:root{color-scheme:dark;--bg:#0c0b14;--panel:#171422;--panel2:#211b31;--line:#3a3150;--text:#fff;--muted:#aaa2bb;--cyan:#5ee7ed;--lime:#a9ff68;--purple:#9666ff;--danger:#ff6f91;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;width:100%;height:100%;overflow:hidden;background:radial-gradient(circle at 50% -10%,#2e1b4a 0,transparent 40%),var(--bg);color:var(--text)}button,input{font:inherit}button{color:inherit}.game-shell{height:100vh;height:100dvh;max-width:760px;margin:auto;padding:max(8px,env(safe-area-inset-top)) max(10px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(10px,env(safe-area-inset-left));display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;gap:clamp(7px,1.25vh,12px);overflow:hidden;touch-action:none;user-select:none}.game-top{height:44px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:8px}.back,.menu-button,.room-pill,.ghost,.primary,.danger-button,.modal button,.drawer button{border:1px solid var(--line);background:rgba(23,20,34,.94);border-radius:12px;min-height:42px;font-weight:800;cursor:pointer}.back{justify-self:start;padding:0 12px;text-decoration:none;display:flex;align-items:center}.wordmark{font-size:21px;font-weight:950;letter-spacing:-.06em}.wordmark b{padding:3px 5px;border-radius:7px;background:linear-gradient(135deg,#7e4bdf,#a470ff)}.top-actions{justify-self:end;display:flex;gap:6px}.room-pill{padding:0 10px}.menu-button{width:42px;font-size:22px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.stat{min-width:0;padding:7px 8px;border:1px solid var(--line);border-radius:12px;background:rgba(23,20,34,.92);text-align:center}.stat small{display:block;color:var(--muted);font-size:clamp(9px,2.5vw,11px);text-transform:uppercase;letter-spacing:.04em}.stat strong{display:block;overflow:hidden;text-overflow:ellipsis;font-size:clamp(14px,4vw,20px);white-space:nowrap}.life-value{letter-spacing:-2px;color:#ff668c}.board-wrap{min-height:0;display:grid;place-items:center}.board{--gap:clamp(3px,calc(6vmin / var(--size)),11px);position:relative;width:min(100%,calc(100dvh - 190px),570px);aspect-ratio:1;padding:var(--gap);display:grid;grid-template-columns:repeat(var(--size),1fr);grid-template-rows:repeat(var(--size),1fr);gap:var(--gap);border:1px solid #514466;border-radius:clamp(18px,4vmin,28px);background:linear-gradient(145deg,#29213a,#171422);box-shadow:0 18px 70px rgba(0,0,0,.38);touch-action:none}.cell,.tile{border-radius:clamp(7px,2vmin,20px)}.cell{background:rgba(255,255,255,.055)}.tile-layer{position:absolute;inset:var(--gap);display:grid;grid-template-columns:repeat(var(--size),1fr);grid-template-rows:repeat(var(--size),1fr);gap:var(--gap);pointer-events:none}.tile{display:grid;place-items:center;font-weight:950;font-size:clamp(11px,calc(32vmin / var(--size)),54px);letter-spacing:-.055em;color:#fff;box-shadow:inset 0 1px rgba(255,255,255,.22),0 7px 18px rgba(0,0,0,.22);animation:pop .13s ease-out}.tile[data-v="2"]{background:#322b46}.tile[data-v="4"]{background:#493865}.tile[data-v="8"]{background:#6650a4}.tile[data-v="16"]{background:#7654dc}.tile[data-v="32"]{background:#a856e7}.tile[data-v="64"]{background:#df579f}.tile[data-v="128"]{background:#ff6f91}.tile[data-v="256"]{background:#ff8b5d}.tile[data-v="512"]{background:#f4c15d;color:#21170a}.tile[data-v="1024"]{background:#d9ec66;color:#17200a;font-size:clamp(10px,calc(26vmin / var(--size)),44px)}.tile[data-v="2048"]{background:linear-gradient(135deg,var(--cyan),var(--lime));color:#07191b;font-size:clamp(10px,calc(26vmin / var(--size)),44px);box-shadow:0 0 25px rgba(94,231,237,.28)}.tile[data-high="1"]{background:linear-gradient(135deg,#ffd166,#ff4d9d 52%,#8055ff);font-size:clamp(9px,calc(23vmin / var(--size)),38px)}@keyframes pop{from{transform:scale(.7);opacity:.45}}.game-bottom{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.status{min-width:0;color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.status b{color:var(--lime)}.controls{display:flex;gap:6px}.ghost,.primary{padding:0 12px}.primary{color:#10131a;border:0;background:linear-gradient(135deg,var(--cyan),var(--lime))}.toast{position:fixed;z-index:80;left:50%;bottom:calc(18px + env(safe-area-inset-bottom));max-width:min(90vw,460px);padding:11px 16px;border:1px solid #66518a;border-radius:13px;background:#251d36;box-shadow:0 16px 45px rgba(0,0,0,.4);font-weight:800;transform:translate(-50%,120px);opacity:0;transition:.25s}.toast.show{transform:translate(-50%,0);opacity:1}.backdrop{position:fixed;z-index:50;inset:0;display:grid;place-items:center;padding:16px;background:rgba(4,3,8,.76);backdrop-filter:blur(8px)}.modal{width:min(100%,520px);max-height:min(92dvh,720px);overflow:auto;padding:22px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(145deg,#241b35,#13101d);box-shadow:0 30px 100px #000}.modal h2{margin:0 0 9px;font-size:clamp(25px,7vw,38px);line-height:1}.modal p{margin:9px 0;color:var(--muted);line-height:1.5}.