/* Pencilhop · Notebook Desk design system.
   Two looks, one layout: the playful look by default, the calm look via <html class="calm">.
   Every colour is a token so a dark theme stays cheap later. Light theme only for v1. */

@font-face { font-family: "Lexend"; font-style: normal; font-weight: 100 900; font-display: swap; src: url("/assets/fonts/lexend-latin-wght-normal.woff2") format("woff2"); }
@font-face { font-family: "Grandstander"; font-style: normal; font-weight: 700; font-display: swap; src: url("/assets/fonts/grandstander-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "Grandstander"; font-style: normal; font-weight: 800; font-display: swap; src: url("/assets/fonts/grandstander-latin-800-normal.woff2") format("woff2"); }
@font-face { font-family: "Gaegu"; font-style: normal; font-weight: 700; font-display: swap; src: url("/assets/fonts/gaegu-latin-700-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 600; font-display: swap; src: url("/assets/fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2"); }

:root {
  --paper: #FFFFFF;
  --grid: #E3ECF7;
  --ink: #263049;
  --ink2: #5A6380;
  --tom: #E8573C;      /* red pen: ○ marks, corrections, main button. Never a child's name */
  --mint: #2FA987;
  --sun: #FFC83A;
  --sky: #4F9BE6;
  --pink: #F29AB0;
  --margin: #F2A3A3;
  --edge: #263049;
  --chip: #F1F4FA;
  --wash: rgba(255, 255, 255, .88);
  --btn: var(--tom);
  --btn-ink: #FFFFFF;
  --shadow: .25rem .25rem 0 var(--sky);
  --radius: 1rem;
  --tilt: 1;            /* multiplier for sticker rotation; 0 in the calm look */

  --cjk-ja: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  --cjk-ko: "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
  --cjk-tw: "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", sans-serif;
  --cjk: var(--cjk-ja);
  --f-d: "Grandstander", "Lexend", system-ui, sans-serif;
  --f-b: "Lexend", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-h: "Gaegu", "Comic Sans MS", cursive;
  --f-m: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
  color-scheme: light;
}
:root:lang(ko) { --cjk: var(--cjk-ko); }
:root:lang(zh-Hant-TW) { --cjk: var(--cjk-tw); }

html.calm {
  --grid: #F0F3F8;
  --edge: #CDD4E1;
  --sun: #F6DC8E;
  --btn: var(--ink);
  --shadow: 0 .75rem 1.625rem -1.25rem rgba(38, 48, 73, .55);
  --f-d: "Lexend", system-ui, sans-serif;
  --tilt: 0;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
/* Korean wraps between words, not inside them. */
html:lang(ko) body { word-break: keep-all; overflow-wrap: break-word; }
/* Desktop windows: grow the whole page like a 110–125% browser zoom (the owner's pick). Sizes are rem,
   so tools grow too; touch screens keep 100%. Not CSS zoom: the drawing tools read pointer positions. */
@media screen and (hover: hover) and (pointer: fine) and (min-width: 1100px) { html { font-size: 110%; } }
@media screen and (hover: hover) and (pointer: fine) and (min-width: 1300px) { html { font-size: 115%; } }
@media screen and (hover: hover) and (pointer: fine) and (min-width: 1440px) { html { font-size: 120%; } }
@media screen and (hover: hover) and (pointer: fine) and (min-width: 1680px) { html { font-size: 125%; } }
body {
  margin: 0;
  background-color: var(--paper);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 1.5rem 1.5rem;
  color: var(--ink);
  font: 400 1rem/1.6 var(--f-b), var(--cjk);
  min-height: 100vh;
}
:lang(ja) body, :lang(ko) body, :lang(zh-Hant-TW) body { line-height: 1.75; }
img, svg { max-width: 100%; }
a { color: var(--ink); text-decoration-color: var(--sky); text-underline-offset: .1875rem; }
a:hover { text-decoration-thickness: 2px; }
button { font: inherit; color: inherit; }
:focus-visible { outline: .1875rem solid var(--sky); outline-offset: 2px; }
.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: .5rem; top: -3.75rem; background: var(--ink); color: #fff; padding: .5rem .75rem; border-radius: .5rem; z-index: 50; }
.skip:focus { top: .5rem; }
.wrap { max-width: 70rem; margin: 0 auto; padding-left: max(1rem, env(safe-area-inset-left)); padding-right: max(1rem, env(safe-area-inset-right)); }
.wash { background: var(--wash); }

