:root{--bg:#F7F5F0;--surface:#fff;--ink:#1E2430;--muted:#5B6474;--primary:#2F5BEA;--dot:#E8A33D;--ring:#1F8A80;--given:#E6E2D8;--error:#C8372D;--ok:#23704A}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/24px system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.top{max-width:1040px;margin:0 auto;padding:16px}
.brand{font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
main{max-width:1040px;margin:0 auto;padding:0 16px 32px}
.foot{max-width:1040px;margin:0 auto;padding:24px 16px 48px;display:flex;flex-wrap:wrap;gap:8px 24px;font-size:13px;line-height:18px;font-weight:500}
.foot a,.sub a{color:var(--muted)}
h1{font-size:32px;line-height:38px;font-weight:700;margin:0 0 12px}
h2{font-size:22px;line-height:28px;font-weight:600;margin:0 0 12px}
.lead{color:var(--muted);margin:0 0 24px}.sub{color:var(--muted);margin:0 0 16px}.muted{color:var(--muted)}
.hero{display:grid;gap:24px;padding:8px 0 24px}
.hero-art{justify-self:center;width:100%;max-width:max-content}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 16px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;min-width:44px;padding:0 20px;border-radius:10px;border:2px solid var(--primary);font-weight:600;font-size:16px;line-height:24px;font-family:inherit;text-decoration:none;cursor:pointer}
.btn.primary{background:var(--primary);color:#fff}.btn.secondary{background:transparent;color:#2447c4}
.btn:focus-visible,input:focus-visible,select:focus-visible,.cell:focus-visible,.tab:focus-visible{outline:3px solid rgba(47,91,234,.4);outline-offset:2px}
.actions .btn{flex:1 1 100%}.actions[hidden]{display:none}.warn{margin-top:16px}.warn .btn,#created>.btn{width:100%}#created .actions{margin-bottom:0}.card>.btn.primary{margin-top:4px}
.card{background:var(--surface);border-radius:12px;padding:16px;margin:0 0 16px;box-shadow:0 1px 3px rgba(30,36,48,.12)}
.card.center{text-align:center;margin-top:24px}.prose p,.prose li{max-width:60ch}
label{display:block;font-size:13px;line-height:18px;font-weight:500;color:var(--muted);margin:12px 0 4px}
input,select{width:100%;min-height:44px;padding:8px 12px;border:1px solid #b7bcc7;border-radius:10px;font:inherit;background:#fff;color:var(--ink)}
.form .btn{margin-top:16px}.error{color:#b02a21;min-height:0;margin:8px 0 0}
.steps{display:grid;gap:8px;padding:0;margin:0;list-style:none;counter-reset:s}
.steps li{counter-increment:s;background:var(--surface);border-radius:12px;padding:12px 16px}
.steps li:before{content:counter(s);display:inline-block;width:28px;height:28px;line-height:28px;text-align:center;border-radius:50%;background:var(--primary);color:#fff;margin-right:12px;font-size:13px;font-weight:600}
.grid{display:grid;gap:4px;padding:8px;background:var(--surface);border-radius:12px;width:max-content;max-width:100%;margin:0 auto 16px;box-shadow:0 1px 3px rgba(30,36,48,.12)}
.grid.g6{grid-template-columns:repeat(6,minmax(0,48px))}.grid.g8{grid-template-columns:repeat(8,minmax(0,38px))}
#grid-wrap{min-height:324px}
.cell{display:block;width:100%;aspect-ratio:1;border-radius:8px;border:2px solid #d4d0c4;background:#fff;padding:0;position:relative;cursor:pointer}
.sample .cell{cursor:default}
.cell.given{background:var(--given);cursor:default}
.cell.dot:after,.cell.ring:after{content:"";position:absolute;inset:22%;border-radius:50%}
.cell.dot:after{background:var(--dot)}.cell.ring:after{border:4px solid var(--ring)}
.cell.bad{border-color:var(--error)}
.cell.win{animation:pop .5s ease both}@keyframes pop{50%{transform:scale(1.12)}}
.chips{display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0 0 16px;list-style:none;font-size:13px;line-height:18px}
.chips li{background:var(--surface);border:2px solid #d4d0c4;border-radius:999px;padding:6px 12px;color:var(--muted)}
.chips li b{color:var(--ink)}.chips li.bad{border-color:var(--error);animation:pulse .6s ease 2}
@keyframes pulse{50%{background:#fbe3e0}}
.playbar{text-align:center;margin-bottom:8px}.timer{font-size:20px;font-weight:600;font-variant-numeric:tabular-nums}
.toolbar{display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:8px;max-width:420px;margin:0 auto}.toolbar .btn{padding:0 8px;white-space:nowrap}#created .warn{margin-top:16px}
.banner{text-align:center;color:var(--muted);min-height:24px}
.board .tabs{display:flex;gap:8px;margin-bottom:12px}
.tab{flex:1;min-height:44px;border:0;border-radius:10px;background:var(--bg);font-weight:600;font-size:16px;line-height:24px;font-family:inherit;color:var(--muted);cursor:pointer}
.tab.on{background:var(--primary);color:#fff}.tp{display:none}.tp.on{display:block}
.list{list-style:none;margin:0;padding:0}
.row{display:flex;align-items:center;gap:12px;min-height:56px;border-bottom:1px solid var(--bg);padding:0 8px}
.row.me{background:#eef2fe;border-radius:10px}.rank{width:28px;font-weight:700}.who{flex:1;overflow-wrap:anywhere}
.time{font-variant-numeric:tabular-nums;font-weight:600}.hints{font-size:13px;color:var(--muted);min-width:64px;text-align:right}
.empty{color:var(--muted)}
.result h2{color:var(--ok)}.streak{font-weight:600}
.warn{background:#fdf0d6;border-radius:12px;padding:16px;margin:0 0 16px}
.notice{background:#e3f3ea;color:#16513a;border-radius:10px;padding:12px;margin:0 0 8px;font-weight:500}.notice[hidden]{display:none}
.linkbox{font:600 16px/24px ui-monospace,monospace;background:var(--bg);border-radius:10px;padding:12px;overflow-wrap:anywhere;margin:8px 0}
@media (min-width:720px){
main{padding:0 32px 48px}.top,.foot{padding-left:32px;padding-right:32px}
h1{font-size:44px;line-height:52px}
.hero{grid-template-columns:40% 1fr;align-items:center;gap:48px}
.actions .btn{flex:0 0 auto}#created>.btn,.warn .btn{width:auto}
#grid-wrap{min-height:420px}
.grid.g6{grid-template-columns:repeat(6,minmax(0,64px))}.grid.g8{grid-template-columns:repeat(8,minmax(0,52px))}
.steps{grid-template-columns:repeat(3,1fr)}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important}}

