:root{
  --bg:#06090d;--panel:#0c1015;--panel2:#10151c;--line:rgba(255,255,255,.075);
  --line2:rgba(255,255,255,.13);--text:#eef2f6;--muted:#7f8894;--soft:#bac2cc;
  --board:#0f1319;--grid:rgba(255,255,255,.045);--overlay:rgba(7,9,11,.68);
  --button:#edf0f3;--buttonText:#0d1014;--shadow:0 24px 80px rgba(0,0,0,.2)
}
:root[data-theme="light"]{
  --bg:#f2f5f8;--panel:#fff;--panel2:#f7f9fb;--line:rgba(7,16,28,.09);
  --line2:rgba(7,16,28,.14);--text:#101722;--muted:#677383;--soft:#4d5c6d;
  --board:#fcfdff;--grid:rgba(10,16,23,.07);--overlay:rgba(243,247,250,.66);
  --button:#121924;--buttonText:#f7fafc;--shadow:0 24px 80px rgba(18,28,45,.08)
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}
body{
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;transition:background .2s ease,color .2s ease;
  background-image:radial-gradient(circle at 50% 0%,rgba(255,255,255,.035),transparent 34%)
}
button{font:inherit;color:inherit}
.app{min-height:100dvh;display:grid;place-items:center;padding:12px 18px}
.shell{
  width:min(1040px,100%);display:grid;grid-template-columns:minmax(155px,210px) auto minmax(155px,210px);
  gap:16px;align-items:center;justify-content:center
}
.side{display:flex;flex-direction:column;gap:10px;min-width:0}
.brand{margin-bottom:4px}
.eyebrow,.label,.state{
  color:var(--muted);font-size:10px;letter-spacing:.17em;text-transform:uppercase
}
.eyebrow{margin-bottom:8px}.title{font-size:18px;font-weight:700;letter-spacing:-.03em}
.card,.mini{
  border:1px solid var(--line);background:linear-gradient(180deg,var(--panel2),var(--panel));
  border-radius:14px;box-shadow:var(--shadow);transition:.2s ease
}
.card{padding:12px}.label{margin-bottom:8px}
.metric{font-size:26px;line-height:1;font-weight:650;letter-spacing:-.045em;font-variant-numeric:tabular-nums}
.metric.small{font-size:19px}.desktop-stats{display:grid;gap:10px}
.mobile-rail{display:contents}
.mobile-utility{display:none}
.preview-stack{display:grid;gap:10px}
.preview-card{width:100%;text-align:left;appearance:none}
.hold-card{cursor:pointer}
.preview{aspect-ratio:1.75;display:grid;place-items:center}
.preview canvas{width:100%;height:100%;display:block}
.game-wrap{
  width:min(420px,calc((100dvh - 24px)/2));max-width:100%;justify-self:center
}
.board-shell{
  position:relative;width:100%;aspect-ratio:10/20;overflow:hidden;border:1px solid var(--line2);
  border-radius:18px;background:var(--board);box-shadow:var(--shadow),inset 0 1px rgba(255,255,255,.03)
}
#game{width:100%;height:100%;display:block;touch-action:none}
.topbar{
  position:absolute;z-index:3;top:10px;left:10px;right:10px;display:flex;
  align-items:center;justify-content:space-between;gap:8px;pointer-events:none
}
.top-actions{display:flex;gap:7px}
.chip{
  pointer-events:auto;min-height:34px;padding:0 10px;border:1px solid var(--line);
  border-radius:999px;background:color-mix(in srgb,var(--panel) 88%,transparent);
  color:var(--soft);cursor:pointer;backdrop-filter:blur(10px)
}
.chip:hover{color:var(--text);border-color:var(--line2)}
.overlay{
  position:absolute;inset:0;z-index:4;display:grid;place-items:center;padding:24px;
  background:var(--overlay);backdrop-filter:blur(12px);opacity:0;pointer-events:none;transition:opacity .16s ease
}
.overlay.show{opacity:1;pointer-events:auto}
.overlay-card{width:min(320px,100%);text-align:center}
.start-title{
  margin:0 0 16px;
  font-size:32px;
  line-height:1;
  font-weight:780;
  letter-spacing:-.045em;
}
.overlay h1{margin:0 0 16px;font-size:32px;letter-spacing:-.045em}
.overlay p{margin:0 0 20px;color:var(--muted);font-size:13px;line-height:1.5}
.primary{
  width:100%;padding:13px 16px;border:1px solid var(--button);border-radius:13px;
  background:var(--button);color:var(--buttonText);font-weight:700;cursor:pointer
}
.controls{color:var(--muted);font-size:11px;line-height:1.65}
.controls div{display:flex;gap:7px;align-items:center;flex-wrap:wrap}
kbd{
  min-width:24px;padding:1px 6px;border:1px solid var(--line);border-radius:6px;
  background:var(--panel2);color:var(--soft);font:inherit;text-align:center
}
.theme-card{display:grid;gap:4px}
.theme-buttons{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.theme-buttons button{
  min-height:38px;border:1px solid var(--line);border-radius:11px;background:var(--panel2);
  color:var(--soft);cursor:pointer;font-size:12px
}
.theme-buttons button.active{border-color:var(--line2);color:var(--text)}
.mobile-hud,.touch-panel{display:none}
.mini{padding:9px 11px}
.mini span{display:block;color:var(--muted);font-size:9px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:5px}
.mini strong{display:block;font-size:19px;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.touch-panel{grid-template-columns:repeat(4,1fr);gap:7px}
.touch-panel button{
  min-height:50px;border:1px solid var(--line);border-radius:13px;background:linear-gradient(180deg,var(--panel2),var(--panel));
  font-size:18px;touch-action:manipulation
}
.touch-panel .wide{grid-column:span 2}.touch-panel .text{font-size:13px;font-weight:650}

