@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{color-scheme:dark;--bg:#070b18;--panel:#101627;--line:#253347;--muted:#91a1bb;--text:#edf5ff;--accent:#6af6d7;--accent-rgb:106,246,215;--secondary:#db82fa;--secondary-rgb:219,130,250;--warm:#ffcd90;--board:#0b1222;--selected:#233951;--peer:#122331;--number:#86fae4;--glow:.7}
:root[data-theme=nebula]{--bg:#100d24;--panel:#1c1733;--line:#3d3557;--muted:#aca3c5;--accent:#d4a7ff;--accent-rgb:212,167,255;--secondary:#86dfeb;--secondary-rgb:134,223,235;--warm:#ffc99b;--board:#17132a;--selected:#3d3054;--peer:#251e3b;--number:#f3beff;--glow:.5}
:root[data-theme=moonrise]{--bg:#090f18;--panel:#151c27;--line:#3d3c3f;--muted:#b5afa4;--accent:#f6d49c;--accent-rgb:246,212,156;--secondary:#a7d9ef;--secondary-rgb:167,217,239;--warm:#ffb689;--board:#101823;--selected:#363d3b;--peer:#1d2730;--number:#ffdfa8}
:root[data-theme=aurora]{--bg:#031719;--panel:#10292d;--line:#295052;--muted:#99b9bb;--accent:#80f2cc;--accent-rgb:128,242,204;--secondary:#91d9ff;--secondary-rgb:145,217,255;--warm:#ffcd90;--board:#0a2026;--selected:#204d4f;--peer:#123237;--number:#a3ffdf}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px 'Manrope','Segoe UI',sans-serif;min-width:320px}button,select{font:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,select:focus-visible{outline:2px solid var(--warm);outline-offset:5px}button{color:inherit}a{color:inherit;text-decoration:none}#space,.space-vignette{position:fixed;inset:0;width:100%;height:100%;pointer-events:none}.space-vignette{background:radial-gradient(ellipse at 35% 50%,transparent 25%,rgba(3,5,15,.35) 85%)}.app-shell{position:relative;z-index:1;max-width:1280px;margin:auto;padding:0 58px}.topbar{height:86px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(145,161,187,.14)}.back-link{font-size:14px;color:var(--muted);letter-spacing:.01em;display:flex;gap:15px;align-items:center}.back-link span{color:#4c6078}.top-controls{display:flex;align-items:center;gap:21px}.quiet-button,.round-button,.text-button{background:none;border:0;padding:9px 0;color:var(--muted)}.quiet-button{font-size:14px;display:inline-flex;align-items:center;gap:8px}.quiet-button:hover,.text-button:hover{color:var(--accent)}.round-button{width:28px;height:28px;border:1px solid var(--line);border-radius:50%;padding:0;font-size:14px}.game-heading{display:flex;justify-content:space-between;align-items:center;padding:40px 0 30px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:.18em;color:var(--muted);display:block}.little-star{color:var(--accent);font-size:15px;margin-right:8px}h1{font-family:'Space Grotesk','Trebuchet MS',sans-serif;font-size:43px;letter-spacing:-1.9px;font-weight:500;line-height:1.16;margin:10px 0 8px}h1 span:not(.title-star){color:var(--accent)}h1 .title-star{font-size:35px;color:var(--secondary);display:inline-block;vertical-align:top;margin-left:17px;padding-top:5px}.dedication{font-size:15px;margin:0;color:var(--muted)}.session-mark{display:flex;align-items:center;gap:16px;margin-top:14px}.session-mark .eyebrow{font-size:11px;letter-spacing:.13em}.session-mark strong{display:block;font:14px 'Space Grotesk',monospace;letter-spacing:.06em;margin-top:6px;font-weight:400;color:var(--text)}.orbit-symbol{font-size:43px;line-height:1;color:var(--secondary);opacity:.7}.game-layout{display:grid;grid-template-columns:minmax(350px,620px) minmax(280px,340px);gap:57px;justify-content:center}.board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;font:14px 'Space