/* Game surface and game-specific controls only. */
.highlow-shell,.play-area,.card-table{
  overscroll-behavior:none;
  touch-action:manipulation;
}
.card,.number-card{
  touch-action:manipulation;
}
:root{--orb-size:clamp(34px,10vw,44px);}
[role=button]{-webkit-tap-highlight-color:transparent}
.tube:focus-visible{outline:3px solid #fff1b8;outline-offset:2px}
.premium-stage{position:relative;isolation:isolate;min-height:500px;overflow:hidden;border:1px solid #7b622f;border-radius:25px;padding:7px 5px 16px;background:linear-gradient(180deg,#111827dd,#06090fef),radial-gradient(circle at 50% 20%,#7891bd55,transparent 48%);box-shadow:inset 0 1px #fff3,inset 0 -40px 80px #0008,0 22px 60px #000b}
.premium-stage:before{content:"";position:absolute;z-index:-1;inset:0;background:repeating-linear-gradient(105deg,transparent 0 84px,#ffffff05 86px 87px,transparent 89px 170px),linear-gradient(90deg,#0007,transparent 13% 87%,#0007)}
.premium-stage:after{content:"";position:absolute;z-index:-1;right:8%;bottom:5px;left:8%;height:24px;border-radius:50%;background:#dcbf7244;filter:blur(16px)}
.stage-glow{position:absolute;z-index:-1;width:210px;height:210px;border-radius:50%;filter:blur(60px);opacity:.28}
.stage-glow-left{top:18%;left:-100px;background:#00d9ff}
.stage-glow-right{right:-110px;bottom:10%;background:#a84fff}
.board{position:relative;z-index:2;display:grid;grid-template-columns:repeat(var(--columns),minmax(0,1fr));align-content:center;gap:18px 2px;min-height:469px;padding:5px 1px 2px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.board.is-locked{pointer-events:none}
.tube-shelf{position:absolute;z-index:0;top:calc(var(--shelf-position) * 100% - 14px);right:.75%;left:.75%;height:20px;background:linear-gradient(180deg,transparent 0,#17120a12 18%,#39281738 62%,#120d087d 100%);clip-path:polygon(4% 0,96% 0,100% 100%,0 100%);pointer-events:none}
.tube-shelf:after{content:"";position:absolute;right:0;bottom:0;left:0;height:1px;background:linear-gradient(90deg,transparent,#8c6b37 10%,#e0bc6d 50%,#8c6b37 90%,transparent);box-shadow:0 2px 5px #000b,0 0 5px #d0a5572e}
.tube{position:relative;z-index:1;display:flex;width:100%;height:198px;min-width:0;align-items:flex-end;justify-content:center;border:0;padding:0;background:none;cursor:pointer;filter:drop-shadow(0 10px 10px #0009);transition:transform .2s}
.tube:before{content:"";position:absolute;z-index:0;bottom:1px;width:82%;height:14px;border:1px solid #82652f;border-radius:50%;background:linear-gradient(180deg,#9a7432 0,#453018 38%,#170f09 76%,#050403 100%);box-shadow:inset 0 2px #f5dc8c88,0 5px 0 #070503,0 10px 13px #000c}
.tube-art{position:absolute;z-index:3;inset:0;width:100%;height:100%;object-fit:contain;pointer-events:none;user-select:none;transition:filter .2s,transform .25s cubic-bezier(.2,.8,.2,1)}
.balls{position:absolute;z-index:2;right:20%;bottom:19px;left:20%;display:flex;height:calc(var(--capacity) * (var(--orb-size) - 3px));flex-direction:column-reverse;align-items:center;justify-content:flex-start;pointer-events:none}
.orb{position:relative;display:block;width:var(--orb-size);height:var(--orb-size);flex:0 0 var(--orb-size);margin-top:-3px;filter:drop-shadow(0 5px 4px #0008);transition:transform .23s cubic-bezier(.18,.82,.2,1.25),filter .2s,opacity .12s}
.orb img{display:block;width:100%;height:100%;object-fit:contain;filter:var(--colour-filter);user-select:none}
.orb:after{content:"";position:absolute;right:16%;bottom:7%;left:16%;height:12%;border-radius:50%;background:#001a;filter:blur(4px)}
.colour-0{--colour-filter:grayscale(1) sepia(1) saturate(6) hue-rotate(310deg) brightness(.95)}
