:root{--player-x: #2563eb;--player-o: #dc2626;--page-pad: 12px;--gap-macro: clamp(6px, 1.2vh, 12px);--gap-micro: clamp(3px, .8vh, 6px);--micro-border: 3px;--pad-board: clamp(4px, .9vh, 10px);--topbar-h: 180px;--macro-w: calc(100vw - (var(--page-pad) * 2) - (var(--gap-macro) * 2));--macro-h: calc(100svh - (var(--page-pad) * 2) - var(--topbar-h) - 12px);--board: clamp( 96px, min(calc(var(--macro-w) / 3), calc(var(--macro-h) / 3)), 220px );--cell-raw: calc( ( var(--board) - (var(--micro-border) * 2) - (var(--pad-board) * 2) - (var(--gap-micro) * 2) ) / 3 );--cell: min(54px, var(--cell-raw));--fg: rgba(255, 255, 255, .92);--fg-muted: rgba(255, 255, 255, .7);--panel: rgba(255, 255, 255, .06);--radius: 18px;--shadow-1: 0 10px 35px rgba(0, 0, 0, .45);--shadow-2: 0 6px 18px rgba(0, 0, 0, .35);--inner: inset 0 1px 0 rgba(255, 255, 255, .1);--btn-bg: rgba(255, 255, 255, .1);--btn-bg-hover: rgba(255, 255, 255, .14);--btn-border: rgba(255, 255, 255, .18);--t-fast: .12s}html{height:100%;margin:0;overflow:hidden}body{height:100%;margin:0;padding:var(--page-pad);box-sizing:border-box;font-family:MedievalSharp,cursive;color:var(--fg);overflow:hidden;background:linear-gradient(180deg,#fff3,#ffffff0d),url(/bg.webp);background-size:cover;background-position:center;background-attachment:fixed}.container{display:flex;flex-direction:column;gap:clamp(10px,2vh,20px);position:relative;z-index:1;padding:clamp(10px,2vw,24px);box-sizing:border-box}.topBar{position:relative;display:flex;justify-content:center;align-items:center}.headerActions{position:absolute;left:0;display:flex;gap:10px;align-items:center}.headerActions button{background:#fff;color:#1f2430;border:1px solid #ccc;border-radius:6px;padding:6px 12px;cursor:pointer;font-family:MedievalSharp,cursive}.headerActions button:hover{background:#f2f2f2}.turnHero{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:clamp(10px,2.2vh,16px) clamp(14px,4vw,50px);border-radius:16px;background:#ffffff40;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.4);box-shadow:0 10px 30px #00000026}.turnPlayer{font-size:clamp(40px,7vw,64px);font-weight:800;line-height:1;margin-top:6px;text-shadow:0 2px 0 #fff,0 4px 6px rgba(0,0,0,.3);transform:skew(-4deg)}.player-X{color:var(--player-x)}.player-O{color:var(--player-o)}.turnText{font-size:40px;letter-spacing:2px}.smallTurnText{font-size:clamp(16px,3.5vw,25px);text-align:center;color:#fff}.macro-board{display:grid;grid-template-columns:repeat(3,var(--board));gap:var(--gap-macro);margin:0 auto;width:fit-content;box-sizing:border-box;padding:14px;border-radius:22px;background:radial-gradient(520px 320px at 50% 0%,rgba(255,255,255,.22),transparent 70%),linear-gradient(180deg,#ffffff24,#ffffff0f);border:1px solid rgba(255,255,255,.4);box-shadow:0 22px 70px #0000002e,0 6px 18px #0000001a;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transform:translateZ(0)}.micro-board{width:var(--board);aspect-ratio:1 / 1;border:var(--micro-border) solid rgba(255,255,255,.35);padding:var(--pad-board);position:relative;display:grid;place-items:center;box-sizing:border-box;overflow:hidden}.micro-grid{display:grid;grid-template-columns:repeat(3,var(--cell));grid-template-rows:repeat(3,var(--cell));gap:var(--gap-micro)}.cell{width:var(--cell);height:var(--cell);font-size:clamp(16px,calc(var(--cell) * .45),28px);font-weight:700;font-family:MedievalSharp,cursive;cursor:pointer;box-sizing:border-box;border-radius:7px;border:1px solid rgba(255,255,255,.65);background:radial-gradient(60px 40px at 30% 20%,rgba(255,255,255,.85),transparent 60%),linear-gradient(180deg,#ffffff73,#ffffff2e),#ffffff40;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 8px 18px #00000026,inset 0 1px #ffffffe6,inset 0 -4px 10px #00000014;color:#1f2430;transition:transform var(--t-fast) ease,filter var(--t-fast) ease,box-shadow var(--t-fast) ease}.cell:hover:enabled{transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 