Grotesk',sans-serif}.difficulty-badge{color:var(--accent);display:flex;gap:9px;align-items:center}.difficulty-badge>span:first-child{font-size:22px}.timer{color:var(--muted);display:flex;gap:9px;align-items:center;font-variant-numeric:tabular-nums}.timer>span:first-child{font-size:18px}.board-frame{position:relative;padding:9px;border:1px solid rgba(var(--accent-rgb),.3);background:rgba(var(--accent-rgb),.025);box-shadow:0 0 65px rgba(var(--accent-rgb),.065),inset 0 0 32px rgba(var(--accent-rgb),.025)}.corner{position:absolute;width:18px;height:18px;border-color:var(--accent);border-style:solid;filter:drop-shadow(0 0 4px rgba(var(--accent-rgb),.65));z-index:2}.corner-tl{top:-1px;left:-1px;border-width:2px 0 0 2px}.corner-tr{top:-1px;right:-1px;border-width:2px 2px 0 0}.corner-bl{bottom:-1px;left:-1px;border-width:0 0 2px 2px}.corner-br{bottom:-1px;right:-1px;border-width:0 2px 2px 0}#board{display:grid;grid-template-columns:repeat(9,1fr);aspect-ratio:1;background:var(--board);border:1px solid rgba(var(--accent-rgb),.35)}.cell{position:relative;background:transparent;color:#dbe6f7;border:0;border-right:1px solid rgba(145,161,187,.17);border-bottom:1px solid rgba(145,161,187,.17);font:500 clamp(20px,2.6vw,29px) 'Space Grotesk','Segoe UI',sans-serif;padding:0;display:flex;justify-content:center;align-items:center;min-width:0;min-height:0;transition:background .18s,box-shadow .18s,color .18s}.cell:nth-child(9n){border-right:0}.cell:nth-child(n+73){border-bottom:0}.cell.box-right{border-right:2px solid rgba(var(--accent-rgb),.38)}.cell.box-bottom{border-bottom:2px solid rgba(var(--accent-rgb),.38)}.cell.peer{background:var(--peer)}.cell.same{background:rgba(var(--accent-rgb),.12);color:var(--accent)}.cell.selected{background:var(--selected);box-shadow:inset 0 0 0 2px var(--accent),inset 0 0 22px rgba(var(--accent-rgb),.14);z-index:1}.cell:not(.given){color:var(--number);text-shadow:0 0 12px rgba(var(--accent-rgb),.45)}.cell.wrong{color:var(--warm);background:rgba(255,187,109,.1);text-shadow:none}.cell:hover{background:rgba(var(--accent-rgb),.14)}.cell:focus-visible{outline-offset:-4px;z-index:3}.cell.given{font-weight:500}.cell .notes-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);width:80%;height:86%;align-items:center;font:12px 'Space Grotesk',sans-serif;color:var(--muted);text-shadow:none}.cell .notes-grid span{height:100%;display:flex;align-items:center;justify-content:center}.cell.arrival{animation:arrival .5s ease-out}.cell.unit-complete{animation:unit-complete 1s ease-out}.board-bottom{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px;padding:16px 0}.board-bottom kbd{border:1px solid var(--line);padding:2px 5px;border-radius:3px;color:#b2c0d6;font-size:11px}.key-sep{margin:0 8px;color:#4a5b72}.text-button{font-size:12px;padding:4px}.flight-panel{padding-top:43px}.progress-panel{padding-bottom:24px;border-bottom:1px solid var(--line)}.panel-eyebrow{font-size:11px;font-weight:700;letter-spacing:.13em;color:var(--muted);display:flex;align-items:center;justify-content:space-between}.panel-eyebrow>span{color:var(--accent);font-size:17px}.progress-main{display:flex;align-items:center;justify-content:space-between;margin:11px 0 13px}.progress-main>strong{font:500 47px 'Space Grotesk',sans-serif;letter-spacing:-2px}.progress-main>strong>span{font-size:23px;color:var(--muted);margin-left:4px}.mini-constellation{width:97px;height:55px;position:relative}.mini-constellation:before,.mini-constellation:after{content:'';position:absolute;top:25px;left:15px;width:35px;border-top:1px solid rgba(var(--accent-rgb),.45);transform:rotate(-25deg)}.mini-constellation:after{left:46px;transform:rotate(36deg)}.mini-constellation span{position:absolute;color:var(--accent);font-size:20px}.mini-constellation