.colour-1{--colour-filter:grayscale(1) sepia(1) saturate(5) hue-rotate(350deg) brightness(1.08)}
.colour-2{--colour-filter:grayscale(1) sepia(1) saturate(5.5) hue-rotate(24deg) brightness(1.14)}
.colour-3{--colour-filter:grayscale(1) sepia(1) saturate(5) hue-rotate(78deg) brightness(.96)}
.colour-4{--colour-filter:grayscale(1) sepia(1) saturate(5) hue-rotate(138deg) brightness(1.02)}
.colour-5{--colour-filter:grayscale(1) sepia(1) saturate(6) hue-rotate(184deg) brightness(.86)}
.colour-6{--colour-filter:grayscale(1) sepia(1) saturate(5.5) hue-rotate(232deg) brightness(.96)}
.colour-7{--colour-filter:grayscale(1) sepia(1) saturate(5) hue-rotate(282deg) brightness(1.06)}
.tube.is-selected .orb:last-child{z-index:2;transform:translateY(-15px) scale(1.05);filter:drop-shadow(0 0 12px #ffe18f)}
.tube.is-selected:after,.tube.can-receive:after{content:"";position:absolute;z-index:4;top:8px;width:42%;height:9px;border-radius:50%;border:2px solid #9df4ff;box-shadow:0 0 12px #39dbff,inset 0 0 8px #39dbff;animation:target-pulse 1.15s ease-in-out infinite}
.tube-number{position:absolute;z-index:5;bottom:-9px;display:grid;width:23px;height:23px;place-items:center;border:1px solid #80662f;border-radius:50%;background:#090c12;color:#d8c488;font:700 10px Arial,sans-serif;box-shadow:0 3px 8px #000}
.arrival-orb{transform-origin:center;transition:none!important;will-change:transform,opacity}
.move-sheen{position:absolute;z-index:0;right:4%;bottom:15px;left:4%;height:1px;background:linear-gradient(90deg,transparent,#efcf78aa,transparent);box-shadow:0 0 22px #efcf78}
.result-orbit{position:relative;display:grid;width:88px;height:88px;margin:6px auto 12px;place-items:center}
.result-orbit:before{content:"";position:absolute;inset:5px;border:1px solid #ffe29c;border-radius:50%;box-shadow:0 0 22px #ffd65d;animation:orbit 2.2s linear infinite}
.result-orbit img{width:70px;height:70px}
@keyframes target-pulse{50%{opacity:.5;transform:scale(.88)}}
@keyframes orbit{to{transform:rotate(360deg)}}
@media(min-width:700px){:root{--orb-size:48px;}
.premium-stage{min-height:540px}
.board{min-height:504px;gap:20px 8px;padding:10px 16px}
.tube{height:225px}
.balls{bottom:22px}
.tube-number{bottom:-7px}}
@media(min-width:900px) and (orientation:landscape){.premium-stage{min-height:430px}
.board{grid-template-columns:repeat(var(--tube-count),minmax(70px,1fr));min-height:399px;gap:8px}
.tube-shelf{display:none}
.tube{height:275px}
.balls{bottom:26px}}
@media(max-width:370px){:root{--orb-size:36px;}
.premium-stage{min-height:465px}
.board{gap:12px 0;min-height:439px}
.tube{height:181px}
.balls{bottom:17px}}
@media(orientation:landscape) and (max-height:700px){.premium-stage{min-height:330px}
.board{grid-template-columns:repeat(var(--tube-count),1fr);min-height:324px}
.tube{height:230px}}
.solution-stop{position:absolute;z-index:10;top:9px;right:9px;width:36px;height:36px;background:#080b11e8;box-shadow:inset 0 1px #fff2,0 5px 18px #000c}
.game-ad-secondary{flex-shrink:0}
.naval-stage{min-height:0!important;padding:14px 12px 18px;overflow:hidden;--sea-size:min(600px,calc(100svh - 390px));--coordinate-gutter:19px}
.sea-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;max-width:calc(var(--sea-size) + var(--coordinate-gutter));margin:0 auto 11px}
.sea-heading h2{margin:0;color:var(--gold-light);font:normal clamp(15px,3.7vw,22px) Georgia,serif}
.sea-heading>span{font-size:10px;color:#c1b89e;text-align:right;max-width:42%}
.computer-turn{color:#9be0e8!important}