html,body,button,a,.cell,.grid{touch-action:manipulation}
.grid.done .cell{cursor:default}
.cell.hinted{box-shadow:inset 0 0 0 3px var(--accent,#6b4eff)}

/* header menu */
.top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.menu-btn{display:none;align-items:center;gap:8px;min-height:44px;padding:0 14px;border:2px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font-weight:600;font-size:16px;line-height:24px;font-family:inherit;cursor:pointer}
.js .menu-btn{display:inline-flex}
.menu-wrap[hidden]{display:none}
.menu-wrap{position:fixed;inset:0;z-index:50}
.menu-scrim{position:absolute;inset:0;background:rgba(10,14,22,.5)}
.menu{position:absolute;top:0;right:0;bottom:0;width:min(340px,88vw);background:var(--surface);color:var(--ink);padding:16px 16px 32px;overflow-y:auto;box-shadow:-4px 0 24px rgba(0,0,0,.25)}
.menu-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.menu-close{min-height:44px;min-width:44px;padding:0 14px;border:2px solid var(--line);border-radius:10px;background:transparent;color:var(--ink);font-weight:600;font-size:16px;line-height:24px;font-family:inherit;cursor:pointer}
.menu section h2{font-size:13px;line-height:18px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:20px 0 4px}
.menu ul{list-style:none;margin:0;padding:0}
.menu a{display:flex;align-items:center;gap:14px;min-height:48px;padding:0 10px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600}
.menu a:hover{background:var(--bg)}.menu a[aria-current=page]{background:var(--bg);color:var(--link)}
.ic{flex:none}
body.menu-open{overflow:hidden}
:root{--line:#c9ccd4;--link:#2447c4;--btn2:#2447c4}
/* Your teams */
.team-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.team-row{border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.team-row h3{margin:0 0 4px;font-size:18px;line-height:26px}.team-row h3 a{color:var(--ink)}
.team-row p{margin:0 0 4px}.tr-count,.tr-leader{color:var(--muted);font-size:14px;line-height:20px}
.tr-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.btn.small{min-height:44px;padding:0 16px;font-size:15px}
.solo-line{font-weight:600;color:var(--ok);margin:12px 0 0}
.team-row.gone .tr-note{color:var(--muted)}
/* stats, settings, blog */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.stat{background:var(--bg);border-radius:12px;padding:14px;text-align:center}
.stat b{display:block;font-size:28px;line-height:34px;font-variant-numeric:tabular-nums}.stat span{color:var(--muted);font-size:14px}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opt{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;border:2px solid var(--line);border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600}
.opt.on{border-color:var(--primary);background:var(--primary);color:#fff}
.posts{list-style:none;margin:0;padding:0}.post h2{margin:0 0 4px}.post a{color:var(--link)}
.prose a:not(.btn){color:var(--link)}
.ad-slot{display:none}
/* settings */

