@font-face{font-family:Space;src:url('/fonts/space-grotesk.ttf') format('truetype');font-weight:500;font-display:swap}
@font-face{font-family:DM;src:url('/fonts/dm-sans.ttf') format('truetype');font-weight:400;font-display:swap}
:root{color-scheme:dark;--bg:#111513;--surface:#191e1b;--surface-hover:#222a25;--board:#121814;--text:#edf0e9;--muted:#949e95;--faint:#748078;--border:#2c352e;--accent:#b8efce;--accent-ink:#172d20;--grid:#202a23;--overlay:rgba(15,21,17,.84);--shadow:rgba(0,0,0,.2);--ghost:rgba(184,239,206,.3);--piece-i:#9bddda;--piece-j:#91ace3;--piece-l:#e6af87;--piece-o:#e1ca8a;--piece-s:#a9cea0;--piece-t:#b8a3d6;--piece-z:#d996a0;--board-height:min(65vh,620px);font-family:DM,Arial,sans-serif;font-synthesis:weight}
:root[data-theme=day]{color-scheme:light;--bg:#f4f3ec;--surface:#eeeee6;--surface-hover:#e4e8df;--board:#fafbf5;--text:#253c2c;--muted:#69766a;--faint:#768276;--border:#d8dfd1;--accent:#355e43;--accent-ink:#fff;--grid:#e8eddf;--overlay:rgba(247,249,240,.88);--shadow:rgba(47,67,42,.08);--ghost:rgba(52,94,67,.33);--piece-i:#5da7a7;--piece-j:#7893c7;--piece-l:#c79668;--piece-o:#c3a856;--piece-s:#86aa78;--piece-t:#a18abb;--piece-z:#c2858d}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);min-width:320px;min-height:100svh;transition:background .3s,color .3s;-webkit-tap-highlight-color:transparent}
button,a,canvas{touch-action:manipulation}
button{font:inherit;color:inherit;cursor:pointer;border:0}
button:disabled{cursor:default;opacity:.4}
button:focus-visible,a:focus-visible,canvas:focus-visible{outline:2px solid var(--accent);outline-offset:5px}
button{transition:background .18s,color .18s,opacity .18s,transform .18s}
button:active:not(:disabled){transform:translateY(1px)}
[hidden]{display:none!important}
.icon-definitions{width:0;height:0;position:absolute;overflow:hidden}
.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.55;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.site-wrap{max-width:1320px;margin:auto;padding:0 54px;min-height:100svh;display:flex;flex-direction:column}
.site-header{display:flex;align-items:center;height:100px;border-bottom:1px solid var(--border);gap:34px;flex-shrink:0}
.brand{display:flex;align-items:center;gap:13px;color:var(--text);text-decoration:none;font:500 32px Space,Arial,sans-serif;letter-spacing:-1.6px;line-height:1}
.brand-period{color:var(--accent)}
.brand-mark{display:grid;grid-template-columns:repeat(3,8px);grid-template-rows:repeat(2,8px);gap:2px;transform:rotate(-90deg);margin-right:2px}
.brand-mark i{background:var(--accent);border-radius:1.5px}
.brand-mark i:first-child{grid-column:2}.brand-mark i:nth-child(2){grid-column:1}
.header-caption{font-size:9px;letter-spacing:1.55px;color:var(--faint);padding-top:4px}
.preferences{display:flex;align-items:center;gap:5px;margin-left:auto}
.icon-button{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:transparent;color:var(--muted);position:relative}
.icon-button:hover{background:var(--surface-hover);color:var(--text)}
.audio-button[aria-pressed=false]{opacity:.5}
.audio-button[aria-pressed=false]::after{content:'';position:absolute;width:23px;height:1.5px;background:currentColor;transform:rotate(-48deg);box-shadow:0 1.5px 0 var(--bg)}
.preference-divider{height:20px;width:1px;background:var(--border);margin:0 13px}
.theme-toggle{display:flex;gap:9px;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:30px;padding:10px 17px;background:var(--surface);font-size:12px;min-width:95px}
.theme-toggle .icon{width:15px;height:15px;color:var(--accent)}
.theme-toggle:hover{background:var(--surface-hover)}
.game-layout{display:grid;grid-template-columns:230px auto 146px;justify-content:center;align-items:start;gap:44px;margin:auto;padding:43px 0 37px;width:100%}