span:nth-child(1){left:4px;top:24px}.mini-constellation span:nth-child(2){left:41px;top:7px;color:var(--secondary);font-size:27px}.mini-constellation span:nth-child(3){left:77px;top:33px;font-size:13px}.progress-track{height:4px;background:#223041;overflow:hidden}.progress-track>div{height:100%;width:0;background:var(--accent);box-shadow:0 0 10px var(--accent);transition:width .5s}.progress-caption{display:flex;justify-content:space-between;gap:12px;font-size:11px;color:var(--muted);margin-top:11px}.progress-caption>span:last-child{white-space:nowrap;color:var(--accent)}.feedback{display:flex;align-items:center;gap:12px;min-height:72px;padding:14px 0}.feedback>span{color:var(--secondary);font-size:27px}.feedback p{font-size:13px;line-height:1.6;margin:0;color:#b5c0d5}.number-section .panel-eyebrow{margin-bottom:13px}#mode-label{font-size:10px;letter-spacing:.12em;color:var(--accent)}.number-pad{display:grid;grid-template-columns:repeat(9,1fr);gap:5px}.number-button{height:47px;padding:0;background:rgba(19,30,46,.8);border:1px solid var(--line);border-radius:5px;color:var(--text);font:500 20px 'Space Grotesk',sans-serif;position:relative}.number-button small{position:absolute;bottom:3px;left:0;right:0;font-size:8px;color:var(--muted)}.number-button:hover,.number-button.active{border-color:var(--accent);background:rgba(var(--accent-rgb),.15);color:var(--accent)}.number-button.exhausted{opacity:.42}.tool-row{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:8px;margin:13px 0}.tool-button{background:transparent;border:1px solid var(--line);border-radius:5px;min-height:45px;font-size:12px;display:flex;justify-content:center;align-items:center;gap:7px;padding:5px}.tool-button>span{font-size:19px;color:var(--muted)}.tool-button kbd{font-size:9px;color:var(--muted);border:1px solid var(--line);border-radius:2px;padding:1px 3px}.tool-button[aria-pressed=true],.tool-button:hover{border-color:var(--accent);color:var(--accent)}.hint-button{height:49px;border:1px solid rgba(var(--secondary-rgb),.3);background:rgba(var(--secondary-rgb),.05);border-radius:5px;width:100%;display:flex;align-items:center;gap:9px;text-align:left;padding:0 14px;font-size:13px;color:#e1c4ee}.hint-button>span:first-child{font-size:19px;color:var(--secondary)}.hint-label{margin-left:auto;color:var(--secondary);font-size:11px}.hint-button:hover{background:rgba(var(--secondary-rgb),.14)}.new-section{padding-top:27px;margin-top:25px;border-top:1px solid var(--line)}.new-controls{display:grid;grid-template-columns:104px 1fr;gap:10px;margin-top:12px}select{color:var(--text);background:var(--panel);border:1px solid var(--line);border-radius:5px;padding:12px 10px;font-size:13px}.primary-button{display:flex;align-items:center;justify-content:center;gap:14px;background:var(--accent);color:#082022;border:1px solid transparent;border-radius:5px;font-size:13px;font-weight:800;min-height:47px;padding:12px 18px;box-shadow:0 0 18px rgba(var(--accent-rgb),.12);transition:box-shadow .2s,transform .2s}.primary-button>span{font-size:20px;font-weight:400}.primary-button:hover{box-shadow:0 0 30px rgba(var(--accent-rgb),.3);transform:translateY(-1px)}footer{display:flex;align-items:center;gap:10px;border-top:1px solid rgba(145,161,187,.14);margin:23px 0 0;padding:23px 0 28px;font-size:12px;color:var(--muted)}.footer-star{color:var(--secondary);font-size:16px}.footer-meta{margin-left:auto;font-size:11px;opacity:.7}.loading{position:absolute;inset:9px;background:var(--board);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:10px;z-index:4}.loading[hidden]{display:none}.loading p{font-size:14px;color:var(--muted)}.loading-orbit{height:45px;width:45px;border:1px