:root{--navy:#071b14;--deep:#0b261d;--green:#12372b;--bright:#f0b83d;--ice:#eef6f0;--red:#b52b2f;--gold:#d99a24;--white:#fff}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:radial-gradient(circle at top,#174b39,#071b14 70%);color:#fff;font-family:Arial,Helvetica,sans-serif;overflow-x:hidden}
body{display:grid;place-items:center;padding:12px}
button,input{font:inherit}
.game-shell{width:min(100%,1500px);border:1px solid #d99a246b;border-radius:24px;overflow:hidden;background:#071b14;box-shadow:0 30px 90px #000a;touch-action:none}
.game-nav{height:38px;padding:0 16px;display:flex;align-items:center;justify-content:space-between;background:#06150f;border-bottom:1px solid #d99a2438}.game-nav a{color:#d7ded8;text-decoration:none;font-size:11px;font-weight:900;letter-spacing:.05em}.game-nav a:hover{color:var(--bright)}
.topbar{height:78px;display:flex;align-items:center;gap:clamp(8px,2vw,28px);padding:10px clamp(12px,2vw,30px);background:linear-gradient(90deg,#071b14,#174b39);border-bottom:2px solid #d99a2455}
.brand{display:flex;flex-direction:column;font-weight:1000;line-height:.82;letter-spacing:.08em;margin-right:auto;font-size:14px}
.brand-big{font-size:28px;color:#fff;letter-spacing:-.04em;text-shadow:2px 2px 0 #0f6a45}
.stat{min-width:68px;text-align:center}.stat small{display:block;font-size:10px;letter-spacing:.15em;color:#b8d1c2}.stat strong{font-size:24px;font-variant-numeric:tabular-nums}
.mode-stat{min-width:82px}.mode-stat strong{font-size:14px;color:var(--gold);letter-spacing:.05em}
.icon-btn{border:1px solid #ffffff30;background:#ffffff14;color:white;width:42px;height:42px;border-radius:50%;cursor:pointer}
.stage{position:relative;aspect-ratio:16/9;isolation:isolate;background:#091727;overflow:hidden}
canvas{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:crosshair;touch-action:none}
.overlay{position:absolute;inset:0;z-index:10;display:grid;place-items:center;padding:20px;background:linear-gradient(90deg,#06150fe8,#071b14b8 55%,#0b261d73);opacity:0;visibility:hidden;transition:.25s}
.overlay.visible{opacity:1;visibility:visible}
.panel{width:min(560px,92%);padding:clamp(22px,4vw,48px);border-radius:28px;background:linear-gradient(145deg,#12372bf2,#06150ff2);border:1px solid #d99a2477;box-shadow:0 22px 70px #000b,inset 0 1px #fff3;text-align:left;backdrop-filter:blur(8px)}
.panel.compact{text-align:center;width:min(480px,92%)}
.eyebrow{margin:0 0 10px;color:var(--bright);font-weight:900;letter-spacing:.18em;font-size:12px}
h1,h2{margin:0;font-size:clamp(38px,6vw,72px);line-height:.87;letter-spacing:-.06em;font-weight:1000;text-transform:uppercase}h1 em{font-style:normal;color:var(--gold);text-shadow:4px 4px 0 var(--red)}h2{font-size:clamp(36px,5vw,58px)}
.panel>p:not(.eyebrow){color:#d4e7f3;font-size:clamp(14px,2vw,18px);line-height:1.45}
.how-to{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0}.how-to div{padding:12px 8px;border-radius:14px;background:#ffffff0c;border:1px solid #ffffff1c;text-align:center}.how-to span{display:grid;place-items:center;margin:0 auto 7px;width:28px;height:28px;border-radius:50%;background:var(--red);font-weight:1000}.how-to b,.how-to small{display:block}.how-to small{margin-top:3px;color:#9ec2d6;font-size:10px}
.mobile-control-tip{display:none}
.name-label{display:block;color:var(--bright);font-weight:900;font-size:11px;letter-spacing:.12em}.name-label input{width:100%;margin-top:7px;padding:12px 14px;border:1px solid #ffffff40;border-radius:12px;background:#ffffff12;color:white;font-weight:900;outline:none}.name-label input:focus{border-color:var(--bright)}
