/* Лендинг «Международная школа нейросетей для докторов».
   Стиль по мотивам референса IMG_3124: тёплый светлый фон, почти чёрные блоки, один яркий акцент.
   Акцент — синий из обложки школы. Мобильная вёрстка — основная, десктоп — расширение. */

:root {
  --bg: #EDEAE5;
  --bg-2: #E5E1DA;
  --card: #F7F5F1;
  --line: #D6D0C7;
  --line-2: #C3BCB1;
  --ink: #141312;
  --ink-2: #2C2A28;
  --muted: #65605A;
  --dark: #181716;
  --dark-2: #232120;
  --on-dark: #F4F2EF;
  --on-dark-2: #B7B2AB;
  --dark-line: rgba(255, 255, 255, .2);
  --accent: #1D62E4;
  --accent-ink: #1955CB;
  --accent-on-dark: #7BA3FF;
  --accent-soft: rgba(29, 98, 228, .1);
  --radius: 18px;
  --pad: 20px;
  --max: 1200px;
  --sec: 72px;
  --f: 'Geologica', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --h1: min(calc((100vw - 2 * var(--pad)) / 7.6), 74px);
  --h2: clamp(29px, 7.6vw, 40px);
  --svh: 1vh;
}
@supports (height: 1svh) { :root { --svh: 1svh; } }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-2);
  font: 400 17px/1.45 var(--f);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
b, strong { font-weight: 600; color: var(--ink); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.dark :focus-visible { outline-color: var(--accent-on-dark); }

.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 999px; text-decoration: none; font-size: 14px; }
.skip:focus { top: 12px; }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- каркас ---------- */
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.sec { position: relative; padding: var(--sec) 0; }
.sec.light {
  background:
    radial-gradient(90% 60% at 100% 0%, rgba(255, 255, 255, .62), rgba(255, 255, 255, 0) 70%),
    var(--bg);
}
.sec.dark { background: var(--dark); color: var(--on-dark); }
.sec.dark b, .sec.dark strong { color: #fff; }
.sec.tight-top { padding-top: 8px; }

/* ---------- типографика ---------- */
.lbl {
  display: inline-block;
  font: 600 11.5px/1.35 var(--f);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink);
}
.dark .lbl { color: var(--on-dark); }
.lbl .ac { color: var(--accent); }
.dark .lbl .ac { color: var(--accent-on-dark); }
.h1 {
  font: 800 var(--h1)/.9 var(--f);
  letter-spacing: -.035em;
  text-transform: uppercase;
  color: var(--ink);
}
.h1 .ln { display: block; }
.h1 .ac { color: var(--accent); }
.h2 {
  font: 700 var(--h2)/1.03 var(--f);
  letter-spacing: -.03em;
  color: var(--ink);
  text-wrap: balance;
}
.h2 .ac { display: block; color: var(--accent); }
.dark .h2 { color: #fff; }
.dark .h2 .ac { color: var(--accent-on-dark); }
.h2 + .lead, .h2 + p { margin-top: 18px; }
.lead + .lead { margin-top: 12px; }
.lead { font-size: 17px; line-height: 1.45; color: var(--ink-2); max-width: 36em; }
.dark .lead { color: var(--on-dark-2); }
.dark .lead b { color: #fff; }
.muted { color: var(--muted); }
.dark .muted { color: var(--on-dark-2); }
.small { font-size: 14.5px; line-height: 1.45; }
.up { text-transform: uppercase; letter-spacing: -.005em; }
.sec-head { margin-bottom: 34px; }
.sec-head .lbl { margin-bottom: 14px; }

/* ---------- кнопки и плашки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 32px;
  border: 0;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font: 600 12.5px/1.2 var(--f);
  letter-spacing: .14em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .25s var(--ease), color .25s var(--ease), transform .2s var(--ease), box-shadow .25s var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.btn:hover { background: var(--accent); box-shadow: 0 10px 26px -12px rgba(29, 98, 228, .7); }
.btn:active { transform: scale(.98); }
.btn--light { background: #fff; color: var(--ink); }
.btn--light:hover { background: var(--accent); color: #fff; }
.btn .arr { width: 16px; height: 16px; flex: none; transition: transform .25s var(--ease); }
.btn:hover .arr { transform: translateX(3px); }
.btn--sm { min-height: 40px; padding: 0 18px; font-size: 11px; letter-spacing: .12em; }

.price-pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font: 500 15px/1 var(--f);
  color: var(--ink);
  white-space: nowrap;
}
.dark .price-pill { border-color: rgba(255, 255, 255, .75); color: #fff; }
.buy { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; margin-top: 26px; }
.buy-note { font-size: 13px; color: var(--muted); }
.dark .buy-note { color: var(--on-dark-2); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 0 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  font: 500 12.5px/1 var(--f);
  color: var(--ink-2);
  white-space: nowrap;
  background: rgba(255, 255, 255, .35);
}
.tag--ac { border-color: transparent; background: var(--accent-soft); color: var(--accent-ink); }
.dark .tag { border-color: var(--dark-line); color: var(--on-dark); background: transparent; }