solid var(--line);border-top:2px solid var(--accent);transform:rotate(45deg);animation:orbit 2s linear infinite}dialog{color:var(--text);background:var(--panel);border:1px solid rgba(var(--accent-rgb),.35);border-radius:12px;width:min(470px,calc(100% - 32px));padding:38px;box-shadow:0 0 100px rgba(var(--accent-rgb),.15);max-height:90dvh;overflow:auto}dialog::backdrop{background:rgba(3,5,16,.8);backdrop-filter:blur(10px)}dialog h2{font:500 30px 'Space Grotesk',sans-serif;letter-spacing:-1px;margin:13px 0 20px}dialog p{font-size:14px;line-height:1.8;color:#b9c4d7}.dialog-close{position:absolute;right:16px;top:12px;background:none;border:0;font-size:25px;color:var(--muted)}.shortcut-list{display:grid;grid-template-columns:1fr auto;gap:12px;font-size:12px;margin:26px 0;color:var(--muted)}.shortcut-list kbd{font-size:11px;color:var(--text)}.full-button{width:100%;margin-top:24px}.dialog-actions{display:flex;justify-content:flex-end;align-items:center;gap:25px;margin-top:22px}#win-dialog{text-align:center;border-color:var(--secondary)}#win-dialog .eyebrow{color:var(--accent)}.win-emblem{font-size:76px;line-height:1.2;color:var(--accent);text-shadow:0 0 45px rgba(var(--accent-rgb),.55)}#win-dialog h2{font-size:37px;margin:15px 0}.win-love{color:var(--secondary)!important;font-weight:600;font-size:17px!important}.win-stats{display:flex;justify-content:center;gap:70px;margin:25px 0}.win-stats div{display:flex;flex-direction:column;gap:7px}.win-stats strong{font:26px 'Space Grotesk',sans-serif}.win-stats span{font-size:11px;color:var(--muted)}.win-stay{margin-top:19px;font-size:13px}.board-frame.won{box-shadow:0 0 60px rgba(var(--accent-rgb),.25)}@keyframes arrival{0%{box-shadow:inset 0 0 0 3px var(--accent);background:rgba(var(--accent-rgb),.45)}100%{box-shadow:inset 0 0 0 0 transparent}}@keyframes unit-complete{0%,25%{background:rgba(var(--secondary-rgb),.35);color:var(--secondary)}100%{background:transparent}}@keyframes orbit{to{transform:rotate(405deg)}}
@media(min-width:1400px){.app-shell{padding:0 55px}.game-heading{padding-top:45px}.game-layout{gap:70px}.flight-panel{padding-top:43px}.number-button{height:50px}}
@media(max-width:1050px){.app-shell{padding:0 32px}.game-layout{gap:30px;grid-template-columns:minmax(350px,1fr) 295px}h1{font-size:38px}.session-mark .eyebrow{font-size:10px}.number-button{font-size:18px}.tool-button{font-size:11px;gap:4px}.flight-panel{padding-top:43px}.progress-main>strong{font-size:42px}.new-section{margin-top:19px;padding-top:22px}.game-heading{padding:30px 0 25px}.topbar{height:70px}}
@media(max-width:780px){.app-shell{padding:0 22px}.topbar{height:66px}.back-link{font-size:12px;gap:8px}.top-controls{gap:14px}.quiet-button{font-size:12px}.game-heading{padding:26px 0 20px}.session-mark{display:none}h1{font-size:36px}.eyebrow{font-size:10px}.dedication{font-size:13px}.game-layout{grid-template-columns:minmax(0,540px);gap:0}.flight-panel{padding-top:13px;display:grid;grid-template-columns:1fr 1fr;gap:12px 20px}.progress-panel{grid-column:1/-1;display:grid;grid-template-columns:auto 1fr;gap:0 20px;padding-bottom:17px}.progress-panel .panel-eyebrow{grid-column:1/-1}.progress-main{grid-row:2/4;margin:3px 0 0}.progress-main>strong{font-size:33px}.progress-main>strong>span{font-size:18px}.mini-constellation{display:none}.progress-track{margin-top:15px}.progress-caption{font-size:11px;grid-column:2}.feedback{grid-column:1/-1;min-height:40px;padding:2px 0}.feedback p{font-size:13px}.number-section{grid-column:1/-1}.number-button{height:48px;font-size:23px}.number-pad{gap:7px}.number-section .panel-eyebrow{font-size:11px;margin-bottom:9px}.tool-row{grid-column:1/-1;margin:0}.tool-button{font-size:13px;gap:8px}.hint-button{grid-column:1/-1;height:43px}.new-section{grid-column:1/-1;margin:3px 0 0;padding-top:17px}.new-controls{grid-template-columns:1fr 2fr}.board-top{margin-bottom:12px}.cell{font-size:clamp(20px,5.5vw,30px)}.board-bottom{padding:13px 0 5px}footer{margin-top:22px;font-size:11px;line-height:1.6}.footer-meta{display:none}.game-layout{margin:auto}.cell .notes-grid{font-size:clamp(8px,2.3vw,12px)}dialog{padding:30px}}