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:18px}.modal-actions button,.modal-actions a{min-height:48px;display:flex;align-items:center;justify-content:center;padding:8px 12px;border:1px solid var(--line);border-radius:13px;color:var(--text);background:var(--panel2);font-weight:850;text-decoration:none;text-align:center;cursor:pointer}.modal-actions .wide{grid-column:1/-1}.modal-actions .accent{color:#111;border:0;background:linear-gradient(135deg,var(--cyan),var(--lime))}.countdown{font-variant-numeric:tabular-nums}.drawer-backdrop{position:fixed;z-index:55;inset:0;background:rgba(4,3,8,.68)}.drawer{position:fixed;z-index:56;top:max(8px,env(safe-area-inset-top));right:max(8px,env(safe-area-inset-right));bottom:max(8px,env(safe-area-inset-bottom));width:min(92vw,390px);overflow:auto;padding:17px;border:1px solid var(--line);border-radius:22px;background:#17131f;box-shadow:0 25px 90px #000}.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.drawer h2{margin:0}.drawer-close{width:42px}.menu-list{display:grid;gap:7px}.menu-list button{min-height:50px;padding:0 14px;text-align:left}.menu-list button:hover{border-color:var(--purple)}.menu-list small{display:block;color:var(--muted)}.switch-row{display:flex;justify-content:space-between;align-items:center}.room-card{padding:14px;border:1px solid var(--line);border-radius:15px;background:var(--panel2)}.room-card h3{margin:0 0 6px}.room-card input{width:100%;min-height:46px;margin:8px 0;padding:0 12px;border:1px solid var(--line);border-radius:11px;color:var(--text);background:#100d18}.room-card button{width:100%;margin-top:6px;text-align:center}.leaderboard{display:grid;gap:7px;margin-top:12px}.leader{display:grid;grid-template-columns:auto 1fr auto;gap:9px;align-items:center;padding:10px;border:1px solid var(--line);border-radius:12px}.leader small{display:block;color:var(--muted)}.login-soon{opacity:.72}.hidden{display:none!important}
.modal label{display:grid;gap:6px;margin:10px 0;color:var(--muted);font-weight:750}.modal input{width:100%;min-height:46px;padding:0 12px;border:1px solid var(--line);border-radius:11px;color:var(--text);background:#100d18}.review-note{display:grid;gap:7px;margin:0 0 10px;padding:13px;border:1px solid #ff526f;border-radius:13px;background:rgba(255,56,93,.1)}.review-note b{color:#ff8197}.review-note span{color:var(--muted);line-height:1.4}.leader.review{border-color:#ff526f;background:rgba(255,56,93,.08)}.leader.review strong{color:#ff8197}
.record-value{font-size:clamp(11px,3.2vw,17px)!important}
.quick-toggle{width:34px;min-height:34px;padding:0;border:1px solid var(--line);border-radius:10px;background:rgba(23,20,34,.94);cursor:pointer}.mode-grid{display:grid;gap:10px;margin-top:18px}.mode-card{min-height:105px!important;padding:16px!important;display:grid!important;gap:7px;text-align:left!important}.mode-card b{font-size:20px}.mode-card span{color:var(--muted);font-weight:650;line-height:1.35}.mode-card.accent{border-color:var(--lime);background:linear-gradient(135deg,rgba(94,231,237,.16),rgba(169,255,104,.13))}
.board{--size:var(--cols);--gap:clamp(3px,calc(6vmin / var(--cols)),11px);width:min(100%,calc((100dvh - 190px) * var(--cols) / var(--rows)),620px);max-height:calc(100dvh - 190px);aspect-ratio:var(--cols)/var(--rows);grid-template-columns:repeat(var(--cols),1fr);grid-template-rows:repeat(var(--rows),1fr)}.tile-layer{grid-template-columns:repeat(var(--cols),1fr);grid-template-rows:repeat(var(--rows),1fr)}.tile{font-size:clamp(10px,calc(32vmin / var(--cols)),54px)}
@media(max-width:430px){.quick-toggle{width:31px;min-height:31px;font-size:14px}.top-actions{gap:3px}}
@media(max-height:620px){.game-shell{gap:5px}.game-top{height:38px}.back,.menu-button,.room-pill{min-height:36px}.stat{padding:4px}.game-bottom{min-height:34px}.board{width:min(100%,calc(100dvh - 155px),570px)}}
@media(max-width:430px){.game-shell{padding-left:8px;padding-right:8px}.room-pill{display:none}.stats{gap:4px}.stat{padding-inline:4px}.board{width:min(100%,calc(100dvh - 184px))}.modal-actions{grid-template-columns:1fr}.modal-actions .wide{grid-column:auto}.game-bottom{grid-template-columns:1fr auto}.ghost{display:none}}
