/* Grafinya — «тетрадь в клетку». Цвета как в приложении grafinya (Grafinya/UI/Theme.swift). */
:root {
  --paper: #FCFCF8;
  --grid: #E3EAF2;
  --ink: #2340B8;
  --ink-deep: #1A2F8A;
  --violet: #7B61FF;
  --violet-soft: rgba(150, 118, 255, .28);
  --margin: #E9A3A3;
  --red: #D93A3A;
  --green: #1E8A3E;
  --text: #2A2F3C;
  --muted: #4A5060;
  --faint: #8F95A3;
  --row: #B9C7E8;
  --card: rgba(252, 252, 248, .92);
  --code-bg: #F3F5FB;
  --cell: 20px;
  --wrap: 1080px;
  --hand: 'Caveat', 'Segoe Print', cursive;
  --body: 'Golos Text', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --radius: 14px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 84px; }
body {
  margin: 0;
  font: 400 17px/1.6 var(--body);
  color: var(--text);
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--cell) var(--cell);
  background-attachment: local;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}
/* красное поле справа, как в тетради */
body::after {
  content: '';
  position: fixed;
  top: 0; bottom: 0;
  right: max(28px, calc((100vw - var(--wrap)) / 2 - 56px));
  width: 2px;
  background: var(--margin);
  pointer-events: none;
  z-index: 0;
}
img { max-width: 100%; height: auto; }
a { color: var(--ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--violet); }
:focus-visible { outline: 2px dashed var(--violet); outline-offset: 3px; border-radius: 4px; }
code { font-family: var(--mono); font-size: .88em; background: var(--code-bg); padding: .1em .38em; border-radius: 6px; color: var(--ink-deep); word-break: break-word; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 8px; }

h1, h2, h3, .hand { font-family: var(--hand); color: var(--ink); font-weight: 700; line-height: 1.1; letter-spacing: .2px; }
h1 { font-size: clamp(46px, 8vw, 78px); margin: 0 0 .25em; }
h2 { font-size: clamp(36px, 5.4vw, 50px); margin: 0 0 .4em; }
h3 { font-size: 30px; margin: 0 0 .3em; }
p { margin: 0 0 1em; }
.lead { font-size: 19px; color: var(--muted); max-width: 640px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
mark, .marker {
  background: linear-gradient(100deg, rgba(150,118,255,.40) 0%, rgba(150,118,255,.22) 60%, rgba(150,118,255,.36) 100%);
  color: inherit; padding: 0 .18em; border-radius: 4px; box-decoration-break: clone; -webkit-box-decoration-break: clone;
}
.underline { background: linear-gradient(transparent 62%, rgba(150,118,255,.38) 62%, rgba(150,118,255,.38) 92%, transparent 92%); }

/* ---------- шапка ---------- */
.top {
  position: sticky; top: 0; z-index: 20;
  background: rgba(252, 252, 248, .9);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--row);
}
.top-in { max-width: var(--wrap); margin: 0 auto; padding: 10px 16px; display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 700 32px/1 var(--hand); color: var(--ink); margin-right: auto; }
.brand img { border-radius: 8px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { text-decoration: none; color: var(--text); padding: 8px 12px; border-radius: 10px; font-weight: 500; font-size: 15px; }
.nav a:hover { background: rgba(35, 64, 184, .06); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--violet-soft); }
.nav .lang { margin-left: 8px; border: 1.5px solid var(--row); color: var(--muted); font-size: 14px; }
.nav .lang b { color: var(--ink); }
.burger { display: none; width: 44px; height: 44px; border: 1.5px solid var(--row); border-radius: 12px; background: var(--paper); cursor: pointer; padding: 11px 10px; flex-direction: column; justify-content: space-between; }
.burger span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 820px) {
  .burger { display: flex; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 2px; padding: 8px 16px 16px; background: var(--paper); border-bottom: 1px solid var(--row); box-shadow: 0 12px 24px rgba(26, 47, 138, .08); }
  .nav.open { display: flex; }
  .nav a { padding: 12px; font-size: 17px; }
  .nav .lang { margin: 6px 0 0; text-align: center; }
}