@media(max-width:400px){.app-shell{padding:0 15px}.top-controls{gap:11px}.back-link{max-width:154px;line-height:1.5}.back-link span{display:none}.quiet-button{font-size:11px}.quiet-button>span{font-size:11px}.game-heading .eyebrow{font-size:9px;letter-spacing:.13em}h1{font-size:32px}h1 .title-star{font-size:28px;margin-left:11px}.board-frame{padding:6px}.board-bottom>span{font-size:10px}.board-bottom kbd{font-size:9px}.number-pad{gap:4px}.number-button{font-size:21px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}dialog::backdrop{backdrop-filter:none}}
html[data-motion=off] *,html[data-motion=off] *:before,html[data-motion=off] *:after{animation:none!important;transition:none!important}
#effects{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:5}
@media(max-width:600px){.input-dock .hint-button{grid-column:auto}}
/* Keep the complete puzzle visible on desktop; keep touch input beside the player's thumb. */
@media(min-width:781px){.game-layout{grid-template-columns:minmax(350px,min(620px,calc(100dvh - 285px))) minmax(280px,340px)}.game-heading{padding:26px 0 23px}.topbar{height:72px}.app-shell{max-width:1250px}.flight-panel{padding-top:40px}}
@media(max-width:780px){.input-dock{grid-column:1/-1}.input-dock .tool-row{margin:13px 0}.input-dock .hint-button{height:44px}.topbar{height:54px}.game-heading{padding:17px 0}.game-heading .eyebrow{display:none}h1{font-size:32px;margin:0 0 5px}.dedication{font-size:12px}.board-top{margin-bottom:8px}.flight-panel{gap:8px 20px}.board-bottom{padding:10px 0 0}.progress-panel{padding-bottom:10px}.progress-panel .panel-eyebrow{font-size:12px}.feedback{min-height:32px}.new-section{margin:6px 0 0}}
@media(max-width:600px){body{padding-bottom:env(safe-area-inset-bottom)}.app-shell{padding-bottom:205px}.input-dock{position:fixed;bottom:0;left:0;right:0;z-index:10;display:grid;grid-template-columns:repeat(4,1fr);gap:9px;padding:12px 16px calc(13px + env(safe-area-inset-bottom));background:rgba(9,15,29,.96);border-top:1px solid rgba(var(--accent-rgb),.35);box-shadow:0 -12px 40px rgba(0,0,0,.35);backdrop-filter:blur(12px)}[data-theme=nebula] .input-dock{background:rgba(23,18,41,.96)}.input-dock .number-section{grid-column:1/-1}.input-dock .number-section .panel-eyebrow{display:none}.input-dock .number-pad{grid-template-columns:repeat(5,1fr);gap:7px}.input-dock .number-button{height:43px;font-size:23px}.input-dock .number-button small{right:7px;left:auto;bottom:7px;font-size:10px}.input-dock .tool-row{display:contents}.input-dock .tool-button{min-height:40px;font-size:12px;border-radius:5px;gap:5px}.input-dock .tool-button kbd{display:none}.input-dock .hint-button{height:40px;padding:4px;justify-content:center;font-size:12px;gap:5px}.input-dock .hint-copy{display:none}.input-dock .hint-label{font-size:12px;margin:0}.number-button:nth-child(9){grid-column:4/6}.new-section{padding-top:14px}.board-bottom>span{display:none}.board-bottom{justify-content:flex-end;padding:7px 0 0}.feedback p{font-size:12px}.progress-main>strong{font-size:28px}.progress-track{margin-top:12px}.progress-caption{margin-top:6px}.progress-panel .panel-eyebrow{font-size:10px}.new-controls{margin-top:8px}footer{margin-top:18px}.top-controls{gap:13px}.back-link{font-size:11px}.board-frame{padding:6px}.game-heading{padding:15px 0 13px}h1{font-size:30px}.board-top{font-size:12px}.difficulty-badge>span:first-child{font-size:17px}.loading{inset:6px}}
