/* GridPencil: squared notebook paper, ballpoint blue, pencil grey, red margin line, yellow highlighter. */
@font-face{font-family:Archivo;src:url(fonts/archivo.woff2) format("woff2");font-weight:100 900;font-stretch:62% 125%;font-display:swap}
@font-face{font-family:Caveat;src:url(fonts/caveat.woff2) format("woff2");font-weight:400 700;font-display:swap}
:root{--desk:#e6ecf4;--paper:#fbfdff;--rule:#d5e3f4;--ink:#1f3fbf;--pencil:#23272f;--soft:#5d6679;--red:#d6342f;--hi:#ffe866;--ok:#167a45;--fill:#eef4fc;
 --logic:#ffd9d2;--numbers:#d4e4ff;--paths:#d3f0dc;--colour:#ffe7ad;--memory:#e6dbff;color-scheme:light}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--desk:#080b11;--paper:#10151f;--rule:#1f2c42;--ink:#9db8ff;--pencil:#e8ebf2;--soft:#9aa5ba;--red:#ff7b74;--hi:#6b5a00;--ok:#6fdca6;--fill:#182132;
 --logic:#5a2a25;--numbers:#22365e;--paths:#1f4a30;--colour:#5a4410;--memory:#3a2d63;color-scheme:dark}}
:root[data-theme=dark]{--desk:#080b11;--paper:#10151f;--rule:#1f2c42;--ink:#9db8ff;--pencil:#e8ebf2;--soft:#9aa5ba;--red:#ff7b74;--hi:#6b5a00;--ok:#6fdca6;--fill:#182132;
 --logic:#5a2a25;--numbers:#22365e;--paths:#1f4a30;--colour:#5a4410;--memory:#3a2d63;color-scheme:dark}
.t-logic{--t:var(--logic)}.t-numbers{--t:var(--numbers)}.t-paths{--t:var(--paths)}.t-colour{--t:var(--colour)}.t-memory{--t:var(--memory)}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--desk);color:var(--pencil);font:450 1.02rem/1.6 Archivo,system-ui,-apple-system,"Segoe UI",sans-serif}
h1,h2,p,ol,dl,dd{margin:0}ol{padding:0;list-style:none}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
[hidden]{display:none!important}
.skip{position:absolute;left:8px;top:-60px;background:var(--pencil);color:var(--paper);padding:8px 14px;z-index:20}
.skip:focus{top:8px}
.desk{max-width:1060px;margin:0 auto;padding:0 12px 40px}

h1,h2,.name,.btn,.tab,.no{font-stretch:70%;font-weight:800;letter-spacing:.01em}
h1{font-size:clamp(2rem,1.3rem + 3.4vw,3.4rem);line-height:1;text-wrap:balance}
h2{font-size:clamp(1.5rem,1.2rem + 1.2vw,2rem);line-height:1.1}
.hand{font-family:Caveat,"Bradley Hand",cursive;font-size:1.55rem;line-height:1.1;color:var(--ink);font-weight:600}
.lede{font-size:1.15rem;max-width:56ch;margin-top:12px;color:var(--pencil)}

/* masthead */
.mast{display:flex;align-items:center;gap:14px;padding:18px 4px 14px}
.name{display:inline-flex;align-items:center;gap:10px;font-size:1.7rem;text-decoration:none;line-height:1;margin-right:auto}
.name svg{border:2px solid var(--pencil);background:var(--paper)}
.lr{stroke:var(--rule);stroke-width:1.5}.gi,.glyph .gi{fill:var(--ink)}.gr,.glyph .gr{fill:var(--red)}.glyph .gy{fill:#f2b01e}
.progress{font-family:Caveat,cursive;font-size:1.4rem;color:var(--ok);font-weight:700}
.tog{width:42px;height:42px;border:2px solid var(--pencil);background:var(--paper);border-radius:50%;font-size:1.2rem;line-height:1}

/* divider tabs along the top edge of the sheet */
.tabs{display:flex;gap:4px;padding:0 10px;overflow-x:auto;scrollbar-width:none;align-items:flex-end}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;padding:9px 16px 7px;border:2px solid var(--pencil);border-bottom:0;border-radius:10px 10px 0 0;background:var(--t,var(--paper));text-decoration:none;font-size:1.05rem;white-space:nowrap;position:relative;top:2px;opacity:.82}
.tab:hover{opacity:1}
.tab.here{opacity:1;padding-top:13px;z-index:2;box-shadow:0 2px 0 var(--t,var(--paper))}

