:root{--bg:#fff;--fg:#3c3c3c}*{box-sizing:border-box}html,body{margin:0;min-height:100%}body{background:var(--bg);color:var(--fg);font-family:'Courier New',Courier,monospace;touch-action:manipulation}.wrap{max-width:840px;min-height:100svh;margin:auto;padding:30px 44px 24px;display:flex;flex-direction:column}.masthead{display:flex;justify-content:flex-end;align-items:center}.brand-mark{display:block;width:155px;height:47px;background:var(--fg);mask:url('assets/xpress-logo.png') center/contain no-repeat;-webkit-mask:url('assets/xpress-logo.png') center/contain no-repeat}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.play-area{margin-top:64px}.game-shell{position:relative}.game-heading{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1px;opacity:.55;padding:0 10px}canvas{width:100%;height:auto;display:block;image-rendering:pixelated;cursor:pointer;touch-action:none}canvas:focus-visible{outline:2px dashed currentColor;outline-offset:4px}.hint{font-size:10px;text-align:center;line-height:1.8;margin:12px 0;opacity:.6}.hint span{display:block}kbd{font:inherit;border:1px solid currentColor;padding:2px 5px}.brand-copy{text-align:center;padding:35px 0 28px}.brand-copy h1{font-size:clamp(17px,3vw,25px);line-height:1.55;font-weight:400;letter-spacing:-.7px;margin:0}.brand-copy strong{font-weight:700}.panels{display:flex;gap:24px;align-items:flex-start;justify-content:center;margin:0 0 28px}.panel{flex:1;max-width:360px;border:1px solid currentColor;padding:20px}.panel[hidden],button[hidden],[hidden]{display:none!important}.panel h2{font-size:17px;margin:0 0 18px}.panel p,label,.msg{font-size:12px;line-height:1.5}.board{border:0;padding:10px;max-width:340px;font-size:12px}.board[open]{border:1px solid currentColor;padding:20px}.board summary{cursor:pointer;letter-spacing:2px}.board small{font-size:9px;letter-spacing:.5px;opacity:.6;margin-left:10px}.board[open] summary{margin-bottom:14px}.row{display:flex;gap:8px}label{display:block;margin:16px 0 8px}input{font:22px 'Courier New',monospace;width:7ch;min-width:7ch;flex:0 0 7ch;letter-spacing:4px;padding:10px 8px;background:transparent;color:inherit;border:1px solid currentColor;text-transform:uppercase;text-align:center}button{font:700 11px 'Courier New',monospace;letter-spacing:1px;cursor:pointer;background:var(--fg);color:var(--bg);border:1px solid var(--fg);padding:12px 16px}button:disabled{opacity:.4;cursor:default}button:focus-visible,input:focus-visible,summary:focus-visible,a:focus-visible{outline:2px dashed var(--fg);outline-offset:3px}.secondary{width:100%;margin-top:12px;background:transparent;color:inherit}.msg{min-height:18px}.name-help{opacity:.6;font-size:10px!important}#leaderboard{list-style:none;margin:0;padding:0;font-size:13px}#leaderboard li{display:flex;gap:14px;padding:9px 8px;border-top:1px solid color-mix(in srgb,var(--fg) 12%,transparent)}.pos{opacity:.5;width:28px}.name{flex:1;letter-spacing:3px}.empty{opacity:.3}.new{background:var(--fg);color:var(--bg)}footer{text-align:center;margin-top:auto;padding-top:36px;font-size:10px}.signature{width:280px;max-width:80%;margin:auto;border-top:1px solid currentColor;padding-top:10px}.signature .brand-mark{margin:auto;width:115px;height:35px}footer p{opacity:.7;font-size:9px;margin-top:12px}footer a{color:inherit;text-underline-offset:3px}.touch-controls{display:none;gap:12px;margin:14px 0}.touch-controls button{flex:1;touch-action:none}@media(pointer:coarse){.touch-controls{display:flex}}@media(max-width:600px){.wrap{padding:20px 18px 20px;min-height:100svh}.brand-mark{width:125px;height:38px}.play-area{margin-top:54px}.game-heading{font-size:8px;letter-spacing:0;gap:8px}.hint{font-size:9px}.brand-copy{padding:35px 0 28px}.panels{flex-direction:column;align-items:center;gap:16px}.panel{width:100%;max-width:360px}.board:not([open]){text-align:center}footer{padding-top:38px}.signature{width:230px}}
