/* v5.7 interactive original block placement arcade / accessible tap or drag */
body[data-screen=sky]{background:#0b0f25}body[data-screen=sky] main{width:min(100%,1180px);padding:8px 10px calc(95px + env(safe-area-inset-bottom))}
#screenSky{max-width:100%;margin:0 auto}
.vb-app{color:#f6f5ff;border:1px solid #7478c09e;border-radius:24px;overflow:hidden;background:linear-gradient(125deg,#171936,#0d1937);box-shadow:0 15px 50px #0007}
.vb-hero{padding:20px 23px 15px;background:radial-gradient(circle at 75% 20%,#6e51b877,transparent 40%),linear-gradient(105deg,#152751,#272041)}.vb-overline{color:#9af4e5;font-size:10px;font-weight:900;letter-spacing:.14em}.vb-title-row{display:flex;justify-content:space-between;gap:12px;align-items:center}.vb-title-row h1{font-size:clamp(20px,3.2vw,34px);letter-spacing:-.055em;line-height:1.2;margin:7px 0}.vb-title-row h1 span{display:block;color:#ffe2a1;text-shadow:0 0 14px #edbe6570}.vb-title-row p{font-size:12px;color:#d6daec;line-height:1.6;margin:3px 0}.vb-mascot{background:linear-gradient(140deg,#474186,#2a4563);font-size:42px;min-width:80px;height:81px;display:grid;place-content:center;border:1px solid #a8b8eb;border-radius:21px;text-align:center}.vb-mascot small{font-size:10px;color:#e5e0ff}
.vb-dashboard{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;padding:11px 15px;background:#121c39}.vb-dashboard>div{padding:9px 11px;background:linear-gradient(120deg,#2b2d5b,#26354f);border:1px solid #6a75a9;border-radius:12px;display:grid;gap:4px}.vb-dashboard small{font-size:10px;color:#c1cbe7}.vb-dashboard strong{color:#fff3a7;font-size:clamp(18px,3vw,26px);font-variant-numeric:tabular-nums}
.vb-game{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);gap:15px;align-items:start;padding:15px;background:radial-gradient(circle at 15% 20%,#343f8060,transparent 50%),#101832}
.vb-grid-wrap{min-width:0}.vb-board-frame{position:relative;width:min(100%,520px);margin:auto;aspect-ratio:1;background:#07172f;border:7px solid #5267a1;border-radius:17px;padding:5px;box-shadow:0 10px 24px #0008,inset 0 0 0 2px #8eaeff;overflow:hidden}.vb-board{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));gap:3px;width:100%;height:100%}.vb-cell{border:1px solid #354a75;background:#182b4a;border-radius:5px;min-width:0;padding:0;position:relative;touch-action:manipulation}.vb-cell.filled{background:linear-gradient(145deg,#ffffff80,var(--block) 25%,var(--block) 72%,#0e2843);border-color:#ffffff70;box-shadow:inset -3px -4px #0004,inset 2px 2px #fff6,0 2px 4px #0004}.vb-cell.ghost-valid:after{content:"";position:absolute;inset:0;border:2px solid #d4ffba;border-radius:4px;background:#a7ff7a8a}.vb-cell.ghost-bad:after{content:"×";position:absolute;inset:0;display:grid;place-items:center;color:#fff;background:#f449728a;font-weight:1000}.vb-cell:focus-visible{outline:3px solid #fcf5b4;z-index:2}.vb-grid-help{text-align:center;font-size:11px;color:#c2cfeb;margin:9px auto 0;max-width:470px;line-height:1.5}
.vb-workbench{background:linear-gradient(135deg,#272a57,#1b2f4c);border:1px solid #7e8cc386;border-radius:18px;padding:13px;min-width:0}.vb-worktop{display:flex;justify-content:space-between;gap:7px;align-items:center;font-size:12px;color:#e5ecff;font-weight:900}.vb-worktop span:last-child{font-size:10px;color:#a7f4e0}.vb-tray{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;margin:13px 0}.vb-piece{position:relative;border:2px solid #6979ac;border-bottom:5px solid #36426c;border-radius:14px;background:linear-gradient(165deg,#293764,#1b2849);min-height:120px;display:flex;align-items:center;justify-content:center;gap:7px;flex-direction:column;padding:7px 4px;color:#f3f6ff;touch-action:none;cursor:grab}.vb-piece.active{border-color:#ffec99;background:linear-gradient(150deg,#4c497d,#283d60);box-shadow:0 0 0 3px #ffe69a36,0 7px 23px #f8cb7e44;transform:translateY(-2px)}.vb-piece.used{opacity:.28;cursor:default}.vb-piece:focus-visible{outline:3px solid #fff}.vb-piece small{font-size:9px;line-height:1.2;max-width:100%;color:#dce7f7}.vb-mini{display:grid;gap:2px;width:max-content;max-width:100%;height:max-content;min-height:30px}.vb-mini>span{width:clamp(12px,2.6vw,24px);height:clamp(12px,2.6vw,24px);border-radius:4px}.vb-mini>span.piece-filled{background:var(--block);border:1px