:root{
  --red:#e53935;--green:#43a047;--yellow:#fbc02d;--blue:#1e88e5;
  --bg1:#4527a0;--bg2:#1a0b4a;--card:#ffffff;--ink:#1d1640;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif;color:var(--ink);
  background:radial-gradient(120% 80% at 50% 0%,#6a3fd1 0%,var(--bg1) 35%,var(--bg2) 100%) fixed;overscroll-behavior:none}
button{font:inherit;cursor:pointer}
#app{max-width:560px;margin:0 auto;min-height:100%;position:relative}
.screen{display:none;min-height:100vh;min-height:100dvh;padding:max(14px,env(safe-area-inset-top)) 14px max(10px,env(safe-area-inset-bottom));flex-direction:column}
.screen.active{display:flex}

/* home */
.hero{text-align:center;color:#fff;margin:10px 0 14px}
.logo{width:64px;height:64px;margin:0 auto 8px;display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:6px;background:#fff;border-radius:18px;box-shadow:0 8px 24px rgba(0,0,0,.35);transform:rotate(-8deg)}
.logo .sq{border-radius:6px}.sq.r{background:var(--red)}.sq.g{background:var(--green)}.sq.b{background:var(--blue)}.sq.y{background:var(--yellow)}
h1{margin:4px 0 2px;font-size:30px;font-weight:900;letter-spacing:.3px;text-shadow:0 3px 0 rgba(0,0,0,.25)}
.hi{margin:4px 0 0;opacity:.9;font-size:15px}
.link{background:none;border:0;padding:2px 4px;font-size:14px}
.card{background:var(--card);border-radius:22px;padding:16px;margin:0 0 14px;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.label{font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;color:#6b5fa8}
.code{font-size:46px;font-weight:900;letter-spacing:8px;text-align:center;margin:8px 0 12px;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;color:#2b1a6b;
  background:#f3efff;border:2px dashed #b9a8ff;border-radius:16px;padding:8px 0 8px 8px;user-select:all}
.row{display:flex;gap:10px}
.btn{border:0;border-radius:14px;padding:13px 14px;font-weight:800;font-size:16px;flex:1;transition:transform .08s}
.btn:active{transform:scale(.96)}
.btn.primary{background:linear-gradient(#ffca28,#ffa000);color:#3a2300;box-shadow:0 4px 0 #c67c00}
.btn.wa{background:#25d366;color:#fff;box-shadow:0 4px 0 #128c4a}
.btn.go{background:linear-gradient(#66bb6a,#2e7d32);color:#fff;box-shadow:0 4px 0 #1b5e20;flex:0 0 auto;padding:13px 18px}
.btn.ghost{background:rgba(255,255,255,.14);color:#fff;border:2px solid rgba(255,255,255,.35)}
.btn.small{padding:10px;font-size:14px}
.btn:disabled{opacity:.5}
.status{display:flex;align-items:center;gap:8px;justify-content:center;margin-top:12px;font-size:13px;color:#555}
.dot{width:9px;height:9px;border-radius:50%;background:#bbb}
.status.ok .dot{background:#2e7d32;box-shadow:0 0 0 3px #c8e6c9}
.status.bad .dot{background:#e53935}
.status.wait .dot{background:#ffa000;animation:blink 1s infinite}
@keyframes blink{50%{opacity:.3}}
.sub{margin:4px 0 10px;color:#777;font-size:14px}
#friendCode{flex:1;min-width:0;font-size:24px;font-weight:800;letter-spacing:4px;text-transform:uppercase;padding:10px 12px;border-radius:14px;border:2px solid #d6ccff;background:#faf8ff;color:#2b1a6b;font-family:ui-monospace,Menlo,Consolas,monospace;outline:none}
#friendCode:focus{border-color:#7c4dff}
.msg{min-height:20px;margin-top:8px;font-size:14px;font-weight:600;color:#6b5fa8}
.msg.err{color:#d32f2f}.msg.ok{color:#2e7d32}
#botBtn{flex:0 0 auto;margin-top:2px}
footer{margin-top:auto;padding-top:18px;text-align:center;color:rgba(255,255,255,.65);font-size:13px;font-weight:600}