.masthead{justify-content:space-between;gap:20px}.languages{display:flex;gap:4px}.languages button{background:transparent;color:var(--fg);border:0;padding:8px;letter-spacing:0}.languages button[aria-pressed=true]{background:var(--fg);color:var(--bg)}.cta{display:inline-block;margin-top:24px;padding:13px 24px;border:1px solid var(--fg);background:var(--fg);color:var(--bg);font-size:12px;font-weight:700;letter-spacing:1px;text-decoration:none}.cta:hover{background:transparent;color:var(--fg)}.hint{opacity:1}.hint p{opacity:.55;font-size:9px;margin-top:13px}.key-guide{display:flex;justify-content:center;gap:30px;align-items:center}.key-guide>div{display:flex;align-items:center;gap:8px}.key-guide strong{font-size:9px;letter-spacing:1px;font-weight:400;opacity:.65}.key-guide span{display:inline;opacity:.5}.keycap{display:inline-flex;align-items:center;justify-content:center;min-width:33px;min-height:31px;padding:4px 9px;border:1px solid currentColor;border-radius:6px 5px 7px 4px;background:var(--bg);color:var(--fg);box-shadow:0 3px 0 var(--bg),0 4px 0 var(--fg);font:bold 16px 'Courier New',monospace;transform:rotate(-1deg)}.space-key{min-width:77px;font-size:9px}.touch-controls .keycap{font-size:12px}.touch-controls .keycap span{margin-left:9px}@media(max-width:600px){.key-guide{gap:16px}.key-guide>div{gap:6px}.key-guide strong{font-size:8px}.keycap{min-width:28px;min-height:28px;padding:3px 6px}.space-key{min-width:62px}.languages button{padding:7px}.cta{font-size:11px}}
.board summary{text-align:center;list-style:none}.board summary::-webkit-details-marker{display:none}.board summary::before{content:"▸";margin-right:8px}.board[open] summary::before{content:"▾"}
.control-key{display:flex;align-items:center;gap:8px;padding:0;background:transparent;color:var(--fg);border:0;letter-spacing:0;touch-action:none;user-select:none;-webkit-user-select:none}.control-key .keycap{opacity:1}.control-key:active .keycap{transform:translateY(3px);box-shadow:none}.key-guide{gap:14px}.key-guide .control-key:last-child{margin-left:16px}@media(max-width:600px),(pointer:coarse){.key-guide .keyboard-only{display:none}.key-guide{gap:18px}.key-guide .control-key{min-height:48px;min-width:125px;padding:8px 15px;border:1px solid currentColor;border-radius:7px 5px 8px 6px;box-shadow:0 3px 0 var(--bg),0 4px 0 var(--fg);justify-content:center}.key-guide .control-key:last-child{margin-left:0}.key-guide .control-key strong{font-weight:700;font-size:11px;opacity:1}.control-key .keycap{border:0;box-shadow:none;min-width:20px}.control-key:active{transform:translateY(3px);box-shadow:none}}
.intro{position:fixed;inset:0;z-index:100;background:var(--bg);color:var(--fg);display:grid;place-items:center;overflow:hidden;animation:intro-exit .5s ease 2.5s forwards}.intro-active{overflow:hidden}.intro-plane{position:absolute;top:calc(50% - 30px);width:115px;height:60px;animation:intro-flight 2.25s linear forwards;will-change:transform}.intro-mark{width:260px;height:85px;opacity:0;animation:intro-reveal .45s ease 1.05s forwards}@keyframes intro-flight{from{transform:translateX(calc(-50vw - 160px))}to{transform:translateX(calc(50vw + 160px))}}@keyframes intro-reveal{from{opacity:0;clip-path:inset(0 100% 0 0)}to{opacity:1;clip-path:inset(0)}}@keyframes intro-exit{to{opacity:0;visibility:hidden}}@media(prefers-reduced-motion:reduce){.intro-plane{animation:none;display:none}.intro-mark{animation:none;opacity:1}.intro{animation:none}}