/* ---------- раскладка ---------- */
main { position: relative; z-index: 1; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
section { padding: 56px 0; }
.section-head { max-width: 720px; margin-bottom: 28px; }
.eyebrow { font: 600 13px/1 var(--body); letter-spacing: .12em; text-transform: uppercase; color: var(--violet); margin-bottom: 12px; }

.btns { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 0; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 13px 20px; min-height: 48px; border-radius: 12px;
  font: 600 16px/1.2 var(--body); text-decoration: none; cursor: pointer;
  border: 2px solid var(--ink); color: var(--ink); background: var(--paper);
  box-shadow: 3px 3px 0 var(--ink); transition: transform .12s, box-shadow .12s, background .12s;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); color: var(--ink); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.btn.primary { background: var(--violet); border-color: var(--ink-deep); color: #fff; box-shadow: 3px 3px 0 var(--ink-deep); }
.btn.primary:hover { color: #fff; box-shadow: 4px 4px 0 var(--ink-deep); }
.btn.disabled { opacity: .6; cursor: default; box-shadow: none; border-style: dashed; }
.btn svg { width: 20px; height: 20px; flex: none; }

.card {
  background: var(--card); border: 1.5px solid var(--row); border-radius: var(--radius);
  padding: 22px; position: relative;
}
.card h3 { margin-top: 2px; }
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }
.num { font: 700 44px/1 var(--hand); color: var(--violet); }
.tag { display: inline-block; font: 600 12px/1 var(--body); letter-spacing: .06em; text-transform: uppercase; color: var(--ink); background: rgba(35, 64, 184, .07); padding: 6px 9px; border-radius: 999px; margin-bottom: 10px; }

/* ---------- главная ---------- */
.hero { padding: 48px 0 32px; }
.hero-in { display: grid; grid-template-columns: 1.25fr .75fr; gap: 24px; align-items: center; }
.hero h1 .sub { display: block; font-size: .56em; color: var(--text); font-weight: 600; margin-top: 6px; }
.hero-art { position: relative; justify-self: center; }
.hero-art img { width: min(360px, 100%); filter: drop-shadow(0 8px 18px rgba(35, 64, 184, .12)); }
.bubble {
  position: absolute; top: 4%; left: -18%; max-width: 210px;
  font: 600 24px/1.15 var(--hand); color: var(--ink);
  background: var(--paper); border: 2px solid var(--ink); border-radius: 18px; padding: 10px 14px;
  transform: rotate(-4deg);
}
.bubble::after { content: ''; position: absolute; right: 28px; bottom: -11px; width: 18px; height: 18px; background: var(--paper); border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: rotate(45deg); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; padding: 0; list-style: none; }
.chips li { font-size: 14px; border: 1.5px dashed var(--row); border-radius: 999px; padding: 5px 12px; color: var(--muted); background: var(--card); }
@media (max-width: 820px) {
  .hero-in { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art img { width: 150px; }
  .bubble { left: auto; right: -120px; top: 10%; font-size: 20px; max-width: 150px; }
}
@media (max-width: 420px) { .bubble { display: none; } }

.parts .card { padding-top: 26px; }
.parts .card img.part-art { position: absolute; right: 12px; bottom: 10px; width: 64px; opacity: .9; }
.parts .card p { margin-bottom: 0; }
.parts .card .more { display: inline-block; margin-top: 12px; font-weight: 600; }

.features { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.features li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: start; background: var(--card); border: 1.5px solid var(--row); border-radius: var(--radius); padding: 18px; }
.features .ico { width: 44px; height: 44px; border-radius: 12px; background: var(--violet-soft); display: grid; place-items: center; color: var(--ink); }
.features .ico svg { width: 24px; height: 24px; }
.features b { display: block; color: var(--ink); font-size: 17px; margin-bottom: 4px; }
.features p { margin: 0; color: var(--muted); font-size: 15.5px; }
@media (max-width: 720px) { .features { grid-template-columns: 1fr; } }

