:root{
  --brand: rgb(20,180,100);
  --text: #0a0a0a;
  --bg: #fafafa;
  --muted: #5b5b5b;
  --card: #f4f7f5;
  --ring: rgba(20,180,100,.25);
  --shadow: 0 10px 30px -10px rgba(0,0,0,.2);
  --header-height: 72px;
}

*{box-sizing: border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: "Manrope", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  text-rendering:optimizeLegibility;
  padding-top: var(--header-height);
  overflow-x: hidden; 
}

img{max-width:100%;height:auto;display:block}

/* Progress bar */
#progress{
  position:fixed;
  top:0;left:0;
  height:3px;
  width:0%;
  background:linear-gradient(90deg, var(--brand), #7ee2b0);
  z-index:999;
  transform-origin:0 0;
}

/* Header */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:990;
  display:flex; align-items:center; justify-content:space-between;
  padding:12px 24px;
  backdrop-filter:saturate(180%) blur(10px);
  background:rgba(255,255,255,.7);
  border-bottom:1px solid rgba(0,0,0,.05);
}
.brand{display:flex; align-items:center; gap:12px; text-decoration:none; color:inherit;}
.brand__logo{width:32px; height:32px; object-fit:contain;}
.brand__name{font-weight:800; letter-spacing:.5px;}
.site-nav{display:flex; gap:16px; align-items:center;}
.site-nav a{color:#111; text-decoration:none; font-weight:600; padding:8px 10px; border-radius:10px;}
.site-nav .cta{background:var(--brand); color:#fff; padding:10px 14px; box-shadow:var(--shadow)}

/* Sections */
.section{
  min-height: 66svh;
  display:grid;
  grid-template-columns: 1fr;
  align-items:center;
  padding: clamp(22px, 4vw, 54px) clamp(20px, 7vw, 120px);
  gap: clamp(16px, 2.6vw, 42px);
}

.section--compact{
  min-height:auto;
  padding-block: clamp(28px, 5.4vw, 80px);
}
.section--title{
  min-height:auto;
  padding-block: clamp(68px, 13.2vw, 188px);
  text-align:center;
}
.section-title__text{
  display:flex;
  flex-direction:column;
  gap:8px;
  align-items:center;
}
.section-title__lead--inline{
  white-space: nowrap;
}
.section-title__lead,
.section-title__accent{
  font-weight:800;
}

.hero{
  position:relative;
  overflow: visible !important; 
  align-content:flex-start;
  padding-top: clamp(16px, 4vw, 40px);
  min-height: 100svh;
}
.hero__content{
  max-width: 900px;
  text-align:center;
  margin-inline:auto;
  z-index:2;
}
.hero__title{
  font-size: clamp(26px, 3.6vw, 55px);
  line-height:1.05;
  margin:0 0 12px 0;
  letter-spacing:-.02em;
  display:block;
  text-align:center;
}
.hero__brand{
  display:inline-block;
  white-space:nowrap;
  margin-right:.4ch;
}
.hero__tagline{
  font-size: inherit;
  font-weight:700;
  display:inline-block;
  text-align:center;
}
.hero__tagline--compact{
  font-size: inherit;
  line-height:1.05;
}
.hero__subtitle{font-size: clamp(16px, 1.6vw, 22px); color:var(--muted); margin:0 0 24px 0;}
.hero__actions{display:flex; gap:12px; flex-wrap:wrap;}
.hero__visual{
  position:absolute;
  top:-5%;
  left:50%;
  width: clamp(400px, 54vw, 900px);
  transform:translate(-50%, 40%);
  pointer-events:none;
  z-index:1;
}
.hero__glow{
  position:absolute;
  width: clamp(280px, 40vw, 560px);
  height: clamp(280px, 40vw, 560px);
  border-radius:50%;
  filter: blur(4px);
  pointer-events:none;
  z-index:0;
  opacity:.8;
}
.hero__glow--left{
  top:10%;
  left:-20%;
  background: radial-gradient(circle at 15% 50%, rgba(20,180,100,.5) 0%, rgba(20,180,100,.15) 55%, transparent 80%);
}
.hero__glow--right{
  top:18%;
  right:-20%;
  background: radial-gradient(circle at 85% 50%, rgba(20,180,100,.4) 0%, rgba(20,180,100,.12) 55%, transparent 80%);
}
.hero__visual img {
  mix-blend-mode: multiply;
}
.hero__glow {
  z-index: 1 !important;
}
.hero__content {
  z-index: 2 !important;
}