@media(max-height:720px) and (max-width:600px){.topbar{height:45px}.game-heading{padding:10px 0}.dedication{display:none}.cell{font-size:21px}.progress-panel{padding-bottom:7px}.input-dock{padding-top:9px;padding-bottom:9px;gap:7px}.input-dock .number-button{height:39px}.input-dock .tool-button,.input-dock .hint-button{height:36px;min-height:36px}.game-heading h1{font-size:26px}}
@media(min-width:601px) and (max-width:780px){.app-shell{padding-bottom:160px}.input-dock{position:fixed;bottom:0;left:0;right:0;z-index:10;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:14px max(22px,calc((100% - 600px)/2)) calc(14px + env(safe-area-inset-bottom));background:rgba(9,15,29,.97);border-top:1px solid rgba(var(--accent-rgb),.35);box-shadow:0 -12px 40px #0005}.input-dock .number-section{grid-column:1/-1}.input-dock .number-section .panel-eyebrow{display:none}.input-dock .number-pad{grid-template-columns:repeat(9,1fr)}.input-dock .number-button{height:48px}.input-dock .tool-row{display:contents}.input-dock .hint-button{grid-column:auto;height:45px;justify-content:center;gap:8px;padding:0 10px}.input-dock .hint-copy{display:none}.input-dock .hint-label{margin:0;font-size:13px}.input-dock .tool-button{height:45px}.input-dock .tool-button kbd{display:none}}
@media(orientation:landscape) and (max-height:600px){.app-shell{padding:0 24px}.topbar{height:42px}.game-heading{padding:11px 0 12px}.game-heading .eyebrow,.dedication,.session-mark,footer{display:none}h1{font-size:27px;margin:0}h1 .title-star{font-size:23px;padding-top:0}.game-layout{grid-template-columns:minmax(200px,min(480px,calc(100dvh - 133px))) minmax(270px,340px);gap:28px}.board-top{margin-bottom:7px;font-size:12px}.board-bottom{padding:6px 0}.flight-panel{display:block;padding-top:22px}.progress-panel{display:block;padding-bottom:9px}.progress-main{margin:5px 0}.progress-main>strong{font-size:28px}.progress-main>strong>span{font-size:16px}.mini-constellation{display:none}.progress-caption{font-size:10px;margin-top:6px}.feedback{min-height:36px;padding:6px 0}.feedback p{font-size:11px}.number-section .panel-eyebrow{display:none}.number-button{height:40px;font-size:20px}.tool-row{margin:8px 0;gap:6px}.tool-button{min-height:36px}.hint-button{height:36px}.new-section{padding-top:9px;margin-top:10px}.new-section>.panel-eyebrow{display:none}.new-controls{margin-top:0}.new-controls select,.new-controls button{min-height:38px;padding:8px 10px}.input-dock{position:static;display:block;padding:0;background:none;border:0;box-shadow:none}.input-dock .number-pad{grid-template-columns:repeat(9,1fr)}.input-dock .number-button:nth-child(9){grid-column:auto}.input-dock .tool-row{display:grid;grid-template-columns:repeat(3,1fr);margin:8px 0}.input-dock .hint-button{grid-column:auto;justify-content:space-between;height:36px}.input-dock .hint-copy{display:inline}.cell{font-size:21px}}
/* Four original cosmic worlds, with a quiet center for the puzzle. */
#cosmic-background{position:fixed;inset:0;pointer-events:none;background-image:url('./backgrounds/neon-orbit.webp');background-size:cover;background-position:center;opacity:.8;transition:opacity .4s}
.space-vignette{background:linear-gradient(90deg,rgba(3,5,15,.2),rgba(3,5,15,.05) 65%,rgba(3,5,15,.1)),radial-gradient(ellipse at 45% 45%,transparent 25%,rgba(3,5,15,.2) 85%)}
