*{box-sizing:border-box}body{margin:0;background:#102b26;color:#f3efdf;font:16px/1.6 system-ui}main{max-width:680px;margin:auto;padding:32px 20px 70px}a{color:#bfd9cc;text-decoration:none}.eyebrow{font-size:10px;letter-spacing:3px;color:#ecc681;margin-top:32px}h1{font-size:clamp(38px,7vw,60px);line-height:1.1;letter-spacing:-2px}h1 span{color:#a9c7b7}section{padding:24px;background:#193b32;border:1px solid #ffffff20;border-radius:22px;margin-top:24px}label{display:block;font-size:13px}input{display:block;width:100%;padding:14px;font:inherit;background:#0f2822;border:1px solid #8ba392;border-radius:10px;color:white;margin:8px 0 16px}button{font:inherit;font-weight:700;cursor:pointer;padding:12px 18px;border:0;border-radius:10px;background:#e9c37f;color:#18332a}#entry button{width:100%}.secondary{background:#284e41;color:#e1e9df;border:1px solid #ffffff25}.divider{text-align:center;font-size:10px;letter-spacing:2px;color:#9db7a9;padding:22px}.room{display:flex;gap:10px;align-items:center;flex-wrap:wrap}#room{margin-right:auto;letter-spacing:2px}#players{display:flex;gap:12px;margin:22px 0}.player{flex:1;min-width:0;overflow-wrap:anywhere;background:#102c24;border-radius:12px;padding:14px;border:1px solid #ffffff14}.player strong{display:block}.mark-X{color:#eac985}.mark-O{color:#7fd9d2}#status{text-align:center;font-size:20px;min-height:32px}#board{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;max-width:390px;margin:24px auto}#board button{aspect-ratio:1;padding:0;background:#0d271f;border:1px solid #ffffff20;font-size:clamp(40px,10vw,68px);border-radius:14px;line-height:1}#board button.win{background:#43653c;border-color:#eac985}#board button:disabled{cursor:default}#board button:not(:disabled):hover{background:#315949}#rematch{display:block;margin:auto}#hint{font-size:12px;color:#aac4b4;text-align:center}#error{color:#ffb4ae}button:focus-visible,a:focus-visible{outline:3px solid #eac985;outline-offset:3px}[hidden]{display:none!important}
/* A welcoming game lobby and a focused match view. */
body{background:radial-gradient(ellipse at 12% 5%,#285c4740,transparent 50%),radial-gradient(ellipse at 100% 95%,#b5934520,transparent 40%),#102921;min-height:100vh}main{max-width:1160px;padding:28px 32px 64px}nav{display:flex;align-items:center;justify-content:space-between;padding-bottom:24px;border-bottom:1px solid #ffffff12;font-size:13px}.nav-brand{font-weight:700;letter-spacing:-.3px;color:#d7dfd1}.nav-brand b{color:#e9c37f;margin-left:8px}.welcome-layout{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(320px,.85fr);align-items:center;gap:70px;padding:44px 0}.welcome .eyebrow{margin-top:0;color:#e9c37f;font-weight:700}.welcome h1{margin:22px 0;font-size:clamp(42px,5.5vw,66px);letter-spacing:-2.5px}.welcome>p:not(.eyebrow){color:#aac3b2;font-size:16px;max-width:450px}.welcome-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.welcome-tags span{font-size:11px;color:#c7d6c9;padding:6px 12px;border:1px solid #c8dbb525;border-radius:30px}.welcome-art{display:block;width:100%;height:auto;max-height:250px;object-fit:cover;border-radius:22px;margin-top:28px;border:1px solid #ffffff10}.welcome .rules-note{font-size:12px!important;line-height:1.8;margin-top:18px;max-width:420px}#entry{margin:0;padding:32px;background:linear-gradient(145deg,#23463a,#16382d);box-shadow:0 24px 70px #0003;border:1px solid #d8e2bb26;border-radius:24px}#entry .eyebrow{margin:0 0 16px;font-weight:700;font-size:9px}#entry h2{font-size:29px;line-height:1.2;letter-spacing:-.8px;margin:0 0 14px}#entry .entry-note{font-size:13px;color:#adc3b4;margin-bottom:26px}#entry label{color:#d8dfd2;font-size:12px;font-weight:600}input{border-color:#839d8255;background:#102c24;transition:border-color .15s;min-height:50px}input:focus{outline:2px solid #e9c37f;outline-offset:2px}#code{text-transform:uppercase;letter-spacing:3px}#entry button{min-height:50px;display:flex;align-items:center;justify-content:space-between}#entry .secondary{justify-content:center}button{transition:background .15s,transform .15s}button:not(:disabled):hover{filter:brightness(1.08);transform:translateY(-1px)}.divider{display:flex;align-items:center;gap:14px;font-size:9px;letter-spacing:1.5px;padding:24px 0}.divider:before,.divider:after{content:'';height:1px;background:#ffffff16;flex:1}#error:not(:empty){padding:12px 18px;background:#d4585819;border:1px solid #ffaaaa33;border-radius:10px}#game{max-width:720px;margin:32px auto;padding:28px 36px;background:linear-gradient(145deg,#204536,#143429);box-shadow:0 22px 70px #0003}#players .player{padding:16px 20px;border-radius:14px}#players .player strong{font-size:17px}#players .player span{font-size:12px;color:#adc6b4}#board{max-width:390px;gap:12px;margin:28px auto}#board button{background:#0c251e;box-shadow:inset 0 1px 4px #0003;border-color:#93b18b25;border-radius:18px;font-weight:600;transition:background .15s}#board button.win{background:#3e6544;box-shadow:0 0 20px #dfc77d15;border-color:#e9c37f}#status{color:#e8d4a6;font-size:19px;font-weight:600}.room button{font-size:12px;padding:9px 12px}.room #room{font-size:12px;color:#d3c797}.in-match .welcome-layout{display:none}@media(max-width:800px){main{padding:20px 18px 42px}.welcome-layout{gap:30px;grid-template-columns:1fr;padding-top:30px}.welcome-art{max-height:190px}.welcome h1 br{display:none}.welcome h1 span{display:block;margin-top:6px}.welcome h1{font-size:42px}.welcome .rules-note{display:none}#entry{padding:26px}#game{padding:20px 16px}#board{gap:9px}#players .player{padding:12px}.nav-brand{font-size:12px}}@media(prefers-reduced-motion:reduce){button{transition:none}button:not(:disabled):hover{transform:none}}
#board{position:relative}
.winning-line{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:2}
.winning-line line{stroke:#f6cf81;stroke-width:5;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:0;filter:drop-shadow(0 2px 3px #0006);animation:draw-winner .55s ease-out both}
.winning-line.winner-O line{stroke:#7fd9d2}
@keyframes draw-winner{from{stroke-dashoffset:1}to{stroke-dashoffset:0}}
@media(prefers-reduced-motion:reduce){.winning-line line{animation:none}}