/* ---------- header ---------- */
.top { display: flex; align-items: center; gap: .625rem 1.125rem; flex-wrap: wrap; padding-block: .875rem; }
.logo { font: 800 1.3125rem/1 var(--f-d); padding: .4375rem .875rem; background: var(--sun); border-radius: .25rem; color: var(--ink); text-decoration: none; transform: rotate(calc(-2deg * var(--tilt))); box-shadow: 0 2px 0 rgba(0,0,0,.08); }
.top nav { display: flex; gap: .25rem 1rem; flex-wrap: wrap; font-size: .9375rem; margin-right: auto; }
.top nav a { text-decoration: none; color: var(--ink2); padding: .375rem 2px; }
.top nav a:hover, .top nav a[aria-current] { color: var(--ink); text-decoration: underline; text-decoration-color: var(--sun); text-decoration-thickness: .1875rem; }
.langs { display: flex; background: #fff; border: 1.5px solid var(--edge); border-radius: 62.4375rem; padding: 2px; }
.langs a { text-decoration: none; font-size: .8125rem; padding: .3125rem .625rem; border-radius: 62.4375rem; color: var(--ink); white-space: nowrap; }
.langs a[aria-current] { background: var(--ink); color: #fff; }
.langbar { margin: 0; padding: .5rem .75rem; border: 1.5px dashed var(--ink2); border-radius: .75rem; background: #fff; display: flex; gap: .5rem .875rem; align-items: center; flex-wrap: wrap; font-size: .875rem; }
.langbar button { border: 0; background: none; color: var(--ink2); cursor: pointer; padding: .25rem; }

/* ---------- buttons, chips ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 3.5rem; padding: .75rem 1.125rem; border-radius: .875rem; font: 700 1rem/1.1 var(--f-d), var(--cjk); border: 2px solid var(--ink); background: #fff; color: var(--ink); text-decoration: none; cursor: pointer; }
.btn.go { background: var(--btn); color: var(--btn-ink); box-shadow: .1875rem .1875rem 0 var(--ink); }
html.calm .btn { border-radius: .625rem; font: 600 .9375rem/1.1 var(--f-b), var(--cjk); }
html.calm .btn.go { box-shadow: none; border-color: var(--ink); }
.btn:active { transform: translate(1px, 1px); }
.btn[disabled] { opacity: .5; cursor: default; }
.btn.small { min-height: 2.75rem; padding: .5rem .75rem; font-size: .875rem; }
.btn.quiet { border-color: var(--edge); }
.row { display: flex; gap: .625rem; flex-wrap: wrap; align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: .375rem; }
.chip { border: 1.5px solid var(--edge); background: #fff; border-radius: 62.4375rem; padding: .375rem .875rem; font-size: .9375rem; min-height: 3.5rem; cursor: pointer; display: inline-flex; align-items: center; gap: .375rem; }
.chip[aria-pressed="true"], .chip.on { background: var(--sun); border-color: var(--ink); }
html.calm .chip[aria-pressed="true"], html.calm .chip.on { background: var(--ink); color: #fff; }
.note { font: 700 1.25rem/1.1 var(--f-h); color: var(--tom); display: inline-block; margin: 0 0 .375rem; transform: rotate(calc(-1.5deg * var(--tilt))); }
:lang(ja) .note, :lang(ko) .note, :lang(zh-Hant-TW) .note { font: 700 .9375rem/1.3 var(--f-b), var(--cjk); }
html.calm .note { font: 600 .75rem/1.2 var(--f-b), var(--cjk); letter-spacing: .06em; text-transform: uppercase; color: var(--ink2); }
.mk { background: linear-gradient(transparent 62%, var(--sun) 62%); }
:lang(ja) .mk, :lang(zh-Hant-TW) .mk { display: inline-block; }
:lang(ja) h1, :lang(ja) h2, :lang(ja) .lede { word-break: auto-phrase; }