solid #fff7;box-shadow:inset -3px -3px #0003,inset 2px 2px #fff9}.vb-tools{display:flex;gap:7px;flex-wrap:wrap}.vb-tools button,.vb-bottom button{border:1px solid #a3b6eb;border-bottom:4px solid #304e78;background:linear-gradient(#466b92,#284664);color:#fff;border-radius:11px;padding:10px 12px;min-height:44px;font-size:12px;font-weight:900;flex:1}.vb-tools button:disabled{opacity:.35}.vb-tools button:active,.vb-bottom button:active{transform:translateY(2px)}.vb-status{background:#152443;border:1px solid #728bba;border-radius:11px;color:#ffe6ab;padding:13px;font-size:13px;line-height:1.55;min-height:70px;margin:12px 0 9px}.vb-subtext{color:#b9c8df;font-size:10px;line-height:1.55}.vb-bottom{padding:12px 15px;display:flex;justify-content:space-between;align-items:center;gap:8px;background:#192044}.vb-summary{font-size:11px;color:#cfdaf1}.vb-summary b{color:#ffe4a4}.vb-bottom button{flex:0 0 auto}.vb-celebrate{position:absolute;inset:25% 3% auto;pointer-events:none;text-align:center;font-size:clamp(21px,4vw,32px);font-weight:1000;color:#fff4ae;text-shadow:0 3px 12px #000,0 0 20px #f6be5d;opacity:0}.vb-celebrate.go{animation:vb-pop 1s ease-out}@keyframes vb-pop{0%{opacity:0;transform:translateY(28px) scale(.85)}25%{opacity:1;transform:translateY(0) scale(1.1)}75%{opacity:1}100%{opacity:0;transform:translateY(-23px)}}
.vb-dialog{position:fixed;inset:0;z-index:210;background:#05081ac9;display:grid;place-items:center;padding:15px;backdrop-filter:blur(9px)}.vb-dialog[hidden]{display:none!important}.vb-modal{text-align:center;width:min(490px,100%);max-height:90dvh;overflow:auto;border-radius:23px;border:2px solid #d4c188;background:radial-gradient(ellipse at 50% 0,#544b98aa,transparent 65%),#182344;box-shadow:0 30px 80px #0009;padding:25px 23px}.vb-modal-stamp{letter-spacing:.12em;color:#f0df9a;font-size:10px;font-weight:1000}.vb-modal-emoji{font-size:52px}.vb-modal h2{font-size:clamp(22px,4vw,31px);margin:5px 0 12px}.vb-modal p{font-size:14px;color:#dbe2f7;line-height:1.8}.vb-dialog-stats{margin:14px 0;background:#101a35;padding:12px;border-radius:13px;border:1px solid #8c94bb;color:#ffdfaa;font-size:13px}.vb-modal button{display:block;width:100%;margin:8px auto;min-height:46px;border:1px solid #fef4ac;border-radius:12px;background:linear-gradient(#fff0ad,#f3b450);color:#333044;font-weight:1000}.vb-modal button.vb-secondary{background:#293859;color:#e5ebff;border-color:#6f84af}
@media(max-width:800px){.vb-game{grid-template-columns:1fr}.vb-board-frame{width:min(100%,480px)}.vb-workbench{max-width:530px;width:100%;margin:auto}.vb-piece{min-height:88px}.vb-mini>span{width:clamp(13px,4vw,22px);height:clamp(13px,4vw,22px)}}
@media(max-width:500px){body[data-screen=sky] main{padding:5px 6px calc(89px + env(safe-area-inset-bottom))}.vb-app{border-radius:15px}.vb-hero{padding:13px 13px 11px}.vb-overline{font-size:8px}.vb-title-row h1{font-size:22px}.vb-title-row h1 span{font-size:22px}.vb-title-row p{font-size:11px}.vb-mascot{min-width:53px;height:66px;font-size:26px;border-radius:13px}.vb-mascot small{font-size:8px}.vb-dashboard{gap:4px;padding:7px}.vb-dashboard>div{padding:7px 6px;border-radius:8px}.vb-dashboard small{font-size:9px}.vb-dashboard strong{font-size:17px}.vb-game{gap:9px;padding:9px}.vb-board-frame{border-width:5px;padding:4px;border-radius:12px}.vb-board{gap:2px}.vb-cell{border-radius:3px}.vb-workbench{padding:10px}.vb-tray{margin:9px 0}.vb-piece{min-height:86px}.vb-tools button{font-size:11px;padding:9px 6px}.vb-bottom{padding:8px 10px}.vb-summary{font-size:10px}.vb-grid-help{font-size:10px}}
@media(prefers-reduced-motion:reduce){.vb-celebrate.go{animation:none;opacity:1}.vb-piece{transition:none}}

/* compact but still touch-friendly mobile play area */
@media(max-width:500px){.vb-board-frame{width:min(100%,320px)}.vb-hero{padding:9px 12px 8px}.vb-title-row h1{font-size:21px;margin:3px 0}.vb-title-row h1 span{font-size:21px}.vb-title-row p{font-size:10px;line-height:1.3}.vb-dashboard{padding:5px 7px}.vb-dashboard>div{padding:5px 7px}.vb-game{padding:7px}.vb-piece{min-height:77px}.vb-status{padding:9px;min-height:48px;margin:8px 0}}