body[data-hint="0"] #hint{display:none}
/* dark theme */
html[data-theme=dark]{--bg:#12151c;--surface:#1c212c;--ink:#edf0f5;--muted:#aab2c2;--given:#394153;--line:#4a5367;--link:#9db8ff;--btn2:#9db8ff;--error:#ff8a80;--ok:#6fd49c;color-scheme:dark}
@media (prefers-color-scheme:dark){html[data-theme=system]{--bg:#12151c;--surface:#1c212c;--ink:#edf0f5;--muted:#aab2c2;--given:#394153;--line:#4a5367;--link:#9db8ff;--btn2:#9db8ff;--error:#ff8a80;--ok:#6fd49c;color-scheme:dark}}
.btn.secondary{color:var(--btn2)}
.foot a,.sub a{color:var(--muted)}
input,select{background:var(--surface);color:var(--ink);border-color:var(--line)}

.how-dialog{position:absolute;top:5vh;left:50%;transform:translateX(-50%);width:min(560px,94vw);max-height:90vh;overflow-y:auto;background:var(--surface);color:var(--ink);border-radius:16px;padding:16px 20px 24px;box-shadow:0 8px 32px rgba(0,0,0,.35)}
.how-dialog h2{margin:0;font-size:22px;line-height:28px}
.worked h2{font-size:20px;line-height:26px;margin:20px 0 8px}
.ex-row{grid-template-columns:repeat(6,minmax(0,40px))!important;margin:8px 0}
.ex-row .cell{cursor:default}
.back{display:inline-flex;align-items:center;min-height:44px;font-weight:600}
@media(max-width:480px){.ex-row{grid-template-columns:repeat(6,minmax(0,1fr))!important;width:100%}}
.share-card{max-width:100%;height:auto;border-radius:12px;margin:12px 0;display:block}

.foot a{white-space:nowrap}.foot span{flex:0 0 100%}@media(min-width:720px){.foot span{flex:0 0 auto}}
.preview-strip{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px 10px;padding:6px 16px;background:#FFE9B0;color:#3D2C00;border-bottom:2px dashed #B7791F;font-size:13px;line-height:20px}
.pv-badge{background:#3D2C00;color:#FFE9B0;border-radius:4px;padding:0 8px;font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.preview-strip a.pv-btn{color:#3D2C00;font-weight:600;text-decoration:none;border:1.5px solid #3D2C00;border-radius:999px;padding:4px 12px;min-height:28px;background:rgba(255,255,255,.55)}
html[data-theme=dark] .preview-strip{background:#4A3A10;color:#FFE9B0;border-color:#E0A93B}html[data-theme=dark] .pv-badge{background:#FFE9B0;color:#3D2C00}html[data-theme=dark] .preview-strip a.pv-btn{color:#FFE9B0;border-color:#FFE9B0;background:transparent}
@media (prefers-color-scheme:dark){html[data-theme=system] .preview-strip{background:#4A3A10;color:#FFE9B0;border-color:#E0A93B}html[data-theme=system] .pv-badge{background:#FFE9B0;color:#3D2C00}html[data-theme=system] .preview-strip a.pv-btn{color:#FFE9B0;border-color:#FFE9B0;background:transparent}}
/* preview-only link cards */
.lp-grid{display:grid;gap:16px;grid-template-columns:minmax(0,1fr)}@media(min-width:720px){.lp-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.lp-card{border:1px solid var(--line,#d9d5cb);border-radius:12px;overflow:hidden;background:var(--surface)}
.lp-label{margin:0;padding:8px 12px;font-size:13px;font-weight:700;color:var(--muted)}
.lp-img{display:block;width:100%;height:auto}
.lp-text{padding:10px 12px 14px}.lp-text p,.lp-text h3{margin:0}
.lp-host{font-size:12px;line-height:18px;color:var(--muted);text-transform:uppercase}
.lp-title{font-size:16px;line-height:22px;overflow-wrap:anywhere}.lp-desc{font-size:14px;line-height:20px;color:var(--muted);overflow-wrap:anywhere}
/* How to play: a full-screen panel on phones; the rules scroll beneath a pinned heading */
.how-dialog{display:flex;flex-direction:column;overflow:hidden;padding:0}
.how-dialog .menu-head{flex:none;margin:0;padding:12px 20px;border-bottom:1px solid var(--line,#d9d5cb);background:var(--surface)}
.how-dialog .prose{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:12px 20px 24px}
.how-dialog .prose>:first-child{margin-top:0}
@media(max-width:600px){
  .how-dialog{position:fixed;inset:0;top:0;left:0;transform:none;width:100%;max-width:100%;height:100vh;height:100dvh;max-height:none;border-radius:0;box-shadow:none}
  .how-dialog .prose{padding-bottom:calc(24px + env(safe-area-inset-bottom,0px))}
}
.how-wrap,#how-wrap{overscroll-behavior:contain}
.hero>*{min-width:0}