/* ---------- hero (home) ---------- */
h1 { font: 800 clamp(1.875rem, 6vw, 3.125rem)/1.08 var(--f-d), var(--cjk); margin: 0 0 .875rem; letter-spacing: -.01em; text-wrap: balance; }
:lang(ja) h1, :lang(ko) h1, :lang(zh-Hant-TW) h1 { font-weight: 800; letter-spacing: 0; line-height: 1.25; }
html.calm h1 { font-weight: 600; letter-spacing: -.02em; }
h2 { font: 700 clamp(1.25rem, 3.4vw, 1.625rem)/1.25 var(--f-d), var(--cjk); margin: 0 0 .625rem; }
h3 { font: 700 1.0625rem/1.3 var(--f-d), var(--cjk); margin: 0 0 .375rem; }
.hero { display: grid; grid-template-columns: minmax(0, 11fr) minmax(0, 10fr); gap: clamp(1.125rem, 4vw, 2.5rem); padding-block: .875rem 1.375rem; align-items: start; }
.lede { margin: 0 0 1.125rem; color: var(--ink2); max-width: 52ch; background: var(--wash); font-size: 1.0625rem; }
.card { background: #fff; border: 2px solid var(--edge); border-radius: 1.125rem; padding: .875rem; box-shadow: var(--shadow); }
.yg { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .5rem; margin-top: .625rem; }
.yg button { border: 2px solid var(--edge); background: #fff; color: var(--ink); border-radius: .875rem; display: grid; gap: .1875rem; padding: .625rem .25rem; min-height: 3.5rem; font: 700 .9375rem/1.1 var(--f-d), var(--cjk); text-align: center; cursor: pointer; min-width: 0; transition: transform .15s; }
.yg button small { font: 500 .6563rem/1.25 var(--f-b), var(--cjk); color: var(--ink2); }
.yg button:nth-child(odd) { transform: rotate(calc(-1.5deg * var(--tilt))); }
.yg button:nth-child(even) { transform: rotate(calc(1.2deg * var(--tilt))); }
.yg button[aria-pressed="true"] { background: var(--sun); border-color: var(--ink); }
html.calm .yg button[aria-pressed="true"] { background: var(--ink); color: #fff; }
html.calm .yg button[aria-pressed="true"] small { color: #D5DBE8; }
.hint { margin: .625rem 0 0; font-size: .8125rem; color: var(--ink2); }

