:root{
  --bg-0:#070912;
  --bg-1:#0d1124;
  --glass: rgba(255,255,255,0.06);
  --glass-brd: rgba(255,255,255,0.10);
  --text:#eaf0ff;
  --muted:#8a94b8;
  --primary:#7c5cff;
  --primary-2:#22d3ee;
  --danger:#ff5e7a;
  --good:#4ade80;
  --shadow: 0 20px 60px -20px rgba(124,92,255,.45);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100vh;color:var(--text);font-family:'Inter',system-ui,sans-serif;background:var(--bg-0);overflow-x:hidden}
body{
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(124,92,255,.25), transparent 60%),
    radial-gradient(900px 500px at 110% 20%, rgba(34,211,238,.18), transparent 60%),
    linear-gradient(180deg, #070912 0%, #0a0d1f 100%);
}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:.5px}
small{color:var(--muted)}
.muted{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:1.2px}
.hidden{display:none !important}
kbd{background:#1a1f3a;padding:2px 6px;border-radius:4px;font-family:'Press Start 2P',monospace;font-size:10px}

/* floating background blobs */
.bg-orbs{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.bg-orbs span{position:absolute;border-radius:50%;filter:blur(80px);opacity:.55;animation:float 18s ease-in-out infinite}
.bg-orbs span:nth-child(1){width:380px;height:380px;background:#7c5cff;top:-80px;left:-60px}
.bg-orbs span:nth-child(2){width:320px;height:320px;background:#22d3ee;bottom:-60px;right:-40px;animation-delay:-6s}
.bg-orbs span:nth-child(3){width:260px;height:260px;background:#ff5e7a;top:40%;left:55%;animation-delay:-12s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-30px)}}

.glass{
  background:var(--glass);
  border:1px solid var(--glass-brd);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius:18px;
  box-shadow: var(--shadow);
}

/* ============ LOGIN ============ */
.overlay{position:fixed;inset:0;display:grid;place-items:center;padding:20px;z-index:10}
.card{width:100%;max-width:460px;padding:32px}
.title{
  font-family:'Press Start 2P',monospace;
  font-size:28px;line-height:1.2;text-align:center;
  background:linear-gradient(90deg,#7c5cff,#22d3ee,#ff5e7a);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.title span{color:#ffd24a;-webkit-text-fill-color:#ffd24a}
.title small{display:block;font-size:10px;color:var(--muted);margin-top:8px;letter-spacing:6px}
.subtitle{text-align:center;color:var(--muted);margin:14px 0 22px}

.card label{display:block;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1.2px;margin:14px 0 6px}
.card input{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--glass-brd);
  background:rgba(0,0,0,.3);color:var(--text);font-size:15px;outline:none;transition:.2s;
}
.card input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(124,92,255,.2)}

.avatar-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:6px}
.avatar-grid button{
  background:rgba(0,0,0,.3);border:2px solid transparent;border-radius:12px;
  padding:4px;cursor:pointer;transition:.15s;aspect-ratio:1;display:grid;place-items:center;
}
.avatar-grid button:hover{transform:translateY(-2px);background:rgba(255,255,255,.06)}
.avatar-grid button.selected{border-color:var(--primary);background:rgba(124,92,255,.15);box-shadow:0 0 20px rgba(124,92,255,.4)}
.avatar-grid img{width:100%;height:100%;image-rendering:pixelated}

.btn-primary{
  margin-top:20px;width:100%;padding:14px;border-radius:12px;border:none;cursor:pointer;
  font-weight:800;letter-spacing:1.5px;color:white;font-size:14px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  box-shadow:0 10px 30px -10px rgba(124,92,255,.7);
  transition:.2s;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 35px -8px rgba(124,92,255,.9)}
.btn-primary.small{margin:0;width:auto;padding:10px 18px;font-size:12px}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--glass-brd);color:var(--text);padding:10px 14px;border-radius:10px;cursor:pointer;font-size:13px}
.btn-ghost:hover{background:rgba(255,255,255,.12)}

