/* Zdash — "Zeszyt w kratkę". One stylesheet for the whole site. */

:root {
  color-scheme: light;
  --bg: #F7F2F3;
  --grid: #E9DDE3;
  --surface: #FFFFFF;
  --sunken: #EEE6EA;
  --text: #22182B;
  --muted: #5C5064;
  --primary: #6A2C84;
  --primary-pressed: #58206F;
  --on-primary: #FFFFFF;
  --primary-soft: #EFE2F5;
  --on-primary-soft: #4E1D63;
  --accent: #FFD23F;
  --accent-soft: #FFF1BF;
  --on-accent: #22182B;
  --success: #1A6E45;
  --success-soft: #DCF2E5;
  --danger: #B0213D;
  --danger-soft: #FBE1E6;
  --border: #E3D9DF;
  --border-strong: #877A8E;
  --focus: #6A2C84;
  --shadow: 0 1px 2px rgba(58, 31, 69, .08), 0 10px 30px -12px rgba(58, 31, 69, .28);

  --font-display: "Bricolage Grotesque", "Atkinson Hyperlegible Next", system-ui, sans-serif;
  --font-text: "Atkinson Hyperlegible Next", system-ui, -apple-system, "Segoe UI", sans-serif;

  --cell: 16px;
  --gutter: 16px;
  --max: 1160px;
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #1D1720;
    --grid: #2A2230;
    --surface: #272029;
    --sunken: #18131B;
    --text: #F5EEF2;
    --muted: #BDB1C1;
    --primary: #DBA9F2;
    --primary-pressed: #C98FE6;
    --on-primary: #2A0F38;
    --primary-soft: #3E2A4A;
    --on-primary-soft: #EBCFF8;
    --accent-soft: #4A3D12;
    --success: #72D8A3;
    --success-soft: #1D3A2C;
    --danger: #FF94A7;
    --danger-soft: #4A2230;
    --border: #40354A;
    --border-strong: #8A7C90;
    --focus: #FFD23F;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 14px 34px -14px rgba(0, 0, 0, .7);
  }
}

@media (min-width: 414px) { :root { --gutter: 20px; } }
@media (min-width: 900px) { :root { --gutter: 40px; } }

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--cell) var(--cell);
  color: var(--text);
  font-family: var(--font-text);
  font-size: 1.0625rem;
  line-height: 1.6;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--primary); text-underline-offset: .18em; text-decoration-thickness: 1.5px; }
a:hover { text-decoration-thickness: 3px; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.12;
  margin: 0;
  text-wrap: balance;
}
h2 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.75rem); font-weight: 800; letter-spacing: -.02em; }
h3 { font-size: 1.25rem; font-weight: 700; letter-spacing: -.005em; }
p { margin: 0; }
p + p { margin-top: .8em; }

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 50;
  background: var(--primary); color: var(--on-primary); padding: 10px 16px; border-radius: var(--r-sm);
  font-weight: 700; text-decoration: none;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { max-width: 760px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.brand span { font-family: var(--font-display); font-weight: 800; font-size: 1.375rem; letter-spacing: -.02em; }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a { color: var(--text); text-decoration: none; font-weight: 700; padding: 10px 12px; border-radius: var(--r-sm); font-size: 1rem; }
.site-nav a:hover { background: var(--primary-soft); color: var(--on-primary-soft); }
.site-nav .nav-cta { background: var(--primary); color: var(--on-primary); }
.site-nav .nav-cta:hover { background: var(--primary-pressed); color: var(--on-primary); }
@media (max-width: 640px) { .site-nav .hide-sm { display: none; } }

/* ---------- highlighter ---------- */
.hl {
  position: relative;
  z-index: 0;
  white-space: nowrap;
}
.hl::before {
  content: "";
  position: absolute; z-index: -1;
  left: -.12em; right: -.18em; top: .52em; bottom: .02em;
  background: var(--accent);
  border-radius: .12em .3em .18em .35em;
  transform: rotate(-1.6deg) skewX(-8deg);
  transform-origin: left center;
}
.js .hero .hl::before { transform: rotate(-1.6deg) skewX(-8deg) scaleX(0); animation: swipe .7s cubic-bezier(.2, .8, .2, 1) .35s forwards; }
@keyframes swipe { to { transform: rotate(-1.6deg) skewX(-8deg) scaleX(1); } }