.steps-mini { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.steps-mini li { counter-increment: s; background: var(--card); border: 1.5px solid var(--row); border-radius: var(--radius); padding: 18px; position: relative; }
.steps-mini li::before { content: counter(s); font: 700 40px/1 var(--hand); color: var(--violet); display: block; margin-bottom: 6px; }
@media (max-width: 900px) { .steps-mini { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .steps-mini { grid-template-columns: 1fr; } }

.note-quote {
  border-left: 4px solid #5A4FCF; background: rgba(90, 79, 207, .06); padding: 16px 18px; border-radius: 0 12px 12px 0;
  font: 600 26px/1.25 var(--hand); color: #3E3496; margin: 0;
}
.cta-final { text-align: center; }
.cta-final .btns { justify-content: center; }
.cta-final img { width: 150px; margin-bottom: 8px; }

/* ---------- гайд ---------- */
.doc { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 36px; align-items: start; padding-top: 40px; padding-bottom: 64px; }
.toc { position: sticky; top: 84px; font-size: 14.5px; max-height: calc(100vh - 100px); overflow: auto; padding-right: 4px; }
.toc summary { font: 700 26px/1 var(--hand); color: var(--ink); display: block; margin-bottom: 10px; cursor: pointer; list-style: none; }
.toc summary::-webkit-details-marker { display: none; }
@media (max-width: 900px) { .toc summary { margin: 0; } .toc summary::after { content: ' ▾'; font-size: 18px; color: var(--violet); } .toc[open] summary { margin-bottom: 10px; } }
.toc ol { margin: 0; padding: 0 0 0 30px; }
.toc li { margin: 6px 0; color: var(--faint); }
.toc a { text-decoration: none; color: var(--muted); }
.toc a:hover, .toc a.active { color: var(--ink); }
.toc a.active { font-weight: 600; }
@media (max-width: 900px) {
  .doc { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .toc { position: static; max-height: none; background: var(--card); border: 1.5px solid var(--row); border-radius: var(--radius); padding: 16px; }
}
.doc-body > header { margin-bottom: 18px; }
.step { padding: 28px 0 8px; border-top: 1.5px dashed var(--row); }
.step:first-of-type { border-top: 0; }
.step h2 { display: flex; align-items: baseline; gap: 12px; font-size: clamp(32px, 4.6vw, 42px); }
.step h2 .n { font-size: .8em; color: var(--violet); min-width: 1.2em; }
.step h3 { font-size: 26px; margin-top: 18px; }
.doc-body ul, .doc-body ol { padding-left: 22px; }
.doc-body li { margin: 4px 0; }

.vars { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 18px 0 6px; padding: 16px; background: rgba(150, 118, 255, .08); border: 1.5px dashed var(--violet); border-radius: var(--radius); }
.vars p { grid-column: 1 / -1; margin: 0; font-size: 14.5px; color: var(--muted); }
.vars label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: var(--ink); }
.vars input { font: 500 16px var(--mono); padding: 10px 12px; border-radius: 10px; border: 1.5px solid var(--row); background: #fff; color: var(--text); width: 100%; }
.vars input:focus { outline: 2px solid var(--violet); outline-offset: 0; border-color: transparent; }
@media (max-width: 560px) { .vars { grid-template-columns: 1fr; } }
.var { color: #A0307A; font-weight: 600; }