/* ---------- notebook page (today's set, results, watch view) ---------- */
.today { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1.125rem; align-items: center; padding-block: 0 1.625rem; }
.page { border: 2px solid var(--edge); border-radius: .875rem; padding: .625rem 1rem .75rem 2.5rem; position: relative; background: repeating-linear-gradient(#fff 0 1.9375rem, var(--grid) 1.9375rem 2rem); min-width: 0; }
.page::before { content: ""; position: absolute; left: 1.5rem; top: 0; bottom: 0; width: 1.5px; background: var(--margin); }
.page h2 { font-size: 1.0625rem; line-height: 2rem; margin: 0; display: flex; gap: .25rem .625rem; flex-wrap: wrap; align-items: baseline; }
.page h2 span { font: 400 .8125rem/1.3 var(--f-b), var(--cjk); color: var(--ink2); }
.page .then { margin: 0; font-size: .8438rem; line-height: 2rem; color: var(--ink2); }
.probs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1.75rem; font: 600 1.125rem/2rem var(--f-m); margin: 0; padding: 0; list-style: none; }
.probs li { display: flex; align-items: center; gap: .5rem; min-height: 2.5rem; }
.probs .slot { min-width: 3.5rem; height: 3.5rem; border: 0; border-bottom: 2px dashed var(--ink2); background: transparent; font: inherit; text-align: center; padding: 0 .25rem; cursor: pointer; border-radius: .25rem .25rem 0 0; }
.probs .slot.on { background: #FFF6D8; border-bottom-style: solid; border-bottom-color: var(--ink); }
.probs .slot.ok { cursor: default; border-bottom-color: transparent; }
.probs .fix { color: var(--tom); font: 700 1.125rem/1 var(--f-h); }
.today-pad { display: none; }
.today-pad.show { display: block; margin-top: .625rem; }
.stamp { display: grid; justify-items: center; gap: 2px; min-width: 8.75rem; text-align: center; }
.stamp svg { width: 7rem; height: 7rem; transform: rotate(calc(-8deg * var(--tilt))); }
.stamp g { stroke: var(--tom); fill: none; stroke-width: 4; stroke-linecap: round; }
html.calm .stamp .petals { display: none; }
.stamp b { font: 800 1.375rem/1 var(--f-d), var(--cjk); color: var(--tom); }
.stamp span { font: 700 1.125rem/1.1 var(--f-h), var(--cjk); color: var(--ink2); max-width: 16ch; }
:lang(ja) .stamp span, :lang(ko) .stamp span, :lang(zh-Hant-TW) .stamp span { font: 500 .8125rem/1.4 var(--f-b), var(--cjk); }
.stamp.pop { animation: pop .5s cubic-bezier(.3, .7, .3, 1.4) both; }
@keyframes pop { from { transform: scale(.4) rotate(-20deg); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- shelf ---------- */
.shelfhead { display: flex; gap: .625rem 1rem; align-items: center; flex-wrap: wrap; margin-bottom: .875rem; }
.shelfhead h2 { margin: 0; }
.search { flex: 1 1 16.25rem; min-width: 0; display: flex; align-items: center; gap: .5rem; background: #fff; border: 2px solid var(--edge); border-radius: .75rem; padding: 0 .75rem; }
.search:focus-within { outline: .1875rem solid var(--sky); outline-offset: 2px; }
.search svg { width: 1.125rem; height: 1.125rem; flex: none; }
.search input { border: 0; outline: 0; flex: 1; min-width: 0; font: 400 1rem/3.5 var(--f-b), var(--cjk); background: transparent; color: var(--ink); }
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .875rem; padding: 0 0 1.5rem; margin: 0; list-style: none; }
.tile { background: #fff; border: 2px solid var(--edge); border-radius: 1rem; padding: .75rem; display: grid; gap: .25rem; align-content: start; text-decoration: none; color: var(--ink); height: 100%; transition: transform .15s; }
.tiles li:nth-child(4n+1) .tile { transform: rotate(calc(-1.2deg * var(--tilt))); }
.tiles li:nth-child(4n+2) .tile { transform: rotate(calc(.9deg * var(--tilt))); }
.tiles li:nth-child(4n+3) .tile { transform: rotate(calc(-.6deg * var(--tilt))); }
.tiles li:nth-child(4n) .tile { transform: rotate(calc(1.3deg * var(--tilt))); }
.tile:hover { transform: translateY(-.1875rem) !important; }
.dot { width: 2.5rem; height: 2.5rem; border-radius: 50%; display: grid; place-items: center; font: 800 .875rem/1 var(--f-d), var(--cjk); color: #fff; margin-bottom: 2px; }
.tile b { font: 700 .9688rem/1.25 var(--f-d), var(--cjk); }
.tile .loc { font-size: .7813rem; color: var(--ink2); line-height: 1.35; }
.tags { display: flex; gap: .25rem; flex-wrap: wrap; margin-top: .25rem; }
.tags span { font-size: .6875rem; font-weight: 600; border-radius: .3125rem; padding: 2px .375rem; background: var(--chip); color: var(--ink2); }
.empty { color: var(--ink2); font-size: .875rem; }

/* ---------- sections ---------- */
.duo { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .875rem; padding-block: 0 1.625rem; }
.dash { background: #fff; border: 2px dashed var(--ink2); border-radius: 1rem; padding: .875rem 1rem; display: grid; gap: .5rem; align-content: start; min-width: 0; }
.dash p { margin: 0; font-size: .9063rem; color: var(--ink2); }
.bub { background: #8CABD8; border-radius: .75rem; padding: .625rem; display: grid; gap: .375rem; }
.bub div { background: #fff; border-radius: .25rem .75rem .75rem .75rem; padding: .4375rem .625rem; font-size: .8125rem; line-height: 1.45; max-width: 92%; }
.bub b { display: block; }
.prose { background: var(--wash); max-width: 72ch; padding-block: .5rem 1.625rem; }
.prose h2 { margin-top: 1.125rem; }
.prose p, .prose li { color: var(--ink); }
.prose ol, .prose ul { padding-left: 1.3em; }
.faq details { border: 2px solid var(--edge); border-radius: .75rem; background: #fff; padding: .625rem .875rem; margin-bottom: .5rem; }
.faq summary { font-weight: 600; cursor: pointer; min-height: 2rem; }
.faq details p { margin: .5rem 0 2px; color: var(--ink2); }

