@font-face {
  font-family: 'Literata Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 200 900;
  src: url(/fonts/literata-cyrillic-ext-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F;
}
@font-face {
  font-family: 'Literata Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 200 900;
  src: url(/fonts/literata-cyrillic-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116;
}
@font-face {
  font-family: 'Literata Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 200 900;
  src: url(/fonts/literata-latin-ext-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Literata Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 200 900;
  src: url(/fonts/literata-latin-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face {
  font-family: 'Golos Text Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 400 900;
  src: url(/fonts/golos-text-cyrillic-ext-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F;
}
@font-face {
  font-family: 'Golos Text Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 400 900;
  src: url(/fonts/golos-text-cyrillic-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116;
}
@font-face {
  font-family: 'Golos Text Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 400 900;
  src: url(/fonts/golos-text-latin-ext-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Golos Text Variable';
  font-style: normal;
  font-display: swap;
  font-weight: 400 900;
  src: url(/fonts/golos-text-latin-wght-normal.woff2) format('woff2-variations');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
/* napdoku.com — light paper, plum ink, sage green. Its own look, unlike the night-blue Yandex site. */
:root {
  --paper: #f7efe1;
  --paper-2: #efe3cd;
  --card: #fffaf0;
  --ink: #2c2233;
  --ink-2: #5a4c60;
  --line: #2c2233;
  --sage: #3f6b4e;
  --sage-2: #335a41;
  --honey: #e3a83c;
  --rust: #9b4a3c;
  --r: 14px;
  --shadow: 4px 4px 0 var(--line);
  --serif: 'Literata Variable', Georgia, serif;
  --sans: 'Golos Text Variable', system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 76px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.6 var(--sans); }
img, svg { max-width: 100%; height: auto; }
a { color: var(--sage-2); text-underline-offset: 3px; }
a:hover { color: var(--rust); }
:focus-visible { outline: 3px solid var(--honey); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--serif); line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(44px, 9vw, 92px); font-weight: 800; }
h2 { font-size: clamp(28px, 4.4vw, 42px); font-weight: 700; }
h3 { font-size: 21px; font-weight: 700; }
p { margin: 0 0 1em; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(760px, 100% - 32px); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--card); padding: 8px 12px; z-index: 9; }
.skip:focus { left: 8px; }
.lead { font-size: 19px; color: var(--ink-2); }
.note { color: var(--ink-2); font-size: 15px; }

/* header */
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(6px); border-bottom: 2px solid var(--line); }
.top-row { display: flex; align-items: center; gap: 18px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 800 22px/1 var(--serif); color: var(--ink); text-decoration: none; }
.brand img { border-radius: 9px; border: 2px solid var(--line); }
.nav { display: flex; gap: 20px; margin-left: auto; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav a:hover, .nav a[aria-current] { color: var(--sage); text-decoration: underline; }
.langs { display: flex; border: 2px solid var(--line); border-radius: 999px; overflow: hidden; }
.langs a { padding: 4px 10px; font-size: 14px; font-weight: 600; color: var(--ink); text-decoration: none; }
.langs a[aria-current] { background: var(--ink); color: var(--paper); }
@media (max-width: 900px) { .nav { display: none; } .langs { margin-left: auto; } }

/* buttons */
.btn { display: inline-flex; flex-direction: column; justify-content: center; gap: 2px; padding: 12px 22px; border: 2px solid var(--line); border-radius: var(--r); background: var(--card); color: var(--ink); text-decoration: none; box-shadow: var(--shadow); transition: transform .12s, box-shadow .12s; }
.btn:hover { color: var(--ink); transform: translate(-1px, -1px); box-shadow: 5px 5px 0 var(--line); }
.btn:active { transform: translate(3px, 3px); box-shadow: 1px 1px 0 var(--line); }
.btn b { font-size: 18px; font-weight: 700; }
.btn small { font-size: 13px; color: var(--ink-2); }
.btn-go { background: var(--sage); color: #fff; }
.btn-go:hover { color: #fff; background: var(--sage-2); }
.btn-go small { color: #dfeadf; }
.btn-sm { padding: 7px 16px; font-weight: 700; box-shadow: 3px 3px 0 var(--line); }
.ctas { display: flex; flex-wrap: wrap; gap: 16px; margin: 26px 0 18px; }
@media (max-width: 520px) { .ctas .btn { flex: 1 1 100%; } }

/* paper sheets */
.sheet { background: var(--card); border: 2px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); margin: 0; }