.ico { width: 26px; height: 26px; flex: none; stroke: var(--accent); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.dark .ico { stroke: var(--accent-on-dark); }

/* ---------- шапка ---------- */
.top {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transform: translateY(-110%);
  transition: transform .4s var(--ease);
  background: rgba(237, 234, 229, .86);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid rgba(20, 19, 18, .08);
}
.top.on { transform: none; }
.top-in { display: flex; align-items: center; gap: 16px; height: 60px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font: 600 13.5px/1.15 var(--f); letter-spacing: -.01em; }
.logo svg { width: 30px; height: 30px; flex: none; }
.logo small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }
.top-nav { display: none; margin-left: auto; gap: 26px; }
.top-nav a { text-decoration: none; font-size: 14px; color: var(--ink-2); }
.top-nav a:hover { color: var(--accent); }
.top .btn { margin-left: auto; }

/* ---------- 1. первый экран ---------- */
.hero { padding-top: 34px; padding-bottom: 0; overflow: hidden; }
.hero-grid { position: relative; z-index: 1; }
.hero-mark { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 30px; }
.hero-mark .logo small { max-width: 14em; }
.hero-kick { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 16px; }
/* размер по самой длинной строке — «работоспособнее» (--h1r = ширина строки в em) */
.hero-head { --h1r: 10.8; }
.hero-head .h1 { font-size: min(calc((100vw - 2 * var(--pad)) / var(--h1r)), 104px); }
@supports (container-type: inline-size) {
  .hero-head { container-type: inline-size; }
  .hero-head .h1 { font-size: min(calc(100cqw / var(--h1r)), 112px); }
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 15px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font: 400 13px/1 var(--f);
  letter-spacing: .1em;
  color: var(--ink);
}
.hero .lead { margin-top: 22px; font-size: 18px; color: var(--ink-2); }
.feats { margin-top: 28px; }
.feats li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 18px;
  align-items: center;
  padding: 17px 0;
  border-top: 1px solid var(--line);
}
.feats li:last-child { border-bottom: 1px solid var(--line); }
.feats b { display: block; font-size: 17.5px; line-height: 1.25; }
.feats span { display: block; color: var(--muted); font-size: 16px; line-height: 1.3; margin-top: 2px; }
.hero-note { margin-top: 22px; color: var(--ink-2); font-size: 16px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  transition: border-color .2s, color .2s, background-color .2s;
}
.chip svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; flex: none; }
.chip:hover { border-color: var(--accent); color: var(--accent-ink); background: #fff; }

/* строка «Автор реального кейса на 400К в месяц „Мамин помощник“ (открыть)» */
.hero-case {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
  padding: 12px 18px 12px 12px;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  max-width: 430px;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
}
.hero-case:hover { border-color: var(--accent); box-shadow: 0 16px 30px -22px rgba(20, 19, 18, .5); transform: translateY(-2px); }
.hero-case-i { width: 48px; height: 48px; border-radius: 50%; flex: none; }
.hero-case b { display: block; font-size: 16px; line-height: 1.25; }
.hero-case > span > span { display: block; margin-top: 2px; font-size: 15px; color: var(--ink-2); }
.hero-case u { color: var(--accent-ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }

/* портрет на фоне логотипа школы */
.hero-photo { position: relative; z-index: 1; margin: 34px 0 0; padding-bottom: 8px; }
.hero-logo {
  width: 100%;
  aspect-ratio: 1024 / 941;
  border-radius: 22px;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 30px 60px -44px rgba(20, 19, 18, .55);
}
.hero-logo img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo .hero-me {
  position: relative;
  width: 74%;
  margin: -50% -4% 0 auto;
  -webkit-mask-image: linear-gradient(to bottom, #000 62%, transparent 96%), linear-gradient(to right, transparent 0, #000 10%, #000 92%, transparent 100%);
  -webkit-mask-composite: source-in;
  mask-image: linear-gradient(to bottom, #000 62%, transparent 96%), linear-gradient(to right, transparent 0, #000 10%, #000 92%, transparent 100%);
  mask-composite: intersect;
}
.hero-cap {
  position: absolute;
  left: 0;
  bottom: 46px;
  z-index: 2;
  padding: 12px 16px 13px;
  border-radius: 14px;
  background: rgba(247, 245, 241, .9);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(20, 19, 18, .08);
  max-width: 270px;
}
.hero-cap b { display: block; font-size: 15px; }
.hero-cap span { display: block; font-size: 13px; color: var(--muted); line-height: 1.35; margin-top: 2px; }
.ecg { position: absolute; left: 0; right: 0; bottom: 18px; z-index: 0; width: 100%; height: 118px; pointer-events: none; }
.ecg path, .ecg line { fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.ecg circle { fill: var(--accent); }
.ecg .trace { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 2.4s var(--ease) .3s forwards; }
.ecg .net line { opacity: 0; animation: fade .6s ease forwards; }
.ecg .net circle { opacity: 0; transform-box: fill-box; transform-origin: center; animation: pop .5s var(--ease) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade { to { opacity: .9; } }
@keyframes pop { from { opacity: 0; transform: scale(.2); } to { opacity: 1; transform: none; } }

