/* Layer by Layer 2: design system. Shared by every page; page styles live in pages.css,
   build.css and read.css. Tokens first, then base elements, then shared components. */
@font-face{font-family:'Lilita One';src:url(../../fonts/lilita-one-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Nunito';src:url(../../fonts/nunito-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Nunito';src:url(../../fonts/nunito-latin-700-normal.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Nunito';src:url(../../fonts/nunito-latin-800-normal.woff2) format('woff2');font-weight:800;font-display:swap}
@font-face{font-family:'Nunito';src:url(../../fonts/nunito-latin-900-normal.woff2) format('woff2');font-weight:900;font-display:swap}

:root{
  --paper:#fbf7ee; --paper-2:#f3ecdc; --card:#ffffff; --ink:#1b2130; --ink-2:#38425a; --muted:#5f6a7d;
  --line:#e6dccb; --line-2:#d6cab3; --shadow:rgba(27,33,48,.14);
  --sky-1:#3f9cff; --sky-2:#8fd0ff; --sky-3:#e4f4ff;
  --grass:#3a9d4a; --grass-dk:#276b31; --gold:#f2c230; --gold-dk:#b88600; --blueprint:#4fb6ff;
  --c-builds:#2e7d3b; --c-minis:#0f7a73; --c-secrets:#b45309; --c-redstone:#c0392b; --c-showcase:#2a2f6b;
  --c-top10:#c2378f; --c-log:#7b4fc9; --c-front:#3a4a5c;
  --c:var(--c-builds);            /* the current section's colour; pages set it */
  --display:'Lilita One',Impact,'Arial Black',sans-serif;
  --body:'Nunito',ui-rounded,system-ui,-apple-system,'Segoe UI',sans-serif;
  --fs:17px; --lh:1.55; --track:0; --word:0;
  --r:16px; --r-sm:10px;
  --wrap:1120px; --gutter:16px;
  --top:60px; --tabbar:0px;
  --ease-out:cubic-bezier(.2,.8,.2,1); --ease-spring:cubic-bezier(.34,1.56,.64,1);
  color-scheme:light;
}
html[data-text="2"]{--fs:19px}
html[data-text="3"]{--fs:21.5px}
html[data-spacey]{--track:.12em; --word:.16em; --lh:1.75}

*{box-sizing:border-box}
#main:focus,#main h1[tabindex="-1"]:focus{outline:none}
html{background:var(--paper);-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--top) + 12px)}
body{margin:0;font-family:var(--body);font-size:var(--fs);line-height:var(--lh);color:var(--ink);background:var(--paper);
  letter-spacing:var(--track);word-spacing:var(--word);min-height:100dvh;padding-bottom:var(--tabbar);
  -webkit-tap-highlight-color:transparent;text-rendering:optimizeLegibility}
img,svg,canvas{display:block;max-width:100%}
.ico{flex:none}
[hidden]{display:none!important}
button,input,select{font:inherit;color:inherit;letter-spacing:inherit}
a{color:inherit}
p{margin:0 0 .8em}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.05;margin:0 0 .35em;letter-spacing:.005em;text-wrap:balance}
h1{font-size:clamp(34px,6vw,60px)}
h2{font-size:clamp(24px,3.4vw,34px)}
h3{font-size:clamp(19px,2.3vw,23px)}
p,li{text-wrap:pretty}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gutter)}
.tiny{font-size:.78em;color:var(--muted)}
.muted{color:var(--muted)}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:8px;top:-60px;z-index:100;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;font-weight:900}
.skip:focus{top:8px}
:focus-visible{outline:3px solid var(--blueprint);outline-offset:2px;border-radius:6px}
::selection{background:#ffe38a}