/* ---------- home: stats strip, exam calendar, steps, FAQ grid ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .875rem; margin: 0 0 1.875rem; padding: 0; list-style: none; }
.stats li { background: #fff; border: 2px solid var(--edge); border-radius: .875rem; padding: .75rem 1rem .875rem; display: grid; gap: .125rem; align-content: start; min-width: 0; }
.stats b { font: 800 clamp(1.5rem, 3vw, 2.125rem)/1.1 var(--f-d), var(--cjk); color: var(--tom); }
.stats li:nth-child(2) b { color: var(--sky); }
.stats li:nth-child(3) b { color: var(--mint); }
.stats li:nth-child(4) b { color: var(--ink); }
.stats span { font-size: .875rem; line-height: 1.4; color: var(--ink2); }
.stats li:nth-child(3) span { word-break: keep-all; overflow-wrap: anywhere; }
.band { padding-block: 1.25rem 1.875rem; }
.sechead { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .25rem 1.5rem; align-items: end; margin-bottom: 1rem; }
.sechead h2 { margin: 0; }
.sechead p { grid-column: 1; margin: 0; max-width: 62ch; color: var(--ink2); background: var(--wash); }
.sechead .more { grid-column: 2; grid-row: 1 / span 2; font-weight: 600; white-space: nowrap; padding-block: .375rem; }
.exs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .875rem; margin: 0; padding: 0; list-style: none; }
.ex { position: relative; overflow: hidden; background: #fff; border: 2px solid var(--edge); border-radius: 1rem; padding: 1.125rem 1rem 1rem; display: grid; grid-template-rows: auto auto 1fr auto auto; gap: .5rem; min-width: 0; }
.ex::before { content: ""; position: absolute; inset: 0 0 auto; height: .375rem; background: var(--c, var(--sky)); }
.exs li:nth-child(odd) { transform: rotate(calc(-.5deg * var(--tilt))); }
.exs li:nth-child(even) { transform: rotate(calc(.5deg * var(--tilt))); }
.ex-who { margin: 0; font: 600 .75rem/1.35 var(--f-b), var(--cjk); letter-spacing: .06em; text-transform: uppercase; color: var(--ink2); }
.ex h3 { margin: 0; font-size: 1.1875rem; }
.ex h3 a { text-decoration: none; }
.ex h3 a:hover { text-decoration: underline; text-decoration-color: var(--c, var(--sky)); text-decoration-thickness: .1875rem; }
.ex-text { margin: 0; font-size: .9063rem; color: var(--ink2); }
.ex-next { margin: 0; display: grid; border-top: 1.5px dashed var(--edge); padding-top: .5rem; }
.ex-next span { font-size: .75rem; color: var(--ink2); }
.ex-next b { font: 700 1.0625rem/1.35 var(--f-d), var(--cjk); }
.ex-tools { margin: 0; display: flex; flex-wrap: wrap; gap: .375rem; align-items: center; }
.ex-tools span { flex-basis: 100%; font-size: .75rem; color: var(--ink2); }
.ex-tools a { display: inline-flex; align-items: center; min-height: 2rem; padding: .125rem .625rem; border-radius: 62.4375rem; background: var(--chip); font-size: .8125rem; font-weight: 600; text-decoration: none; }
.ex-tools a:hover { background: var(--sun); }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: .875rem; margin: 0; padding: 0; list-style: none; }
.steps li { background: #fff; border: 2px dashed var(--ink2); border-radius: 1rem; padding: .875rem 1rem 1rem; display: grid; gap: .375rem; align-content: start; min-width: 0; }
.steps .n { width: 2.5rem; height: 2.5rem; border: .1875rem solid var(--tom); border-radius: 50%; display: grid; place-items: center; font: 700 1.375rem/1 var(--f-h); color: var(--tom); transform: rotate(calc(-8deg * var(--tilt))); }
.steps h3 { margin: 0; }
.steps p { margin: 0; font-size: .9063rem; color: var(--ink2); }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .625rem .875rem; align-items: start; }
.faq-grid details { margin: 0; }

