:root{--bg:#090b0e;--s1:#11151a;--s2:#181d23;--steel:#2a3139;--text:#f2f4f6;--muted:#9ca6b2;--orange:#ff7a18;--hot:#ff9a3c;--danger:#e05a4f;--success:#4fa66b;--warning:#d29a43;--cyan:#59b9c9;--shadow:0 18px 55px rgba(0,0,0,.55)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(circle at 50% -10%,#222a31 0,#0d1014 36%,#07090b 75%);color:var(--text);font-family:Inter,Segoe UI,Arial,sans-serif}body{min-height:100vh;overflow-x:hidden}button{font:inherit}.app{width:min(1180px,100%);margin:auto;padding:14px}.topbar{display:flex;align-items:center;gap:14px;padding:10px 12px;background:linear-gradient(180deg,rgba(29,35,42,.96),rgba(13,16,20,.96));border:1px solid #313942;border-radius:14px;box-shadow:var(--shadow);position:relative;z-index:3}.brand{display:flex;align-items:center;gap:12px;min-width:0}.brand img{height:38px;width:auto;max-width:190px;object-fit:contain}.brand-title{font-weight:800;letter-spacing:.04em;white-space:nowrap}.brand-title span{color:var(--orange)}.spacer{flex:1}.icon-btn,.text-btn{border:1px solid #3a444e;background:#161b20;color:var(--text);border-radius:10px;min-height:40px;padding:8px 12px;cursor:pointer;box-shadow:inset 0 1px rgba(255,255,255,.04)}.icon-btn:hover,.text-btn:hover{border-color:var(--orange);color:#fff}.icon-btn:focus-visible,.text-btn:focus-visible,.control:focus-visible{outline:2px solid var(--hot);outline-offset:2px}.lang{display:flex;border:1px solid #39424b;border-radius:10px;overflow:hidden}.lang button{border:0;background:#14191e;color:var(--muted);padding:9px 11px;cursor:pointer}.lang button.active{background:var(--orange);color:#111;font-weight:900}
.hud{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin:10px 0}.stat{background:linear-gradient(180deg,#171c22,#101419);border:1px solid #303943;border-radius:11px;padding:8px 10px;min-width:0}.stat-label{font-size:.69rem;color:var(--muted);text-transform:uppercase;letter-spacing:.12em}.stat-value{font-size:1.1rem;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.stat-value.orange{color:var(--orange)}
.game-shell{position:relative;background:#050607;border:1px solid #333c45;border-radius:16px;padding:10px;box-shadow:var(--shadow),inset 0 0 80px rgba(255,122,24,.04)}.canvas-wrap{position:relative;aspect-ratio:16/9;max-height:calc(100vh - 235px);min-height:320px;margin:auto;overflow:hidden;border-radius:10px;background:#060708;border:1px solid #252c33}.canvas-wrap:before{content:"";position:absolute;inset:0;pointer-events:none;z-index:2;background:linear-gradient(180deg,rgba(255,255,255,.025),transparent 15%),repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,255,255,.012) 4px);mix-blend-mode:screen}canvas{display:block;width:100%;height:100%;image-rendering:auto}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:4;background:rgba(4,5,6,.72);backdrop-filter:blur(4px);padding:20px}.overlay.hidden{display:none}.panel{max-width:630px;width:100%;background:linear-gradient(180deg,#1a2026,#0f1317);border:1px solid #3b454f;border-radius:16px;padding:20px;box-shadow:0 22px 60px #000}.panel h1,.panel h2{margin:.1em 0 .4em}.panel h1{font-size:clamp(1.7rem,4vw,3rem);line-height:1}.panel h1 span{color:var(--orange)}.panel p{color:#cbd2d8;line-height:1.5}.start-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.primary{border:1px solid #ff9a3c;background:linear-gradient(180deg,#ff8f31,#e76208);color:#111;font-weight:900;border-radius:10px;padding:12px 