/* ---------- hero ---------- */
.hero { padding-block: clamp(40px, 7vw, 96px) clamp(48px, 7vw, 88px); }
.hero .wrap { display: grid; gap: clamp(40px, 5vw, 72px); align-items: center; }
@media (min-width: 960px) { .hero .wrap { grid-template-columns: 1.1fr .9fr; } }

.hero h1 {
  font-size: clamp(3.5rem, 2rem + 8vw, 7.5rem);
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: .98;
}
.hero h1 .line { display: block; }
.hero h1 .ink { color: var(--primary); }
@media (prefers-color-scheme: dark) { .hero h1 .hl { color: var(--on-accent); } .hero h1 .hl::before { top: .1em; bottom: -.04em; } }
.hero .lede { margin-top: 28px; font-size: clamp(1.125rem, 1rem + .5vw, 1.3125rem); max-width: 34em; line-height: 1.55; }
.hero .lede strong { font-weight: 700; }

.stores { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.store {
  display: inline-flex; align-items: center; gap: 12px;
  min-height: 56px; padding: 8px 20px 8px 14px;
  background: var(--text); color: var(--bg);
  border-radius: var(--r-sm);
  text-decoration: none; line-height: 1.15;
  box-shadow: 0 3px 0 0 var(--primary);
  transition: transform .12s ease, box-shadow .12s ease;
}
.store:hover { transform: translateY(-1px); box-shadow: 0 4px 0 0 var(--primary); }
.store:active { transform: translateY(2px); box-shadow: 0 1px 0 0 var(--primary); }
.store svg { width: 26px; height: 26px; flex: none; }
.store small { display: block; font-size: .8125rem; font-weight: 400; opacity: .85; }
.store b { display: block; font-family: var(--font-display); font-weight: 700; font-size: 1.1875rem; letter-spacing: -.01em; }
.soon { margin-top: 14px; color: var(--muted); font-size: .9375rem; }

/* ---------- task demo card ---------- */
.demo {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  padding: 22px 20px 20px;
  max-width: 520px;
  width: 100%;
  justify-self: center;
}
@media (min-width: 480px) { .demo { padding: 28px 28px 24px; } }
.demo-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.demo-head h2 { font-size: 1.1875rem; font-weight: 700; letter-spacing: 0; }
.demo-head .pts { color: var(--muted); font-size: .875rem; font-weight: 700; }
.demo .instr { margin-top: 14px; font-weight: 700; font-size: 1rem; }
.demo .stem { margin-top: 6px; font-size: 1.125rem; }
.math { font-family: "Times New Roman", "Cambria Math", "STIX Two Math", serif; font-size: 1.2em; white-space: nowrap; }
.math i { font-style: italic; }
.sqrt { display: inline-flex; align-items: flex-start; }
.sqrt .rad { border-top: 1.5px solid currentColor; padding: 0 .08em; margin-left: .02em; line-height: 1.15; }
.math sup { font-size: .7em; }

.options { list-style: none; margin: 18px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.opt {
  width: 100%; min-height: 56px;
  display: flex; align-items: center; gap: 12px;
  padding: 8px 14px;
  background: var(--surface); color: var(--text);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--r-sm);
  font: inherit; font-size: 1.125rem; text-align: left;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease;
}
.opt:hover:not([disabled]) { border-color: var(--primary); background: var(--primary-soft); }
.opt .letter {
  flex: none; width: 30px; height: 30px; border-radius: var(--r-xs);
  display: grid; place-items: center;
  font-weight: 700; font-size: .9375rem;
  background: var(--sunken); color: var(--text);
}
.opt[disabled] { cursor: default; }
.opt.is-right { background: var(--success-soft); border-color: var(--success); }
.opt.is-right .letter { background: var(--success); color: var(--surface); }
.opt.is-wrong { background: var(--danger-soft); border-color: var(--danger); }
.opt.is-wrong .letter { background: var(--danger); color: var(--surface); }
.opt .mark { margin-left: auto; font-weight: 700; font-size: .875rem; }
.opt.is-right .mark { color: var(--success); }
.opt.is-wrong .mark { color: var(--danger); }