@media(max-height:820px) and (min-width:761px){
  .game-wrap{width:min(380px,calc((100dvh - 18px)/2))}
  .shell{gap:12px}.card{padding:10px}.preview{aspect-ratio:1.95}
  .brand{margin-bottom:0}.controls{line-height:1.5}.metric{font-size:23px}.metric.small{font-size:17px}
}
@media(max-height:700px) and (min-width:761px){
  .game-wrap{width:min(330px,calc((100dvh - 14px)/2))}
  .shell{grid-template-columns:minmax(140px,175px) auto minmax(140px,175px)}
  .eyebrow,.label,.state{font-size:9px}.title{font-size:16px}.card{padding:9px 10px}
}
@media(max-width:760px){
  html,body{
    width:100%;height:100%;min-height:100%;
    overflow:hidden;overscroll-behavior:none;
  }
  body{position:fixed;inset:0}
  .app{
    width:100%;height:100dvh;min-height:0;display:block;
    padding:max(6px,env(safe-area-inset-top)) 7px max(7px,env(safe-area-inset-bottom));
  }
  .shell{
    width:100%;height:100%;max-width:430px;margin:0 auto;
    display:grid;
    grid-template-columns:94px minmax(0,1fr);
    grid-template-rows:minmax(0,1fr) auto;
    gap:7px;
    align-items:stretch;
  }

  .side.left{display:none}
  .side.right{display:contents}

  .mobile-rail{
    display:flex;
    grid-column:1;grid-row:1;
    min-height:0;
    flex-direction:column;
    gap:6px;
    align-self:stretch;
  }
  .mobile-hud{
    display:grid;
    grid-template-columns:1fr;
    gap:5px;
  }
  .mini{
    min-height:39px;
    padding:5px 7px;
    border-radius:11px;
    box-shadow:none;
  }
  .mini span{
    font-size:7px;
    letter-spacing:.11em;
    margin-bottom:1px;
  }
  .mini strong{
    font-size:15px;
    line-height:1;
  }

  .preview-stack{
    display:grid;
    gap:5px;
    width:100%;
  }
  .preview-stack .card{
    width:100%;
    height:76px;
    padding:6px 5px;
    border-radius:11px;
    box-shadow:none;
    overflow:hidden;
  }
  .preview-stack .label{
    margin-bottom:0;
    font-size:7px;
    letter-spacing:.11em;
  }
  .preview-stack .preview{
    height:54px;
    aspect-ratio:auto;
  }
  .hold-card{
    cursor:pointer;
    -webkit-tap-highlight-color:transparent;
  }
  .hold-card:active{
    transform:translateY(1px);
    background:color-mix(in srgb,var(--panel2) 88%,var(--text) 5%);
  }