.left-column{padding-top:31px}
.eyebrow{font-size:9px;letter-spacing:1.6px;color:var(--accent);font-weight:500;margin:0}
.tiny-cross{display:inline-block;font-size:20px;font-family:Space,Arial,sans-serif;font-weight:400;margin-right:6px;vertical-align:-2px;color:var(--accent)}
h1{font:500 38px/1.15 Space,Arial,sans-serif;letter-spacing:-1.8px;margin:19px 0 16px}
.intro-copy{font-size:12px;line-height:1.85;color:var(--muted);margin:0}
.scoreboard{margin-top:43px}
.label{font-size:9px;letter-spacing:1.55px;font-weight:500;color:var(--muted);display:block}
.score-primary strong{font:500 60px/1.3 Space,Arial,sans-serif;letter-spacing:-3px;display:block;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.best-score{display:flex;align-items:center;gap:15px;margin:5px 0 25px}
.best-score .label{font-size:8px;letter-spacing:.8px;display:flex;align-items:center;gap:6px}
.best-score .icon{width:12px;height:12px;color:var(--accent)}
.best-score strong{font:500 14px Space,Arial,sans-serif;color:var(--accent)}
.run-stats{display:flex;border-top:1px solid var(--border);padding-top:23px;gap:50px}
.run-stats strong{font:500 29px/1.5 Space,Arial,sans-serif;letter-spacing:-.8px;display:block;font-variant-numeric:tabular-nums;margin-top:2px}
.level-progress{margin-top:24px}
.progress-top{display:flex;justify-content:space-between;font-size:8px;color:var(--faint);letter-spacing:1px}
.progress-track{height:3px;background:var(--border);margin-top:12px;border-radius:2px;overflow:hidden}
#progress-fill{height:100%;background:var(--accent);width:0;transition:width .3s}
.personal-note{font-size:10px;line-height:1.8;color:var(--faint);margin-top:24px}
.play-column{width:calc(var(--board-height)/2 + 22px)}
.board-caption{display:flex;justify-content:space-between;align-items:center;height:26px;margin-bottom:6px;font-size:8px;letter-spacing:1.35px;color:var(--muted)}
.board-caption>span:first-child{display:flex;align-items:center;gap:7px;color:var(--accent)}
.status-dot{width:5px;height:5px;background:var(--accent);border-radius:50%;box-shadow:0 0 9px #b8efce33}
.board-shell{position:relative;border:1px solid var(--border);padding:10px;background:var(--surface);border-radius:10px;box-shadow:0 20px 60px -28px var(--shadow);overflow:hidden}
#board{display:block;width:100%;height:var(--board-height);background:var(--board);border-radius:3px;outline-offset:1px;touch-action:none}
.board-overlay{position:absolute;inset:10px;background:linear-gradient(180deg,var(--overlay) 15%,var(--overlay) 65%,transparent 150%);display:flex;align-items:center;justify-content:center;z-index:2;border-radius:3px}
.overlay-content{text-align:center;width:100%;padding:0 19px;transform:translateY(-18px)}
.overlay-symbol{display:grid;width:max-content;grid-template-columns:repeat(3,13px);grid-template-rows:repeat(2,13px);gap:3px;margin:0 auto 29px}
.overlay-symbol i{border:1px solid var(--accent);border-radius:2px;background:color-mix(in srgb,var(--accent) 12%,transparent)}
.overlay-symbol i:first-child{grid-column:2}.overlay-symbol i:nth-child(2){grid-column:1}
.overlay-content .eyebrow{font-size:8px;letter-spacing:1.5px;color:var(--muted)}
.overlay-content h2{font:500 35px/1.15 Space,Arial,sans-serif;letter-spacing:-1.4px;margin:17px 0 15px}
.overlay-description{font-size:12px;line-height:1.75;color:var(--muted);margin:0 0 28px;white-space:pre-line}
.primary-button{display:flex;align-items:center;justify-content:space-between;background:var(--accent);color:var(--accent-ink);gap:15px;padding:16px 21px;border-radius:5px;font-size:13px;font-weight:700;width:100%;text-align:left}
.primary-button:hover{filter:brightness(1.06);box-shadow:0 4px 24px #b8efce12}
.overlay-content .primary-button{max-width:205px;margin:auto}