/* ============ GAME ============ */
#game{position:relative;z-index:1;padding:18px;max-width:1300px;margin:0 auto}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;margin-bottom:18px}
.topbar .left{display:flex;align-items:center;gap:18px}
.topbar img{width:48px;height:48px;image-rendering:pixelated;background:rgba(0,0,0,.25);border-radius:12px;padding:2px}
.topbar h2{font-size:16px}
.topbar .right{display:flex;gap:8px}

.layout{display:grid;grid-template-columns:auto 280px 320px;gap:18px}
@media(max-width:1100px){.layout{grid-template-columns:1fr 1fr;}.board-area{grid-column:1/-1}}
@media(max-width:700px){.layout{grid-template-columns:1fr}}

.board-area{padding:18px}
.board-wrapper{display:flex;gap:18px;align-items:flex-start}
.board-stack{position:relative}
#board{
  border-radius:12px;
  background:#05060f;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.06), 0 20px 50px -20px rgba(0,0,0,.7);
}
.gameover{
  position:absolute;inset:0;display:grid;place-items:center;
  background:rgba(5,6,15,.85);backdrop-filter:blur(6px);border-radius:12px;
  text-align:center;font-family:'Press Start 2P',monospace;color:var(--danger);
  animation:pop .3s ease;
}
.gameover small{display:block;color:var(--muted);font-family:'Inter';margin-top:10px;font-weight:600}
@keyframes pop{from{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}

.side{display:flex;flex-direction:column;gap:10px;min-width:120px}
.panel{padding:12px;border-radius:12px;background:rgba(0,0,0,.25);border:1px solid var(--glass-brd)}
.panel h3{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:1.2px;margin-bottom:8px}
.panel.stat .big{font-family:'Press Start 2P',monospace;font-size:20px;color:var(--primary-2)}
.panel.hint small{line-height:1.8;color:var(--muted)}
#next{background:#05060f;border-radius:8px;display:block}

/* opponents */
.opponents{padding:18px;max-height:600px;overflow:auto}
.opponents h3{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1.2px;margin-bottom:12px}
#opponentsList{display:grid;gap:12px}
.opponent{
  display:grid;grid-template-columns:56px 1fr;gap:10px;align-items:center;
  background:rgba(0,0,0,.25);padding:10px;border-radius:12px;border:1px solid var(--glass-brd);
  transition:.2s;
}
.opponent:hover{border-color:var(--primary)}
.opponent.dead{opacity:.55;border-color:var(--danger)}
.opponent img{width:56px;height:56px;image-rendering:pixelated;background:rgba(0,0,0,.3);border-radius:10px}
.opponent .info{display:flex;flex-direction:column;gap:6px;min-width:0}
.opponent .info .row{display:flex;justify-content:space-between;align-items:center;gap:6px}
.opponent .name{font-weight:800;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.opponent .meta{font-size:11px;color:var(--muted)}
.opponent canvas{width:100%;border-radius:6px;background:#05060f}

/* chat */
.chat{padding:18px;display:flex;flex-direction:column;max-height:600px}
.chat h3{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1.2px;margin-bottom:10px}
#messages{flex:1;overflow-y:auto;padding:6px;display:flex;flex-direction:column;gap:6px;min-height:300px}
.msg{padding:8px 12px;border-radius:10px;background:rgba(0,0,0,.25);font-size:13px;word-wrap:break-word;animation:slideIn .2s ease}
.msg.system{background:transparent;color:var(--muted);font-size:11px;text-align:center;font-style:italic}
.msg .u{font-weight:800;color:var(--primary-2);margin-right:6px}
@keyframes slideIn{from{transform:translateY(6px);opacity:0}to{transform:translateY(0);opacity:1}}
#chatForm{display:flex;gap:8px;margin-top:10px}
#chatForm input{flex:1;padding:10px 12px;border-radius:10px;border:1px solid var(--glass-brd);background:rgba(0,0,0,.3);color:var(--text);outline:none}
#chatForm input:focus{border-color:var(--primary)}

/* scrollbar */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.1);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.2)}