/* hero */
.hero { padding: 56px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.kicker { display: inline-block; margin-bottom: 14px; padding: 4px 12px; background: var(--honey); border: 2px solid var(--line); border-radius: 999px; font-weight: 700; font-size: 14px; }
.hero h1 { margin-bottom: .15em; }
.sub { font: 600 clamp(21px, 2.6vw, 27px)/1.3 var(--serif); margin-bottom: 18px; }
.facts { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 0; }
.facts li { padding: 3px 12px; border: 1.5px solid var(--ink-2); border-radius: 999px; font-size: 14px; color: var(--ink-2); }
.hero-board { padding: 22px; transform: rotate(-2deg); justify-self: center; width: min(100%, 440px); }
.hero-board .board { width: 100%; display: block; }
@media (max-width: 860px) { .hero { padding-top: 32px; } .hero-grid { grid-template-columns: 1fr; gap: 32px; } .hero-board { width: min(100%, 360px); } }

/* blocks */
.block { padding: 72px 0; }
.block-tint { background: var(--paper-2); border-block: 2px solid var(--line); }
.block-head { max-width: 720px; margin-bottom: 32px; }
.block-head p { color: var(--ink-2); font-size: 18px; }
@media (max-width: 640px) { .block { padding: 52px 0; } }

/* rules */
.rules { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: r; }
.rules li { padding: 20px; counter-increment: r; }
.rules h3::before { content: counter(r) '. '; color: var(--sage); }
.rules p { margin: 0; color: var(--ink-2); }
.rule-art { margin-bottom: 14px; }
.board.mini { width: 100%; max-width: 230px; display: block; margin: 0 auto; }
@media (max-width: 860px) { .rules { grid-template-columns: 1fr; } }

/* example */
.ex-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: center; }
.ex-grid .sheet { padding: 22px; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.board.mid { width: 100%; display: block; }
.cap { margin: 10px 0 0; font-size: 14px; text-align: center; color: var(--ink-2); }
.more { font-weight: 600; }
@media (max-width: 860px) { .ex-grid { grid-template-columns: 1fr; } }
@media (max-width: 420px) { .pair { gap: 12px; } }

/* tables */
.table-wrap { overflow-x: auto; border: 2px solid var(--line); border-radius: var(--r); background: var(--card); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; font-size: 16px; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid color-mix(in srgb, var(--line) 18%, transparent); vertical-align: middle; }
thead th { font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-2); background: var(--paper-2); }
tbody tr:last-child > * { border-bottom: 0; }
tbody th { font-weight: 600; white-space: nowrap; }
.ch-n { display: inline-grid; place-items: center; width: 26px; height: 26px; margin-right: 6px; border-radius: 50%; background: var(--ink); color: var(--paper); font-size: 13px; }
.who { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; }
.mix { display: inline-flex; gap: 4px; }
.m { display: inline-grid; place-items: center; min-width: 34px; height: 28px; border-radius: 7px; font-size: 14px; font-weight: 600; border: 1.5px solid var(--line); }
.m0 { background: #d9ead9; } .m1 { background: #f3e1a6; } .m2 { background: #efc3a6; } .m3 { background: #dcb4c9; }
.chapters td:nth-child(3) { white-space: nowrap; }
.techtable td { text-align: center; background: color-mix(in srgb, var(--sage) calc(var(--p) * 42%), transparent); font-variant-numeric: tabular-nums; }
.techtable thead th:not(:first-child) { text-align: center; text-transform: none; letter-spacing: 0; font-size: 13px; }

/* modes */
.modes { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.modes li { padding: 20px; }
.modes p { margin: 0; color: var(--ink-2); font-size: 16px; }
.big { display: block; font: 800 44px/1 var(--serif); color: var(--sage); margin-bottom: 8px; }
.hint-box { max-width: 760px; padding: 18px 22px; border-left: 6px solid var(--honey); background: var(--card); border-radius: 0 var(--r) var(--r) 0; }
.hint-box p { margin: 0; }
@media (max-width: 1000px) { .modes { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .modes { grid-template-columns: 1fr; } }

/* screenshots */
.shots { list-style: none; padding: 0; margin: 0; display: flex; gap: 28px; justify-content: center; }
.shots li { width: 260px; flex: none; }
.shots img { display: block; width: 100%; border: 2px solid var(--line); border-radius: 22px; box-shadow: var(--shadow); background: var(--card); }
.shots li:nth-child(2) { transform: translateY(24px); }
.shots figure { margin: 0; }
.shots figcaption { margin-top: 12px; text-align: center; font-size: 15px; color: var(--ink-2); }
@media (max-width: 860px) { .shots { overflow-x: auto; justify-content: flex-start; scroll-snap-type: x mandatory; padding: 4px 4px 30px; } .shots li { width: 62vw; max-width: 260px; scroll-snap-align: center; } .shots li:nth-child(2) { transform: none; } }

