:root{--body:#727a76;--body-dark:#4a514d;--edge:#a9afaa;--red:#f21e3d;--red-deep:#7b1025;--off:#5d626f;--yellow:#f2b72e;--ink:#202622;--cream:#e5e6de}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:#3998c8}body{font-family:'Space Mono',monospace;color:var(--ink);overflow-x:hidden}
.noise{position:fixed;inset:0;z-index:5;pointer-events:none;opacity:.08;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.shell{position:relative;width:100%;min-height:100dvh;padding:max(12px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));background:linear-gradient(112deg,#656d68,#919791 22%,#707873 53%,#969b95 77%,#626965);border:3px solid #4c534f;border-radius:28px 28px 25px 25px;box-shadow:inset 0 0 0 2px #c0c4bd,inset 0 0 35px #414844,0 14px 35px #145c79;overflow:hidden}
.shell:after{content:'';position:absolute;inset:0;pointer-events:none;opacity:.22;background:linear-gradient(90deg,transparent 0 12%,#dce0d9 13%,transparent 14% 70%,#3b413e 71%,transparent 72%);mix-blend-mode:overlay}
.topbar{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;height:34px;border:0;padding:0 4px}.brand{display:flex;align-items:center;gap:7px;color:var(--cream);text-decoration:none;font:700 17px/14px 'Barlow Condensed',sans-serif;letter-spacing:.13em;text-shadow:1px 1px #3c433f}.brand b{color:var(--yellow)}.brand-mark{color:var(--yellow);font-size:22px;text-shadow:0 1px #594817}.header-status{display:none}.icon-button{color:var(--ink);font:700 13px 'Space Mono';background:transparent;border:0;cursor:pointer;text-shadow:0 1px #adb3ad}
.hero{position:relative;z-index:1;padding:14px 5px 16px}.kicker{color:#3f4743;font-size:8px;letter-spacing:.16em;font-weight:700}.hero h1{margin:7px 0 8px;font:800 47px/.82 'Barlow Condensed',sans-serif;letter-spacing:.02em;color:var(--cream);text-shadow:1px 2px #46504b}.hero h1 em{color:var(--red);font-style:normal;text-shadow:1px 2px #681225}.lede{margin:0;max-width:350px;color:#39423d;font-size:9px;line-height:1.55}
.game-layout{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:14px}.left-panel{display:none}.board-wrap{width:100%}.board-meta{display:flex;justify-content:space-between;margin:0 5px 7px;color:#3f4743;font-size:8px;font-weight:700;letter-spacing:.15em}.board-meta span:last-child{color:var(--red-deep)}.board-frame{position:relative;padding:7px;background:linear-gradient(100deg,#4e5652,#a6aba4 20%,#707873 50%,#a7aca5 84%,#4c544f);border:2px solid #4a514d;border-radius:11px;box-shadow:inset 0 1px #d1d4cd,0 5px 7px #3f4642}.board{display:grid;grid-template-columns:repeat(5,1fr);gap:7px}.cell{position:relative;aspect-ratio:1;border:2px solid #363b3a;border-radius:3px;background:linear-gradient(145deg,#777d8b,#4d5260);cursor:pointer;box-shadow:inset 0 2px 4px #a7abb4,0 3px 3px #3b403e;transition:transform .1s,filter .12s}.cell:after{content:'';position:absolute;inset:28%;border-radius:50%;background:#8c90a0;opacity:.42}.cell.on{background:linear-gradient(145deg,#ff3850,#c9002c 65%,#8a0a22);border-color:#6d1423;box-shadow:inset 0 2px 4px #ff8390,0 0 14px #ed1c3c,0 3px 3px #3b403e}.cell.on:after{background:#ffe0b1;opacity:.9;box-shadow:0 0 8px 3px #ffd0a0}.cell:active{transform:translateY(2px);filter:brightness(.9)}.cell:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}.scanline{display:none}.board-hint{margin:8px 4px 0;color:#3d4641;font-size:8px;letter-spacing:.08em}.level-continue{display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px;margin-top:9px;padding:7px 8px;border-radius:7px;background:rgba(48,55,51,.35);color:var(--cream);font:700 8px 'Space Mono'}.level-continue[hidden]{display:none}.level-continue .primary-button{min-height:32px;padding:6px 12px;width:auto}.pulse{display:inline-block;width:6px;height:6px;margin-right:7px;border-radius:50%;background:var(--red);box-shadow:0 0 7px var(--red)}