/* game */
#game{padding-top:max(8px,env(safe-area-inset-top));gap:8px}
.topbar{display:flex;align-items:center;justify-content:space-between;color:#fff}
.gtitle{font-weight:900;font-size:17px;opacity:.9}
.iconbtn{width:40px;height:40px;border-radius:12px;border:0;background:rgba(255,255,255,.15);color:#fff;font-size:18px}
.pbar{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.1);border:2px solid rgba(255,255,255,.15);border-radius:18px;padding:8px 10px;color:#fff;min-height:68px;transition:all .25s}
.pbar.active{background:rgba(255,255,255,.95);color:var(--ink);border-color:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.25),0 8px 20px rgba(0,0,0,.3)}
.avatar{width:42px;height:42px;border-radius:50%;border:3px solid #fff;flex:0 0 auto;box-shadow:inset 0 -6px 0 rgba(0,0,0,.18)}
.pinfo{flex:1;min-width:0}
.pname{font-weight:900;font-size:17px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.psub{font-size:12.5px;opacity:.75;font-weight:600}
.dice-slot{width:58px;height:58px;flex:0 0 auto;display:flex;align-items:center;justify-content:center}
.boardwrap{position:relative;align-self:center;width:min(100%,calc(100dvh - 300px),540px);aspect-ratio:1}
#board{width:100%;height:100%;display:block;border-radius:14px;box-shadow:0 12px 30px rgba(0,0,0,.45);touch-action:manipulation}
.turnline{text-align:center;color:#fff;font-weight:800;font-size:15px;min-height:22px}
.gfoot{padding-top:2px;margin-top:auto}
.toast{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.6);background:rgba(20,10,60,.88);color:#fff;font-weight:900;font-size:22px;padding:12px 20px;border-radius:16px;opacity:0;pointer-events:none;transition:all .2s;white-space:nowrap}
.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}

/* dice */
.dice{width:54px;height:54px;position:relative;display:none}
.dice.on{display:block}
.dice .face{width:100%;height:100%;background:linear-gradient(145deg,#fff,#e8e4f5);border-radius:13px;box-shadow:0 4px 0 #b9b2d6,0 6px 12px rgba(0,0,0,.3);display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);padding:7px;gap:1px}
.dice .face i{display:block;width:10px;height:10px;border-radius:50%;background:#1d1640;align-self:center;justify-self:center;visibility:hidden}
.dice .face[data-v="1"] i:nth-child(5),
.dice .face[data-v="2"] i:nth-child(1),.dice .face[data-v="2"] i:nth-child(9),
.dice .face[data-v="3"] i:nth-child(1),.dice .face[data-v="3"] i:nth-child(5),.dice .face[data-v="3"] i:nth-child(9),
.dice .face[data-v="4"] i:nth-child(1),.dice .face[data-v="4"] i:nth-child(3),.dice .face[data-v="4"] i:nth-child(7),.dice .face[data-v="4"] i:nth-child(9),
.dice .face[data-v="5"] i:nth-child(1),.dice .face[data-v="5"] i:nth-child(3),.dice .face[data-v="5"] i:nth-child(5),.dice .face[data-v="5"] i:nth-child(7),.dice .face[data-v="5"] i:nth-child(9),
.dice .face[data-v="6"] i:nth-child(1),.dice .face[data-v="6"] i:nth-child(3),.dice .face[data-v="6"] i:nth-child(4),.dice .face[data-v="6"] i:nth-child(6),.dice .face[data-v="6"] i:nth-child(7),.dice .face[data-v="6"] i:nth-child(9){visibility:visible}
.dice .face[data-v="1"] i:nth-child(5){background:#e53935;width:13px;height:13px}
.dice.rolling .face{animation:roll .55s ease-out}
@keyframes roll{0%{transform:rotate(0) scale(1)}25%{transform:rotate(200deg) scale(.8) translateY(-6px)}50%{transform:rotate(380deg) scale(1.1)}75%{transform:rotate(540deg) scale(.9)}100%{transform:rotate(720deg) scale(1)}}
.dice .hint{display:none;position:absolute;bottom:-17px;left:0;right:0;text-align:center;font-size:10px;font-weight:900;letter-spacing:1px;color:#7c4dff}
.dice.mine .hint{display:block}
.dice.mine .face{animation:pulse 1s ease-in-out infinite;box-shadow:0 4px 0 #b9b2d6,0 0 0 4px #ffca28,0 0 18px #ffca28}
@keyframes pulse{50%{transform:scale(1.08)}}

/* overlays */
.overlay{position:fixed;inset:0;background:rgba(10,4,30,.72);display:none;align-items:center;justify-content:center;padding:20px;z-index:20;backdrop-filter:blur(3px)}
.overlay.show{display:flex}
.modal{background:#fff;border-radius:24px;padding:22px 20px;width:100%;max-width:340px;text-align:center;display:flex;flex-direction:column;gap:10px;box-shadow:0 20px 60px rgba(0,0,0,.5);animation:pop .25s ease-out}
@keyframes pop{from{transform:scale(.8);opacity:0}}
.modal h2{margin:0;font-size:23px;font-weight:900}
.modal p{margin:0 0 4px;color:#666}
.modal .big{font-size:46px}
.modal .btn.ghost{color:#5b4a9e;border-color:#d6ccff;background:#f6f3ff}
#nameInput{font-size:20px;padding:12px;border-radius:14px;border:2px solid #d6ccff;text-align:center;font-weight:700;outline:none}
.snack{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(120px);background:#1d1640;color:#fff;padding:12px 18px;border-radius:14px;font-weight:700;z-index:30;transition:transform .25s;max-width:90%;text-align:center}
.snack.show{transform:translateX(-50%) translateY(0)}
@media (max-height:640px){.code{font-size:38px;margin:6px 0 8px}.hero{margin:2px 0 8px}h1{font-size:26px}.logo{width:52px;height:52px}.card{padding:13px}}