,255,.05) 26px 30px,transparent 30px 60px);opacity:.2;animation:drift 12s linear infinite}
@keyframes drift{from{transform:translateX(0)}to{transform:translateX(-160px)}}
@keyframes rise{from{transform:translateY(18px)}to{transform:translateY(-18px)}}
@keyframes snowfall{from{transform:translateY(-20px)}to{transform:translateY(60px)}}
@keyframes floatbg{from{transform:scale(1) translateY(0)}to{transform:scale(1.04) translateY(-10px)}}
.attack-fx{position:absolute;top:50%;width:42%;height:14px;transform:translateY(-50%)}
.attack-fx.from-left{left:10%}.attack-fx.from-right{right:10%}
.attack-fx.mode-lightning::before,.attack-fx.mode-pulse::before{content:"";position:absolute;inset:0}
.attack-fx.mode-lightning::before{background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.85) 20%,rgba(100,220,255,.98) 42%,rgba(255,255,255,.88) 68%,transparent 100%);filter:drop-shadow(0 0 8px rgba(120,220,255,.9));clip-path:polygon(0 44%,10% 40%,16% 56%,27% 36%,35% 52%,48% 32%,58% 58%,68% 39%,79% 55%,90% 35%,100% 50%,90% 62%,78% 46%,68% 66%,56% 42%,45% 60%,34% 38%,22% 58%,10% 42%,0 54%);animation:zap .85s ease-out forwards}
.attack-fx.mode-pulse::before{background:linear-gradient(90deg,transparent,rgba(255,255,255,.95),transparent);border-radius:999px;box-shadow:0 0 18px rgba(255,255,255,.8),0 0 42px rgba(93,140,255,.7);animation:beam .72s ease-out forwards}
@keyframes zap{0%{opacity:0;transform:scaleX(.2)}10%{opacity:1}100%{opacity:0;transform:scaleX(1.08)}}
@keyframes beam{0%{opacity:0;transform:scaleX(.2)}20%{opacity:1}100%{opacity:0;transform:scaleX(1)}}
.screen-flash{position:absolute;inset:0;background:radial-gradient(circle at center,rgba(255,255,255,.16),transparent 45%);animation:flash .28s ease-out forwards}
@keyframes flash{from{opacity:.9}to{opacity:0}}
@media(max-width:1000px){.battle-grid{grid-template-columns:1fr}.center-panel{order:-1;min-height:160px}.event-list{grid-template-columns:repeat(2,1fr)}.admin-grid{grid-template-columns:1fr}.form-grid.four,.gift-form{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.arena,.admin-shell{width:min(100% - 16px,1500px);padding-top:12px}.topbar,.admin-top{align-items:flex-start;flex-direction:column}.gift-grid,.event-list,.form-grid,.form-grid.four,.gift-form{grid-template-columns:1fr}.inline-form{flex-direction:column}.team-panel,.center-panel,.recent,.admin-card{padding:12px;border-radius:15px}.vs{font-size:40px}.span-2{grid-column:span 1}}

/* V3 battlefield */
.battle-stage{width:100%;display:grid;grid-template-columns:48px minmax(0,1fr) 48px;align-items:center;gap:8px;padding:10px 4px;position:relative}
.stage-core{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-size:25px;background:color-mix(in srgb,var(--core-color) 22%,#101726);border:1px solid color-mix(in srgb,var(--core-color) 55%,#29364c);box-shadow:0 0 18px color-mix(in srgb,var(--core-color) 35%,transparent)}
.stage-lane{height:52px;position:relative;overflow:visible}
.lane-line{position:absolute;left:0;right:0;top:50%;height:2px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent)}
.stage-projectile{position:absolute;top:50%;z-index:5;font-size:28px;filter:drop-shadow(0 0 8px var(--attack-color));transform:translateY(-50%)}
.stage-from-left{left:0;animation:stageFlyLeft .9s cubic-bezier(.22,.75,.2,1) forwards}
.stage-from-right{right:0;animation:stageFlyRight .9s cubic-bezier(.22,.75,.2,1) forwards}