.ocean-frame{position:relative;width:100%;max-width:calc(max(260px,var(--sea-size)) + var(--coordinate-gutter));margin:0 auto;padding-top:var(--coordinate-gutter);padding-left:var(--coordinate-gutter)}
.column-labels,.row-labels{position:absolute;display:grid;align-items:center;text-align:center;color:#d9c58e;font:700 10px Arial,sans-serif}
.column-labels{grid-template-columns:repeat(10,1fr);top:0;left:var(--coordinate-gutter);right:0;height:var(--coordinate-gutter)}
.row-labels{grid-template-rows:repeat(10,1fr);top:var(--coordinate-gutter);bottom:0;left:0;width:var(--coordinate-gutter)}
.ocean-board{position:relative;width:100%;aspect-ratio:1;border:2px solid #b59754;border-radius:13px;overflow:hidden;isolation:isolate;background:#05202a url('assets/ocean.webp') center/cover;box-shadow:0 0 0 4px #090c14,inset 0 0 24px #0008,0 13px 30px #000b;touch-action:manipulation;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.water-shimmer{position:absolute;z-index:0;inset:0 -40% -40% 0;pointer-events:none;background:radial-gradient(ellipse at 25% 35%,#8edfd52b,transparent 50%),linear-gradient(120deg,transparent 30%,#fcdf9733 45%,transparent 60%);background-size:100% 100%;mix-blend-mode:screen;animation:sea-light 14s ease-in-out infinite alternate}
.sea-cells{position:absolute;z-index:3;inset:0;display:grid;grid-template-columns:repeat(10,minmax(0,1fr));grid-template-rows:repeat(10,minmax(0,1fr))}
.sea-cell{position:relative;display:grid;place-items:center;min-width:0;min-height:0;border:0;border-right:1px solid #c8ead02a;border-bottom:1px solid #c8ead02a;padding:0;background:linear-gradient(135deg,#80e3e206,#031c2114);color:#e8ffff;font:700 clamp(12px,4vw,23px) Arial,sans-serif;cursor:crosshair;touch-action:manipulation;-webkit-tap-highlight-color:transparent;text-shadow:0 2px 4px #000}
.sea-cell:disabled{opacity:1}
.sea-cell:focus-visible{outline:2px solid #ffeda4;outline-offset:-3px;background:#d6b85625;z-index:4}
.sea-cell.is-hit{color:#ffd88e;background:radial-gradient(circle,#eb772f66,transparent 70%);text-shadow:0 0 9px #ff6223}
.sea-cell.is-sunk{color:#ffe5a0;background:#68361540}
.sea-cell.is-miss{color:#b7e2e9}
.sea-cell.is-water{color:#a4cfd57a}
.sea-cell.is-preview{background:#9dffb140;box-shadow:inset 0 0 0 1px #bcffcb}
.sea-cell.is-invalid{background:#ed734942}
.sea-cell[aria-disabled=true]{cursor:default}
.ships-layer{position:absolute;z-index:2;inset:0;pointer-events:none}
.fleet-ship{position:absolute;left:calc(var(--col)*10%);top:calc(var(--row)*10%);width:calc(var(--w)*10%);height:calc(var(--h)*10%);padding:3px;filter:drop-shadow(0 4px 2px #000b)}
.ship-visual{position:absolute;inset:3px}
.ship-visual img{display:block;width:100%;height:100%;object-fit:fill}
.fleet-ship.is-vertical .ship-visual{inset:auto;left:50%;top:50%;width:calc(100% * var(--length) - 6px);height:calc(100% / var(--length) - 6px);transform:translate(-50%,-50%) rotate(90deg)}
.fleet-ship.is-selected:after{content:'';position:absolute;inset:1px;border:1px solid #ffe49c;border-radius:8px;box-shadow:0 0 9px #efc97a55}
.fleet-ship.is-sunk .ship-visual{filter:brightness(.55) saturate(.4)}
.sea-tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;max-width:600px;margin:0 auto 12px}
.sea-tabs .secondary-button{min-width:0;font-size:12px;padding:8px}
.sea-tabs .is-active{border-color:var(--gold-light);background:#3b2b1355;box-shadow:inset 0 -2px #dcb86a}
.fleet-dock{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;max-width:620px;margin:16px auto 0}
.dock-ship{display:grid;grid-template-rows:25px auto auto;align-items:center;gap:4px;min-width:0;border:1px solid #645335;border-radius:9px;padding:7px 3px;background:linear-gradient(160deg,#14212d,#090d15);color:#e1d3af;cursor:pointer;font-size:9px}
