:root{
  --ink:#172029;
  --ink-2:#101820;
  --slate:#2e3944;
  --line:rgba(255,255,255,.12);
  --cream:#f4f1e8;
  --gold:#ffd369;
  --teal:#35b7a9;
  --teal-dark:#0d716a;
  --orange:#ef754a;
  --safe-t:env(safe-area-inset-top,0px);
  --safe-r:env(safe-area-inset-right,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-l:env(safe-area-inset-left,0px);
  color-scheme:dark;
}
*{box-sizing:border-box;min-width:0}
html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--ink);overscroll-behavior:none}
body{font-family:Tahoma,"Segoe UI",system-ui,sans-serif;color:var(--cream);user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}
button{font:inherit;color:inherit}
.sn-root{position:fixed;inset:0;width:100%;height:100vh;height:100svh;height:100dvh;overflow:hidden;outline:0;background:radial-gradient(circle at 12% 5%,rgba(255,211,105,.17),transparent 27%),radial-gradient(circle at 92% 12%,rgba(53,183,169,.18),transparent 25%),linear-gradient(145deg,#1d2731 0%,#172029 52%,#10171f 100%)}
.sn-shell{width:100%;height:100%;padding:calc(7px + var(--safe-t)) calc(7px + var(--safe-r)) calc(7px + var(--safe-b)) calc(7px + var(--safe-l));display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:7px;align-items:center;justify-items:center;overflow:hidden}
.sn-hud{width:min(580px,100%);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;padding:5px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(180deg,rgba(46,57,68,.91),rgba(23,32,41,.84));box-shadow:0 10px 28px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.05);backdrop-filter:blur(10px);z-index:5}
.sn-stat,.sn-pause{height:46px;border:1px solid rgba(255,255,255,.09);border-radius:13px;display:grid;place-content:center;justify-items:center;background:rgba(255,255,255,.055);line-height:1;box-shadow:inset 0 -3px 0 rgba(0,0,0,.15)}
.sn-stat span{font-size:9px;color:rgba(244,241,232,.64);margin-bottom:5px}.sn-stat strong{font-size:17px;font-weight:900;color:var(--gold);font-variant-numeric:tabular-nums}
.sn-pause{border:0;cursor:pointer;font-weight:900;color:#19232c;background:linear-gradient(145deg,#ffe6a4,var(--gold));touch-action:manipulation}.sn-pause:disabled{opacity:.45;cursor:not-allowed}.sn-pause.is-resume{background:linear-gradient(145deg,#7ce2d6,var(--teal));color:#092a28}
.sn-stage-wrap{width:100%;height:100%;min-height:0;display:grid;place-items:center;overflow:hidden}
.sn-stage{position:relative;isolation:isolate;contain:layout paint;aspect-ratio:1;width:min(calc(100vw - 14px - var(--safe-l) - var(--safe-r)),calc(100dvh - 190px - var(--safe-t) - var(--safe-b)),620px);min-width:250px;max-width:100%;max-height:100%;padding:7px;border-radius:24px;background:linear-gradient(145deg,var(--gold),var(--teal));box-shadow:0 18px 48px rgba(0,0,0,.34),0 0 0 1px rgba(255,255,255,.08),0 0 38px rgba(53,183,169,.10);overflow:hidden}
.sn-stage:before{content:"";position:absolute;inset:7px;border-radius:17px;border:1px solid rgba(255,255,255,.13);pointer-events:none;z-index:4}
.sn-board{position:relative;z-index:1;display:block;width:100%;height:100%;border-radius:17px;background:var(--ink-2);outline:0;touch-action:none;cursor:crosshair;box-shadow:inset 0 0 0 2px rgba(0,0,0,.26),inset 0 0 42px rgba(0,0,0,.42)}
.sn-board:focus-visible{box-shadow:inset 0 0 0 2px rgba(0,0,0,.26),0 0 0 4px rgba(255,211,105,.32),inset 0 0 42px rgba(0,0,0,.42)}
.sn-stage-info{position:absolute;z-index:7;left:14px;right:14px;bottom:13px;display:flex;justify-content:space-between;gap:8px;pointer-events:none;font-size:10px;font-weight:800;color:rgba(244,241,232,.72);text-shadow:0 2px 8px rgba(0,0,0,.85)}
.sn-stage-info span{padding:5px 8px;border-radius:999px;background:rgba(10,17,24,.55);border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(6px)}
.sn-toast{position:absolute;z-index:40;top:14px;left:50%;max-width:calc(100% - 30px);padding:9px 13px;border-radius:999px;background:rgba(255,211,105,.97);color:#172029;font-size:13px;font-weight:900;text-align:center;box-shadow:0 14px 32px rgba(0,0,0,.32);transform:translate(-50%,-16px) scale(.94);opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;white-space:normal}
.sn-toast.show{opacity:1;transform:translate(-50%,0) scale(1)}
.sn-overlay{position:absolute;z-index:30;inset:7px;border-radius:17px;display:flex;align-items:center;justify-content:center;padding:16px;background:radial-gradient(circle at 50% 8%,rgba(255,211,105,.19),rgba(16,24,32,.91) 55%,rgba(16,24,32,.97));text-align:center;transition:opacity .18s ease,visibility .18s ease}.sn-overlay.hide{opacity:0;visibility:hidden;pointer-events:none}