/* ---------- Plus: pre-registration ---------- */
.plus-hero { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(1.25rem, 4vw, 3rem); align-items: center; padding-block: .875rem 1.875rem; }
.plus-hero .lede { font-size: 1.125rem; max-width: 50ch; }
.card.join { padding: 1.375rem 1.375rem 1.25rem; border-color: var(--ink); border-top: .5rem solid var(--sun); }
.join h2 { margin: 0 0 .25rem; }
.join-lede { margin: 0 0 .875rem; color: var(--ink2); }
.join .panel { margin: 0; gap: .75rem; }
.field { display: grid; gap: .375rem; font-weight: 600; font-size: .9375rem; }
.panel .field input { width: 100%; }
.btn.wide { width: 100%; }
#waitlist-msg:empty { display: none; }
#waitlist-msg { margin-top: .625rem; color: var(--ink); font-weight: 600; }
.pfeats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .875rem; margin: 0; padding: 0; list-style: none; }
.pfeats li { background: #fff; border: 2px solid var(--edge); border-radius: 1rem; padding: 1rem 1.125rem 1.125rem; display: grid; gap: .375rem; align-content: start; min-width: 0; }
.pfeats .dot { font-size: 1.125rem; }
.pfeats h3 { margin: 0; }
.pfeats p { margin: 0; font-size: .9375rem; color: var(--ink2); }
.pfree { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem 2.5rem; }
.pfree > div { border-left: .25rem solid var(--mint); padding-left: 1rem; min-width: 0; }
.pfree > div + div { border-left-color: var(--sky); }
.pfree p { margin: 0; max-width: 62ch; color: var(--ink2); }
.pcta { display: grid; justify-items: center; gap: .375rem; text-align: center; background: #fff; border: 2px solid var(--edge); border-radius: 1.25rem; padding: 1.875rem 1.25rem; margin-block: .625rem 1rem; }
.pcta h2 { margin: 0; }
.pcta p { margin: 0 0 .625rem; max-width: 52ch; color: var(--ink2); }

/* ---------- tool page ---------- */
.toolhead { padding-block: .625rem .375rem; }
.toolhead .lede { max-width: 64ch; }
.crumbs { font-size: .8125rem; color: var(--ink2); margin: 0 0 .25rem; }
.crumbs a { color: var(--ink2); }
.panel { display: grid; grid-template-columns: minmax(0, 1fr); gap: .875rem; margin-bottom: 1.625rem; }
.panel fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.panel legend { font: 700 .9375rem/1.3 var(--f-d), var(--cjk); padding: 0; margin-bottom: .375rem; }
.panel .grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .875rem 1.375rem; }
.panel label.inline { display: inline-flex; gap: .625rem; align-items: center; min-height: 3.5rem; }
input[type="checkbox"], input[type="radio"] { width: 1.75rem; height: 1.75rem; accent-color: var(--ink); flex: none; }
/* Tags shown on the home page are labels, not buttons: keep them compact. */
span.chip { min-height: 2rem; }
.panel select, .panel input[type="month"], .panel input[type="date"], .panel input[type="number"], .panel input[type="text"], .panel input[type="email"], .panel textarea { font: 400 1rem/1.4 var(--f-b), var(--cjk); border: 2px solid var(--edge); border-radius: .625rem; padding: .5rem .625rem; background: #fff; color: var(--ink); min-height: 3.5rem; max-width: 100%; }
.panel textarea { width: 100%; min-height: 8.75rem; }
.actions { display: flex; gap: .625rem; flex-wrap: wrap; align-items: center; padding-top: .25rem; }
.meta { font-size: .8438rem; color: var(--ink2); margin: 0; }
.pb { font: 600 .9375rem/1.2 var(--f-m); }
.paste { border: 2px dashed var(--sky); border-radius: .875rem; padding: .75rem .875rem; background: #F5FAFF; font-size: .9063rem; }
.paste p { margin: 0 0 .375rem; }
.noscript { padding: .875rem; border: 2px solid var(--tom); border-radius: .75rem; background: #fff; }
.keyview { display: grid; gap: .625rem; }