.dock-ship img{width:100%;height:25px;object-fit:contain;filter:drop-shadow(0 2px 2px #000)}
.dock-ship span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dock-ship small{color:#b6d9d6;font-size:8px;letter-spacing:.05em}
.dock-ship.is-selected{border-color:#ffe199;background:#353020}
.dock-ship.is-sunk{border-color:#873d2b}
.dock-ship.is-sunk img{filter:brightness(.55) grayscale(.8)}
.dock-ship:focus-visible{outline:2px solid #ffe6a2;outline-offset:2px}
.placement-actions{display:grid;grid-template-columns:1fr 1.6fr 1fr;gap:7px;max-width:620px;margin:12px auto 0}
.placement-actions .secondary-button{min-width:0;font-size:11px;padding:8px 5px}
#start{max-width:620px;margin:12px auto 0;font-size:13px}
.battle-feedback{max-width:620px;margin:12px auto 0;color:#ded1b4;font-size:12px;line-height:1.5}
.battle-feedback p{margin:5px 0}
.battle-feedback p:last-child{color:#9cc5cd}
.round-status{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.shot-impact{position:absolute;z-index:5;left:calc(var(--col)*10%);top:calc(var(--row)*10%);width:10%;height:10%;pointer-events:none}
.shot-impact:before,.shot-impact:after{content:'';position:absolute;inset:30%;border-radius:50%}
.water-impact:before{border:2px solid #d9ffff;box-shadow:0 0 9px #84dfec;animation:splash-ring .8s ease-out forwards}
.water-impact:after{background:radial-gradient(circle,#e5ffff,#7adee7 35%,transparent 65%);animation:splash-core .55s ease-out forwards}
.fire-impact:before{background:radial-gradient(circle,#fff4b7 10%,#ffb238 30%,#da5327 55%,transparent 70%);filter:drop-shadow(0 0 8px #ffac45);animation:impact-burst .6s ease-out forwards}
.fire-impact:after{border:1px solid #ffdda0;animation:splash-ring .8s ease-out forwards}
.victory-ship{display:block;width:min(240px,85%);height:60px;object-fit:contain;margin:0 auto 14px}
@keyframes sea-light{from{transform:translate(0,0);opacity:.45}to{transform:translate(-28.5714286%,-28.5714286%);opacity:.9}}
@keyframes splash-ring{from{transform:scale(.5);opacity:1}to{transform:scale(3.6);opacity:0}}
@keyframes splash-core{from{transform:scale(.25);opacity:1}to{transform:scale(2.7);opacity:0}}
@keyframes impact-burst{0%{transform:scale(.15);opacity:1}45%{transform:scale(2.8);opacity:1}100%{transform:scale(3.3);opacity:0}}
@media(min-width:700px){.naval-stage{padding:20px 24px;--sea-size:min(650px,calc(100svh - 430px));--coordinate-gutter:24px}
.fleet-dock{gap:9px}
.dock-ship{grid-template-rows:35px auto auto;font-size:12px;padding:9px 5px}
.dock-ship img{height:35px}
.dock-ship small{font-size:10px}
.placement-actions .secondary-button{font-size:13px}
.sea-heading>span{font-size:12px}
.column-labels,.row-labels{font-size:12px}}
@media(orientation:landscape) and (max-height:800px){.naval-stage{--sea-size:max(260px,calc(100svh - 340px));padding-top:12px}
.fleet-dock{margin-top:12px}}
.reduced-motion .water-shimmer{animation:none}
.reduced-motion .shot-impact{display:none}
@media(prefers-reduced-motion:reduce){.water-shimmer{animation:none}
.shot-impact{display:none}}
.preview-capture .placement-actions{display:none}
.ocean-frame{padding:0;max-width:max(260px,var(--sea-size))}
.placement-actions{grid-template-columns:repeat(4,minmax(0,1fr))}
.fleet-picker{max-width:620px;margin:10px auto 0;border:1px solid #8b713e;border-radius:12px;padding:8px;background:linear-gradient(145deg,#172331,#080d16);box-shadow:0 8px 20px #0008}
.fleet-picker .fleet-dock{grid-template-columns:1fr;margin:0;gap:5px}