.difficulty-picker{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:14px 0 0;padding:0;border:0}.difficulty-picker legend{grid-column:1/-1;margin-bottom:6px;color:var(--bright);font-size:11px;font-weight:900;letter-spacing:.12em}.difficulty-picker button{min-height:56px;padding:9px 10px;border:1px solid #ffffff2d;border-radius:12px;background:#ffffff0a;color:#fff;text-align:left;cursor:pointer}.difficulty-picker button b,.difficulty-picker button small{display:block}.difficulty-picker button small{margin-top:3px;color:#b9c9bf;font-size:9px}.difficulty-picker button.selected{border-color:var(--gold);background:#d99a241c;box-shadow:inset 0 0 0 1px #d99a2466}.difficulty-picker button.selected b{color:var(--bright)}
.primary-btn{width:100%;margin-top:16px;padding:15px 20px;border:0;border-radius:14px;background:linear-gradient(#ffdf62,#f6ae1b);color:#111b27;font-weight:1000;letter-spacing:.04em;cursor:pointer;box-shadow:0 7px 0 #a95c08,0 12px 30px #0008;transform:translateY(0)}.primary-btn:active{transform:translateY(5px);box-shadow:0 2px 0 #a95c08}
.secondary-btn{width:100%;margin-top:13px;padding:11px 18px;border:1px solid #d99a2466;border-radius:12px;background:transparent;color:#f4d48d;font-weight:900;letter-spacing:.05em;cursor:pointer}.secondary-btn:hover{border-color:var(--bright);background:#d99a2412}
.announcement{position:absolute;z-index:5;left:50%;top:13%;transform:translate(-50%,-20px) scale(.85);padding:10px 22px;border-radius:999px;background:#071425dd;border:2px solid var(--gold);font-size:clamp(13px,2vw,23px);font-weight:1000;text-align:center;opacity:0;transition:.2s;pointer-events:none;white-space:nowrap}.announcement.show{opacity:1;transform:translate(-50%,0) scale(1)}
.power-meter{position:absolute;z-index:4;left:3%;bottom:4%;width:150px;height:14px;padding:3px;border-radius:99px;background:#071425bb;border:1px solid #fff6}.power-meter span{display:block;width:50%;height:100%;border-radius:99px;background:linear-gradient(90deg,#55e28c,#ffd34e,#ef3340)}
.final-score{margin:22px 0;padding:16px;border-radius:18px;background:#ffffff0d}.final-score small{display:block;color:#8dddff;letter-spacing:.15em;font-weight:900}.final-score strong{display:block;color:var(--gold);font-size:64px;line-height:1}
.submit-status{min-height:20px;margin:8px 0!important;color:#8dddff!important;font-size:12px!important}
.instructions{min-height:46px;display:flex;align-items:center;justify-content:center;gap:30px;flex-wrap:wrap;padding:9px 15px;color:#d7ded8;font-size:12px;background:#06150f}
.leaderboard{padding:28px clamp(16px,4vw,42px) 34px;background:linear-gradient(145deg,#12372b,#071b14);border-top:1px solid #d99a2438}.leaderboard-heading{display:flex;align-items:end;justify-content:space-between;gap:18px}.leaderboard-heading h2{margin:0;font-family:Georgia,serif;font-size:clamp(26px,4vw,42px);letter-spacing:-.04em}.leaderboard-heading .eyebrow{margin-bottom:5px}.leaderboard-heading>button,.board-tabs button{border:1px solid #d99a2488;border-radius:10px;background:transparent;color:var(--bright);font-weight:900;cursor:pointer}.leaderboard-heading>button{padding:9px 14px;font-size:10px;letter-spacing:.08em}.board-tabs{display:flex;gap:8px;margin:20px 0 10px}.board-tabs button{min-width:86px;padding:9px 