/* ---------- hand-over screen ---------- */
.ho { position: fixed; inset: 0; z-index: 100; background-color: var(--paper); background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 1.5rem 1.5rem; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; padding: max(.625rem, env(safe-area-inset-top)) max(.75rem, env(safe-area-inset-right)) max(.625rem, env(safe-area-inset-bottom)) max(.75rem, env(safe-area-inset-left)); overscroll-behavior: contain; touch-action: manipulation; -webkit-user-select: none; user-select: none; }
.ho:focus { outline: none; }
.ho-bar { display: flex; align-items: center; gap: .625rem; min-height: 3.5rem; }
.ho-bar .timer { font: 600 1.375rem/1 var(--f-m); margin-left: auto; min-width: 5ch; text-align: right; }
.ho-bar .count { font: 600 1rem/1 var(--f-m); color: var(--ink2); }
.ho-main { display: grid; place-items: center; min-height: 0; overflow: auto; padding-block: .5rem; }
.ho-foot { display: grid; justify-items: center; }
.hold { position: relative; width: 3.5rem; height: 3.5rem; border-radius: 50%; border: 2px solid var(--edge); background: #fff; display: grid; place-items: center; cursor: pointer; flex: none; touch-action: none; }
.hold svg { position: absolute; inset: -2px; width: 3.5rem; height: 3.5rem; transform: rotate(-90deg); pointer-events: none; }
.hold circle { fill: none; stroke: var(--ink); stroke-width: 4; stroke-dasharray: 163; stroke-dashoffset: 163; }
.hold.holding circle { transition: stroke-dashoffset 1.2s linear; stroke-dashoffset: 0; }
.hold span { font-size: 1.375rem; line-height: 1; }
.hold-tip { font-size: .75rem; color: var(--ink2); }
.watching { font: 600 .8125rem/1 var(--f-b), var(--cjk); background: var(--ink); color: #fff; border-radius: 62.4375rem; padding: .375rem .625rem; display: none; }
.watching.on { display: inline-block; }
.big { font: 600 clamp(2.5rem, 11vw, 5.5rem)/1.1 var(--f-m); display: flex; align-items: center; gap: .3em; flex-wrap: wrap; justify-content: center; }
.big .ans { min-width: 2.2ch; border-bottom: .25rem solid var(--ink); text-align: center; position: relative; padding: 0 .1em; }
.big .ans.empty::after { content: "?"; color: var(--grid); }
.shake { animation: shake .35s; }
@keyframes shake { 20%, 60% { transform: translateX(-.375rem); } 40%, 80% { transform: translateX(.375rem); } }
.ring { position: absolute; pointer-events: none; overflow: visible; }
.ring circle, .ring path { fill: none; stroke: var(--tom); stroke-width: 5; stroke-linecap: round; stroke-dasharray: 400; stroke-dashoffset: 400; animation: draw .35s ease-out forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.correction { color: var(--tom); font: 700 .5em/1 var(--f-h); }

/* landscape tablets: number pad beside the work */
@media (min-width: 700px) and (min-aspect-ratio: 5/4) {
  .ho { grid-template-columns: minmax(0, 1fr) auto; grid-template-rows: auto minmax(0, 1fr); grid-template-areas: "bar bar" "main foot"; column-gap: 1.25rem; }
  .ho-bar { grid-area: bar; }
  .ho-main { grid-area: main; }
  .ho-foot { grid-area: foot; align-content: center; width: 21.25rem; }
}

/* number pad: never the system keyboard on kid screens */
.pad { display: grid; grid-template-columns: repeat(3, minmax(4rem, 1fr)); gap: .5rem; width: min(100%, 22.5rem); margin: 0 auto; }
.pad.wide { grid-template-columns: repeat(4, minmax(3.5rem, 1fr)); width: min(100%, 27.5rem); }
.pad button { min-height: 3.75rem; border: 2px solid var(--edge); background: #fff; border-radius: .875rem; font: 600 1.625rem/1 var(--f-m); color: var(--ink); cursor: pointer; touch-action: manipulation; }
.pad button:active, .pad button.press { background: #FFF6D8; transform: translateY(1px); }
.pad .enter { background: var(--btn); color: var(--btn-ink); border-color: var(--ink); }
.pad .fn { font-size: 1.25rem; }

/* end-of-set card */
.result { display: grid; gap: .75rem; justify-items: center; text-align: center; max-width: 32.5rem; }
.result .score { font: 600 clamp(1.75rem, 7vw, 2.75rem)/1.1 var(--f-m); }
.result .msg { font-size: 1.125rem; margin: 0; }
.result .missed { font: 600 1.125rem/1.6 var(--f-m); margin: 0; }
.sticker { width: 7.5rem; height: 7.5rem; animation: pop .6s cubic-bezier(.3, .7, .3, 1.4) both; }