.primary-button .icon{width:17px;height:17px}
.start-hint{display:block;font-size:8px;letter-spacing:1.4px;color:var(--faint);margin-top:17px}
.text-button{display:block;background:none;font-size:11px;text-decoration:underline;text-underline-offset:3px;margin:19px auto 0;color:var(--muted)}
.board-bottom{display:flex;justify-content:space-between;font-size:7px;letter-spacing:1.05px;color:var(--faint);padding:13px 2px 0}
#elapsed{font-variant-numeric:tabular-nums;letter-spacing:1px}
.right-column{padding-top:32px}
.piece-panel{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:17px;width:100%;display:block;text-align:left}
.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:5px;width:100%}
.panel-heading .label{font-size:8px;letter-spacing:1.3px}
.panel-dots{color:var(--faint);font:500 15px/8px Space,Arial,sans-serif}
#next{display:block;width:100%;height:250px;margin-top:11px}
.hold-panel{margin-top:15px}
.hold-panel:hover{background:var(--surface-hover)}
.hold-panel:disabled{opacity:.55}
#hold{display:block;width:100%;height:64px;margin:8px 0 3px}
#hold-hint{font-size:6px;letter-spacing:1px;color:var(--faint);display:block;text-align:center;white-space:nowrap}
kbd{font:400 9px DM,Arial,sans-serif;background:var(--surface);border:1px solid var(--border);border-radius:3px;min-width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;padding:1px 4px;color:var(--muted);white-space:nowrap}
.panel-heading kbd{font-size:8px;min-width:16px;height:16px}
.game-actions{margin-top:20px;display:flex;flex-direction:column;gap:3px}
.utility-button{display:flex;align-items:center;gap:10px;text-align:left;background:none;padding:11px 2px;color:var(--muted);font-size:11px;border-radius:4px}
.utility-button:hover{color:var(--text)}
.utility-button .icon{width:15px;height:15px}
.utility-button kbd{margin-left:auto;font-size:8px;min-width:16px;height:16px}
.zen-note{border-top:1px solid var(--border);margin-top:15px;padding-top:19px;display:flex;align-items:flex-start;gap:8px;color:var(--faint)}
.zen-note .tiny-cross{font-size:18px;margin:0;color:var(--faint)}
.zen-note p{margin:1px 0 0;font-size:10px;line-height:1.8}
.site-footer{min-height:76px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--faint);flex-shrink:0}
.footer-note{display:flex;align-items:center;gap:8px;font-size:8px;letter-spacing:1.1px}
.footer-dot{width:4px;height:4px;border-radius:50%;background:var(--faint)}
.keyboard-legend{display:flex;gap:19px;font-size:10px}
.keyboard-legend>span{display:flex;align-items:center;gap:5px}
.keyboard-legend kbd{font-size:9px;height:20px;min-width:20px}
.keyboard-legend kbd:last-of-type{margin-right:3px}
.footer-signature{font:500 12px Space,Arial,sans-serif;color:var(--muted)}
.footer-signature span{display:inline-block;margin-left:12px;color:var(--accent);font-size:18px}
.mobile-tip{display:none}
.touch-controls{display:none}
.game-toast{position:absolute;top:42%;left:0;right:0;text-align:center;pointer-events:none;opacity:0;z-index:1;color:var(--accent);font:500 27px Space,Arial,sans-serif;letter-spacing:2px;text-shadow:0 2px 18px var(--board),0 2px 5px var(--board)}
.game-toast.visible{animation:toast 1.3s ease-out forwards}
.game-toast small{display:block;font:400 12px DM,Arial,sans-serif;letter-spacing:1px;margin-top:8px}
@keyframes toast{0%{opacity:0;transform:translateY(10px)}15%,65%{opacity:1}100%{opacity:0;transform:translateY(-14px)}}
.help-dialog{color:var(--text);background:var(--bg);border:1px solid var(--border);border-radius:14px;padding:26px 32px 32px;width:min(460px,calc(100vw - 30px));max-height:90svh;box-shadow:0 20px 120px #0005}
.help-dialog::backdrop{background:#08110bc2;backdrop-filter:blur(6px)}
.dialog-heading{display:flex;align-items:center;justify-content:space-between}