/* Feature sections */
.feature{
  grid-template-columns: repeat(12, 1fr);
}
.feature__media{grid-column: 1 / span 6; order:1}
.feature__content{grid-column: 7 / span 6; order:2; align-self:center}
.feature--reverse .feature__media{grid-column: 7 / span 6; order:2}
.feature--reverse .feature__content{grid-column: 1 / span 6; order:1}
.feature__media img{
  width:clamp(220px, 42vw, 520px);
  margin:0 auto;
}
.feature__meta{
  font-size: clamp(18px, 2.2vw, 30px);
  font-weight:600;
  line-height:1.4;
  margin:0;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.feature__meta-secondary{
  color:var(--text);
}

.lesson-card{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(18px, 3vw, 40px);
  background:#fff;
  border-radius:30px;
  padding: clamp(20px, 4vw, 48px);
  box-shadow: 0 16px 38px rgba(0,0,0,.08);
  border:1px solid rgba(0,0,0,.06);
  align-items:center;
  max-width: min(1120px, 100%);
  margin-inline:auto;
}
.lesson-card__content{
  grid-column: 1 / span 6;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding-right: clamp(12px, 4vw, 60px);
}
.lesson-card__tag{
  font-weight:700;
  letter-spacing:.05em;
  text-transform:uppercase;
  margin:0;
}
.lesson-card__title{
  font-size: clamp(24px, 2.6vw, 38px);
  margin:0;
  line-height:1.15;
  max-width:100%;
  width:100%;
  text-align:left;
  white-space:nowrap;
  overflow:visible;
}
.lesson-card__text,
.lesson-card__list,
.lesson-card__creative{
  margin:0;
  font-size: clamp(15px, 1.5vw, 20px);
  color:var(--text);
  text-align:justify;
}
.lesson-card__list{
  padding-left: 1.2em;
}
.lesson-card__list--ordered{
  list-style: decimal;
  padding-left: 1.4em;
}
.lesson-card__list li{
  margin-bottom:6px;
}
.lesson-card__ellipsis{
  list-style:none;
  text-align:center;
  font-weight:700;
  color:var(--muted);
  margin: 6px 0;
}
.lesson-card__creative{
  font-weight:700;
}
.lesson-card__media{
  grid-column: 7 / span 6;
  justify-self:center;
}
.lesson-card__media img{
  width: clamp(200px, 30vw, 450px);
  height:auto;
}
.lesson-card__media video{
  width: clamp(200px, 30vw, 450px);
  border-radius: 18px;
  display:block;
  box-shadow: 0 12px 28px rgba(0,0,0,.12);
  border:none;
}

.lesson-carousel{
  position:relative;
  display:block;
  min-height:auto;
  padding:0;
  margin-block: clamp(28px, 5.4vw, 80px);
}
.lesson-carousel__sticky{
  position:sticky;
  top:var(--header-height);
  height:calc(100vh - var(--header-height));
  display:flex;
  align-items:center;
  overflow:visible;
}
.lesson-carousel__track{
  position:relative;
  width:100%;
  height:100%;
}
.lesson-panel{
  position:absolute;
  inset:0;
  display:flex;
  justify-content:center;
  align-items:center;
  padding-inline: clamp(20px, 7vw, 120px);
  opacity:0;
  transform: translateX(30vw) scale(.98);
  will-change: transform, opacity;
  transition: transform .45s ease, opacity .35s ease;
}

.outcomes{
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(18px, 3vw, 40px);
  display: flex !important;
  flex-wrap: wrap;
  justify-content: center;
}
.outcome-card{
  background: #fff;
  border-radius: 24px;
  padding: clamp(20px, 3vw, 36px);
  text-align:center;
  box-shadow: 0 14px 32px rgba(0,0,0,.07);
  border:1px solid rgba(0,0,0,.05);
}
.outcome-card__time{
  font-size: clamp(15px, 1.8vw, 22.5px);
  font-weight:600;
  margin:0 0 6px 0;
}
.outcome-card__result{
  font-size: clamp(14px, 1.65vw, 21px);
  margin:0;
  font-weight:600;
}
.outcomes--skills{
  display:flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(18px, 3vw, 40px);
}
.outcome-card--skill{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height: 220px;
  padding: clamp(24px, 4vw, 48px);
  width: min(720px, 100%);
  flex: 0 1 48%;
}
.outcome-card__skill{
  margin:0;
  font-size: clamp(15px, 1.8vw, 22.5px);
  font-weight:600;
  color:#000;
  text-align:center;
  line-height:1.3;
}
.outcome-card__skill--secondary{
  color:var(--text);
}