/* ---------------------------------------------------------------- top bar */
.topbar{position:sticky;top:0;z-index:40;background:var(--ink);color:#fff;padding-top:env(safe-area-inset-top);
  box-shadow:0 2px 0 rgba(0,0,0,.18)}
.topbar-in{max-width:1320px;margin:0 auto;padding:0 12px;min-height:var(--top);display:flex;align-items:center;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;white-space:nowrap;flex:none}
.brand-name{font-family:var(--display);font-size:21px;letter-spacing:.01em}
.brand-name b{display:inline-block;font-weight:400;background:var(--gold);color:#3a2a00;border-radius:6px;padding:0 7px;margin-left:2px;transform:rotate(-4deg)}
.brand-mark{position:relative;width:26px;height:26px;flex:none}
.brand-mark i{position:absolute;left:3px;width:20px;height:7px;border-radius:2px;box-shadow:inset -3px -2px 0 rgba(0,0,0,.25)}
.brand-mark i:nth-child(1){top:1px;background:var(--blueprint);left:6px;width:15px}
.brand-mark i:nth-child(2){top:9px;background:#e6a23c}
.brand-mark i:nth-child(3){top:17px;background:var(--grass)}
.nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none;padding-block:8px}
.nav::-webkit-scrollbar{display:none}
.nav a{display:flex;align-items:center;gap:6px;text-decoration:none;font-weight:900;font-size:14px;padding:7px 11px;min-height:44px;border-radius:9px;white-space:nowrap;
  color:#dfe5f0;border-bottom:3px solid transparent;transition:background .15s}
.nav a svg{width:18px;height:18px}
.nav a:hover{background:rgba(255,255,255,.08)}
.nav a[aria-current="page"]{background:var(--nc);color:#fff;border-bottom-color:rgba(0,0,0,.25)}
.top-tools{display:flex;align-items:center;gap:6px;flex:none}
.icon-btn{width:44px;height:44px;border-radius:10px;border:0;background:rgba(255,255,255,.09);color:#fff;display:grid;place-items:center;cursor:pointer}
.icon-btn svg{width:22px;height:22px}
.icon-btn:hover{background:rgba(255,255,255,.16)}
.icon-btn[aria-pressed="true"]{background:var(--gold);color:#3a2a00}
.back-arcade{color:#9fb0c8;font-weight:800;font-size:13px;text-decoration:none;white-space:nowrap;padding:6px 4px}
.back-arcade:hover{color:#fff}

@media (max-width:1240px){
  .nav a{padding:7px 9px;font-size:13.5px}
  .nav a svg{display:none}
  .back-arcade{display:none}
}
/* bottom tab bar on phones and narrow iPad split view */
.tabbar{display:none}
@media (max-width:820px){
  :root{--tabbar:calc(64px + env(safe-area-inset-bottom))}
  .nav,.back-arcade{display:none}
  .topbar-in{justify-content:space-between}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:45;background:var(--ink);padding:6px 6px calc(6px + env(safe-area-inset-bottom));
    justify-content:space-around;box-shadow:0 -2px 0 rgba(0,0,0,.2)}
  .tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;color:#c9d2e3;text-decoration:none;font-size:12.5px;font-weight:900;padding:5px 2px;border-radius:10px;min-width:0}
  .tabbar a svg{width:24px;height:24px}
  .tabbar a[aria-current="page"]{color:#fff;background:var(--nc)}
  .tabbar button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;color:#c9d2e3;font-size:12.5px;font-weight:900;padding:5px 2px;border-radius:10px;border:0;background:none;min-width:0}
  .tabbar button svg{width:24px;height:24px}
  .tabbar button[aria-current="page"]{color:#fff;background:var(--nc)}
}
.more-sheet{border:0;padding:10px;border-radius:18px;background:var(--card);box-shadow:0 20px 60px rgba(0,0,0,.35),0 0 0 3px var(--line);
  position:fixed;inset:auto 8px calc(var(--tabbar) + 8px) auto;margin:0;width:min(300px,calc(100vw - 16px))}
.more-sheet::backdrop{background:rgba(15,20,35,.25)}
.more-sheet a{display:flex;align-items:center;gap:12px;padding:12px;border-radius:12px;text-decoration:none;font-weight:900;min-height:52px}
.more-sheet a svg{width:26px;height:26px;color:var(--nc)}
.more-sheet a:hover,.more-sheet a[aria-current="page"]{background:var(--paper-2)}