/* ---------- 2. мысли ---------- */
.quotes { margin-top: 26px; }
.quotes li { padding: 15px 0; border-top: 1px solid var(--line); }
.quotes li:last-child { border-bottom: 1px solid var(--line); }
.quotes q { display: block; quotes: none; font-size: 16.5px; line-height: 1.35; color: var(--ink); }
.quotes .where { display: block; margin-top: 6px; font-size: 13px; color: var(--accent-ink); }
.quotes .where a { color: inherit; text-underline-offset: 2px; }
.poll {
  margin-top: 26px;
  padding: 22px 22px 20px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
}
.poll-q { font-weight: 600; color: var(--ink); font-size: 18px; }
.poll-a { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.poll-a button {
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: transparent;
  cursor: pointer;
  font-size: 15px;
  transition: background-color .2s, color .2s;
}
.poll-a button:hover { background: var(--ink); color: #fff; }
.poll-a button[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.poll-r { margin-top: 14px; font-size: 15.5px; color: var(--ink-2); }
.poll-r[hidden] { display: none; }
.poll-r a { color: var(--accent-ink); }

/* ---------- 3. если ничего не менять ---------- */
.stat {
  margin-top: 28px;
  padding: 26px 24px 22px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
}
.stat-n { font: 800 64px/.9 var(--f); letter-spacing: -.04em; color: var(--accent); }
.stat-t { margin-top: 12px; font-size: 17px; line-height: 1.42; color: var(--ink); }
.stat-s { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--line); font-size: 13px; line-height: 1.4; color: var(--muted); }
.stat-s a { color: inherit; text-underline-offset: 2px; }
.bridge { margin-top: 56px; }
.worst-head { margin-bottom: 18px; }
.worst-head .h2 { max-width: 17em; }

/* ---------- 4. поворот ---------- */
.turn-head { margin-bottom: 20px; }
.flow { margin: 38px 0 6px; }
.flow-q { font: 700 clamp(27px, 7vw, 46px)/1.05 var(--f); letter-spacing: -.03em; color: #fff; }
.flow-arr { display: block; width: 24px; height: 74px; margin: 14px 0 14px 40px; overflow: visible; }
.flow-arr path { fill: none; stroke: var(--accent-on-dark); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.flow-arr .shaft { stroke-dasharray: 64; stroke-dashoffset: 64; transition: stroke-dashoffset 1s var(--ease) .2s; }
.flow-arr .head { opacity: 0; transition: opacity .3s ease 1.05s; }
.in .flow-arr .shaft, .no-io .flow-arr .shaft { stroke-dashoffset: 0; }
.in .flow-arr .head, .no-io .flow-arr .head { opacity: 1; }
.turn-p2 { margin-top: 30px; }
.prompts { display: grid; gap: 12px; margin-top: 34px; }
.pr {
  padding: 20px 20px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--dark-line);
}
.pr-l { display: flex; align-items: center; gap: 10px; font: 600 11.5px/1.2 var(--f); letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-2); }
.pr-l svg { width: 20px; height: 20px; flex: none; fill: none; stroke-width: 2; stroke-linecap: round; }
.pr--no .pr-l svg { stroke: #FF7A6B; }
.pr--yes { border-color: rgba(123, 163, 255, .6); background: rgba(29, 98, 228, .12); }
.pr--yes .pr-l svg { stroke: var(--accent-on-dark); }
.pr-t { margin-top: 12px; font-size: 17px; line-height: 1.4; color: #fff; }
.pr--no .pr-t { color: var(--on-dark-2); text-decoration: line-through; text-decoration-color: rgba(255, 122, 107, .8); text-decoration-thickness: 1.5px; }
.pr-foot { margin-top: 12px; font-size: 13px; color: var(--on-dark-2); }
.bq { margin: 44px 0 0; padding: 0 0 0 20px; border-left: 2px solid var(--accent-on-dark); }
.bq p { font: 500 19px/1.4 var(--f); color: #fff; letter-spacing: -.01em; }
.bq footer { margin-top: 12px; font-size: 13.5px; color: var(--on-dark-2); }