/* app */
.where { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin: 0 0 36px; }
.where .sheet { padding: 20px; }
.where dt { font: 700 21px/1.2 var(--serif); margin-bottom: 8px; }
.where dd { margin: 0; color: var(--ink-2); font-size: 16px; }
.apk-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.steps { padding-left: 22px; margin: 0 0 14px; }
.steps li { margin-bottom: 6px; }
.gift { padding: 20px 22px; border: 2px dashed var(--ink-2); border-radius: var(--r); }
.gift img { float: right; margin: 0 0 8px 12px; }
.gift p { margin: 0; }
@media (max-width: 860px) { .where, .apk-grid { grid-template-columns: 1fr; } }

/* faq */
.faq details { border-bottom: 2px solid var(--line); padding: 4px 0; }
.faq details:first-child { border-top: 2px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 14px 36px 14px 0; position: relative; font: 600 19px/1.35 var(--serif); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 4px; top: 10px; font: 400 28px/1 var(--sans); color: var(--sage); }
.faq details[open] summary::after { content: '−'; }
.faq p { color: var(--ink-2); padding-right: 24px; }

/* final */
.final { padding: 72px 0 80px; background: var(--sage); color: #fff; border-top: 2px solid var(--line); text-align: center; }
.final .lead { color: #e3eee3; }
.final .ctas { justify-content: center; }

/* pages */
.page { padding: 48px 0 72px; max-width: 900px; }
.page > h2 { margin-top: 1.6em; }
.rules-row { margin-bottom: 8px; }
.tech { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 20px; counter-reset: t; }
.tech li { padding: 18px 20px; counter-increment: t; }
.tech h3::before { content: counter(t) '. '; color: var(--sage); }
.tech .count { display: inline-block; margin: -2px 0 10px; padding: 1px 10px; border-radius: 999px; background: var(--paper-2); font-size: 13px; font-weight: 600; }
.tech p:last-child { margin: 0; color: var(--ink-2); }
@media (max-width: 720px) { .tech { grid-template-columns: 1fr; } }
.page-cta { margin-top: 32px; }
.prose { max-width: 760px; }
.prose h2 { font-size: 25px; }
.updated { color: var(--ink-2); font-size: 15px; }
.nf { text-align: center; max-width: 520px; }
.nf .board { width: 200px; margin: 0 auto 20px; display: block; transform: rotate(3deg); }

/* footer */
.foot { padding: 32px 0 28px; border-top: 2px solid var(--line); background: var(--paper-2); font-size: 15px; }
.foot-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.foot-langs { display: flex; gap: 14px; margin-left: auto; }
.foot-note { margin: 18px auto 0; color: var(--ink-2); font-size: 13px; }

@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }

/* small screens and fixes */
.btn-sm { white-space: nowrap; }
.table-wrap + .note { margin-top: 14px; }
.prose p { overflow-wrap: anywhere; }
@media (max-width: 420px) { .top-row { gap: 10px; } .brand { font-size: 19px; gap: 8px; } .brand img { width: 30px; height: 30px; } }
@media (max-width: 640px) {
  .chapters thead { display: none; }
  .chapters, .chapters tbody, .chapters tr, .chapters th, .chapters td { display: block; }
  .chapters tr { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; padding: 14px 16px; border-bottom: 1px solid color-mix(in srgb, var(--line) 18%, transparent); }
  .chapters tbody tr:last-child { border-bottom: 0; }
  .chapters th, .chapters td { padding: 0; border: 0; }
  .chapters th { grid-area: 1 / 1; align-self: center; }
  .chapters td:nth-child(2) { grid-area: 2 / 1; align-self: center; }
  .chapters td:nth-child(3) { grid-area: 1 / 2; text-align: right; align-self: center; font-weight: 600; }
  .chapters td:nth-child(4) { grid-area: 2 / 2; align-self: center; }
}
.mix-key { display: none; margin: 14px 0 0; font-size: 14px; color: var(--ink-2); }
.mix-key .m { min-width: 14px; height: 14px; margin: 0 4px 0 8px; vertical-align: -2px; }
.mix-key .m:first-child { margin-left: 0; }
.mix-key + .note { margin-top: 6px; }
@media (max-width: 640px) { .mix-key { display: block; } }