.feedback { margin-top: 14px; min-height: 1.6em; font-size: 1rem; }
.feedback[hidden] { display: none; }
.feedback b { font-family: var(--font-display); font-size: 1.125rem; }
.feedback .again { margin-left: 4px; background: none; border: 0; padding: 4px 2px; color: var(--primary); font: inherit; font-weight: 700; text-decoration: underline; text-underline-offset: .18em; cursor: pointer; }
.source { margin-top: 16px; padding-top: 12px; border-top: 1px dashed var(--border-strong); color: var(--muted); font-size: .8125rem; font-weight: 700; line-height: 1.45; }

/* ---------- promises strip ---------- */
.promises { background: var(--accent); color: var(--on-accent); }
.promises ul {
  list-style: none; margin: 0; padding: 22px 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 24px;
}
@media (min-width: 820px) { .promises ul { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.promises li { display: flex; gap: 10px; align-items: flex-start; font-weight: 700; line-height: 1.3; font-size: 1.0625rem; }
.promises li svg { flex: none; width: 24px; height: 24px; margin-top: -1px; color: #6A2C84; }
.promises li span small { display: block; font-weight: 400; font-size: .9375rem; margin-top: 2px; }

/* ---------- sections ---------- */
.section { padding-block: clamp(64px, 9vw, 120px); }
.section-head { max-width: 40rem; }
.section-head p { margin-top: 16px; color: var(--muted); font-size: 1.125rem; }

/* sources table */
.sheets { margin-top: 40px; display: grid; gap: 20px; }
@media (min-width: 860px) { .sheets { grid-template-columns: 1fr 1fr; } }
.sheet {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 24px 22px;
}
.sheet h3 { font-size: 1.5rem; }
.sheet .count { margin-top: 6px; color: var(--muted); font-weight: 700; }
.sheet .count strong { color: var(--text); font-family: var(--font-display); font-size: 1.5rem; font-weight: 800; }
.years { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.years li {
  padding: 6px 12px; border-radius: 999px;
  background: var(--primary-soft); color: var(--on-primary-soft);
  font-weight: 700; font-size: .9375rem;
}
.sheet .note { margin-top: 16px; font-size: .9375rem; color: var(--muted); }
.fine { margin-top: 24px; color: var(--muted); font-size: .9375rem; max-width: 46rem; }

/* features */
.features { margin-top: 48px; display: grid; gap: 0; border-top: 2px solid var(--text); }
@media (min-width: 700px) { .features { grid-template-columns: 1fr 1fr; column-gap: 48px; } }
@media (min-width: 1040px) { .features { grid-template-columns: repeat(3, 1fr); } }
.feature { padding: 26px 0 28px; border-bottom: 1px solid var(--border-strong); display: grid; grid-template-columns: 40px 1fr; column-gap: 14px; align-content: start; }
.feature svg { width: 32px; height: 32px; color: var(--primary); grid-row: span 2; margin-top: 2px; }
.feature p { margin-top: 8px; color: var(--muted); }
.feature p strong { color: var(--text); }

/* steps */
.steps-bg { background: var(--surface); border-block: 1px solid var(--border); }
.steps { list-style: none; counter-reset: step; margin: 48px 0 0; padding: 0; display: grid; gap: 36px; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 40px; } }
.steps li { counter-increment: step; position: relative; padding-top: 84px; }
.steps li::before {
  content: counter(step);
  position: absolute; top: 0; left: 0;
  width: 64px; height: 64px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800; font-size: 2.25rem; line-height: 1;
  color: var(--on-accent); background: var(--accent);
  border-radius: 46% 54% 50% 50% / 55% 48% 52% 45%;
}
.steps p { margin-top: 8px; color: var(--muted); }

