*{box-sizing:border-box} :root{--paper:#f7f5ed;--ink:#263c30;--muted:#7e8477;--green:#38634b;--yellow:#f0d37b;--line:#dedfd3} body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:.01em}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{color:inherit}button:disabled{opacity:.55;cursor:wait}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #d7ab3d;outline-offset:4px}.hidden{display:none!important}.nav{height:99px;max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:0 30px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;font-size:24px;font-weight:800;gap:10px}.brand-icon{width:38px;height:38px;background:var(--green);color:var(--yellow);border-radius:10px;display:grid;place-items:center;font-size:29px}.brand-small{margin-left:8px;font-size:10px;font-weight:600;letter-spacing:.14em;border-left:1px solid #bdc5b4;padding-left:17px}.plain{background:none;border:0;font-size:13px;padding:10px}.plain span{margin-left:12px}main{max-width:1200px;margin:0 auto;padding:0 30px}.home{display:grid;grid-template-columns:1fr 1fr;column-gap:68px;padding-top:66px}.eyebrow{font-size:11px;letter-spacing:.14em;font-weight:700;display:flex;align-items:center;gap:9px;color:#65715d}.dot{width:7px;height:7px;border-radius:50%;background:#6f9663;display:inline-block;flex-shrink:0}.hero h1{font-size:clamp(52px,5.6vw,78px);line-height:1.24;letter-spacing:-.055em;font-weight:800;margin:27px 0 23px}.marker{position:relative;display:inline-block;z-index:0}.marker:after{content:"";position:absolute;left:-4px;right:0;bottom:5px;height:17px;background:var(--yellow);z-index:-1;transform:rotate(-2deg)}.intro{font-size:16px;line-height:1.9;color:#7c8274;margin-bottom:31px}.hero-actions{display:flex;gap:12px}.primary,.secondary{border-radius:8px;padding:15px 22px;border:1px solid var(--green);display:inline-flex;align-items:center;justify-content:center;gap:28px;font-size:14px;font-weight:650;min-height:48px}.primary{background:var(--green);color:white;box-shadow:0 3px 0 rgba(17,59,33,.12)}.primary:hover{background:#2b533d}.secondary{background:transparent;border-color:#c9d0be}.secondary:hover{background:#eeefe4}.primary span,.secondary span{font-size:19px}.practice{font-size:12px;color:#818575;border:0;background:none;margin:23px 0 27px;padding:0}.practice u{color:var(--ink);text-underline-offset:4px;margin-left:5px}.hero-notes{display:flex;gap:22px;color:#78816f;font-size:11px}.demo-wrap{position:relative;align-self:start;margin-top:10px;padding:23px;border:1px solid #cfd5c5;border-radius:16px;background:#edeedf;box-shadow:11px 14px 0 #e5e8da;transform:rotate(2deg)}.demo-label{display:flex;align-items:center;gap:8px;font-size:11px;font-weight:600;margin-bottom:19px}.label-pill{margin-left:auto;background:#d9e3cf;color:#5f7b55;padding:5px 8px;border-radius:4px;font-size:9px}.demo-board{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;aspect-ratio:1.12}.demo-cell{border:1px solid #d1d8c5;background:#d7dfcd;border-radius:7px;display:grid;place-items:center;font-size:23px;font-weight:750;box-shadow:inset 0 2px 0 #e3e9db}.demo-cell.open{background:#f7f5eb;border-color:#e7e7d9;box-shadow:none}.demo-cell.flag{color:#ad583e;background:#ebd7c9}.demo-cell.accent{background:var(--yellow);border-color:#d5b855;color:#8d6b2d}.demo-bottom{display:flex;align-items:center;gap:13px;margin-top:20px;font-size:11px;color:#6e7964}.avatar-stack{display:flex;padding-left:6px}.avatar-stack i{margin-left:-6px;width:28px;height:28px;display:grid;place-items:center;border:2px solid #edeeDF;border-radius:50%;background:#a96445;color:#fff;font-style:normal;font-size:11px}.avatar-stack