14px;color:#d7ded8;border-color:#ffffff2b}.board-tabs button.selected{background:var(--gold);border-color:var(--gold);color:#071b14}.score-list{margin:0;padding:0;list-style:none;counter-reset:rank}.score-list li{counter-increment:rank;display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:10px;min-height:46px;padding:9px;border-top:1px solid #ffffff16}.score-list li:before{content:counter(rank,decimal-leading-zero);color:var(--gold);font-size:11px;font-weight:900}.score-list strong{font-size:14px}.score-list b{color:var(--bright);font-size:18px}.score-list .score-empty{display:block;color:#b9c9bf}.score-list .score-empty:before{display:none}.score-list .is-current{background:#d99a2418}.leaderboard-status{margin:10px 0 0;color:#aebdb4;font-size:11px}
.book-promo{display:grid;grid-template-columns:92px 1fr auto;align-items:center;gap:24px;padding:22px clamp(18px,4vw,42px);background:linear-gradient(110deg,#06150f,#12372b);border-top:1px solid #d99a2466;border-bottom:1px solid #d99a2438}.book-promo>img{width:76px;height:106px;object-fit:cover;object-position:right;border:2px solid #d99a24;box-shadow:0 9px 22px #0008}.book-promo-copy h2{margin:0;font:700 clamp(27px,3vw,42px)/1 Georgia,serif}.book-promo-copy p:last-child{margin:8px 0 0;color:#c7d4cc;font:16px/1.4 Georgia,serif}.book-promo>a{display:flex;align-items:center;justify-content:space-between;gap:28px;min-width:230px;padding:17px 19px;background:var(--gold);color:#071b14;text-decoration:none;font-size:12px;font-weight:1000;letter-spacing:.04em;text-transform:uppercase;box-shadow:0 5px 0 #8d5e0c}.book-promo>a:hover{background:var(--bright)}
.rotate-note{display:none;pointer-events:none}
@media(max-width:700px){body{display:block;padding:0}.game-shell{width:100%;border-radius:0;border:0;box-shadow:none}.game-nav{height:34px;padding:0 10px}.game-nav a{font-size:10px}.topbar{height:58px;gap:5px;padding:7px 7px}.brand-big{font-size:18px}.brand{font-size:9px;line-height:.88}.stat{min-width:36px}.stat strong{font-size:16px}.stat small{font-size:7px}.mode-stat{display:none}.icon-btn{width:32px;height:32px;flex:0 0 32px;padding:0}.instructions{display:none}.panel{padding:18px}.how-to{margin:14px 0}.how-to div{padding:8px 5px}.how-to small{display:none}.primary-btn{padding:12px}.leaderboard-heading{align-items:flex-start;flex-direction:column}.board-tabs{width:100%}.board-tabs button{flex:1;min-width:0}.leaderboard{padding:24px 12px}.difficulty-picker button{min-height:48px}.book-promo{grid-template-columns:64px 1fr;gap:14px;padding:16px 14px}.book-promo>img{width:58px;height:82px}.book-promo>a{grid-column:1/-1;width:100%;min-width:0}.book-promo-copy p:last-child{font-size:13px}}
@media(orientation:portrait) and (max-width:700px){
  .stage{height:calc(100svh - 92px);min-height:560px;max-height:760px;aspect-ratio:auto;background:#06150f}
  .stage canvas{left:50%;right:auto;width:auto;min-width:100%;height:100%;transform:translateX(-50%);max-width:none}
  .overlay{place-items:start center;padding:10px 8px;overflow-y:auto;background:linear-gradient(#06150ff2,#0b261dcc)}
  .panel{width:100%;max-width:440px;margin:auto 0;padding:15px;border-radius:20px}
  .panel .eyebrow{margin-bottom:5px;font-size:9px}
  .panel h1{font-size:34px;line-height:.88}
  .panel>p.intro-copy{margin:8px 0;font-size:12px;line-height:1.25}
  .how-to{display:none}