  .mobile-utility{
    display:grid;
    grid-template-columns:1fr;
    gap:5px;
    margin-top:0;
  }
  .mobile-utility button{
    width:100%;
    height:36px;
    min-height:36px;
    padding:0 8px;
    border:1px solid var(--line);
    border-radius:11px;
    background:linear-gradient(180deg,var(--panel2),var(--panel));
    color:var(--soft);
    font-size:10px;
    font-weight:700;
    letter-spacing:.04em;
    touch-action:manipulation;
    -webkit-tap-highlight-color:transparent;
  }
  .mobile-utility button:active{
    transform:translateY(1px);
  }

  .game-wrap{
    grid-column:2;grid-row:1;
    width:min(100%,calc((100dvh - 64px)/2));
    max-width:100%;
    min-width:0;min-height:0;
    align-self:center;
    justify-self:center;
  }
  .board-shell{
    width:100%;
    aspect-ratio:10/20;
    border-radius:15px;
    box-shadow:0 12px 34px rgba(0,0,0,.08),inset 0 1px rgba(255,255,255,.03);
  }

  .topbar{display:none}

  .theme-card,.controls{display:none}

  .touch-panel{
    display:grid;
    grid-column:1/-1;
    grid-row:2;
    grid-template-columns:repeat(3,1fr);
    gap:7px;
  }
  .touch-panel button{
    height:47px;min-height:47px;
    border:1px solid var(--line);
    border-radius:13px;
    background:linear-gradient(180deg,var(--panel2),var(--panel));
    font-size:22px;
    touch-action:manipulation;
    box-shadow:none;
    -webkit-tap-highlight-color:transparent;
    user-select:none;
  }
  .touch-panel button:active{
    transform:translateY(1px);
    background:color-mix(in srgb,var(--panel2) 82%,var(--text) 6%);
  }

  .overlay{padding:16px}
  .overlay-card{width:min(250px,88%)}
  .primary{padding:12px 14px}
}

@media(max-width:390px){
  .shell{
    grid-template-columns:86px minmax(0,1fr);
    gap:6px;
  }
  .game-wrap{
    width:min(100%,calc((100dvh - 60px)/2));
  }
  .mini{
    min-height:36px;
    padding:4px 6px;
  }
  .mini strong{font-size:14px}
  .preview-stack .card{
    height:69px;
    padding:5px 4px;
  }
  .preview-stack .preview{height:49px}
  .mobile-utility button{
    height:34px;
    min-height:34px;
    font-size:9px;
  }
  .touch-panel button{
    height:44px;
    min-height:44px;
  }
}

@media(max-height:680px) and (max-width:760px){
  .shell{
    grid-template-columns:80px minmax(0,1fr);
    gap:5px;
  }
  .game-wrap{
    width:min(100%,calc((100dvh - 56px)/2));
  }
  .mobile-hud{gap:4px}
  .mini{
    min-height:32px;
    padding:3px 5px;
  }
  .mini span{font-size:6px}
  .mini strong{font-size:13px}
  .preview-stack{gap:4px}
  .preview-stack .card{
    height:61px;
    padding:4px;
  }
  .preview-stack .preview{height:43px}
  .mobile-utility{gap:4px}
  .mobile-utility button{
    height:31px;
    min-height:31px;
    font-size:8px;
  }
  .touch-panel button{
    height:40px;
    min-height:40px;
  }
}

@media(max-width:760px) and (orientation:landscape){
  .app{
    padding:5px max(7px,env(safe-area-inset-right))
      5px max(7px,env(safe-area-inset-left));
  }
  .shell{
    max-width:560px;
    grid-template-columns:76px minmax(0,1fr);
    grid-template-rows:minmax(0,1fr) auto;
    gap:5px 6px;
  }
  .game-wrap{
    width:min(100%,calc((100dvh - 52px)/2));
  }
  .mini{min-height:28px}
  .preview-stack .card{height:54px}
  .preview-stack .preview{height:37px}
  .mobile-utility button{height:28px;min-height:28px;font-size:8px}
  .touch-panel button{height:36px;min-height:36px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}