/* ---------------------------------------------------------------- settings sheet (popover) */
.sheet{border:0;padding:18px;border-radius:18px;background:var(--card);color:var(--ink);width:min(420px,calc(100vw - 24px));
  box-shadow:0 20px 60px rgba(0,0,0,.3),0 0 0 3px var(--line);margin:calc(var(--top) + 10px) 12px auto auto;inset:0 0 auto auto;position:fixed}
.sheet::backdrop{background:rgba(15,20,35,.25)}
.sheet h2{font-size:26px}
.set-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:2px dashed var(--line);font-weight:800}
.set-row small{display:block;font-weight:700;color:var(--muted);font-size:.8em}
.set-row input[type=checkbox]{width:28px;height:28px;accent-color:var(--grass);flex:none}
.set-foot{padding:12px 0}
.seg{display:inline-flex;background:var(--paper-2);border-radius:10px;padding:3px;gap:3px;flex:none}
.seg button{border:0;background:transparent;border-radius:8px;padding:7px 11px;font-weight:900;cursor:pointer;min-width:44px;min-height:44px}
.seg button[aria-pressed="true"]{background:var(--ink);color:#fff}
@supports selector(:popover-open){
  .sheet:popover-open{animation:sheet-in .22s var(--ease-out)}
}
@keyframes sheet-in{from{opacity:0;transform:translateY(-8px) scale(.98)}}

/* ---------------------------------------------------------------- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:10px 18px;border-radius:12px;border:0;
  background:var(--c);color:#fff;font-weight:900;font-size:1em;text-decoration:none;cursor:pointer;line-height:1.1;
  box-shadow:inset -3px -4px 0 rgba(0,0,0,.2),0 3px 0 rgba(0,0,0,.08);transition:transform .12s var(--ease-out),filter .12s}
.btn:hover{filter:brightness(1.06)}
.btn:active{transform:translateY(2px)}
.btn svg{width:22px;height:22px;flex:none}
.btn.big{min-height:60px;padding:14px 24px;font-size:1.12em;border-radius:14px}
.btn.small{min-height:44px;padding:8px 14px;font-size:.92em}
.btn.ghost{background:var(--card);color:var(--ink);box-shadow:0 0 0 3px var(--line) inset,3px 3px 0 var(--line)}
.btn.gold{background:var(--gold);color:#3a2a00}
.btn.dark{background:var(--ink)}
.btn[disabled]{opacity:.45;pointer-events:none}
.chip{display:inline-flex;align-items:center;gap:6px;font-weight:900;font-size:.8em;padding:3px 10px;border-radius:999px;background:var(--paper-2);color:var(--ink-2);white-space:nowrap}
.chip.new{background:#fff1b8;color:#6a4b00}
.chip.c{background:var(--c);color:#fff}

/* ---------------------------------------------------------------- cards and grids */
.card{background:var(--card);border-radius:var(--r);box-shadow:0 0 0 3px var(--line),4px 5px 0 var(--line);padding:16px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(var(--min,240px),1fr))}
.section{padding-block:28px}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.section-head h2{margin:0}
.kicker{font-weight:900;letter-spacing:.14em;text-transform:uppercase;font-size:13px;color:var(--c)}

/* a section banner with the stepped block edge from Volume 1 */
.band{background:var(--c);color:#fff;position:relative;padding:26px 0 30px}
.band::after{content:'';position:absolute;left:0;right:0;bottom:-12px;height:12px;
  background:linear-gradient(90deg,var(--c) 0 25%,transparent 25% 50%,var(--c) 50% 75%,transparent 75%) 0 0/48px 12px}
.band h1{text-shadow:0 3px 0 rgba(0,0,0,.18);margin:0}
.band .kicker{color:#fff}
.band p{font-weight:800;font-size:1.05em;max-width:56ch;margin:.4em 0 0;opacity:.95}