18px;cursor:pointer;box-shadow:0 7px 22px rgba(255,122,24,.25)}.secondary{border:1px solid #46515c;background:#171c21;color:#eef2f4;font-weight:700;border-radius:10px;padding:12px 18px;cursor:pointer}.tips{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}.tip{border:1px solid #303943;background:#11161a;border-radius:10px;padding:10px;font-size:.83rem;color:#b9c2ca}.tip b{display:block;color:#fff;margin-bottom:3px}.footerline{display:flex;justify-content:space-between;gap:10px;margin-top:9px;color:#7f8a94;font-size:.74rem}.zx81 .game-shell,.zx81 .topbar,.zx81 .stat{filter:grayscale(1);}.zx81 canvas{image-rendering:pixelated}.zx81 .canvas-wrap:before{background:repeating-linear-gradient(0deg,rgba(255,255,255,.03) 0 1px,transparent 1px 4px)}
.mobile-controls{display:none;grid-template-columns:1fr 1fr 1.1fr;gap:10px;margin-top:10px}.control{min-height:58px;border-radius:12px;border:1px solid #3a444d;background:linear-gradient(180deg,#1c2228,#11161a);color:#fff;font-size:1.35rem;font-weight:900;touch-action:none;user-select:none}.control.jump{border-color:#91501e;color:var(--hot)}
.modal{position:fixed;inset:0;z-index:20;background:rgba(0,0,0,.75);display:grid;place-items:center;padding:20px}.modal.hidden{display:none}.modal-card{width:min(650px,100%);max-height:80vh;overflow:auto;background:#12171c;border:1px solid #3b454e;border-radius:16px;box-shadow:var(--shadow);padding:18px}.modal-head{display:flex;align-items:center;gap:12px}.modal-head img{width:42px;height:42px}.modal-head h2{margin:0}.modal-card h3{color:var(--orange);margin-bottom:.3em}.modal-card p,.modal-card li{color:#c2cbd2;line-height:1.5}.close{margin-left:auto}.kbd{display:inline-block;padding:2px 7px;border:1px solid #56616a;border-bottom-width:3px;border-radius:5px;background:#20262c;color:#fff;font-size:.85em}
@media(max-width:760px){.app{padding:6px}.topbar{gap:6px;padding:8px}.brand img{height:29px}.brand-title{font-size:.85rem}.text-btn{padding:7px 8px}.hud{grid-template-columns:repeat(3,1fr)}.hud .stat:nth-child(4),.hud .stat:nth-child(5),.hud .stat:nth-child(6){display:none}.canvas-wrap{min-height:260px;max-height:none}.mobile-controls{display:grid}.footerline{font-size:.66rem}.tips{grid-template-columns:1fr}.panel{padding:15px}}
@media(pointer:coarse){.mobile-controls{display:grid}}

.dev-panel{position:fixed;right:14px;bottom:14px;z-index:30;width:min(430px,calc(100vw - 28px));background:linear-gradient(180deg,#1a2026,#0c1014);border:1px solid #ff7a18;border-radius:14px;box-shadow:0 24px 70px #000;padding:12px}.dev-panel.hidden{display:none}.dev-head{display:flex;align-items:center;gap:10px;margin-bottom:10px;color:#ff9a3c;letter-spacing:.08em}.dev-head span{font-size:.68rem;color:#111;background:#ff7a18;border-radius:999px;padding:3px 7px;font-weight:900}.dev-close{margin-left:auto;border:0;background:transparent;color:#fff;font-size:1.25rem;cursor:pointer}.dev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.dev-grid button{border:1px solid #46515c;background:#151b20;color:#e9eef2;border-radius:8px;padding:9px 7px;cursor:pointer;font-weight:700}.dev-grid button:hover,.dev-grid button.active{border-color:#ff7a18;color:#fff;background:#24201b}.dev-note{margin-top:9px;font-size:.74rem;color:#9aa5ae}.dev-watermark{position:absolute;left:12px;bottom:10px;z-index:3;font:900 13px/1 monospace;letter-spacing:.12em;color:#ff7a18;pointer-events:none}.mine-banner{position:absolute;left:50%;top:16px;transform:translateX(-50%);z-index:3;background:rgba(7,9,11,.88);border:1px solid #75401b;border-radius:9px;padding:6px 12px;color:#f4f1ec;font-size:.78rem;letter-spacing:.08em;pointer-events:none}.mine-banner b{color:#ff8a2a}.hitbox-note{color:#5edcff}