/* screenshots */
.shots {
  margin-top: 48px;
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(220px, 1fr);
  gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 8px 4px 20px; margin-inline: -4px;
  overscroll-behavior-x: contain;
}
.shots figure { margin: 0; scroll-snap-align: start; }
.phone {
  background: var(--text); padding: 9px; border-radius: 38px;
  box-shadow: var(--shadow);
}
.phone img {
  width: 100%; height: auto; aspect-ratio: 1290 / 2796;
  border-radius: 30px; background: var(--sunken); object-fit: cover;
  color: var(--muted); font-size: .875rem;
}
.shots figcaption { margin-top: 14px; font-weight: 700; font-size: 1rem; }
.shots figcaption span { display: block; font-weight: 400; color: var(--muted); font-size: .9375rem; }

/* countdown */
.countdown {
  margin-top: 0;
  background: var(--accent-soft);
  border-radius: var(--r-lg);
  padding: clamp(28px, 5vw, 56px);
  display: grid; gap: 24px; align-items: center;
}
@media (min-width: 860px) { .countdown { grid-template-columns: auto 1fr; gap: 56px; } }
.cd-number { font-family: var(--font-display); font-weight: 800; line-height: .9; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.cd-number .n { font-size: clamp(5rem, 3rem + 10vw, 9.5rem); display: inline-block; position: relative; z-index: 0; }
.cd-number .n::before {
  content: ""; position: absolute; z-index: -1; left: -.05em; right: -.08em; top: .5em; bottom: .02em;
  background: var(--accent); border-radius: .1em .3em .15em .3em; transform: rotate(-1.5deg) skewX(-8deg);
}
@media (prefers-color-scheme: dark) { .cd-number .n { color: var(--on-accent); } .cd-number .n::before { left: -.12em; right: -.12em; top: .08em; } }
.cd-number .unit { display: block; font-size: 1.5rem; font-weight: 700; margin-top: 10px; letter-spacing: -.01em; }
.cd-text h2 { font-size: clamp(1.5rem, 1.1rem + 1.6vw, 2.125rem); }
.cd-date { margin-top: 10px; font-weight: 700; }
.cd-line { margin-top: 12px; }
.cd-clock { margin-top: 14px; color: var(--muted); font-variant-numeric: tabular-nums; font-size: .9375rem; }
.cd-en { margin-top: 18px; padding-top: 14px; border-top: 1px dashed var(--border-strong); font-size: .9375rem; }

/* faq */
.faq { margin-top: 40px; border-top: 2px solid var(--text); }
.faq details { border-bottom: 1px solid var(--border-strong); }
.faq summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 2px;
  font-family: var(--font-display); font-weight: 700; font-size: 1.1875rem; line-height: 1.3;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; flex: none; width: 14px; height: 14px;
  border-right: 2.5px solid var(--primary); border-bottom: 2.5px solid var(--primary);
  transform: translateY(-3px) rotate(45deg); transition: transform .2s ease;
}
.faq details[open] summary::after { transform: translateY(3px) rotate(-135deg); }
.faq summary:hover { color: var(--primary); }
.faq .answer { padding: 0 2px 22px; max-width: 44rem; }
.faq .answer p { color: var(--muted); }
.faq .answer p strong { color: var(--text); }

/* final cta */
.final { text-align: center; }
.final h2 { font-size: clamp(2.5rem, 1.5rem + 5vw, 5rem); letter-spacing: -.04em; }
.final p { margin: 18px auto 0; max-width: 32rem; color: var(--muted); font-size: 1.125rem; }
.final .stores { justify-content: center; }

/* ---------- footer ---------- */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); padding-block: 48px 40px; font-size: .9375rem; }
.site-footer .cols { display: grid; gap: 32px; }
@media (min-width: 820px) { .site-footer .cols { grid-template-columns: 1.4fr 1fr 1fr; } }
.site-footer h2 { font-size: 1.0625rem; font-weight: 700; letter-spacing: 0; margin-bottom: 10px; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer a { font-weight: 700; }
.site-footer .disclaimer { color: var(--muted); margin-top: 12px; max-width: 34rem; }
.site-footer .bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }

/* ---------- legal pages ---------- */
.doc { padding-block: clamp(40px, 6vw, 80px) clamp(64px, 8vw, 104px); }
.doc-paper {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  box-shadow: var(--shadow);
  padding: clamp(24px, 5vw, 64px);
}
.doc h1 { font-size: clamp(2.25rem, 1.6rem + 3vw, 3.5rem); font-weight: 800; letter-spacing: -.035em; }
.doc .meta { margin-top: 12px; color: var(--muted); font-weight: 700; }
.doc .summary { margin-top: 28px; background: var(--accent-soft); border-radius: var(--r-md); padding: 20px 22px; }
.doc .summary h2 { font-size: 1.25rem; letter-spacing: 0; font-weight: 700; margin: 0 0 8px; }
.doc .summary ul { margin: 0; padding-left: 1.2em; }
.doc .summary li + li { margin-top: 4px; }
.doc .toc { margin-top: 28px; padding: 18px 22px; border: 1px dashed var(--border-strong); border-radius: var(--r-md); }
.doc .toc h2 { font-size: 1.0625rem; letter-spacing: 0; font-weight: 700; margin: 0 0 8px; }
.doc .toc ol { margin: 0; padding-left: 1.4em; columns: 2 16rem; column-gap: 32px; }
.doc .toc li { break-inside: avoid; margin-bottom: 4px; }
.doc section { margin-top: 44px; }
.doc section > h2 { font-size: clamp(1.375rem, 1.2rem + .8vw, 1.75rem); font-weight: 700; letter-spacing: -.01em; padding-bottom: 10px; border-bottom: 2px solid var(--text); margin-bottom: 18px; }
.doc h3 { margin: 24px 0 8px; font-size: 1.125rem; }
.doc ol, .doc ul { padding-left: 1.4em; }
.doc li { margin-bottom: 8px; }
.doc li > ol, .doc li > ul { margin-top: 8px; }
.doc .legal-list { counter-reset: item; list-style: none; padding-left: 0; }
.doc .legal-list > li { counter-increment: item; position: relative; padding-left: 2.2em; }
.doc .legal-list > li::before { content: counter(item) "."; position: absolute; left: 0; font-weight: 700; color: var(--primary); }
.doc .table-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--border-strong); border-radius: var(--r-sm); }
.doc table { border-collapse: collapse; width: 100%; min-width: 620px; font-size: .9375rem; line-height: 1.5; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.doc th { background: var(--sunken); font-weight: 700; }
.doc tr:last-child td { border-bottom: 0; }
.doc .callout { margin: 18px 0; padding: 16px 18px; border-left: 4px solid var(--primary); background: var(--primary-soft); border-radius: 0 var(--r-sm) var(--r-sm) 0; }
.doc .callout p { color: var(--text); }
.doc address { font-style: normal; }
.back { display: inline-block; margin-bottom: 20px; font-weight: 700; }

/* ---------- 404 ---------- */
.notfound { min-height: 70vh; display: grid; place-items: center; text-align: center; padding-block: 64px; }
.notfound .big { font-family: var(--font-display); font-weight: 800; font-size: clamp(6rem, 4rem + 12vw, 12rem); line-height: .9; letter-spacing: -.05em; color: var(--primary); }
.notfound h1 { margin-top: 16px; font-size: clamp(1.75rem, 1.3rem + 2vw, 2.5rem); }
.notfound p { margin: 14px auto 0; max-width: 30rem; color: var(--muted); font-size: 1.125rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 24px;
  background: var(--primary); color: var(--on-primary); border-radius: var(--r-sm);
  font-weight: 700; text-decoration: none; margin-top: 28px;
}
.btn:hover { background: var(--primary-pressed); text-decoration: none; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

@media print {
  body { background: #fff; color: #000; }
  .site-header, .site-footer, .back { display: none; }
  .doc-paper { box-shadow: none; border: 0; padding: 0; }
}

@media (max-width: 419px) {
  .options { grid-template-columns: 1fr; }
}