/* the sheet of squared paper, with a red margin line on wide screens */
.sheet{position:relative;background-color:var(--paper);border:2px solid var(--pencil);padding:clamp(20px,4vw,44px) clamp(16px,4vw,44px) 48px;
 background-image:linear-gradient(var(--rule) 1px,transparent 1px),linear-gradient(90deg,var(--rule) 1px,transparent 1px);background-size:24px 24px;background-position:-1px -1px}
@media (min-width:860px){.sheet{padding-left:96px}.sheet::before{content:"";position:absolute;left:62px;top:0;bottom:0;width:2px;background:var(--red);opacity:.55}}
.sheet>section,.sheet>.prose{margin-top:52px}
.sheet>section:first-child{margin-top:0}
.head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;background:var(--ink);color:var(--paper);border:2px solid var(--pencil);border-radius:4px;text-decoration:none;font-size:1.1rem;box-shadow:3px 3px 0 var(--pencil)}
.btn:hover{transform:translate(1px,1px);box-shadow:2px 2px 0 var(--pencil)}
.btn:active{transform:translate(3px,3px);box-shadow:none}
.btn.ghost{background:var(--paper);color:var(--pencil)}

/* today's puzzle */
.today{display:grid;grid-template-columns:auto 1fr;gap:clamp(18px,4vw,40px);align-items:center;background:var(--t);border:2px solid var(--pencil);padding:clamp(18px,3vw,30px);box-shadow:6px 6px 0 var(--pencil)}
.today-pic{background:var(--paper);border:2px solid var(--pencil);padding:8px;line-height:0}
.today h2{font-size:clamp(1.9rem,1.3rem + 2.4vw,2.8rem);margin-top:2px}
.today p{max-width:52ch;margin-top:8px}
.facts{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:center;font-weight:700;margin-bottom:16px}
@media (max-width:600px){.today{grid-template-columns:1fr}.today-pic{width:112px}.today-pic svg{width:92px;height:92px}}
.glyph{background:linear-gradient(var(--rule) 1px,transparent 1px) 0 0/20% 20%,linear-gradient(90deg,var(--rule) 1px,transparent 1px) 0 0/20% 20%,var(--paper);flex:none}
.pips{display:inline-flex;gap:4px;vertical-align:middle}
.pips i{width:11px;height:11px;border:2px solid var(--pencil);border-radius:50%}
.pips i.on{background:var(--pencil)}

/* contents list */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.fl{min-height:38px;padding:0 14px;border:2px solid var(--pencil);border-radius:999px;background:var(--t,var(--paper));font-weight:700;font-size:.95rem}
.fl.on{background:var(--pencil);color:var(--paper)}
.contents{border-top:2px solid var(--pencil);background:var(--paper)}
.row{border-bottom:1px solid var(--pencil)}
.row a{display:grid;grid-template-columns:44px 52px minmax(0,1fr) auto 40px;gap:16px;align-items:center;padding:12px 10px 12px 6px;text-decoration:none;border-left:8px solid var(--t)}
.row a:hover{background:var(--fill)}
.no{font-size:1.7rem;color:var(--soft);text-align:right;font-variant-numeric:tabular-nums;line-height:1}
.no.big{font-size:clamp(2.6rem,2rem + 3vw,4.2rem);color:var(--red);text-align:left}
.row .glyph{border:1px solid var(--pencil)}
.what b{display:block;font-size:1.2rem;font-stretch:80%;font-weight:800;line-height:1.2}
.what span{display:block;color:var(--soft);font-size:.95rem;line-height:1.4;margin-top:2px}
.meta{display:grid;grid-template-columns:118px 46px 54px;gap:12px;align-items:center;font-size:.9rem;font-weight:700;color:var(--soft)}
.tick{width:30px;height:30px;border:2px solid var(--pencil);display:grid;place-items:center;font-family:Caveat,cursive;font-size:2rem;line-height:1;color:var(--ok)}
.row.done .tick::after{content:"✓"}
.row.done .what b{text-decoration:line-through;text-decoration-color:var(--ok);text-decoration-thickness:2px}
@media (max-width:760px){
  .row a{grid-template-columns:52px minmax(0,1fr) 30px;gap:12px;padding:12px 8px}
  .row .no{display:none}
  .meta{grid-column:1/-1;grid-template-columns:auto auto auto;justify-content:start;gap:16px;padding-left:64px;margin-top:-4px}
  .tick{grid-column:3;grid-row:1}
}
.after{margin-top:24px}