.right-panel{display:grid;grid-template-columns:1fr 1fr;gap:9px}.stat{display:flex;align-items:center;justify-content:space-between;padding:6px 9px;background:rgba(48,55,51,.26);border-radius:4px;color:#35403a;font-size:8px;font-weight:700}.stat strong{color:var(--red-deep);font:800 24px 'Barlow Condensed'}.right-panel .rule,.right-panel .tip{display:none}.primary-button,.secondary-button{min-height:40px;width:100%;padding:8px;border:2px solid #714b0b;border-radius:22px;color:#49340a;background:linear-gradient(#ffd764,#e7a812);font:700 9px 'Space Mono';letter-spacing:.04em;cursor:pointer;box-shadow:inset 0 2px 3px #fff0a2,0 3px 3px #474d48}.secondary-button{color:#e8e8df;background:linear-gradient(#5f6662,#3f4743);border-color:#303735;box-shadow:inset 0 2px 3px #9da39d,0 3px 3px #424743}.primary-button:active,.secondary-button:active{transform:translateY(2px);box-shadow:inset 0 2px 3px #333,0 1px 2px #474d48}
footer{display:none}.install-dialog{width:min(calc(100% - 28px),360px);padding:24px;border:3px solid #4c534f;border-radius:18px;color:var(--ink);background:linear-gradient(125deg,#929891,#656d68);box-shadow:0 18px 50px #174e68}.install-dialog::backdrop{background:rgba(15,52,70,.65);backdrop-filter:blur(3px)}.dialog-speaker{color:var(--red);font-size:30px}.install-dialog h2{margin:5px 0 8px;font:800 32px/.9 'Barlow Condensed';color:var(--cream);text-shadow:1px 2px #46504b}.install-dialog p{color:#35403a;font-size:10px;line-height:1.6}.dialog-actions{display:grid;gap:8px;margin-top:18px}.install-dialog small{display:block;margin-top:14px;color:#35403a;font:9px/1.5 'Space Mono'}.install-dialog small[hidden]{display:none}
@keyframes win{50%{filter:brightness(1.8);transform:scale(1.05)}}.cell.win{animation:win .5s ease both}
@media (min-width:500px){.shell{width:min(100% - 34px,560px);margin:16px auto;padding:24px;border-radius:34px}.hero{padding-top:22px}.hero h1{font-size:70px}.board-frame{padding:12px}.board{gap:10px}}
@media (min-width:850px){body{padding:20px}.shell{width:min(100% - 80px,1180px);min-height:auto;padding:30px;border-radius:30px}.header-status{display:block;color:#3e4842;font-size:9px;letter-spacing:.1em}.hero{max-width:710px;padding:65px 0 50px}.game-layout{grid-template-columns:170px minmax(400px,560px) 170px;gap:clamp(30px,6vw,90px);justify-content:center}.left-panel{display:block;min-height:300px}.mission-number{font:700 50px 'Barlow Condensed';color:rgba(255,255,255,.28);margin-top:18px}.mission-title{font:700 21px/1 'Barlow Condensed';letter-spacing:.06em}.left-panel .rule{height:1px;background:var(--line);margin:22px 0}.side-panel p{color:#39423d;font-size:10px;line-height:1.7}.legend{display:flex;gap:9px;align-items:center;color:#39423d;font-size:8px;margin-top:12px}.legend-light,.legend-dark{width:12px;height:12px;display:inline-block;border:1px solid var(--red-deep)}.legend-light{background:var(--red)}.legend-dark{background:var(--off)}.right-panel{display:flex;flex-direction:column;gap:12px;min-height:300px}.right-panel .rule,.right-panel .tip{display:block}.tip{display:flex;gap:8px;margin-top:auto;color:#39423d;font-size:8px}.tip-icon{font-size:22px;color:var(--red)}footer{display:flex;justify-content:space-between;margin-top:70px;padding-top:20px;border-top:1px solid rgba(50,57,53,.3);color:#4b554f;font-size:8px;letter-spacing:.12em}}