:root{
  --bg:#020817; --panel:#071426; --panel2:#0b1b31; --line:#123154;
  --blue:#087cff; --blue2:#00b7ff; --text:#f4f8ff; --muted:#91a5bf;
  --green:#19d58b; --danger:#ff405b; --shadow:0 18px 55px rgba(0,0,0,.35);
}
*{box-sizing:border-box} body{margin:0;background:radial-gradient(circle at 75% -10%,#07305c 0,transparent 38%),var(--bg);color:var(--text);font-family:Inter,Segoe UI,Arial,sans-serif;min-height:100vh}
button,input{font:inherit}.topbar{height:72px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;background:rgba(2,8,23,.88);backdrop-filter:blur(12px);position:sticky;top:0;z-index:10}.brand img{height:45px;width:auto;cursor:pointer}.ghost{background:transparent;color:#c9d7e8;border:1px solid #294666;padding:9px 15px;border-radius:10px;cursor:pointer}.hidden{display:none!important}
main{max-width:1080px;margin:0 auto;padding:28px 18px 60px}.hero{padding:30px 4px 20px}.hero h1{font-size:clamp(30px,6vw,52px);margin:0 0 10px;letter-spacing:-1.5px}.hero p{color:var(--muted);font-size:17px;margin:0;max-width:650px}.accent{color:var(--blue2)}
.card{background:linear-gradient(145deg,rgba(11,27,49,.95),rgba(4,15,30,.95));border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}.item{cursor:pointer;transition:.18s;overflow:hidden}.item:hover{transform:translateY(-3px);border-color:#1d70ba}.item .cover{height:145px;border-radius:12px;background:linear-gradient(135deg,#06295a,#06101e);display:flex;align-items:center;justify-content:center;margin-bottom:16px;border:1px solid #16416b}.arena-icon{font-size:46px;color:var(--blue2)}.item h3{margin:0 0 6px}.muted{color:var(--muted)}
.actions{display:flex;gap:10px;flex-wrap:wrap}.primary{border:0;background:linear-gradient(135deg,var(--blue),#0061e8);color:#fff;font-weight:700;padding:13px 18px;border-radius:11px;cursor:pointer;box-shadow:0 10px 25px rgba(0,124,255,.22)}.primary:disabled{opacity:.5;cursor:not-allowed}
.form{max-width:450px;margin:35px auto}.form h2{text-align:center;margin:0 0 8px;font-size:30px}.form .subtitle{text-align:center;color:var(--muted);margin-bottom:24px}.field{margin:14px 0}.field label{display:block;color:#b8c8da;font-size:14px;margin-bottom:7px}.field input{width:100%;background:#030d1c;border:1px solid #1c3c5e;color:#fff;border-radius:10px;padding:13px;outline:none}.field input:focus{border-color:var(--blue)}
.switch{text-align:center;color:var(--muted);margin-top:18px}.link{color:var(--blue2);cursor:pointer}.back{display:inline-flex;margin-bottom:20px;color:#9bb2cb;cursor:pointer}
.step{display:flex;gap:8px;overflow:auto;margin:5px 0 25px}.pill{padding:8px 12px;border:1px solid #1b3b5d;border-radius:99px;color:#91a5bf;white-space:nowrap}.pill.active{background:#082e58;color:#fff;border-color:#0b7dff}
.datebox{background:#061326;border:1px solid var(--line);color:#fff;padding:12px;border-radius:10px}.timegrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:12px}.time{background:#07182b;border:1px solid #19466e;color:#fff;border-radius:12px;padding:16px 10px;text-align:center;cursor:pointer}.time:hover{border-color:var(--blue);background:#082443}.count{display:block;color:var(--blue2);font-size:12px;margin-top:5px}
.replay{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px;background:#061426;border:1px solid #173a5c;border-radius:13px;margin:10px 0}.replay strong{display:block}.video{width:100%;border-radius:16px;background:#000;border:1px solid var(--line);max-height:75vh}.empty{text-align:center;padding:45px;color:var(--muted)}
.spinner{padding:35px;text-align:center;color:var(--muted)}.error{color:#ff8091;background:#35101a;border:1px solid #6f1f2e;padding:12px;border-radius:10px}
@media(max-width:600px){main{padding:20px 14px 45px}.topbar{padding:0 14px;height:64px}.brand img{height:38px}.card{padding:16px}.hero{padding-top:18px}.replay{align-items:flex-start;flex-direction:column}.replay .primary{width:100%}}

.cover img{width:100%;height:100%;object-fit:cover;border-radius:12px;display:block}.master-badge{display:inline-block;color:#61c9ff;background:#06284a;border:1px solid #087cff;padding:5px 10px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:1px}.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}.admin-card{min-height:210px}.admin-icon{font-size:34px;color:#00b7ff;margin-bottom:14px}.admin-editor{max-width:650px}.admin-list{display:grid;gap:12px}.admin-row{display:flex;justify-content:space-between;align-items:center;gap:15px}.admin-row strong,.admin-row .muted{display:block}

/* Master upload UI */
.upload-preview{width:100%;min-height:180px;border:1px dashed #24527b;border-radius:16px;background:#07101f;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:14px;color:#71829a;text-align:center;padding:12px}.upload-preview img{max-width:100%;max-height:280px;object-fit:contain;border-radius:12px}.admin-entity{display:flex;gap:18px;align-items:center}.admin-cover{width:150px;height:105px;border-radius:14px;overflow:hidden;position:relative;background:#07101f;border:1px solid #18324e;cursor:pointer;flex:none}.admin-cover img{width:100%;height:100%;object-fit:cover}.edit-badge{position:absolute;right:8px;bottom:8px;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#0b7cff;color:#fff;font-size:18px;box-shadow:0 6px 20px rgba(0,0,0,.35)}.admin-info{display:flex;flex-direction:column;gap:8px;align-items:flex-start}.admin-info strong{font-size:20px}.admin-info .muted{font-size:13px}.admin-info button{margin-top:4px}.hidden{display:none!important}@media(max-width:700px){.admin-entity{align-items:stretch}.admin-cover{width:120px;height:100px}.admin-info{flex:1}.admin-info strong{font-size:17px}}


/* Master 1.1 visual restoration + upload polish */
.master-home-hero{padding-top:30px}
.master-home-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch}
.master-home-grid .admin-card{min-height:210px}
.upload-tip{margin-top:14px;display:flex;gap:10px;align-items:center;color:var(--muted)}
.upload-tip strong{color:#fff;white-space:nowrap}
.admin-info .actions{margin-top:2px}
.arena-select-cover{cursor:pointer}
@media(max-width:850px){.master-home-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.master-home-grid{grid-template-columns:1fr}.upload-tip{align-items:flex-start;flex-direction:column}}

/* Cache-busting / logo loading */
.brand img.brand-logo-loading{opacity:0;transition:opacity .12s ease}
.brand img.brand-logo-loading.ready{opacity:1}

.master-access{margin-top:14px;padding-top:14px;border-top:1px solid #17304f}.master-link{display:inline-block;color:#22a7ff;text-decoration:none;font-weight:800;font-size:13px}.master-link:hover{color:#fff}