.code { margin: 12px 0 18px; border: 1.5px solid var(--row); border-radius: 12px; background: var(--code-bg); overflow: hidden; }
.code-bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 6px 6px 6px 14px; border-bottom: 1px solid var(--row); background: rgba(35, 64, 184, .04); }
.code-title { font: 600 12px/1 var(--body); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.copy { font: 600 13px/1 var(--body); color: var(--ink); background: var(--paper); border: 1.5px solid var(--row); border-radius: 8px; padding: 8px 12px; min-height: 34px; cursor: pointer; flex: none; }
.copy:hover { border-color: var(--ink); }
.copy.done { background: var(--violet); color: #fff; border-color: var(--violet); }
.code pre { margin: 0; padding: 14px 16px; overflow-x: auto; font: 14.5px/1.6 var(--mono); color: var(--ink-deep); }
.code pre code { background: none; padding: 0; font-size: inherit; word-break: normal; white-space: pre; }

.callout { border: 1.5px solid var(--row); border-left: 5px solid var(--ink); border-radius: 0 12px 12px 0; padding: 14px 16px; background: var(--card); margin: 14px 0 18px; font-size: 15.5px; }
.callout.warn { border-left-color: var(--red); }
.callout.tip { border-left-color: var(--green); }
.callout b:first-child { color: var(--ink); }
.callout.warn b:first-child { color: var(--red); }
.callout.tip b:first-child { color: var(--green); }
.callout p:last-child { margin-bottom: 0; }

.table-wrap { overflow-x: auto; margin: 12px 0 18px; }
table { border-collapse: collapse; width: 100%; font-size: 15px; background: var(--card); }
th, td { text-align: left; padding: 10px 12px; border: 1px solid var(--row); vertical-align: top; }
th { color: var(--ink); background: rgba(35, 64, 184, .05); }

figure { margin: 16px 0 22px; }
figure img { border: 1.5px solid var(--row); border-radius: 12px; display: block; }
figcaption { font-size: 14px; color: var(--faint); margin-top: 6px; }

details.faq { border: 1.5px solid var(--row); border-radius: 12px; background: var(--card); margin: 10px 0; }
details.faq summary { cursor: pointer; padding: 14px 16px; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 10px; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: '+'; font: 700 26px/0.8 var(--hand); color: var(--violet); }
details.faq[open] summary::after { content: '–'; }
details.faq > div { padding: 0 16px 6px; }

/* ---------- приложение ---------- */
.phones { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; justify-items: center; }
@media (max-width: 900px) { .phones { grid-template-columns: 1fr; } }
.phone {
  width: 260px; aspect-ratio: 9 / 17; border: 3px solid var(--ink); border-radius: 38px; padding: 12px;
  background: var(--paper);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 14px 14px; position: relative; overflow: hidden; box-shadow: 6px 6px 0 rgba(35, 64, 184, .18);
  display: flex; flex-direction: column; gap: 10px; font-size: 13px;
}
.phone::before { content: ''; position: absolute; top: 9px; left: 50%; width: 76px; height: 20px; transform: translateX(-50%); background: var(--ink); border-radius: 12px; }
.phone::after { content: ''; position: absolute; top: 0; bottom: 0; right: 18px; width: 1.5px; background: var(--margin); }
.ph-top { margin-top: 28px; display: flex; justify-content: space-between; align-items: baseline; }
.ph-title { font: 700 30px/1 var(--hand); color: var(--ink); }
.ph-status { font-weight: 600; font-size: 12px; color: var(--green); }
.ph-status.off { color: var(--faint); }
.ph-toggle { align-self: center; margin: 10px 0; width: 120px; height: 62px; border-radius: 40px; border: 2.5px solid var(--ink); background: var(--violet-soft); position: relative; }
.ph-toggle::after { content: ''; position: absolute; top: 5px; right: 5px; width: 48px; height: 48px; border-radius: 50%; background: var(--violet); border: 2.5px solid var(--ink); }
.ph-toggle.off { background: var(--paper); }
.ph-toggle.off::after { right: auto; left: 5px; background: var(--paper); }
.ph-card { background: rgba(255, 255, 255, .85); border: 1.5px solid var(--row); border-radius: 14px; padding: 10px 12px; }
.ph-card b { color: var(--ink); display: block; }
.ph-card small { color: var(--faint); }
.ph-card.sel { background: var(--violet-soft); border-color: var(--violet); }
.ph-btn { margin-top: auto; text-align: center; border: 2px solid var(--ink); border-radius: 14px; padding: 10px; font-weight: 600; color: var(--ink); background: var(--paper); }
.ph-empty { text-align: center; color: var(--muted); margin-top: 12px; }
.ph-empty img { width: 88px; display: block; margin: 0 auto 6px; }
.ph-quote { font: 600 18px/1.2 var(--hand); color: #3E3496; border-left: 3px solid #5A4FCF; padding-left: 8px; }
.ph-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.ph-sw { width: 40px; height: 24px; border-radius: 14px; background: var(--violet); border: 2px solid var(--ink); position: relative; flex: none; }
.ph-sw::after { content: ''; position: absolute; top: 2px; right: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; }
.ph-sect { font: 700 22px/1 var(--hand); color: var(--ink); margin-top: 6px; }
.phone-cap { text-align: center; margin-top: 12px; font: 600 24px/1.1 var(--hand); color: var(--ink); }
.phone-cap small { display: block; font: 400 14px var(--body); color: var(--muted); margin-top: 4px; }