.sn-overlay-card{width:min(300px,100%);padding:20px 17px;border:1px solid rgba(255,255,255,.14);border-radius:23px;background:linear-gradient(180deg,rgba(46,57,68,.97),rgba(23,32,41,.97));box-shadow:0 24px 72px rgba(0,0,0,.38)}
.sn-overlay-badge{display:inline-flex;padding:6px 12px;border-radius:999px;background:var(--gold);color:#172029;font-size:11px;font-weight:900}.sn-overlay h1{margin:12px 0 8px;font-size:clamp(22px,6vw,34px);line-height:1.15}.sn-overlay p{margin:0;color:rgba(244,241,232,.76);font-size:13px;line-height:1.9}.sn-countdown{margin:13px auto 0;font-size:clamp(54px,18vw,100px);font-weight:1000;line-height:1;color:var(--gold);text-shadow:0 0 26px rgba(255,211,105,.32)}
.sn-main-button{width:100%;min-height:52px;margin-top:15px;border:0;border-radius:16px;background:linear-gradient(145deg,#ffe49b,var(--gold));color:#172029;font-weight:900;cursor:pointer;touch-action:manipulation;box-shadow:0 14px 34px rgba(255,211,105,.17)}
.sn-pad{position:relative;width:min(270px,100%);height:126px;display:grid;grid-template:repeat(3,1fr)/repeat(3,1fr);gap:4px;padding:5px;border:1px solid var(--line);border-radius:25px;background:linear-gradient(180deg,rgba(46,57,68,.91),rgba(23,32,41,.84));box-shadow:0 12px 30px rgba(0,0,0,.24);backdrop-filter:blur(10px);direction:ltr;z-index:5}
.sn-key{border:1px solid rgba(255,255,255,.11);border-radius:15px;background:rgba(255,255,255,.07);display:grid;place-items:center;cursor:pointer;touch-action:none;box-shadow:inset 0 -4px 0 rgba(0,0,0,.20);transition:transform .07s ease,background .1s ease,box-shadow .1s ease}.sn-key svg{width:32px;height:32px;fill:#fff;filter:drop-shadow(0 2px 3px rgba(0,0,0,.28));pointer-events:none}.sn-key:active,.sn-key.is-active{transform:translateY(2px) scale(.96);background:linear-gradient(145deg,rgba(255,211,105,.43),rgba(53,183,169,.30));box-shadow:inset 0 -2px 0 rgba(0,0,0,.20),0 0 20px rgba(255,211,105,.10)}.sn-key.is-active svg{fill:var(--gold)}
.sn-up{grid-area:1/2}.sn-left{grid-area:2/1}.sn-right{grid-area:2/3}.sn-down{grid-area:3/2}.sn-pad-center{grid-area:2/2;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle,var(--teal) 0 25%,rgba(53,183,169,.12) 27% 58%,transparent 60%);color:var(--gold);font-size:13px;pointer-events:none}
.sn-key:focus-visible,.sn-pause:focus-visible,.sn-main-button:focus-visible{outline:3px solid rgba(255,211,105,.55);outline-offset:2px}
.sn-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
@media(max-width:360px){.sn-shell{padding-top:calc(5px + var(--safe-t));padding-bottom:calc(5px + var(--safe-b));gap:5px}.sn-hud{padding:4px;gap:4px;border-radius:15px}.sn-stat,.sn-pause{height:40px;border-radius:11px}.sn-stat span{font-size:8px}.sn-stat strong{font-size:15px}.sn-stage{width:min(calc(100vw - 10px - var(--safe-l) - var(--safe-r)),calc(100dvh - 164px - var(--safe-t) - var(--safe-b)),520px);min-width:230px;padding:6px;border-radius:20px}.sn-stage:before,.sn-overlay{inset:6px;border-radius:14px}.sn-board{border-radius:14px}.sn-stage-info{left:12px;right:12px;bottom:11px}.sn-stage-info span:last-child{display:none}.sn-pad{width:235px;height:109px;padding:4px;border-radius:21px}.sn-key{border-radius:13px}.sn-key svg{width:28px;height:28px}}
@media(orientation:landscape) and (max-height:620px){.sn-shell{grid-template-columns:minmax(118px,23vw) minmax(0,1fr) minmax(150px,27vw);grid-template-rows:minmax(0,1fr);gap:7px;padding:calc(5px + var(--safe-t)) calc(7px + var(--safe-r)) calc(5px + var(--safe-b)) calc(7px + var(--safe-l))}.sn-hud{width:100%;height:min(330px,100%);grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:repeat(2,minmax(0,1fr));align-self:center}.sn-stat,.sn-pause{height:auto;min-height:48px}.sn-stage-wrap{grid-column:2;grid-row:1}.sn-stage{width:min(calc(100dvh - 10px - var(--safe-t) - var(--safe-b)),calc(100vw - 300px - var(--safe-l) - var(--safe-r)),620px);min-width:230px}.sn-pad{grid-column:3;grid-row:1;width:min(230px,100%);height:min(230px,78vh);min-height:150px;align-self:center}.sn-key svg{width:clamp(28px,5.5vh,40px);height:clamp(28px,5.5vh,40px)}}
@media(min-width:900px) and (min-height:650px){.sn-shell{gap:9px;padding:10px}.sn-stage{width:min(calc(100vw - 40px),calc(100dvh - 236px),650px)}.sn-pad{width:290px;height:134px}.sn-key svg{width:36px;height:36px}}
@media(prefers-reduced-motion:reduce){.sn-toast,.sn-overlay,.sn-key{transition:none}}