12px 28px #0000002e,inset 0 1px #fff,inset 0 -6px 14px #00000014}.cell:disabled{opacity:1;color:inherit;-webkit-text-fill-color:currentColor}.cell.utt-mark-x,.cell.utt-mark-x:disabled{color:var(--player-x);text-shadow:0 0 22px rgba(37,99,235,.3)}.cell.utt-mark-o,.cell.utt-mark-o:disabled{color:var(--player-o);text-shadow:0 0 22px rgba(220,38,38,.3)}.active{outline:2px solid white;outline-offset:0}.dimmed{opacity:.4}.winner-overlay{position:absolute;inset:0;z-index:10;border-radius:inherit;display:grid;place-items:center;background:radial-gradient(220px 160px at 50% 35%,#ffffff73,#ffffff26 70%),#fff3;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);font-weight:900;font-size:64px;text-shadow:0 6px 20px rgba(0,0,0,.25),0 1px 0 rgba(255,255,255,.6)}.winner-overlay.utt-mark-x{color:var(--player-x);text-shadow:0 0 26px rgba(37,99,235,.45)}.winner-overlay.utt-mark-o{color:var(--player-o);text-shadow:0 0 26px rgba(220,38,38,.45)}.overlay{position:fixed;inset:0;background:#00000073;display:grid;place-items:center;z-index:999}.modal{background:#fffffff5;border:1px solid rgba(255,255,255,.5);border-radius:14px;padding:18px 20px;width:min(360px,90vw);box-sizing:border-box;display:grid;gap:14px;text-align:center;box-shadow:var(--shadow-1);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.modalTitle{font-size:22px;font-weight:900;color:#0f172a;text-shadow:0 2px 10px rgba(0,0,0,.25),0 1px 0 rgba(255,255,255,.65)}.modalActions{display:flex;gap:10px;justify-content:center}.modalBtn{padding:10px 12px;border:1px solid #d1d5db;border-radius:12px;background:#fff;color:#1f2430;cursor:pointer;font-family:MedievalSharp,cursive}.modalBtn:hover{background:#f2f2f2}.modalBtn.secondary{background:#f7f7f7}.utt-shell{min-height:100vh;display:grid;place-items:center;padding:28px 16px;box-sizing:border-box}.utt-panel{background:var(--panel);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);box-shadow:var(--shadow-1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.utt-card{width:min(560px,92vw);padding:26px;display:grid;gap:18px}.utt-brand{display:grid;gap:8px;text-align:center}.utt-kicker{letter-spacing:.18em;text-transform:uppercase;font-size:12px;opacity:.85;color:var(--fg-muted)}.utt-title{font-family:MedievalSharp,cursive;font-weight:800;letter-spacing:.5px}.utt-h1{font-size:clamp(32px,4vw,48px);margin:0;color:#000}.utt-muted{color:#323232}.utt-menu{display:grid;gap:12px}.utt-btn{appearance:none;border:1px solid var(--btn-border);background:linear-gradient(180deg,var(--btn-bg),rgba(255,255,255,.06));color:#000;border-radius:999px;padding:10px 16px;box-shadow:var(--shadow-2),var(--inner);cursor:pointer;transition:transform var(--t-fast),background var(--t-fast),border-color var(--t-fast);font-family:MedievalSharp,cursive}.utt-btn:hover{background:linear-gradient(180deg,var(--btn-bg-hover),rgba(255,255,255,.07));border-color:#ffffff47;transform:translateY(-1px)}.utt-btn:active{transform:translateY(0) scale(.99)}.utt-btn--big{width:100%;padding:14px 18px;font-weight:800}.utt-footnote{text-align:center;font-size:13px;color:var(--fg-muted)}.utt-rules section{display:grid;gap:6px}.utt-rules h2{margin:10px 0 0;font-size:18px;color:#fff}.utt-rules p{margin:0;line-height:1.5;color:var(--fg-muted)}.utt-rules-actions{margin-top:10px;display:flex;justify-content:center}@media(max-width:520px){body{padding:8px}.topBar{flex-direction:column;gap:10px}.headerActions{position:static;justify-content:center}.turnHero{width:100%;padding:12px 14px}.turnPlayer{font-size:52px}.smallTurnText{font-size:20px}}@media(max-width:380px){:root{--page-pad: 8px}}@media(pointer:coarse){.headerActions button{padding:10px 14px}.cell{font-size:clamp(18px,calc(var(--cell) * .55),30px)}.cell:hover:enabled{transform:none;filter:none;box-shadow:0 8px 18px #00000026,inset 0 1px #ffffffe6,inset 0 -4px 10px #00000014}}