.howto { counter-reset: h; list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.howto li { counter-increment: h; display: grid; grid-template-columns: 52px 1fr; gap: 12px; align-items: start; background: var(--card); border: 1.5px solid var(--row); border-radius: var(--radius); padding: 16px; }
.howto li::before { content: counter(h); font: 700 42px/1 var(--hand); color: var(--violet); text-align: center; }
.howto p { margin: 0; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 32px; align-items: center; }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; } .split > img { justify-self: center; width: 180px; } }

/* ---------- тексты (политика, о проекте) ---------- */
.prose { max-width: 760px; padding-top: 40px; padding-bottom: 64px; }
.prose h2 { margin-top: 1.2em; font-size: clamp(32px, 4.6vw, 42px); }
.prose ul { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose .date { color: var(--date, #B8340A); font: 600 22px var(--hand); }
.prose hr { border: 0; border-top: 1.5px dashed var(--row); margin: 36px 0; }
.page-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: end; }
.page-head img { width: 130px; }
@media (max-width: 560px) { .page-head img { width: 90px; } }

/* ---------- подвал ---------- */
.foot { position: relative; z-index: 1; border-top: 1.5px solid var(--row); background: rgba(252, 252, 248, .92); }
.foot-in { max-width: var(--wrap); margin: 0 auto; padding: 28px 16px 36px; display: grid; grid-template-columns: 1fr auto; gap: 16px 32px; }
.foot-brand .hand { font-size: 34px; }
.foot-brand p { color: var(--muted); font-size: 14.5px; margin: 6px 0 0; max-width: 420px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 8px 18px; align-content: start; font-size: 15px; }
.foot-note { grid-column: 1 / -1; font-size: 13px; color: var(--faint); margin: 0; }
@media (max-width: 720px) { .foot-in { grid-template-columns: 1fr; } }

@media (max-width: 560px) {
  body { font-size: 16px; }
  section { padding: 40px 0; }
  .card, .features li { padding: 16px; }
  .code pre { font-size: 13.5px; padding: 12px; }
  body::after { right: 8px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }
@media print { .top, .foot, .copy, .toc, body::after { display: none !important; } body { background: #fff; } }
.hero-art img.art-jump { width: min(300px, 100%); }
@media (max-width: 820px) { .hero-art img.art-jump { width: 170px; } }
figure img.shot { width: 100%; object-fit: cover; object-position: top; }
figure img.shot[height="705"] { aspect-ratio: 1200 / 705; }
figure img.shot[height="660"] { aspect-ratio: 1200 / 660; }
td code { white-space: nowrap; word-break: normal; }
@media (max-width: 560px) { .table-wrap table { min-width: 560px; font-size: 14px; } }