:root{--bg:#08111f;--card:#101c30;--text:#f5f7fb;--muted:#95a3b8;--accent:#22d3ee;--pink:#fb7185}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 20% 0,#164e63,transparent 30%),radial-gradient(circle at 80% 20%,#581c87,transparent 25%),var(--bg);font-family:Arial,Helvetica,sans-serif;color:var(--text)}a{color:inherit;text-decoration:none}.container{width:min(1100px,94%);margin:auto}.nav{display:flex;justify-content:space-between;align-items:center;padding:22px 0}.brand{font-weight:900;font-size:26px}.brand span{color:var(--accent)}.hero{padding:45px 0 30px}.hero h1{font-size:52px;line-height:1;margin:0 0 14px}.hero p{color:var(--muted);font-size:18px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:18px}.card{background:rgba(16,28,48,.82);border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:16px;box-shadow:0 20px 45px rgba(0,0,0,.25)}.thumb{height:130px;border-radius:16px;background:linear-gradient(135deg,#22d3ee,#fb7185);display:flex;align-items:center;justify-content:center;font-size:42px}.btn{display:inline-block;background:var(--accent);color:#07111f;font-weight:900;padding:12px 18px;border-radius:14px;margin-top:12px;border:0;cursor:pointer}.btn.danger{background:var(--pink)}.muted{color:var(--muted)}.play-layout{display:grid;grid-template-columns:1fr 300px;gap:18px}.game-frame{width:100%;height:680px;border:0;border-radius:20px;background:#000}.ad{background:rgba(255,255,255,.08);border:1px dashed rgba(255,255,255,.25);border-radius:18px;padding:25px;text-align:center;color:var(--muted);margin-bottom:18px}.table{width:100%;border-collapse:collapse;background:rgba(16,28,48,.7);border-radius:16px;overflow:hidden}.table th,.table td{padding:12px;border-bottom:1px solid rgba(255,255,255,.08);text-align:left}.form{display:grid;gap:12px}.input,textarea,select{width:100%;padding:12px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:#07111f;color:white}@media(max-width:800px){.hero h1{font-size:36px}.play-layout{grid-template-columns:1fr}.game-frame{height:620px}}
.notice{background:rgba(34,211,238,.18);border:1px solid rgba(34,211,238,.35);border-radius:14px;padding:12px 14px}.notice.error{background:rgba(251,113,133,.18);border-color:rgba(251,113,133,.45)}.small{font-size:13px}.upload-box{display:block;border:1px dashed rgba(255,255,255,.25);border-radius:14px;padding:16px;background:rgba(255,255,255,.04)}.play-layout.single{grid-template-columns:1fr}.play-layout.single .game-frame{height:760px}.table a{text-decoration:underline;text-decoration-color:rgba(255,255,255,.3)}
.login-wrap{min-height:100vh;display:grid;place-items:center}.login-card{width:min(430px,94vw)}

/* Admin dashboard upgrade */
.admin-body{background:#07111f;color:var(--text)}
.admin-shell{display:grid;grid-template-columns:270px 1fr;min-height:100vh}
.admin-sidebar{position:sticky;top:0;height:100vh;padding:24px;background:rgba(5,12,24,.95);border-right:1px solid rgba(255,255,255,.08)}
.admin-brand{display:block;margin-bottom:26px}.side-menu{display:grid;gap:8px}.side-menu a{padding:12px 14px;border-radius:14px;color:var(--muted);background:transparent}.side-menu a:hover{background:rgba(255,255,255,.07);color:var(--text)}.side-menu .danger-link{color:#fb7185}
.admin-main{padding:28px;max-width:1250px;width:100%}.admin-topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.admin-topbar h1{margin:0;font-size:38px}.admin-section{margin:0 0 28px;scroll-margin-top:20px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(150px,1fr));gap:14px}.stat-card{background:linear-gradient(145deg,rgba(34,211,238,.16),rgba(251,113,133,.08));border:1px solid rgba(255,255,255,.09);border-radius:22px;padding:18px}.stat-card span{display:block;color:var(--muted);font-size:13px}.stat-card strong{font-size:34px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px}.table-wrap{overflow:auto;border-radius:16px}.actions{display:flex;gap:8px;flex-wrap:wrap}.actions form{margin:0}.small-btn{padding:8px 11px;border-radius:10px;margin:0;font-size:12px}.pill{display:inline-block;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:800}.pill.ok{background:rgba(34,197,94,.16);color:#86efac}.pill.off{background:rgba(148,163,184,.18);color:#cbd5e1}.admin-form{max-width:900px}.panels{align-items:start}.checklist p{margin:8px 0}
@media(max-width:900px){.admin-shell{grid-template-columns:1fr}.admin-sidebar{position:relative;height:auto}.side-menu{grid-template-columns:repeat(2,1fr)}.admin-main{padding:18px}.stats-grid,.two-col{grid-template-columns:1fr}.admin-topbar{display:block}.table{min-width:720px}}