.session-mark{gap:13px;max-width:370px}.session-mark strong{font-size:15px;letter-spacing:0;margin-top:4px}.session-mark #puzzle-id{display:block;font:10px 'Space Grotesk',monospace;letter-spacing:.06em;margin-top:6px;color:var(--muted)}
.album-mini{background:none;border:1px solid rgba(var(--accent-rgb),.35);padding:3px;border-radius:9px;line-height:0;flex-shrink:0}.album-mini img{border-radius:5px;object-fit:cover}.session-mark .round-button{margin-left:5px;flex-shrink:0}
.music-art-button{position:relative;display:flex;padding:0;border:1px solid rgba(var(--accent-rgb),.4);border-radius:6px;background:var(--panel);line-height:0}.music-art-button img{border-radius:5px;object-fit:cover}.music-indicator{position:absolute;bottom:-4px;right:-5px;font-size:11px;line-height:15px;width:15px;border-radius:50%;background:var(--panel);color:var(--accent)}.music-art-button[data-playing=true]{box-shadow:0 0 15px rgba(var(--accent-rgb),.3)}
#theme-dialog{width:min(640px,calc(100% - 32px))}.theme-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.theme-card,.track-card{padding:0;border:1px solid var(--line);background:rgba(3,7,17,.3);border-radius:9px;overflow:hidden;text-align:left}.theme-card img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.theme-card strong{display:flex;align-items:center;justify-content:space-between;padding:12px;font-size:13px;font-weight:600}.theme-card[aria-pressed=true],.track-card[aria-pressed=true]{border-color:var(--accent);box-shadow:0 0 15px rgba(var(--accent-rgb),.13)}.theme-card[aria-pressed=true] strong:after,.track-card[aria-pressed=true] .track-name:after{content:'✦';color:var(--accent);margin-left:5px}.theme-card:hover,.track-card:hover{border-color:var(--accent)}
#music-dialog{width:min(500px,calc(100% - 32px))}#music-dialog h2{font-size:27px}.track-gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.track-card img{display:block;width:100%;aspect-ratio:1;object-fit:cover}.track-card .track-name{display:block;font-size:13px;font-weight:700;line-height:1.5;padding:12px 12px 3px}.track-card small{display:block;color:var(--muted);padding:0 12px 12px;font-size:11px}.music-transport{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:22px 0}.volume-label{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);margin-top:4px}#music-volume{width:100%;accent-color:var(--accent);margin:12px 0 0;min-height:32px;cursor:pointer}#music-volume:focus-visible{outline:2px solid var(--warm);outline-offset:3px}.dialog-caption{font-size:12px!important;line-height:1.6!important;color:var(--muted)!important;margin:16px 0 0}.music-credit{font-size:10px!important;margin:12px 0 0!important;color:var(--muted)!important;opacity:.7}
.theme-card img,.track-card img{height:auto}
body{min-width:0}
@media(max-width:780px){.top-controls{gap:14px}.back-link{min-width:0;max-width:170px;line-height:1.5}.music-art-button img{width:27px;height:27px}}
@media(max-width:600px){.top-controls{gap:12px}.back-link{max-width:130px;font-size:10px}.back-link span{display:none}#sound-toggle span{display:none}#sound-toggle{font-size:18px;width:22px;justify-content:center}#theme-toggle{font-size:12px}.input-dock{background:color-mix(in srgb,var(--board) 96%,transparent)}.theme-card strong{padding:10px;font-size:12px}.theme-gallery{gap:10px}#music-dialog{padding:28px 22px}.track-card .track-name{font-size:12px;padding:10px 9px 3px}.track-card small{padding:0 9px 10px}.music-transport{gap:12px}.music-transport .primary-button{padding:10px 15px}.music-transport .quiet-button{white-space:nowrap;font-size:12px}}
@media(max-width:780px){#cosmic-background{background-position:75% center}}