.audience{
  padding-top: clamp(24px, 4.5vw, 72px);
}
.audience__grid{
  display:grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(20px, 4vw, 64px);
  align-items:stretch;
  max-width: min(1100px, 100%);
  margin-inline:auto;
}
.audience__item{
  background:transparent;
  border:none;
  border-radius:0;
  box-shadow:none;
  padding:0;
}
.audience__title{
  margin:0 0 10px 0;
  font-size: clamp(18px, 2.3vw, 28px);
  font-weight:800;
  text-align:center;
}
.audience__text{
  margin:0;
  font-size: clamp(15px, 1.6vw, 20px);
  color:var(--text);
  font-weight:600;
}
.audience__link{
  color:inherit;
  font-weight:600;
  text-decoration:none;
  border-bottom:1px solid currentColor;
}
.audience__link:hover{
  color:var(--brand);
  border-bottom-color: var(--brand);
}
.audience__divider{
  width:1px;
  background:linear-gradient(180deg, rgba(0,0,0,0), rgba(0,0,0,.18), rgba(0,0,0,0));
  border-radius:999px;
}

.purchase{
  padding-top: clamp(24px, 4.5vw, 72px);
}
.purchase__grid{
  display:grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.3fr);
  gap: clamp(20px, 4vw, 48px);
  align-items:start;
  max-width: min(1100px, 100%);
  margin-inline:auto;
}
.purchase__stack{
  display:grid;
  gap: clamp(18px, 3vw, 28px);
}
.purchase__card{
  background:#fff;
  border-radius:24px;
  padding: clamp(20px, 3vw, 36px);
  box-shadow: 0 14px 32px rgba(0,0,0,.07);
  border:1px solid rgba(0,0,0,.05);
}
.purchase__title{
  margin:0 0 10px 0;
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight:800;
}
.purchase__text{
  margin:0 0 10px 0;
  font-size: clamp(15px, 1.6vw, 20px);
  color:var(--text);
  font-weight:600;
}
.purchase__text:last-child{
  margin-bottom:0;
}
.purchase__list{
  margin:0 0 10px 0;
  padding-left: 1.2em;
  color:var(--text);
  font-size: clamp(15px, 1.6vw, 20px);
  font-weight:600;
}
.purchase__link{
  color:inherit;
  font-weight:600;
  text-decoration:none;
  border-bottom:1px solid currentColor;
}
.purchase__link:hover{
  color:var(--brand);
  border-bottom-color: var(--brand);
}
/* Настраиваем ширину карточек с результатами (время обучения), 
   чтобы они вели себя предсказуемо при переносе */
.outcome-card:not(.outcome-card--skill) {
  flex: 1 1 300px; /* Карточка занимает от 300px и растягивается */
  max-width: 500px; /* Но не становится слишком огромной */
  width: 100%;
}

@media (max-width: 900px){
  .feature{grid-template-columns: 1fr}
  .feature__media, .feature__content{grid-column: auto; order:initial}
  .lesson-card{
    grid-template-columns:1fr;
    width: 100vw;
    max-width: none;
    margin-inline: calc(-1 * (100vw - 100%) / 2);
    border-radius: 22px;
  }
  .lesson-card__content, .lesson-card__media{grid-column:auto}
  .lesson-carousel{
    padding-block: clamp(28px, 5.4vw, 80px);
    padding-inline: 0;
  }
  .lesson-carousel__sticky{
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
  }
  .lesson-carousel__track{
    min-height: 100%;
  }
  .audience__grid{grid-template-columns: 1fr}
  .audience__divider{display:none}
  .purchase__grid{grid-template-columns: 1fr}
  .lesson-panel{
    position:absolute;
    inset:0;
    padding-inline: clamp(10px, 4vw, 18px);
    opacity:0;
    transform: translateX(30vw) scale(.98);
  }
}

.eyebrow{
  font-size: .9rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin:0 0 8px 0;
  opacity:.75;
}
.feature__title{
  font-weight: 800;
  font-size: clamp(24px, 3vw, 44px);
  line-height:1.15;
  margin:0 0 10px 0;
}
.feature__text{font-size: clamp(16px, 1.6vw, 22px); color:var(--muted); margin:0 0 16px 0;}

/* Cards / Visuals */
.card{
  display:block;
  border-radius: 18px;
  box-shadow: 0 12px 28px rgba(0,0,0,.12);
  border:none;
  background: transparent;
}

/* Buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px;
  padding: 12px 16px;
  border-radius: 14px;
  text-decoration:none;
  font-weight:700;
  border:1px solid rgba(0,0,0,.1);
  color:#111; background:#fff;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover{transform: translateY(-1px); box-shadow: var(--shadow);}
.btn:active{transform: translateY(0);}
.btn--primary{background: var(--brand); color:#fff; border-color: transparent;}
.btn--ghost{background:transparent; border-color: rgba(0,0,0,.15)}

/* Buy section */
.buy{
  display:grid; gap:12px; text-align:center; justify-items:center;
  max-width: 720px; margin-inline:auto;
}
.buy .muted{color:var(--muted);}
.buy__actions{display:flex; gap:12px; flex-wrap:wrap; justify-content:center}

/* Footer */
.site-footer{
  padding: clamp(28px, 5vw, 56px) 24px 32px;
  color:var(--muted);
  text-align:center;
  border-top:1px solid rgba(0,0,0,.08);
}
.site-footer__legal{
  margin-top: clamp(20px, 3vw, 32px);
}
.site-footer__legal p{
  margin:0 0 4px 0;
}
.site-footer__legal p:last-child{
  margin-bottom:0;
}
.site-footer__link{
  color:inherit;
  text-decoration:none;
  border-bottom:1px solid rgba(0,0,0,.2);
}
.site-footer__link:hover{
  color:var(--brand);
  border-bottom-color: var(--brand);
}

/* Поддержка Фонда содействия инновациям */
.support{
  max-width: min(900px, 100%);
  margin-inline:auto;
}
.support__logos{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap: clamp(20px, 4vw, 48px);
  margin-bottom: clamp(16px, 2.5vw, 24px);
}
.support__logo{
  height: clamp(48px, 7vw, 76px);
  width:auto;
  object-fit:contain;
}
/* У знака ПУТП пропорции ближе к квадрату, поэтому при равной высоте
   он выглядит мельче логотипа Фонда — выравниваем оптически */
.support__logo--utp{
  height: clamp(62px, 9vw, 98px);
}
.support__text{
  margin:0;
  font-size: clamp(13px, 1.3vw, 15px);
  line-height:1.6;
  color:var(--muted);
  text-wrap: balance;
}

@media (max-width: 600px){
  .support__logos{
    gap: 20px;
  }
  .support__logo{
    height: 44px;
  }
  .support__logo--utp{
    height: 57px;
  }
}

/* Apple-like reveals */
.reveal{
  opacity:0; transform: translateY(18px) scale(.98);
  filter: saturate(.7);
  transition: transform .9s cubic-bezier(.2,.8,.2,1), opacity .9s ease, filter .9s ease;
  will-change: transform, opacity, filter;
}
.reveal.in-view{
  opacity:1; transform: translateY(0) scale(1);
  filter: saturate(1);
}

h1.reveal,
h2.reveal,
h3.reveal{
  transform: translateY(69px) scale(.96);
  filter: blur(6px) saturate(.55);
  transition: transform .83s cubic-bezier(.18,.85,.2,1), opacity .48s ease, filter .6s ease;
}

.lesson-card.reveal{
  transform: translateY(80px) scale(1);
  opacity:0;
}
.lesson-card.reveal.in-view{
  transform: translateY(0) scale(1);
  opacity:1;
}

.outcome-card.reveal{
  transform: translateY(60px);
  opacity:0;
  transition-delay: var(--reveal-delay, 0s);
}
.outcome-card.reveal.in-view{
  transform: translateY(0);
  opacity:1;
}
.outcomes .outcome-card:nth-child(1){ --reveal-delay: 0s; }
.outcomes .outcome-card:nth-child(2){ --reveal-delay: .15s; }
.outcomes .outcome-card:nth-child(3){ --reveal-delay: .3s; }

/* Parallax (subtle) */
.parallax{will-change: transform;}

.floating{
  animation: float 8s ease-in-out infinite;
}
.floating--fast{
  animation: float-fast 4s ease-in-out infinite;
}
@keyframes float{
  0% { transform: translateY(0) }
  50%{ transform: translateY(-12px) }
  100%{ transform: translateY(0) }
}
@keyframes float-fast{
  0% { transform: translateY(0) }
  50%{ transform: translateY(-24px) }
  100%{ transform: translateY(0) }
}

/* Brand tint utility */
.tint{ color: var(--brand); }

/* Focus ring */
:focus-visible{ outline: 3px solid var(--ring); outline-offset: 2px; border-radius: 10px;}

.anchor-target{height:1px;}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  *{animation:none!important; transition:none!important}
  .lesson-carousel__sticky{position:static; height:auto}
  .lesson-carousel__track{transform:none!important; min-height:auto}
  .lesson-panel{
    position:static;
    opacity:1;
    transform:none!important;
  }
}