.fleet-picker .dock-ship{grid-template-columns:100px minmax(0,1fr) auto;grid-template-rows:1fr;gap:12px;min-height:48px;padding:8px 12px;font-size:12px;text-align:left}
.fleet-picker .dock-ship img{height:30px}
.fleet-picker .dock-ship small{font-size:10px}
#fleet-toggle[aria-expanded=true]{border-color:var(--gold-light);background:#352914}
.ocean-board.is-placing,.ocean-board.is-placing .sea-cell{touch-action:none;cursor:grab}
.fleet-ship.is-dragging{z-index:4;filter:drop-shadow(0 6px 4px #000b)}
.fleet-ship.is-invalid-drop:after{content:'';position:absolute;inset:1px;border:2px solid #f09168;border-radius:8px}
.naval-stage{border:0;border-radius:0;padding:0 0 12px;background:none;box-shadow:none}
.naval-stage:before,.naval-stage:after,.naval-stage .stage-glow{display:none}
.ocean-frame{max-width:100%;padding:0}
.ocean-board{box-shadow:inset 0 0 24px #0008}
.ocean-board.player-turn{border-color:#66eb8a;box-shadow:inset 0 0 24px #0008,0 0 8px #46d66b55}
.ocean-board.computer-turn{border-color:#ff6262;box-shadow:inset 0 0 24px #0008,0 0 8px #f0444455}
.fleet-ship.is-selected:after,.fleet-ship.is-invalid-drop:after{display:none}
.fleet-ship.is-selected .ship-visual{filter:drop-shadow(0 0 3px #ffe69c) drop-shadow(0 0 6px #efc97a)}
.fleet-ship.is-invalid-drop .ship-visual{filter:drop-shadow(0 0 5px #ff7957)}
.ocean-board.is-placing .sea-cell:hover{outline:0;background:linear-gradient(135deg,#80e3e206,#031c2114)}
#turn-feedback{color:#e4d7b7;font-weight:700}
.placement-actions{grid-template-columns:repeat(2,minmax(0,1fr))}
@media (hover:hover) and (pointer:fine){.sea-cell:hover:not([aria-disabled=true]){outline:2px solid #ffeda4;outline-offset:-3px;background:#d6b85625;z-index:4}
.ocean-board.is-placing .sea-cell:hover{outline:0;background:linear-gradient(135deg,#80e3e206,#031c2114)}}
.sea-tabs{grid-template-columns:minmax(0,1fr) clamp(60px,15vw,90px) minmax(0,1fr);align-items:center;max-width:620px;gap:8px}
.shots-remaining{display:block;text-align:center;font:800 clamp(40px,9vw,56px)/1.1 Arial,sans-serif;font-variant-numeric:tabular-nums;user-select:none;padding:2px 0}
.shots-remaining.is-player{color:#78f39a;text-shadow:0 0 18px #45d87944}
.shots-remaining.is-computer{color:#ff7c7c;text-shadow:0 0 18px #fa4d4d44}
.shots-remaining{display:flex;align-items:center;justify-content:center;min-height:48px;padding:2px 0;font:400 clamp(34px,8vw,44px)/1.1 Arial,Helvetica,sans-serif;font-variant-numeric:tabular-nums;animation:shot-number-breathe 2.4s ease-in-out infinite}
.shots-remaining.is-player{color:#a1ffbb;text-shadow:0 0 5px #7cf6a0bb,0 0 14px #4ce98299,0 0 26px #41cc6d55}
.shots-remaining.is-computer{color:#ffaaaa;text-shadow:0 0 5px #ff8a8abb,0 0 14px #f96b6b99,0 0 26px #e44c4c55}
@keyframes shot-number-breathe{0%,100%{opacity:.82}50%{opacity:1}}
.reduced-motion .shots-remaining{animation:none}
@media(prefers-reduced-motion:reduce){.shots-remaining{animation:none}}
body.has-game-anchor{--fleet-anchor-reserve:62px}
body:has(.game-ad-secondary:not([hidden])){--fleet-banner-reserve:122px}
@media(min-width:600px){.ocean-frame{max-width:min(100%,max(200px,calc(100svh - 260px - var(--fleet-anchor-reserve) - var(--fleet-banner-reserve) - env(safe-area-inset-top) - env(safe-area-inset-bottom))))}}
@media(min-width:1024px),(orientation:landscape) and (max-height:540px){body.has-game-anchor{--fleet-anchor-reserve:0px}}
.preview-capture .ocean-frame{max-width:100%}
@media(min-width:600px){body:has(#demo-bar:not([hidden])) .ocean-frame{max-width:min(100%,max(200px,calc(100svh - 320px - var(--fleet-anchor-reserve) - var(--fleet-banner-reserve) - env(safe-area-inset-top) - env(safe-area-inset-bottom))))}}