/* ---------- 5. доказательства ---------- */
.case {
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  overflow: hidden;
}
.case-txt { padding: 26px 24px 8px; }
.case-title { margin-top: 14px; font: 800 30px/1 var(--f); letter-spacing: -.03em; text-transform: uppercase; color: var(--ink); }
.case-txt > p { margin-top: 14px; font-size: 16.5px; }
.ticks { margin-top: 18px; }
.ticks li { position: relative; padding: 10px 0 10px 30px; border-top: 1px solid var(--line); font-size: 15.5px; line-height: 1.35; color: var(--ink); }
.ticks li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 13px;
  width: 16px;
  height: 16px;
  background: no-repeat center/16px 16px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231D62E4' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 12.5l5 5L20 6.5'/%3E%3C/svg%3E");
}
.case-link { display: flex; flex-wrap: wrap; gap: 10px; padding: 18px 24px 24px; }
.case-shots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 22px 18px 0;
  background: linear-gradient(180deg, rgba(29, 98, 228, .06), rgba(29, 98, 228, .14));
  border-top: 1px solid var(--line);
}
.phone {
  position: relative;
  border-radius: 22px 22px 0 0;
  border: 5px solid #141312;
  border-bottom: 0;
  background: #141312;
  overflow: hidden;
  aspect-ratio: 9 / 14.5;
}
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; border-radius: 17px 17px 0 0; }
.case-matrix { grid-column: 1 / -1; margin: 0 -18px; border-top: 1px solid rgba(20, 19, 18, .08); background: #F0EDF9; }
.case-matrix img { width: 100%; }

.works-hint { margin-top: 22px; font-size: 13.5px; color: var(--muted); }
.works {
  display: flex;
  gap: 12px;
  margin: 10px calc(var(--pad) * -1) 0;
  padding: 2px var(--pad) 10px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: var(--pad);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.works::-webkit-scrollbar { display: none; }
.works .work { flex: 0 0 64%; scroll-snap-align: start; }
.work {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  background: var(--card);
  border: 1px solid var(--line);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
a.work:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 18px 30px -22px rgba(20, 19, 18, .45); }
.work-img { aspect-ratio: 4 / 5; overflow: hidden; background: #E9E5DE; border-bottom: 1px solid var(--line); }
.work-img img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .6s var(--ease); }
.work-img img[src*="report-"] { object-position: left top; }
a.work:hover .work-img img { transform: scale(1.03); }
.work-txt { padding: 12px 13px 14px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.work-t { font-weight: 600; font-size: 15px; line-height: 1.2; color: var(--ink); }
.work-d { font-size: 13px; line-height: 1.35; color: var(--muted); }
.work-m { margin-top: auto; padding-top: 8px; display: flex; align-items: center; justify-content: space-between; gap: 6px; font-size: 12.5px; color: var(--accent-ink); }
.work-m svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; flex: none; }
.nums { display: grid; grid-template-columns: 1fr 1fr; margin-top: 30px; border-top: 1px solid var(--line); }
.num { padding: 18px 12px 18px 0; border-bottom: 1px solid var(--line); }
.num b { display: block; font: 800 34px/1 var(--f); letter-spacing: -.035em; color: var(--ink); }
.num span { display: block; margin-top: 6px; font-size: 14px; line-height: 1.3; color: var(--muted); }

/* ---------- 6. урок изнутри ---------- */
.steps7 { counter-reset: s; display: grid; gap: 0; margin-top: 6px; }
.steps7 li { counter-increment: s; display: grid; grid-template-columns: 34px 1fr; gap: 12px; align-items: baseline; padding: 12px 0; border-top: 1px solid var(--line); font-size: 16px; color: var(--ink); }
.steps7 li:last-child { border-bottom: 1px solid var(--line); }
.steps7 li::before { content: counter(s, decimal-leading-zero); font: 600 13px/1 var(--f); letter-spacing: .06em; color: var(--accent-ink); }
.term {
  margin-top: 26px;
  border-radius: var(--radius);
  background: var(--dark);
  color: var(--on-dark);
  overflow: hidden;
  box-shadow: 0 30px 60px -40px rgba(20, 19, 18, .6);
}
.term-bar { display: flex; align-items: center; gap: 8px; padding: 12px 14px; border-bottom: 1px solid var(--dark-line); font-size: 12.5px; color: var(--on-dark-2); }
.term-bar i { width: 10px; height: 10px; border-radius: 50%; background: #3A3836; flex: none; }
.term-bar span { margin-left: 6px; }
.term-copy {
  margin-left: auto;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--dark-line);
  background: transparent;
  color: var(--on-dark);
  font-size: 12.5px;
  cursor: pointer;
  transition: background-color .2s, border-color .2s;
}
.term-copy:hover { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .45); }
.term-body { padding: 18px 18px 22px; font: 400 14.5px/1.6 ui-monospace, 'SF Mono', Consolas, 'Liberation Mono', monospace; color: #E9E6E1; white-space: pre-wrap; word-break: break-word; min-height: 9em; }
.term-body .cur { display: inline-block; width: .55em; height: 1.1em; vertical-align: -.18em; background: var(--accent-on-dark); animation: blink 1s steps(1) infinite; }
.term-body mark { background: rgba(123, 163, 255, .2); color: #fff; border-radius: 3px; padding: 0 2px; }
@keyframes blink { 50% { opacity: 0; } }
.wait { display: flex; align-items: center; gap: 14px; margin-top: 26px; }
.wait-n { font: 800 54px/.9 var(--f); letter-spacing: -.04em; color: var(--accent); white-space: nowrap; }
.wait-t { font: 500 17px/1.3 var(--f); color: var(--ink); }
.wait-t small { display: block; font-size: 13px; font-weight: 400; color: var(--muted); margin-top: 3px; }
.sheets { position: relative; margin-top: 26px; padding: 0 0 28px 0; }
.sheet { border-radius: 10px; overflow: hidden; background: #fff; box-shadow: 0 24px 44px -28px rgba(20, 19, 18, .55), 0 0 0 1px rgba(20, 19, 18, .06); }
.sheet--back { position: absolute; right: 0; top: 0; width: 82%; transform: rotate(3deg) translate(2%, -4%); opacity: .95; }
.sheet--front { position: relative; width: 88%; transform: rotate(-1.5deg); }
.sheet-cap { margin-top: 6px; font-size: 13px; color: var(--muted); }