/* Принудительный сброс сетки для мобильных устройств */
@media (max-width: 900px) {
  .feature {
    grid-template-columns: 1fr !important;
  }
  
  /* Сбрасываем колонки и порядок для всех элементов, включая реверсивные блоки */
  .feature__media, 
  .feature__content,
  .feature--reverse .feature__media,
  .feature--reverse .feature__content {
    grid-column: auto !important;
    order: initial !important;
  }
}
@media (max-width: 900px) {
  /* Заставляем карточки навыков растягиваться на всю ширину */
  .outcome-card--skill {
    flex: 1 1 100% !important; /* Ширина 100% вместо 48% */
    width: 100% !important;
    min-height: auto !important; /* Высота подстроится под текст */
    padding: 30px !important; /* Немного уменьшим отступы для аккуратности */
  }
}
/* Специальные настройки для первого экрана на мобильных */
@media (max-width: 900px) {
  .hero {
    /* Чуть больше воздуха над роботом */
    min-height: 78svh !important;
    padding-top: clamp(28px, 8vw, 52px);
    margin-bottom: clamp(140px, 32vw, 280px);
    padding-inline: clamp(10px, 4vw, 16px);
  }

  .hero__visual {
    /* Опускаем робота ниже от заголовка */
    top: 38% !important;
    width: 120vw !important;
    max-width: 720px !important;
    transform: translateX(-50%) !important;
  }

  .hero__glow {
    width: 96vw !important;
    height: 96vw !important;
  }

  .hero__glow--left {
    top: 36% !important;
    left: -55% !important;
  }

  .hero__glow--right {
    top: 42% !important;
    right: -55% !important;
  }
}

/* Растягиваем медиа в блоках 2–4 на всю ширину на телефоне */
@media (max-width: 900px) {
  .feature__media img.card {
    display: block;
    width: 100% !important;
    max-width: none !important;
    margin: 0 !important;
    transform: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
  }
}

/* Больше воздуха между медиа и текстом в feature-блоках на телефоне */
@media (max-width: 900px) {
  .feature {
    align-items: flex-start;
    row-gap: clamp(48px, 16vw, 140px);
    padding-top: clamp(56px, 16vw, 150px);
    padding-bottom: clamp(82px, 20vw, 190px);
    padding-inline: 0;
  }

  .feature__media {
    margin-bottom: clamp(36px, 12vw, 96px);
    width: 100vw !important;
    max-width: none !important;
    display: block;
    margin-inline: calc(-1 * (100vw - 100%) / 2);
    transform: none !important;
  }

  .feature__content {
    padding-inline: clamp(20px, 7vw, 32px);
  }
}

@media (max-width: 900px) {
  .feature__meta {
    font-size: clamp(18px, 4.8vw, 30px);
    line-height: 1.35;
  }

  .hero__title {
    font-size: clamp(28px, 6.4vw, 42px);
    line-height: 1.08;
    letter-spacing: -0.01em;
    margin: 0 0 clamp(6px, 2vw, 12px);
  }

  .hero__content {
    padding-inline: clamp(8px, 4vw, 16px);
  }

  /* Уроки: минимальные размеры текста */
  .lesson-card__tag{
    font-size: clamp(12px, 3.6vw, 20px);
  }
  .lesson-card__title{
    font-size: clamp(18px, 5vw, 34px);
    line-height: 1.12;
  }
  .lesson-card__text,
  .lesson-card__list,
  .lesson-card__creative{
    font-size: clamp(14px, 3.6vw, 22px);
    line-height: 1.4;
  }
  /* Уроки: изображения по ширине 3/4 экрана */
  .lesson-card__media img,
  .lesson-card__media video{
    width: 75vw !important;
    max-width: 75vw !important;
    margin-inline: auto;
  }

  /* Карточки результатов */
  .outcome-card__time{
    font-size: clamp(14px, 3.6vw, 22.5px);
  }
  .outcome-card__result{
    font-size: clamp(14px, 4vw, 23px);
  }
  .outcome-card__skill{
    font-size: clamp(14px, 3.6vw, 23px);
  }

  /* Аудитория */
  .audience__title{
    font-size: clamp(16px, 4vw, 26px);
  }
  .audience__text{
    font-size: clamp(14px, 3.6vw, 21px);
    line-height: 1.45;
  }

  /* Покупка */
  .purchase__title{
    font-size: clamp(16px, 4vw, 26px);
  }
  .purchase__text,
  .purchase__list{
    font-size: clamp(16px, 4vw, 21px);
    line-height: 1.45;
  }
}