  .mobile-control-tip{display:block!important;margin:8px 0!important;padding:7px 9px;border-radius:9px;background:#ffffff0d;color:#fff!important;text-align:center;font-size:11px!important;font-weight:800}
  .name-label{font-size:9px}.name-label input{margin-top:4px;padding:9px 11px}
  .difficulty-picker{gap:6px;margin-top:9px}.difficulty-picker legend{margin-bottom:2px;font-size:9px}.difficulty-picker button{min-height:43px;padding:6px 8px}.difficulty-picker button small{display:none}
  .primary-btn{margin-top:9px;padding:11px}
  .rotate-note{display:flex;position:absolute;z-index:6;right:8px;bottom:8px;align-items:center;gap:5px;padding:5px 8px;border-radius:999px;background:#06150fbb;border:1px solid #d99a2466;color:#f4d48d;font-size:9px}
  .rotate-note span{font-size:14px}
  .announcement{top:8%;max-width:92%;white-space:normal}
  .power-meter{left:12px;bottom:12px;width:120px}
}
@media(max-height:520px){body{display:block}.game-shell{width:100%;border:0;border-radius:0}.game-nav{height:28px}.topbar{height:48px}.stage{height:calc(100dvh - 76px);aspect-ratio:auto}.panel{padding:9px 18px;width:min(800px,97%);border-radius:18px}.panel>p:not(.eyebrow){margin:4px 0;font-size:11px}.how-to{display:none}.mobile-control-tip{display:none!important}.name-label{display:flex;align-items:center;gap:10px}.name-label input{margin:0;padding:7px}.difficulty-picker{grid-template-columns:repeat(4,1fr);margin-top:5px}.difficulty-picker button{min-height:37px;padding:4px 7px}.difficulty-picker button small{display:none}.primary-btn{margin-top:5px;padding:7px}h1{font-size:30px}.leaderboard{padding-top:24px}}
@media(orientation:landscape) and (max-height:700px){
  body{display:block;padding:0;background:#06150f}
  .game-shell{width:100%;border:0;border-radius:0;box-shadow:none}
  .game-nav{height:24px;padding:0 10px}.game-nav a{font-size:9px}
  .topbar{height:42px;gap:6px;padding:3px 8px}
  .brand{font-size:8px}.brand-big{font-size:16px}
  .stat{min-width:42px}.stat small{font-size:7px}.stat strong{font-size:17px}
  .mode-stat{display:block;min-width:62px}.mode-stat strong{font-size:10px}
  .icon-btn{width:31px;height:31px;flex:0 0 31px;padding:0}
  .stage{height:calc(100dvh - 66px);min-height:0;aspect-ratio:auto}
  .stage canvas{left:0;top:50%;width:100%;height:auto;transform:translateY(-47%)}
  .overlay{padding:7px 10px;overflow:auto}
  .panel{width:min(760px,96%);padding:9px 16px;border-radius:16px}
  .panel .eyebrow{margin-bottom:3px;font-size:8px}.panel h1{font-size:28px}
  .panel>p:not(.eyebrow){margin:4px 0;font-size:10px;line-height:1.2}
  .how-to,.mobile-control-tip{display:none!important}
  .name-label{display:flex;align-items:center;gap:8px;font-size:8px}.name-label input{margin:0;padding:6px 8px}
  .difficulty-picker{grid-template-columns:repeat(4,1fr);gap:5px;margin-top:5px}
  .difficulty-picker legend{margin-bottom:1px;font-size:8px}.difficulty-picker button{min-height:34px;padding:4px 6px}.difficulty-picker button small{display:none}
  .primary-btn{margin-top:5px;padding:7px}.rotate-note,.instructions{display:none}
}
@media(display-mode:fullscreen){.game-nav{display:none}.stage{height:calc(100dvh - 58px);aspect-ratio:auto}.instructions,.leaderboard{display:none}}
.stage:fullscreen{width:100vw;height:100vh;aspect-ratio:auto}.stage:fullscreen canvas{object-fit:contain;background:#050b14}.stage:fullscreen .rotate-note{position:fixed}.stage:-webkit-full-screen{width:100vw;height:100vh;aspect-ratio:auto}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}