/* ---------- программа ---------- */
.filters { display: flex; gap: 8px; overflow-x: auto; padding: 2px var(--pad) 6px; margin: 0 calc(var(--pad) * -1); scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.filters::-webkit-scrollbar { display: none; }
.filters button {
  flex: none;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--ink-2);
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .2s, color .2s, border-color .2s;
}
.filters button span { color: var(--muted); margin-left: 4px; }
.filters button:hover { border-color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.filters button[aria-pressed="true"] span { color: rgba(255, 255, 255, .6); }
.prog-tools { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 14px; font-size: 14px; color: var(--muted); }
.linkbtn { border: 0; background: none; padding: 6px 0; color: var(--accent-ink); font-size: 14px; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.lessons { margin-top: 12px; border-top: 1px solid var(--line); }
.lsn { border-bottom: 1px solid var(--line); }
.lsn[hidden] { display: none; }
.lsn > summary {
  list-style: none;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto 30px;
  grid-template-areas: "n main dur x";
  gap: 0 10px;
  align-items: center;
  padding: 14px 0 13px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.lsn > summary::-webkit-details-marker { display: none; }
.lsn-n { grid-area: n; font: 700 15px/1.6 var(--f); letter-spacing: .02em; color: var(--accent-ink); font-variant-numeric: tabular-nums; }
.lsn-main { grid-area: main; min-width: 0; }
.lsn-d { grid-area: dur; justify-self: end; margin-top: 0 !important; white-space: nowrap; }
.lsn-n { align-self: center; line-height: 1.25; }
.lsn-x { grid-area: x; }
.lsn-t { display: block; font: 600 17.5px/1.25 var(--f); color: var(--ink); letter-spacing: -.01em; }
.lsn-r { display: block; margin-top: 5px; font-size: 14.5px; line-height: 1.4; color: var(--muted); }
.lsn-d { display: inline-flex; margin-top: 8px; font-size: 12.5px; color: var(--ink-2); border: 1px solid var(--line-2); border-radius: 999px; padding: 3px 10px; }
.lsn-x { position: relative; width: 28px; height: 28px; margin-top: 1px; border-radius: 50%; border: 1px solid var(--line-2); transition: background-color .2s, border-color .2s, transform .35s var(--ease); }
.lsn-x::before, .lsn-x::after { content: ""; position: absolute; left: 50%; top: 50%; width: 11px; height: 1.5px; background: var(--ink); transform: translate(-50%, -50%); }
.lsn-x::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .35s var(--ease); }
.lsn[open] .lsn-x { background: var(--ink); border-color: var(--ink); }
.lsn[open] .lsn-x::before, .lsn[open] .lsn-x::after { background: #fff; }
.lsn[open] .lsn-x::after { transform: translate(-50%, -50%) rotate(0deg); }
.lsn > summary:hover .lsn-t { color: var(--accent-ink); }
.lsn-body { padding: 0 0 24px 54px; animation: open .35s var(--ease); }
.lsn-lead { margin: -4px 0 16px; font-size: 15.5px; line-height: 1.42; color: var(--muted); }
@keyframes open { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.lsn-h { font: 600 11.5px/1.2 var(--f); letter-spacing: .16em; text-transform: uppercase; color: var(--ink); margin-bottom: 8px; }
.lsn-in li { position: relative; padding: 7px 0 7px 18px; font-size: 15.5px; line-height: 1.42; color: var(--ink-2); }
.lsn-in li::before { content: ""; position: absolute; left: 2px; top: 15px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.lsn-res { margin-top: 14px; padding: 14px 16px; border-radius: 12px; background: var(--card); border: 1px solid var(--line); font-size: 15px; line-height: 1.42; color: var(--ink); }
.lsn-res b { display: block; font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 4px; color: var(--accent-ink); }
.lsn-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.lsn-live { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 14.5px; color: var(--accent-ink); text-underline-offset: 3px; }
.lsn-live svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; }
.ideas { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.ideas li { padding: 6px 11px; border-radius: 999px; background: var(--card); border: 1px solid var(--line); font-size: 13.5px; color: var(--ink-2); }
.ideas li::before { display: none; }
.prog-sum { margin-top: 22px; font-size: 14px; color: var(--muted); }