@media(min-width:800px){.game-shell{padding-block:18px}.board{width:min(62dvh,570px)}}
@media(prefers-reduced-motion:reduce){.tile,.toast{animation:none;transition:none}}
.board{width:min(100%,calc((100dvh - 225px) * var(--cols) / var(--rows)),620px);max-height:calc(100dvh - 225px)}
.google-login{display:grid!important;grid-template-columns:auto 1fr;align-items:center;gap:11px}.google-login>b{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;color:#4285f4;background:#fff;font-size:20px}.google-login img,.auth-profile img{width:42px;height:42px;border-radius:50%;object-fit:cover}.google-login span{text-align:left}.google-button{min-height:52px;margin:18px 0 10px;display:grid;place-items:center;color:var(--muted)}.auth-error{padding:12px;border:1px solid var(--danger);border-radius:12px;color:#ff9ab1}.auth-profile{text-align:center}.auth-profile img{width:72px;height:72px}.auth-profile h2{margin-top:12px}.auth-note{font-size:13px}
html,body{overscroll-behavior:none}.fullscreen-toggle{font-size:18px}.danger-button{border-color:var(--danger)!important;color:#ff9ab1!important}
@media(pointer:coarse){.game-shell{padding-left:max(14px,env(safe-area-inset-left));padding-right:max(14px,env(safe-area-inset-right));padding-top:max(10px,env(safe-area-inset-top));padding-bottom:max(10px,env(safe-area-inset-bottom))}.backdrop{padding:max(16px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left))}}
@media(max-width:360px){.game-top{gap:4px}.wordmark{font-size:18px}.top-actions{gap:2px}.quick-toggle{width:28px;min-height:30px}.menu-button{width:36px}.back{padding-inline:8px}}
.number-help{padding:12px;border:1px solid var(--line);border-radius:12px;background:rgba(94,231,237,.07)}.tile{white-space:nowrap}
.number-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:9px 16px;margin-top:18px;padding:14px;border:1px solid var(--line);border-radius:14px;background:var(--panel2)}.number-card span{color:var(--muted)}.number-card b{text-align:right;overflow-wrap:anywhere}.number-card sup{color:var(--lime)}
.tile.has-scale{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.02em;line-height:.84}.tile.has-scale span{font-size:.92em}.tile.has-scale small{font-size:.31em;line-height:1;letter-spacing:.02em;opacity:.78}.tile.has-scale sup{font-size:.72em;color:inherit}
.board-stack{width:100%;min-height:0;display:grid;place-items:center;gap:6px}.rebirth-status{min-height:28px;padding:3px 10px;border:1px solid var(--line);border-radius:10px;color:var(--muted);background:rgba(23,20,34,.92);font-size:12px;font-weight:750;cursor:pointer}.rebirth-status b{display:inline-grid;place-items:center;width:20px;height:20px;margin-left:4px;border-radius:50%;color:#111;background:var(--lime)}.room-switcher{display:grid;gap:6px;margin-bottom:10px}.room-switcher>b{color:var(--muted);font-size:12px}.room-choice{display:flex;justify-content:space-between;align-items:center;padding:0 12px!important}.room-choice.active{border-color:var(--lime);background:rgba(169,255,104,.08)}.members-admin{display:grid;gap:6px;margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}.members-admin>div{display:flex;align-items:center;justify-content:space-between;gap:8px}.members-admin button{min-height:34px;padding:4px 9px;color:#ff9ab1;border-color:var(--danger)}
/* Shared PortHub header, compact enough for the game viewport. */
.game-shell header.game-top.pt-site-header{width:100%!important;margin:0!important;padding:4px 6px!important;min-height:48px;height:auto;gap:6px!important}
.game-top #lang{width:58px;min-height:36px;border-radius:9px;font:inherit}
.game-top .top-actions{margin-left:auto}
.game-shell .stat .record-value{display:flex;flex-direction:column;line-height:1.05;gap:2px}
.record-value span:last-child{font-size:.75em;color:var(--muted)}
.room-danger-zone{margin-top:30px;padding-top:18px;border-top:1px solid var(--line)}
.room-danger-zone button{width:100%;color:var(--danger)}
.modal select{width:100%;min-height:46px;background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:10px}
.number-card{overflow-wrap:anywhere}
body>.pt-global-footer{display:none}
@media(max-width:600px){.game-shell header.game-top.pt-site-header{flex-wrap:wrap}.game-top .brand-tagline{display:none!important}.game-top .top-actions{gap:5px}.game-top .back{padding:0 8px;min-height:36px}.game-top .brand-wordmark{font-size:1.1rem!important}.game-top .room-pill{display:none}.game-top .menu-button{width:30px;min-height:34px}.game-top .quick-toggle{width:30px}.game-top #lang{width:52px;font-size:12px}}