@media(max-width:760px){.dev-grid{grid-template-columns:repeat(2,1fr)}}

/* BUILD 0011 · Forge Game Launch & Presentation Standard */
.startup-splash{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;overflow:hidden;background:#020304;animation:startupFailSafe .55s 4s forwards}
.startup-backdrop{position:absolute;inset:-2%;background:linear-gradient(90deg,rgba(2,3,4,.10) 0%,rgba(2,3,4,.18) 46%,rgba(2,3,4,.72) 70%,rgba(2,3,4,.94) 100%),linear-gradient(180deg,rgba(2,3,4,.06),rgba(2,3,4,.64)),url('../artwork/forty-niner-launch-0011.png') center/cover no-repeat;filter:brightness(.72) saturate(.88) contrast(1.06);transform:scale(1.04);animation:startupDrift 4s ease-out forwards}
.startup-splash:before{content:"";position:absolute;inset:0;z-index:1;background:radial-gradient(circle at 76% 48%,rgba(255,122,24,.10),transparent 34%),repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,232,205,.025) 4px 4px);box-shadow:inset 0 0 160px #000}
.startup-content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;width:min(470px,82vw);margin-left:min(43vw,660px);animation:startupArrive .85s cubic-bezier(.2,.8,.2,1) both}
.startup-content img{width:clamp(150px,22vw,250px);aspect-ratio:1;object-fit:cover;mix-blend-mode:screen;filter:drop-shadow(0 15px 35px #000) drop-shadow(0 0 24px rgba(255,122,24,.14))}
.startup-divider{width:min(310px,68vw);height:2px;margin:8px 0 18px;background:linear-gradient(90deg,transparent,var(--orange) 18% 82%,transparent);box-shadow:0 0 18px rgba(255,122,24,.47);transform:skew(-28deg)}
.startup-content strong{font-size:clamp(22px,4vw,42px);letter-spacing:.28em;margin-right:-.28em;color:#f4f5f5;text-shadow:0 4px 18px #000;line-height:1}
.startup-signal{position:relative;width:min(260px,58vw);height:1px;margin-top:32px;background:rgba(255,154,60,.16);overflow:visible}.startup-signal i{position:absolute;width:34%;height:2px;top:-1px;left:0;background:linear-gradient(90deg,transparent,var(--orange),#fff,transparent);box-shadow:0 0 14px var(--orange);animation:startupScan 1.15s ease-in-out infinite}
.startup-splash.is-hiding{animation:startupExit .65s ease forwards}.startup-splash.is-hiding .startup-content{animation:startupContentExit .45s ease forwards}
@keyframes startupArrive{from{opacity:0;transform:scale(.92) translateY(12px);filter:blur(8px)}to{opacity:1;transform:none;filter:none}}@keyframes startupDrift{to{transform:scale(1)}}@keyframes startupScan{from{transform:translateX(-70%);opacity:0}20%{opacity:1}to{transform:translateX(265%);opacity:0}}@keyframes startupExit{to{opacity:0;visibility:hidden;pointer-events:none}}@keyframes startupContentExit{to{opacity:0;transform:scale(1.04)}}@keyframes startupFailSafe{to{opacity:0;visibility:hidden;pointer-events:none}}
.launch-screen{position:fixed;inset:0;z-index:100;overflow:hidden;background:#050607;transition:opacity .38s ease,visibility .38s ease}
.launch-screen.is-leaving{opacity:0;visibility:hidden;pointer-events:none}
.launch-bg{position:absolute;inset:0;background:url('../artwork/forty-niner-launch-0011.png') center center/cover no-repeat;filter:brightness(.76) saturate(.92) contrast(1.06);transform:scale(1.015)}