i:nth-child(2){background:#68835d}.avatar-stack i:nth-child(3){background:#7990ac}.spark{margin-left:auto;font-size:29px;color:#98a288}.floating-note{position:absolute;right:-19px;bottom:-30px;background:#f8e5a6;border:1px solid #dcc47b;border-radius:4px;padding:12px 16px;transform:rotate(-6deg);font-size:12px;box-shadow:2px 3px 0 #dad8c1}.floating-note span{font-size:18px;margin-left:15px}.steps{grid-column:1/-1;border-top:1px solid var(--line);margin-top:75px;padding:34px 0 45px;display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.steps>div{display:flex;gap:18px;align-items:center}.steps>div+div{border-left:1px solid var(--line);padding-left:42px}.steps b{font-size:27px;font-weight:500;color:#a7b195}.steps strong{display:block;font-size:14px;margin-bottom:6px;font-weight:600}.steps small{font-size:11px;color:#8b8e80}footer{max-width:1140px;margin:0 auto;border-top:1px solid var(--line);padding:24px 0 28px;color:#9b9d8e;display:flex;justify-content:space-between;font-size:10px}footer i{margin:0 7px}footer>span:last-child{font-size:8px;letter-spacing:.13em}.room{padding:34px 0 40px}.room-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:29px;gap:20px}.room-title{font-size:31px;letter-spacing:-.03em;line-height:1.3;margin:12px 0 8px}.room-top p{color:#858a7b;font-size:12px;margin:0}.room-top-actions{display:flex;gap:15px;align-items:center}.room-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:25px}.play-area{min-width:0}.game-toolbar{border:1px solid var(--line);border-radius:12px 12px 0 0;background:#faf9f1;padding:19px 23px;display:flex;align-items:center;justify-content:space-between;gap:15px}.room-code small{display:block;font-size:10px;color:#858a7b;margin-bottom:6px}.room-code button{font-size:17px;letter-spacing:.16em;font-weight:750;border:0;padding:0;background:none}.game-stats{display:flex;gap:30px}.game-stats span{display:flex;flex-direction:column;gap:5px}.game-stats small{font-size:9px;color:#8b8e81}.game-stats b{font-size:16px;font-weight:600;min-width:40px;font-variant-numeric:tabular-nums}#lives{color:#ae6249;font-size:14px;letter-spacing:2px}.board-shell{position:relative;border:1px solid var(--line);border-top:0;background:#edeedf;padding:27px 18px;min-height:350px;display:grid;align-items:center;overflow:hidden}.board-scroll{overflow-x:auto;width:100%;padding:4px;overscroll-behavior-x:contain}.board{--cell-size:clamp(28px,3.6vw,44px);display:grid;grid-template-columns:repeat(var(--cols,9),var(--cell-size));grid-auto-rows:var(--cell-size);gap:4px;width:max-content;margin:auto;touch-action:pan-x pan-y}.cell{border-radius:6px;border:1px solid #cfd9c4;background:#d9e1d0;box-shadow:inset 0 2px 0 #e6ecdf;font-size:18px;line-height:1;font-weight:750;padding:0;display:grid;place-items:center;position:relative;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;touch-action:manipulation}.cell:hover{filter:brightness(.97)}.cell.open{background:#f9f7ed;border-color:#e6e7d9;box-shadow:none}.cell.flag{background:#eddccb;color:#a86140}.cell.mine{background:#e9ccc0;color:#9d4d3b}.cell.mine:not(.open){background:#e7dccf}.cell[data-by]:after{content:"";position:absolute;width:5px;height:3px;bottom:2px;border-radius:2px;background:var(--by-color)}.cell[data-n="1"]{color:#64817b}.cell[data-n="2"]{color:#718b48}.cell[data-n="3"]{color:#b57551}.cell[data-n="4"]{color:#7c74a3}.cell[data-n="5"],.cell[data-n="6"],.cell[data-n="7"],.cell[data-n="8"]{color:#ac5967}.board-overlay{position:absolute;inset:0;background:#edeee1e8;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px;backdrop-filter:blur(3px)}.overlay-icon{background:#dce5d1;color:#638153;width:62px;height:62px;display:grid;place-items:center;border-radius:50%;font-size:32px}.board-overlay