/* tips: only four labels, ever */
.tip{border-radius:14px;padding:12px 14px 10px;margin:12px 0;background:#fff;box-shadow:0 0 0 3px var(--tc) inset;font-size:.96em}
.tip .t{display:inline-block;font-family:var(--display);font-size:15px;letter-spacing:.04em;color:#fff;background:var(--tcd);padding:2px 9px;border-radius:6px;margin-right:6px}
.tip b{font-weight:900}
.tip.pro{--tc:#f3d27a;--tcd:#8a6200;background:#fffaf0}
.tip.warn{--tc:#f1a3a3;--tcd:#c03b3b;background:#fff5f5}
.tip.know{--tc:#a9cdf5;--tcd:#2f6fd0;background:#f4f9ff}
.tip.start{--tc:#9bd3a6;--tcd:#2d7a3a;background:#f2fbf3}

/* numbered steps */
ol.steps{list-style:none;padding:0;margin:0;counter-reset:s}
ol.steps>li{counter-increment:s;position:relative;padding-left:46px;margin-bottom:12px;min-height:32px}
ol.steps>li::before{content:counter(s);position:absolute;left:0;top:-2px;width:32px;height:32px;background:var(--c);color:#fff;font-family:var(--display);
  font-size:18px;display:grid;place-items:center;border-radius:7px;box-shadow:inset -3px -3px 0 rgba(0,0,0,.2)}

/* difficulty pips */
.pips{display:inline-flex;gap:3px;vertical-align:middle}
.pips i{width:11px;height:11px;background:var(--c);box-shadow:inset -2px -2px 0 rgba(0,0,0,.25)}
.pips i.off{background:#d9d1c0;box-shadow:none}

/* "ask a grown-up" gate before outside links */
.gate{border:0;border-radius:20px;padding:22px;max-width:420px;width:calc(100vw - 32px);text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.35)}
.gate::backdrop{background:rgba(15,20,35,.55)}
.gate h2{font-size:28px}
.gate .actions{display:flex;flex-direction:column;gap:10px;margin-top:14px}
/* the grown-up button fills with gold while it is held down */
.gate .gate-go{position:relative;overflow:hidden;isolation:isolate;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;touch-action:manipulation}
.gate .gate-go::before{content:'';position:absolute;inset:0;z-index:-1;background:var(--gold);transform:scaleX(0);transform-origin:left center}
.gate .gate-go.holding::before{transform:scaleX(1);transition:transform var(--hold,900ms) linear}
.gate .gate-go.ready{color:#3a2a00}

/* toast */
.toast{position:fixed;left:50%;bottom:calc(var(--tabbar) + 18px);transform:translateX(-50%);z-index:60;background:var(--ink);color:#fff;font-weight:900;
  padding:12px 18px;border-radius:14px;box-shadow:0 10px 30px rgba(0,0,0,.3);max-width:calc(100vw - 32px)}

/* boot */
.boot{min-height:60vh;display:grid;place-items:center;align-content:center;gap:12px;color:var(--muted);font-weight:900}
.boot-blocks{display:flex;gap:6px}
.boot-blocks i{width:18px;height:18px;background:var(--grass);box-shadow:inset -4px -4px 0 rgba(0,0,0,.2);animation:hop .9s var(--ease-spring) infinite}
.boot-blocks i:nth-child(2){animation-delay:.12s;background:#e6a23c}
.boot-blocks i:nth-child(3){animation-delay:.24s;background:var(--blueprint)}
@keyframes hop{0%,100%{transform:translateY(0)}40%{transform:translateY(-12px)}}

/* footer */
.foot{font-size:15px;color:var(--muted);text-align:center;padding:30px 16px 40px;max-width:82ch;margin:0 auto}
.foot a{color:var(--muted)}

/* page enter (only when not calm) */
html:not([data-calm]) .enter{animation:enter .45s var(--ease-out) both}
@keyframes enter{from{opacity:0;transform:translateY(10px)}}

/* view transitions between pages */
::view-transition-old(root),::view-transition-new(root){animation-duration:.28s}
html[data-calm] ::view-transition-group(*),html[data-calm] ::view-transition-old(*),html[data-calm] ::view-transition-new(*){animation:none!important}

/* calm mode and reduced motion */
html[data-calm] *,html[data-calm] *::before,html[data-calm] *::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important;scroll-behavior:auto!important}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important}
}
@media screen{#print-pack{display:none}}