/* ---------- состав (тёмный) ---------- */
.incl li { padding: 22px 0; border-top: 1px solid var(--dark-line); }
.incl li:last-child { border-bottom: 1px solid var(--dark-line); }
.incl h3 { font: 700 17px/1.25 var(--f); letter-spacing: .01em; text-transform: uppercase; color: #fff; }
.incl p { margin-top: 8px; font-size: 16px; color: var(--on-dark-2); }

/* ---------- навыки ---------- */
.skills li { display: grid; grid-template-columns: 52px 1fr; gap: 16px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); }
.skills li:last-child { border-bottom: 1px solid var(--line); }
.sk-i { width: 52px; height: 52px; display: grid; place-items: center; border: 1.5px solid var(--accent); border-radius: 4px; background: rgba(255, 255, 255, .45); }
.sk-i svg { width: 30px; height: 30px; stroke: var(--accent); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.skills b { display: block; font: 700 16px/1.25 var(--f); text-transform: uppercase; letter-spacing: .005em; }
.skills span { display: block; margin-top: 3px; font-size: 15px; color: var(--muted); }
.skills-note { margin-top: 22px; font-size: 15px; color: var(--muted); max-width: 34em; }

/* ---------- 7. первый шаг ---------- */
.path { margin-top: 28px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); padding: 8px 22px 20px; }
.path li { display: grid; grid-template-columns: 70px 1fr auto; gap: 10px; align-items: baseline; padding: 15px 0; border-bottom: 1px solid var(--line); }
.path .pn { font: 600 12px/1 var(--f); letter-spacing: .14em; text-transform: uppercase; color: var(--accent-ink); }
.path .pt { font-size: 16.5px; color: var(--ink); line-height: 1.3; }
.path .pd { font-size: 14px; color: var(--muted); white-space: nowrap; }
.path-total { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding-top: 16px; }
.path-total span { font-size: 15px; color: var(--ink-2); }
.path-total b { font: 800 30px/1 var(--f); letter-spacing: -.03em; color: var(--accent); }
.need { margin-top: 18px; padding: 20px 22px; border-radius: var(--radius); border: 1px dashed var(--line-2); }
.need h3 { font: 600 11.5px/1.2 var(--f); letter-spacing: .16em; text-transform: uppercase; color: var(--ink); }
.need li { position: relative; padding: 9px 0 0 18px; font-size: 15.5px; line-height: 1.4; }
.need li::before { content: ""; position: absolute; left: 2px; top: 18px; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- 8. три «да» ---------- */
.yes { display: grid; gap: 14px; margin-top: 30px; }
.yes li { min-height: 190px; display: flex; flex-direction: column; justify-content: space-between; gap: 18px; padding: 26px 24px 22px; border: 1px solid rgba(255, 255, 255, .55); border-radius: var(--radius); }
.yes h3 { font: 600 24px/1.15 var(--f); letter-spacing: -.02em; color: #fff; }
.yes p { font-size: 15px; line-height: 1.45; color: var(--on-dark-2); }
.yes .yn { display: inline-block; font: 600 11.5px/1 var(--f); letter-spacing: .16em; text-transform: uppercase; color: var(--accent-on-dark); margin-bottom: 12px; }

/* ---------- вам сюда, если ---------- */
.cards { display: grid; gap: 14px; margin-top: 30px; }
.card { padding: 28px 26px 34px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); min-height: 210px; box-shadow: 0 1px 0 rgba(255, 255, 255, .8) inset; }
.card h3 { font: 700 24px/1.12 var(--f); letter-spacing: -.025em; color: var(--ink); }
.card p { margin-top: 14px; font-size: 16px; line-height: 1.45; color: var(--ink-2); }

/* ---------- 8. сомнения ---------- */
.risks { margin-top: 26px; border-top: 1px solid var(--line); }
.risk { padding: 22px 0; border-bottom: 1px solid var(--line); }
.risk q { display: block; quotes: none; font: 600 19px/1.3 var(--f); letter-spacing: -.015em; color: var(--ink); }
.risk p { margin-top: 10px; font-size: 16px; line-height: 1.45; }
.risk .src { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px; font-size: 12.5px; color: var(--muted); }
.risk .src svg { width: 14px; height: 14px; stroke: var(--accent); fill: none; stroke-width: 2; }