h2{font-size:24px;margin:16px 0 7px}.board-overlay p{font-size:12px;color:#88907c;margin:0 0 22px;max-width:300px;line-height:1.8}.board-footer{display:flex;align-items:center;gap:15px;padding:14px 19px;border:1px solid var(--line);border-top:0;border-radius:0 0 12px 12px;background:#faf9f1}.tool-switch{display:flex;gap:3px;border:1px solid #dce1d1;border-radius:6px;padding:3px;background:#eeefe4;flex-shrink:0}.tool-switch button{padding:7px 13px;border:0;border-radius:4px;background:transparent;font-size:12px}.tool-switch button.active{background:#fffef6;color:#3c6345;box-shadow:0 1px 3px #d5dbc9}.board-footer p{font-size:10px;color:#8a8e80;line-height:1.5}.sync{margin-left:auto;font-size:9px;color:#7d946d;white-space:nowrap;display:flex;gap:5px;align-items:center}.sync i{width:5px;height:5px;border-radius:50%;background:currentColor}.sync.offline{color:#b16f54}.mini-rules{display:flex;justify-content:center;flex-wrap:wrap;gap:18px;margin-top:18px;font-size:10px;color:#8b9280}.team-panel{border:1px solid var(--line);border-radius:12px;padding:22px;align-self:start;background:#faf9f1}.panel-heading{display:flex;justify-content:space-between;align-items:center}.panel-heading h2{font-size:16px;margin:0}.panel-heading>span{font-size:10px;color:#6f815d;padding:4px 7px;border-radius:4px;background:#e9eddf}.panel-sub{font-size:10px;color:#939787;margin:9px 0 19px}.player{display:flex;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid #e9eade}.avatar{width:35px;height:35px;border-radius:50%;display:grid;place-items:center;background:var(--avatar);color:white;flex-shrink:0;font-size:13px;font-weight:650;position:relative}.avatar:after{content:"";width:8px;height:8px;position:absolute;right:-1px;bottom:0;background:#a5afa0;border-radius:50%;border:2px solid #faf9f1}.player.online .avatar:after{background:#83a960}.player-name{font-size:12px;font-weight:600;display:block;max-width:118px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.player-meta{font-size:9px;color:#98a08e;margin-top:4px;display:block}.player-score{margin-left:auto;text-align:right;color:#78856b;font-size:18px;font-weight:650}.player-score small{display:block;font-size:8px;font-weight:400;margin-top:2px}.activity-heading{display:flex;justify-content:space-between;font-size:11px;margin:26px 0 14px;color:#7f8a71}.activity-heading span:last-child{font-size:8px;letter-spacing:.12em;color:#a7ae9a}.events{font-size:10px;color:#929985;line-height:1.9;max-height:175px;overflow:auto}.events>div{padding:4px 0;border-bottom:1px dashed #e7e9dc}.events time{color:#adb3a0;margin-right:7px;font-size:9px}.team-note{display:flex;align-items:center;gap:20px;border-top:1px solid #e6e8da;margin-top:22px;padding-top:14px}.team-note>span{font-size:35px;color:#babf9d}.team-note p{font-size:12px;line-height:1.8;color:#a3aa91;margin:0}.claim{font-size:10px;color:#a36e43;padding:14px 0 0}.result{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:18px;padding:22px;border:1px solid #d4ddc4;border-radius:12px;background:#e9eddb}.result.loss{background:#f0e3d5;border-color:#e2cbb7}.result span{font-size:10px;color:#7b8d59}.result h2{font-size:20px;margin:7px 0}.result p{font-size:11px;color:#8a9377;margin:0;line-height:1.8}.result button{white-space:nowrap;font-size:12px;padding:12px 18px}dialog{border:1px solid #d5d9c8;border-radius:16px;background:var(--paper);color:var(--ink);width:460px;max-width:calc(100vw - 28px);padding:30px;box-shadow:0 15px 70px #25382b30}dialog::backdrop{background:#26392b6b;backdrop-filter:blur(4px)}.dialog-top{display:flex;justify-content:space-between;align-items:center}.close{width:32px;height:32px;border:0;background:#e9eddf;border-radius:50%;font-size:23px;display:grid;place-items:center}.dialog-top .eyebrow{font-size:10px}dialog h2{font-size:26px;margin:17px 0 9px}dialog p{font-size:12px;line-height:1.8;color:#8a917e}label{font-size:12px;font-weight:600;display:block;margin:21px 0 9px}input,textarea{width:100%;padding:13px 14px;background:#fffef6;color:var(--ink);border:1px solid #d9decc;border-radius:7px;font-size:13px;resize:none}input::placeholder{color:#a1a58e}#join-code{letter-spacing:.2em;text-transform:uppercase}.level-options{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.level-options button{border:1px solid #d9decc;background:transparent;border-radius:7px;padding:13px 4px;font-size:12px}.level-options strong{display:block;font-size:12px;margin-bottom:7px}.level-options span{font-size:9px;color:#909b7f}.level-options button.selected{border-color:#749c66;background:#e8eddf;color:#466c42}.wide{width:100%;margin-top:10px}.form-error{min-height:18px;color:#b36748!important;margin:14px 0 2px;font-size:11px}.form-note{display:block;text-align:center;font-size:9px;color:#a3a993;margin-top:16px}.rules-list p{margin:20px 0}.rules-list b{display:block;color:#59774b;font-size:12px;margin-bottom:5px}.rules-foot{border-top:1px solid var(--line);padding-top:15px;font-size:10px!important}.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:#283e30;color:#fffef2;padding:13px 22px;border-radius:8px;box-shadow:0 4px 16px #16231c24;z-index:50;font-size:12px;max-width:calc(100vw - 32px);text-align:center;line-height:1.6}
@media(min-width:1500px){.home{padding-top:80px}.steps{margin-top:90px}}@media(max-width:950px){.home{gap:40px}.hero h1{font-size:57px}.hero-actions{gap:8px}.hero-actions button{padding:13px 17px;gap:14px}.demo-wrap{padding:18px}.demo-cell{font-size:18px}.hero-notes{gap:12px;font-size:10px}.room-layout{grid-template-columns:minmax(0,1fr) 240px;gap:18px}.team-panel{padding:17px}.game-stats{gap:17px}.board-footer{gap:8px;padding:12px}.board-footer p{font-size:9px}.room-top-actions{gap:5px}}@media(max-width:700px){.nav{height:75px;padding:0 21px}.brand{font-size:21px}.brand-icon{width:33px;height:33px}.brand-small{font-size:8px;padding-left:12px;margin-left:3px}.nav>.plain{font-size:11px;padding-right:0}main{padding:0 22px}.home{display:flex;flex-direction:column;gap:0;padding-top:36px}.hero h1{font-size:59px;line-height:1.19;margin:24px 0 21px}.eyebrow{font-size:10px}.intro{font-size:14px;margin-bottom:23px}.hero-actions button{padding:14px 20px;font-size:13px;gap:28px}.hero-actions{gap:12px}.practice{margin:19px 0 22px}.hero-notes{font-size:10px;gap:20px}.demo-wrap{width:calc(100% - 12px);max-width:390px;align-self:center;margin-top:38px;padding:21px;box-shadow:8px 9px 0 #e5e8da;transform:rotate(1deg)}.demo-board{gap:5px}.demo-cell{font-size:21px}.floating-note{right:-9px;bottom:-20px;padding:10px 13px;font-size:10px}.steps{display:flex;flex-direction:column;gap:22px;margin-top:55px;padding:27px 0 30px}.steps>div+div{border-left:0;padding-left:0}.steps b{font-size:25px}.steps strong{font-size:13px}.steps small{font-size:11px}footer{margin:0 22px;padding:20px 0;font-size:9px}footer>span:last-child{display:none}.room{padding-top:27px}.room-top{align-items:start;gap:10px;margin-bottom:21px}.room-top .eyebrow{font-size:7px;letter-spacing:.1em}.room-title{font-size:25px;margin:12px 0 8px}.room-top p{font-size:10px}.room-top-actions{flex-direction:column;gap:4px;align-items:flex-end}.room-top-actions .secondary{font-size:10px;padding:10px 12px;min-height:38px}.room-top-actions>.plain{font-size:10px;padding:5px 10px}.room-layout{display:flex;flex-direction:column;gap:25px}.game-toolbar{padding:14px 15px}.game-stats{gap:18px}.game-stats small{font-size:8px}.game-stats b{font-size:14px;min-width:30px}#lives{font-size:11px;letter-spacing:1px}.room-code button{font-size:14px;letter-spacing:.12em}.room-code small{font-size:8px}.board-shell{padding:19px 10px;min-height:310px}.board{--cell-size:clamp(28px,7.2vw,36px);gap:3px}.cell{font-size:16px;border-radius:4px}.board-footer{padding:10px;flex-wrap:wrap;gap:8px}.board-footer p{margin:0;font-size:8px;flex:1}.tool-switch button{font-size:10px;padding:7px 9px}.sync{font-size:8px}.mini-rules{font-size:8px;gap:10px;margin-top:14px}.team-panel{align-self:stretch;padding:19px}.panel-sub{margin-bottom:8px}.player{padding:10px 0}.player-name{max-width:220px}.events{max-height:120px}.team-note{display:none}.activity-heading{margin-top:20px}.result{padding:17px;gap:12px}.result h2{font-size:16px}.result button{padding:11px 12px;font-size:10px}.result p{font-size:9px}dialog{padding:24px}dialog h2{font-size:24px}.board-overlay h2{font-size:22px}.board-overlay p{font-size:11px}.board-overlay>.primary{font-size:12px}}@media(prefers-reduced-motion:no-preference){.primary,.secondary,.cell{transition:background .15s,transform .15s}.primary:active,.secondary:active{transform:translateY(2px)}.cell:active{transform:scale(.95)}}


/* Shared-board competition and large boards. */
.mode-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.mode-options button{border:1px solid #d9decc;background:transparent;border-radius:7px;padding:13px 8px}
.mode-options button.selected{border-color:#749c66;background:#e8eddf;color:#466c42}
.mode-options strong{display:block;font-size:12px;margin-bottom:7px}
.mode-options span,.mode-note{font-size:10px;color:#909b7f}
.level-options{grid-template-columns:repeat(2,minmax(0,1fr))}
.board-scroll{overflow:auto;max-height:min(65vh,650px);overscroll-behavior:contain}
.board-scroll.large .board{--cell-size:30px;gap:3px;margin:0;width:max-content}
.board-scroll.large{height:min(65vh,650px)}
.player.winner{background:#f4edcd;border-radius:6px;padding-left:6px;padding-right:6px}
.player-score.negative{color:#b36748}
#center-button{font-size:10px;padding:5px;white-space:nowrap}
.board-overlay.countdown{pointer-events:auto}
.game-stats #lives.score{font-size:20px;letter-spacing:0}
@media(max-width:700px){.board-scroll.large .board{--cell-size:28px}.board-scroll.large{height:52vh;max-height:52vh}.board-footer #center-button{order:4}.mode-options span{font-size:9px}}

/* Desktop boards fit as a whole; mobile keeps touch-sized, scrollable cells. */
.board-scroll.fitted{overflow:hidden;height:var(--fitted-height,auto);max-height:none;padding:0;overscroll-behavior:auto}
.board-scroll.fitted .board{gap:var(--cell-gap,4px);margin:0 auto}
.board-scroll.fitted .cell{
  font-size:var(--cell-font-size,18px);
  border-radius:var(--cell-radius,6px);
  border-width:var(--cell-border,1px)
}
.board-scroll.fitted .cell:not(.open){box-shadow:inset 0 var(--cell-highlight,2px) 0 #e6ecdf}
.board-scroll.fitted .cell[data-by]:after{
  width:var(--contribution-width,5px);height:var(--contribution-height,3px);bottom:1px
}
@media(min-width:701px){.board-shell{min-height:0;padding:18px}}

/* Give hell boards more room on desktop without changing the mobile layout. */
@media(min-width:701px){
  body.large-room main,body.large-room .nav{max-width:1600px}
  body.large-room footer{max-width:1540px}
}