.help-dialog h2{font:500 34px Space,Arial,sans-serif;letter-spacing:-1px;margin:15px 0}
.help-dialog p{font-size:12px;color:var(--muted);line-height:1.8}
.controls-list{margin:23px 0}
.controls-list>div{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);padding:9px 0;font-size:12px}
.controls-list dd{margin:0}
.controls-list kbd{min-width:24px;height:24px}
.help-tip{background:var(--surface);padding:15px 18px;border-radius:6px;font-size:11px}
.help-tip strong{font-weight:600;color:var(--accent)}
.help-tip p{font-size:11px;margin:5px 0 0}
.help-dialog .scoring-note{font-size:11px;margin:19px 0 22px}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.noscript{position:fixed;bottom:20px;left:20px;background:var(--accent);color:var(--accent-ink);padding:20px;z-index:10}
@media(min-width:1500px){:root{--board-height:min(68vh,700px)}.game-layout{gap:60px;grid-template-columns:250px auto 156px}h1{font-size:42px}.left-column{padding-top:49px}.scoreboard{margin-top:55px}.score-primary strong{font-size:68px}}
@media(max-height:800px) and (min-width:761px){:root{--board-height:560px}.site-header{height:76px}.game-layout{padding-top:25px;padding-bottom:25px}.site-footer{min-height:58px}.intro h1{font-size:34px}.scoreboard{margin-top:28px}.zen-note{display:none}.personal-note{margin-top:18px}}
@media(max-width:1050px){.site-wrap{padding:0 30px}.game-layout{gap:26px;grid-template-columns:200px auto 125px}.header-caption{font-size:8px}.intro h1{font-size:34px}.piece-panel{padding:14px}.score-primary strong{font-size:53px}.footer-note{font-size:7px;letter-spacing:.8px}.keyboard-legend{gap:11px}}
@media(max-width:850px){.header-caption{display:none}.game-layout{grid-template-columns:175px auto 110px;gap:20px}.intro h1{font-size:30px}.intro-copy{font-size:11px}.eyebrow{font-size:8px}.run-stats{gap:38px}.panel-heading .label{font-size:7px}.piece-panel{padding:12px}.keyboard-legend{display:none}.game-actions .utility-button{font-size:10px;gap:6px}}
@media(max-width:760px){
  :root{--board-height:min(55svh,calc((100vw - 114px)*2),570px)}
  .site-wrap{padding:0 20px;max-width:520px;min-height:100svh}
  .site-header{height:69px;gap:10px}
  .brand{font-size:27px;gap:10px}.brand-mark{grid-template-columns:repeat(3,6px);grid-template-rows:repeat(2,6px);gap:2px}
  .preferences{gap:1px}.icon-button{width:34px;height:34px}.icon-button .icon{width:17px;height:17px}.preference-divider{margin:0 9px;height:18px}.theme-toggle{min-width:78px;font-size:11px;padding:8px 11px;gap:7px}
  .game-layout{grid-template-columns:auto 64px;column-gap:12px;row-gap:0;padding:18px 0 15px;margin:0;justify-content:center;align-content:start;flex:1}
  .left-column{grid-column:1/-1;padding:0}.intro,.level-progress,.personal-note{display:none}
  .scoreboard{display:grid;grid-template-columns:1fr .85fr 1.35fr;gap:14px;align-items:center;margin:0 0 11px}
  .score-primary .label,.best-score .label,.run-stats .label{font-size:7px;letter-spacing:1px}
  .score-primary strong{font-size:30px;letter-spacing:-1px;line-height:1.4}
  .best-score{display:flex;flex-direction:column;align-items:flex-start;gap:5px;margin:0;align-self:start;padding-top:0}
  .best-score .label{font-size:6px;letter-spacing:.5px;gap:3px;white-space:nowrap}.best-score .icon{height:9px;width:9px}
  .best-score strong{font-size:21px;line-height:1.6;letter-spacing:-.5px}
  .run-stats{border-top:0;border-left:1px solid var(--border);padding:0 0 0 17px;gap:20px;align-self:start}.run-stats strong{font-size:23px;margin-top:2px;line-height:1.65}
  .play-column{width:calc(var(--board-height)/2 + 14px)}
  .board-caption{height:22px;margin-bottom:4px;font-size:6px;letter-spacing:.85px}.status-dot{height:4px;width:4px}.board-caption>span:first-child{gap:5px}