.stage-critical{font-size:38px;filter:drop-shadow(0 0 12px var(--attack-color)) drop-shadow(0 0 22px rgba(255,255,255,.4))}
@keyframes stageFlyLeft{0%{left:0;opacity:0;transform:translateY(-50%) scale(.6) rotate(-10deg)}10%{opacity:1}75%{left:82%;transform:translateY(-50%) scale(1.15) rotate(12deg)}100%{left:92%;opacity:0;transform:translateY(-50%) scale(1.7)}}
@keyframes stageFlyRight{0%{right:0;opacity:0;transform:translateY(-50%) scale(.6) rotate(10deg)}10%{opacity:1}75%{right:82%;transform:translateY(-50%) scale(1.15) rotate(-12deg)}100%{right:92%;opacity:0;transform:translateY(-50%) scale(1.7)}}
.damage-popup{position:absolute;top:-8px;z-index:6;font-size:16px;font-weight:1000;color:#fff;text-shadow:0 2px 8px #000;animation:damagePop .95s ease-out forwards;white-space:nowrap}
.popup-right{right:2px}.popup-left{left:2px}.damage-popup.critical{font-size:20px;color:#ffd76f}
@keyframes damagePop{0%{opacity:0;transform:translateY(10px) scale(.7)}20%{opacity:1;transform:translateY(0) scale(1.12)}100%{opacity:0;transform:translateY(-24px) scale(1)}}
.arena-hit .arena{animation:arenaShake .22s linear 2}.arena-hit-strong .arena{animation:arenaShakeStrong .3s linear 3}
@keyframes arenaShake{0%,100%{transform:translateX(0)}25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}
@keyframes arenaShakeStrong{0%,100%{transform:translate(0,0)}20%{transform:translate(-7px,2px)}40%{transform:translate(6px,-2px)}60%{transform:translate(-5px,-1px)}80%{transform:translate(5px,2px)}}
.leader-top{border-color:color-mix(in srgb,var(--team,#ffd76f) 45%,var(--line));background:linear-gradient(90deg,rgba(255,215,111,.10),rgba(12,18,32,.86))}
.attack-fx.mode-lightning::before{filter:drop-shadow(0 0 8px var(--attack-color,#78dcff));background:linear-gradient(90deg,transparent 0%,#fff 18%,var(--attack-color,#78dcff) 42%,#fff 68%,transparent 100%)}

/* V3 media library */
.media-upload-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:end;margin-bottom:14px}
.media-upload-form label{font-size:12px;color:var(--muted);font-weight:700}
.media-upload-form input[type=file]{display:block;width:100%;margin-top:5px;border:1px solid var(--line);background:#0a101c;color:#fff;border-radius:10px;padding:9px}
.media-library{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.media-item{min-width:0;border:1px solid var(--line);background:#0c1220;border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.media-preview{min-height:150px;background:#070b14;display:grid;place-items:center;overflow:hidden}
.media-preview img{width:100%;height:170px;object-fit:cover;display:block}
.audio-badge{font-size:54px;padding-top:18px}.media-preview audio{width:calc(100% - 20px);margin:10px}
.media-meta{padding:10px;display:flex;flex-direction:column;gap:4px;min-width:0}.media-meta b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.media-meta small{color:var(--muted)}.media-meta code{font-size:11px;color:#73e6ff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.media-actions{padding:0 10px 10px;display:flex;gap:6px;flex-wrap:wrap}.media-actions form{margin:0}
@media(max-width:1000px){.media-library{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.media-upload-form{grid-template-columns:1fr}.media-library{grid-template-columns:1fr}.battle-stage{grid-template-columns:42px minmax(0,1fr) 42px}.stage-core{width:40px;height:40px;font-size:21px}}