/* ---------- fact pages ---------- */
.tbl { overflow-x: auto; margin: .5rem 0 .375rem; }
.tbl table { border-collapse: collapse; background: #fff; min-width: 100%; font-size: .9375rem; }
.tbl th, .tbl td { border: 1.5px solid var(--edge); padding: .375rem .625rem; text-align: left; vertical-align: top; }
.tbl thead th { background: var(--chip); font-weight: 600; }
.tbl tbody th { font-weight: 600; white-space: nowrap; }
.checked { display: inline-block; background: #FFF6D8; border-radius: .5rem; padding: .25rem .625rem; font-size: .875rem; }
.sources li { overflow-wrap: anywhere; }
.exam-list { display: grid; gap: .75rem; padding-left: 1.2em; }

/* ---------- footer ---------- */
footer.site { margin-top: 2.5rem; padding-block: 2.25rem 1.5rem; border-top: 2px solid var(--edge); background: var(--chip); font-size: .875rem; color: var(--ink2); }
.foot { display: grid; grid-template-columns: minmax(0, 1.7fr) repeat(3, minmax(0, 1fr)); gap: 1.75rem 2rem; align-items: start; }
.foot-brand { display: grid; gap: .875rem; justify-items: start; min-width: 0; }
.foot-brand p { margin: 0; max-width: 40ch; color: var(--ink); font-size: .9375rem; }
.foot-clear { display: grid; gap: .375rem; justify-items: start; }
.foot-clear .meta { font-size: .8125rem; max-width: 38ch; }
.foot-col { min-width: 0; }
.foot-col h2 { font: 700 .75rem/1.3 var(--f-b), var(--cjk); letter-spacing: .08em; text-transform: uppercase; color: var(--ink); margin: 0 0 .625rem; }
.foot-col ul { margin: 0; padding: 0; list-style: none; display: grid; gap: .125rem; }
.foot-col a { display: inline-block; padding-block: .25rem; color: var(--ink2); text-decoration: none; }
.foot-col a:hover { color: var(--ink); text-decoration: underline; text-decoration-color: var(--sun); text-decoration-thickness: .1875rem; }
.foot-base { margin-top: 1.75rem; font-size: .8125rem; }
.foot-base p { margin: 0; padding-top: 1rem; border-top: 1.5px dashed var(--ink2); }
.foot-base a { color: var(--ink2); }
.cleared { color: var(--mint); font-weight: 600; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .today { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr; }
  .panel .grid2 { grid-template-columns: 1fr; }
  .stats, .exs, .steps, .pfeats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .faq-grid, .plus-hero, .pfree { grid-template-columns: 1fr; }
  .foot { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
  .yg { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .probs { grid-template-columns: 1fr; }
  .exs, .steps, .pfeats { grid-template-columns: 1fr; }
  .sechead { grid-template-columns: 1fr; }
  .sechead .more { grid-column: 1; grid-row: auto; }
  .foot { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .langs a { padding: .3125rem .5rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media print {
  body { background: #fff; }
  .top, footer.site, .noprint, .ho { display: none !important; }
}
/* live view on the tablet */
.live-wrap { display: grid; gap: .625rem; justify-items: start; }
.live-panel { border: 2px dashed var(--sky); border-radius: .875rem; padding: .75rem; display: grid; gap: .5rem; background: #F5FAFF; }
.live-qr .qr { width: 12.5rem; height: 12.5rem; }
.hold-btn.holding { background: var(--chip); box-shadow: inset 0 -.25rem 0 var(--ink); }
.stamp-toast { position: fixed; top: 4.75rem; right: 1rem; z-index: 120; background: #fff; border: 2px solid var(--ink); border-radius: .875rem; padding: .5rem .75rem; display: grid; gap: .25rem; font: 700 1.125rem/1.3 var(--f-b), var(--cjk); animation: pop .4s both; box-shadow: .1875rem .1875rem 0 var(--sky); }
.ho .watching { background: var(--ink); }

/* Level ladder (tool 15): dots, the note on the result card, the banner on tool pages */
.lad-dots { display: inline-flex; gap: .25rem; vertical-align: middle; }
.lad-dots i { width: .875rem; height: .875rem; border-radius: .1875rem; border: 2px solid var(--ink2); background: #fff; }
.lad-dots i.on { background: var(--ink); border-color: var(--ink); }
.lad-note { border-top: 1.5px dashed var(--edge); margin-top: .625rem; padding-top: .5rem; }
.lad-note .row { display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; }
.lad-banner { background: #FFF6D8; border: 1.5px solid var(--ink); border-radius: .625rem; padding: .625rem .875rem; margin: 0 0 .75rem; }