.launch-shade{position:absolute;inset:0;pointer-events:none;background:
  linear-gradient(0deg,rgba(2,3,4,.76) 0%,rgba(2,3,4,.16) 28%,rgba(2,3,4,0) 54%),
  linear-gradient(90deg,rgba(2,3,4,.04) 0%,rgba(2,3,4,.12) 48%,rgba(2,3,4,.88) 72%,rgba(2,3,4,.96) 100%);
}
.launch-content{position:relative;z-index:2;width:min(500px,42vw);height:100%;margin-left:auto;display:flex;flex-direction:column;justify-content:center;align-items:stretch;padding:clamp(24px,4vw,58px)}
.launch-identity{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:24px}.launch-identity img{width:clamp(118px,14vw,190px);aspect-ratio:1;object-fit:cover;mix-blend-mode:screen;filter:drop-shadow(0 12px 30px #000)}.launch-identity span{width:100%;padding-top:15px;border-top:2px solid var(--orange);font-size:clamp(22px,3vw,38px);font-weight:900;letter-spacing:.18em;margin-right:-.18em;text-shadow:0 5px 18px #000}.launch-identity small{margin-top:10px;color:#c6cbd0;letter-spacing:.08em}
.launch-controls{display:flex;flex-direction:column;gap:10px;padding:14px;border:1px solid rgba(255,255,255,.11);border-radius:14px;background:linear-gradient(180deg,rgba(10,12,14,.72),rgba(6,8,10,.58));box-shadow:0 14px 42px rgba(0,0,0,.42);backdrop-filter:blur(8px)}
.launch-actions{display:flex;gap:10px;flex-wrap:wrap;margin:0}
.launch-primary,.launch-continue{min-width:190px;min-height:50px;letter-spacing:.05em}
.launch-tools{display:flex;gap:8px;align-items:center;margin:0}
.launch-foot{width:100%;margin-top:12px;display:flex;justify-content:flex-end;color:#c0c6cc;font-size:.72rem;letter-spacing:.05em;text-shadow:0 2px 8px #000}
.launch-screen .hidden{display:none!important}
.launch-lang button{min-width:44px}
.launch-screen button{backdrop-filter:blur(8px)}
@media(max-width:760px){
  .startup-backdrop{background-position:34% center;filter:brightness(.52) saturate(.82)}.startup-content{margin-left:0}.startup-splash:before{background:radial-gradient(circle at center,rgba(255,122,24,.08),transparent 38%),linear-gradient(rgba(2,3,4,.58),rgba(2,3,4,.82)),repeating-linear-gradient(0deg,transparent 0 3px,rgba(255,232,205,.025) 4px 4px)}
  .launch-bg{background-position:34% center;filter:brightness(.55) saturate(.88)}
  .launch-shade{background:linear-gradient(0deg,rgba(2,3,4,.86) 0%,rgba(2,3,4,.28) 34%,rgba(2,3,4,0) 62%)}
  .launch-content{width:100%;justify-content:flex-end;padding:12px}.launch-identity{margin-bottom:12px}.launch-identity img{width:100px}.launch-identity span{font-size:22px;padding-top:8px}.launch-identity small{margin-top:6px}
  .launch-controls{width:100%;padding:11px}
  .launch-actions{display:grid;grid-template-columns:1fr;width:100%}
  .launch-primary,.launch-continue{width:100%;min-width:0}
  .launch-foot{font-size:.64rem;flex-direction:column;gap:4px}
}
@media(max-height:620px) and (min-width:761px){.launch-identity{margin-bottom:12px}.launch-identity img{width:105px}.launch-identity span{font-size:24px;padding-top:8px}.launch-controls{padding:10px}.launch-primary,.launch-continue{min-height:44px}.launch-foot{margin-top:7px}.startup-content img{width:120px}.startup-divider{margin:4px 0 12px}.startup-signal{margin-top:20px}}
@media(prefers-reduced-motion:reduce){.startup-splash{animation:startupFailSafe .01ms 1.2s forwards}.startup-content,.startup-backdrop,.startup-signal i{animation:none}.startup-splash.is-hiding{animation:startupExit .01ms forwards}.launch-screen{transition:none}}