/* puzzle page */
.crumbs{display:flex;gap:8px;font-weight:700;font-size:.92rem;color:var(--soft)}
.crumbs a{color:var(--ink)}
.ptitle{display:flex;gap:18px;align-items:flex-start;margin-top:10px;position:relative}
.ptitle .lede{margin-top:8px}
.stamp{font-family:Caveat,cursive;font-size:2.2rem;font-weight:700;color:var(--ok);border:3px solid var(--ok);border-radius:8px;padding:0 14px;transform:rotate(-7deg);margin-left:auto;align-self:center;white-space:nowrap}
.play{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;margin-top:24px;align-items:start}
.board{position:relative;border:2px solid var(--pencil);background:var(--paper);height:640px;box-shadow:6px 6px 0 var(--pencil)}
.board iframe{width:100%;height:100%;border:0;display:block}
.board .exit{display:none;position:absolute;right:8px;bottom:8px;border:2px solid var(--pencil);background:var(--paper);padding:8px 12px;font-weight:700}
.board.fill{position:fixed;inset:0;height:auto;z-index:50;box-shadow:none;border:0}
.board.fill .exit,.board:fullscreen .exit{display:block}
body.lock{overflow:hidden}
.rules{background:var(--t);border:2px solid var(--pencil);padding:20px}
.rules h2{font-size:1.5rem;margin-bottom:10px}
.rules ol{counter-reset:r;display:grid;gap:10px}
.rules li{counter-increment:r;display:grid;grid-template-columns:26px 1fr;gap:8px;line-height:1.45;font-size:.98rem}
.rules li::before{content:counter(r);font-family:Caveat,cursive;font-size:1.6rem;font-weight:700;line-height:1;color:var(--ink)}
.rules dl{margin:18px 0;border-top:2px solid var(--pencil)}
.rules dl div{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--pencil);font-size:.95rem}
.rules dt{font-weight:700}
.rules .btn{width:100%}
@media (max-width:860px){.play{grid-template-columns:1fr}.board{height:min(82svh,640px);min-height:470px;margin-inline:-6px}}
.turn{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.turn a{border:2px solid var(--pencil);background:var(--paper);padding:12px 16px;text-decoration:none}
.turn a:hover{background:var(--fill)}
.turn a:last-child{text-align:right}
.turn span{display:block;color:var(--soft);font-weight:700;font-size:.9rem}
.turn b{font-stretch:80%;font-size:1.15rem}

/* long text sits on a plain panel so the grid lines do not fight the words */
.prose{background:var(--paper);border:2px solid var(--pencil);padding:clamp(18px,3.5vw,36px);max-width:74ch;font-size:1.06rem;line-height:1.7}
.prose h1{margin-bottom:18px}
.prose h2{font-size:1.45rem;margin:30px 0 8px}
.prose h2:first-child,.prose h2.first{margin-top:0}
.prose p+p{margin-top:14px}
.prose a{color:var(--ink);font-weight:700;text-underline-offset:3px}

.ad{margin:36px 0 0;min-height:100px;text-align:center}
.ad::before{content:"Advertisement";display:block;font-size:.72rem;color:var(--soft)}

.foot{display:grid;grid-template-columns:1.3fr 1fr;gap:16px 40px;padding:28px 6px 0}
.foot b{font-stretch:70%;font-weight:800;font-size:1.3rem}
.foot p{color:var(--soft);max-width:44ch;margin-top:4px}
.foot nav{display:flex;flex-wrap:wrap;gap:6px 20px;align-content:start;font-weight:700}
.foot .legal{grid-column:1/-1;max-width:none;font-size:.9rem;border-top:2px solid var(--pencil);padding-top:14px}
@media (max-width:640px){.foot{grid-template-columns:1fr}}

.consent{position:fixed;left:12px;right:12px;bottom:12px;max-width:520px;margin:0 auto;z-index:40;background:var(--paper);border:2px solid var(--pencil);box-shadow:5px 5px 0 var(--pencil);padding:16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.consent p{flex:1 0 100%}
.consent button{min-height:40px;padding:0 14px;border:2px solid var(--pencil);background:var(--paper);font-weight:700}
.consent .go{background:var(--hi)}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}