/* ---------- 9. оффер ---------- */
.offer { text-align: center; }
.offer .lbl { line-height: 1.6; }
.offer-title { margin: 12px auto 0; max-width: 11em; font: 800 min(calc((100vw - 2 * var(--pad)) / 10.8), 84px)/.92 var(--f); letter-spacing: -.035em; text-transform: uppercase; color: #fff; text-wrap: balance; }
.offer-title .ac { color: var(--accent-on-dark); }
.quotes-lbl { display: block; margin-bottom: 4px; color: var(--muted); }
.offer-comp { margin: 22px auto 0; max-width: 30em; font-size: 17px; line-height: 1.5; color: var(--on-dark); }
.offer-comp .plus { color: var(--accent-on-dark); }
.offer-acc { margin-top: 26px; font-weight: 600; color: #fff; font-size: 16px; }
.offer-small { margin-top: 6px; font-size: 14px; color: var(--on-dark-2); }
.offer-price { margin-top: 22px; font: 800 clamp(44px, 12vw, 84px)/1 var(--f); letter-spacing: -.04em; color: #fff; }
.offer-price.is-empty { font: 500 18px/1.4 var(--f); letter-spacing: 0; color: var(--on-dark-2); }
.offer .btn { margin-top: 24px; }
.offer-pay { margin-top: 16px; font-size: 13px; color: var(--on-dark-2); }

/* ---------- FAQ ---------- */
.faq { margin-top: 24px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; list-style: none; padding: 19px 48px 19px 0; font: 500 16.5px/1.35 var(--f); color: var(--ink); cursor: pointer; -webkit-tap-highlight-color: transparent; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before, .faq summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 18px; height: 1.5px; background: var(--ink); transition: transform .35s var(--ease); }
.faq summary::after { transform: rotate(90deg); }
.faq details[open] summary::before { transform: rotate(45deg); }
.faq details[open] summary::after { transform: rotate(135deg); }
.faq summary:hover { color: var(--accent-ink); }
.faq .ans { padding: 0 32px 20px 0; font-size: 15.5px; line-height: 1.5; color: var(--muted); animation: open .35s var(--ease); }

/* ---------- финал ---------- */
.final .h2 { font-size: clamp(34px, 9.2vw, 76px); }
.final .lead-b { margin-top: 22px; font: 600 19px/1.35 var(--f); color: var(--ink); max-width: 26em; }
.final .lead { margin-top: 12px; }
.final .go { margin-top: 18px; font-weight: 600; color: var(--ink-2); }

/* ---------- подвал ---------- */
.foot { background: var(--dark-2); color: var(--on-dark-2); padding: 40px 0 46px; font-size: 13px; line-height: 1.55; }
.foot b { color: #fff; font-weight: 600; }
.foot-docs { display: flex; flex-direction: column; gap: 6px; margin-top: 18px; }
.foot-docs a, .foot-docs span { color: #A6B6FF; text-decoration: none; }
.foot-docs a:hover { text-decoration: underline; }
.foot-docs span { color: var(--on-dark-2); }
.foot-legal { margin-top: 18px; max-width: 46em; }
.foot-legal p + p { margin-top: 8px; }

/* ---------- появление ---------- */
.js [data-r] { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: calc(var(--d, 0) * 70ms); }
.js [data-r].in { opacity: 1; transform: none; }
.hero .rise { display: block; overflow: hidden; }
.hero .rise > span { display: block; animation: rise .9s var(--ease) both; animation-delay: calc(var(--d, 0) * 90ms + 100ms); }
@keyframes rise { from { transform: translateY(105%); } to { transform: none; } }

/* ---------- режим «покажи шаги» (?steps) ---------- */
.show-steps [data-step]::before {
  content: "ШАГ " attr(data-step) " · " attr(data-step-name) "\A" "доказательство: " attr(data-step-proof);
  white-space: pre-wrap;
  position: absolute;
  z-index: 40;
  top: 10px;
  right: 10px;
  max-width: 300px;
  padding: 8px 12px;
  border-radius: 10px;
  background: #FFE45E;
  color: #141312;
  font: 600 12px/1.35 var(--f);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .18);
}

/* ================= планшет ================= */
@media (min-width: 600px) {
  :root { --pad: 32px; --sec: 96px; --h2: clamp(34px, 6vw, 50px); }
  .works-hint { display: none; }
  .works { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 14px 0 0; padding: 0; overflow: visible; }
  .cards, .yes { grid-template-columns: 1fr 1fr; }
  .prompts { grid-template-columns: 1fr 1fr; }
  .nums { grid-template-columns: repeat(4, 1fr); }
  .num { padding-right: 18px; }
  .hero-photo { margin-left: 0; margin-right: 0; }
  .lsn > summary { grid-template-columns: 56px minmax(0, 1fr) auto 30px; grid-template-areas: "n main dur x"; align-items: center; }
  .lsn-d { margin-top: 0; justify-self: end; }
  .lsn-n { align-self: start; }
  .lsn-body { padding-left: 68px; padding-right: 40px; }
}