  .board-shell{padding:6px;border-radius:8px}.board-overlay{inset:6px}.overlay-content{padding:0 14px;transform:translateY(-5px)}
  .overlay-symbol{grid-template-columns:repeat(3,11px);grid-template-rows:repeat(2,11px);margin-bottom:20px;gap:2px}
  .overlay-content .eyebrow{font-size:7px;letter-spacing:1px}.overlay-content h2{font-size:28px;letter-spacing:-1.1px;margin-top:14px;margin-bottom:12px}
  .overlay-description{font-size:11px;margin-bottom:22px}.overlay-content .primary-button{max-width:185px;padding:14px 16px;font-size:12px}.start-hint{display:none}
  .board-bottom{font-size:5px;letter-spacing:.7px;padding-top:9px}
  .right-column{padding-top:26px}.piece-panel{padding:10px 7px;border-radius:6px}.panel-heading .label{font-size:6px;letter-spacing:.7px}.panel-dots,.panel-heading kbd{display:none}
  #next{height:min(26svh,225px);margin-top:5px}.hold-panel{margin-top:10px}#hold{height:42px;margin:5px 0 0}#hold-hint{display:none}
  .game-actions{margin-top:10px;gap:3px;align-items:center}.game-actions .utility-button{justify-content:center;flex-direction:column;gap:6px;padding:9px 0;font-size:8px;width:100%}.utility-button .icon{width:17px;height:17px}.utility-button kbd{display:none}.zen-note{display:none}
  .touch-controls{grid-column:1/-1;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:19px;user-select:none;-webkit-user-select:none}
  .touch-controls button{background:var(--surface);border:1px solid var(--border);border-radius:6px;min-height:47px;display:flex;align-items:center;justify-content:center;gap:8px;touch-action:none}
  .touch-controls button:active{background:var(--surface-hover)}.touch-controls .icon{width:19px;height:19px}.touch-controls span{font-size:8px;letter-spacing:1px}
  .touch-controls [data-action=hold]{grid-column:span 2;min-height:37px}.touch-controls .touch-drop{grid-column:span 2;min-height:37px;background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
  .touch-controls .touch-drop:active{filter:brightness(.9);background:var(--accent)}
  .site-footer{min-height:50px;padding-bottom:env(safe-area-inset-bottom);gap:10px}.footer-note{display:none}.mobile-tip{display:block;font-size:8px}.footer-signature{font-size:10px}.footer-signature span{font-size:14px;margin-left:5px}
  .game-toast{font-size:22px}.game-toast small{font-size:11px}
}
@media(max-width:380px){.site-wrap{padding:0 15px}.preferences .preference-divider{margin:0 5px}.preferences .icon-button{width:31px}.overlay-content h2{font-size:25px}.overlay-description{font-size:10px}.scoreboard{gap:10px}.run-stats{gap:16px;padding-left:12px}.overlay-symbol{margin-bottom:15px}.touch-controls{gap:6px}}
@media(max-height:700px) and (max-width:760px){:root{--board-height:min(52svh,calc((100vw - 114px)*2))}.site-header{height:58px}.game-layout{padding-top:12px;padding-bottom:12px}.overlay-content h2{font-size:24px}.overlay-symbol{margin-bottom:13px;grid-template-columns:repeat(3,9px);grid-template-rows:repeat(2,9px)}.overlay-description{margin-bottom:16px;font-size:10px}.touch-controls{margin-top:14px}.touch-controls button{min-height:39px}.touch-controls [data-action=hold],.touch-controls .touch-drop{min-height:32px}.site-footer{min-height:40px}}
@media(pointer:coarse) and (min-width:761px){.touch-controls{grid-column:2;display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.touch-controls button{background:var(--surface);border:1px solid var(--border);border-radius:5px;padding:10px;display:flex;align-items:center;justify-content:center;gap:6px;touch-action:none}.touch-controls span{font-size:8px}.touch-controls button:nth-last-child(-n+2){grid-column:span 2}.keyboard-legend{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.game-toast.visible{opacity:1}}