/* ================= десктоп ================= */
@media (min-width: 1024px) {
  :root { --pad: 40px; --sec: 128px; --h2: clamp(44px, 4.3vw, 60px); --h1: clamp(76px, 6.4vw, 96px); }
  body { font-size: 18px; }
  .lead { font-size: 19px; }
  .top-nav { display: flex; }
  .top .btn { margin-left: 8px; }
  .hero { padding-top: 36px; }
  .hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, .74fr);
    grid-template-areas: "head head" "text photo";
    column-gap: 56px;
  }
  .hero-head { grid-area: head; }
  .hero-text { grid-area: text; display: flex; flex-direction: column; align-items: flex-start; padding-bottom: 96px; }
  .hero-text .lead { order: 0; margin-top: 30px; font-size: 20px; max-width: 30em; }
  .hero-text .hero-case { order: 1; }
  .hero-text .buy, #hero-end { order: 2; }
  .hero-text .feats { order: 3; align-self: stretch; margin-top: 38px; }
  .feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 26px; }
  .feats li, .feats li:last-child { border-bottom: 1px solid var(--line); grid-template-columns: 1fr; gap: 12px; align-content: start; }
  .hero-photo { grid-area: photo; margin: 34px 0 0; align-self: start; }
  .hero-cap { left: 0; bottom: 56px; }
  .ecg { bottom: 0; height: 150px; z-index: 0; }
  .split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 72px; align-items: start; }
  .split > .sec-head { position: sticky; top: 110px; margin-bottom: 0; }
  #thoughts .split { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
  .worst-head { margin-bottom: 40px; }
  .worst-row { align-items: start; }
  .quotes, .poll, .stat { margin-top: 0; }
  .poll { margin-top: 26px; }
  .bridge { margin-top: 110px; }
  .turn-head { margin-bottom: 44px; }
  .turn-head .h2 { max-width: 15em; }
  .turn { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 80px; align-items: start; }
  .turn .lead { margin-top: 0; }
  .turn .prompts { grid-template-columns: 1fr; margin-top: 0; }
  .turn .bq { margin-top: 30px; }
  .case { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }
  .case-txt { padding: 40px 40px 10px; }
  .case-link { padding: 22px 40px 40px; }
  .case-left { display: flex; flex-direction: column; }
  .case-shots { border-top: 0; border-left: 1px solid var(--line); padding: 34px 34px 0; grid-template-columns: 1fr 1fr; align-content: end; }
  .case-matrix { margin: 0 -34px; }
  .works { grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 16px; }
  .inside { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 72px; align-items: start; }
  .inside .term { margin-top: 0; }
  .prog { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 64px; align-items: start; }
  .prog .sec-head { position: sticky; top: 110px; }
  .filters { flex-wrap: wrap; overflow: visible; margin: 22px 0 0; padding: 0; }
  .incl { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
  .incl li:nth-last-child(2) { border-bottom: 1px solid var(--dark-line); }
  .skills { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0 20px; }
  .skills li, .skills li:last-child { grid-template-columns: 1fr; gap: 18px; align-content: start; border-bottom: 1px solid var(--line); padding: 26px 0 28px; }
  .yes, .cards { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .cards { grid-template-columns: repeat(4, 1fr); }
  .yes li { min-height: 250px; padding: 32px 30px 28px; }
  .card { min-height: 250px; }
  .risks { display: grid; grid-template-columns: 1fr 1fr; gap: 0 56px; border-top: 0; }
  .risk { border-top: 1px solid var(--line); border-bottom: 0; }
  .risks .risk:nth-last-child(-n+2) { border-bottom: 1px solid var(--line); }
  .faq-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: 72px; align-items: start; }
  .faq { margin-top: 0; }
  .final-in { max-width: 920px; }
  .foot-in { display: grid; grid-template-columns: 1fr 1fr 1.4fr; gap: 40px; }
  .foot-docs, .foot-legal { margin-top: 0; }
}

@media (min-width: 1280px) {
  :root { --pad: 48px; }
}

/* ---------- меньше движения ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; }
  .js [data-r] { opacity: 1; transform: none; }
  .ecg .trace { stroke-dashoffset: 0; }
  .ecg .net line, .ecg .net circle { opacity: 1; }
}

@media print {
  .top, .ecg, .poll, .filters, .prog-tools, .term-copy { display: none !important; }
  .sec.dark { background: #fff; color: #000; }
  .lsn-body { display: block !important; }
}