:root {
  --bg: #f2f2f7;
  --surface: #fff;
  --surface-2: #e5e5ea;
  --text: #1c1c1e;
  --sub: #636366;
  --hint: #8e8e93;
  --purple: #af52de;
  --pink: #ff375f;
  --green: #34c759;
  --border: rgba(60, 60, 67, 0.16);
  --radius: 16px;
}
:root.dark {
  --bg: #000;
  --surface: #1c1c1e;
  --surface-2: #2c2c2e;
  --text: #fff;
  --sub: #98989f;
  --hint: #636366;
  --purple: #bf5af2;
  --pink: #ff6b8a;
  --green: #30d158;
  --border: rgba(255, 255, 255, 0.1);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
}
.site-shell {
  min-height: 100vh;
  overflow: hidden;
  background: var(--bg);
}
.topbar-inner {
  max-width: 920px;
  height: 64px;
  padding: 0 20px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar {
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
}
.brand {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.04em;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 600;
}
.nav-link {
  color: var(--sub);
}
.theme-button,
.try-button {
  border: 0;
  background: var(--surface-2);
  color: var(--text);
  border-radius: 12px;
  padding: 9px 13px;
  font-size: 11px;
  cursor: pointer;
}
.theme-button {
  width: 32px;
  height: 32px;
  padding: 0;
  font-size: 17px;
  display: grid;
  place-items: center;
}
.theme-button svg {
  width: 17px;
  height: 17px;
}
.theme-button:hover,
.try-button:hover {
  background: var(--purple);
  color: #fff;
}
.eyebrow {
  color: var(--sub);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.telegram-eyebrow svg {
  color: var(--purple);
}
h1 {
  margin: 0;
  max-width: 580px;
  font-size: clamp(52px, 10vw, 88px);
  line-height: 0.96;
  letter-spacing: -0.08em;
  font-weight: 800;
}
h1 span {
  color: var(--purple);
}
.story {
  max-width: 920px;
  margin: 0 auto;
  min-height: calc(100vh - 64px);
  height: calc(100vh - 64px);
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  overscroll-behavior: contain;
  touch-action: none;
}
.story-track {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  align-items: center;
  gap: 48px;
  padding: 40px 0;
}
.story-copy h1 {
  font-size: clamp(46px, 7vw, 82px);
}
.story-prompt {
  margin: 34px 0 0;
  color: var(--sub);
  font-size: 13px;
}
.story-prompt:after {
  content: " ↓";
  color: var(--purple);
  font-size: 18px;
}
.story-stage {
  position: relative;
  min-height: clamp(360px, calc(100vh - 230px), 480px);
  margin-top: 44px;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.story-stage.is-dragging {
  cursor: grabbing;
}
.story-screen {
  --pos: 0;
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 34px;
  border: 1px solid color-mix(in srgb, var(--purple) 32%, var(--border));
  border-radius: 28px;
  background: linear-gradient(
    145deg,
    var(--surface),
    color-mix(in srgb, var(--purple) 12%, var(--surface))
  );
  box-shadow: 0 26px 50px -32px rgba(20, 10, 40, 0.45);
  /* стопка: каждая следующая карточка чуть меньше и выглядывает сверху */
  transform-origin: 50% 100%;
  transform: translate(var(--dx, 0px), calc(var(--pos) * -8%))
    rotate(var(--rot, 0deg)) scale(calc(1 - var(--pos) * 0.05));
  z-index: calc(10 - var(--pos));
  transition:
    transform 0.5s cubic-bezier(0.22, 0.8, 0.2, 1),
    opacity 0.35s;
  pointer-events: none;
  will-change: transform;
}
.story-screen.is-active {
  z-index: 20;
  pointer-events: auto;
}
/* карточка улетает к краю и растворяется, затем заезжает под низ стопки */
.story-screen.is-leaving {
  z-index: 30;
  opacity: 0;
  transition:
    transform 0.32s cubic-bezier(0.5, 0, 0.9, 0.6),
    opacity 0.3s ease-in;
}
/* карточка возвращается наверх сбоку */
.story-screen.is-entering {
  z-index: 30;
  opacity: 0;
  transition: none;
}
.story-stage.is-dragging .story-screen {
  transition: none;
}
.story-hint {
  position: absolute;
  right: 0;
  bottom: -30px;
  left: 0;
  margin: 0;
  color: var(--hint);
  font-size: 12px;
  letter-spacing: 0.02em;
  text-align: center;
  pointer-events: none;
}
.story-screen-number {
  position: absolute;
  top: 30px;
  left: 34px;
  color: var(--purple);
  font-size: 13px;
  font-weight: 700;
}
.story-screen-icon {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 54px;
  border-radius: 18px;
  color: var(--purple);
  background: color-mix(in srgb, var(--purple) 18%, transparent);
  font-size: 28px;
}
.story-screen-icon svg {
  width: 28px;
  height: 28px;
}
.story-screen h2 {
  margin: 0 0 12px;
  font-size: clamp(27px, 4vw, 40px);
  line-height: 1;
  letter-spacing: -0.07em;
}
.story-screen p {
  margin: 0;
  color: var(--sub);
  font-size: 15px;
  line-height: 1.55;
}
.story-ui,
.story-status,
.story-flow {
  margin-top: 34px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface-2) 70%, transparent);
}
.story-ui {
  display: grid;
  gap: 10px;
}
.story-ui b {
  font-size: 19px;
}
.story-ui span {
  color: var(--sub);
  font-size: 12px;
}
.story-ui strong {
  color: var(--purple);
  font-size: 13px;
}
.story-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.story-flow i {
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--purple);
  background: color-mix(in srgb, var(--purple) 16%, transparent);
  font-size: 11px;
  font-style: normal;
}
.story-flow b {
  color: var(--hint);
}
.story-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.story-status span {
  color: var(--sub);
}
.story-status strong {
  padding: 7px 10px;
  border-radius: 99px;
  color: var(--green);
  background: color-mix(in srgb, var(--green) 15%, transparent);
  font-size: 11px;
}
.story-screen .primary-button {
  align-self: flex-start;
  margin-top: 30px;
}
.primary-button {
  display: inline-flex;
  align-items: center;
  background: var(--purple);
  color: #fff;
  border-radius: var(--radius);
  padding: 15px 18px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 8px 28px rgba(191, 90, 242, 0.24);
}
.primary-button span {
  margin-left: 10px;
  display: inline-flex;
}
.primary-button span svg {
  width: 1em;
  height: 1em;
}
.statement,
.footer {
  max-width: 920px;
  margin: auto;
  padding-left: 20px;
  padding-right: 20px;
}
.statement {
  padding-top: 34px;
  padding-bottom: 70px;
  display: grid;
  grid-template-columns: 42px 1fr;
  border-top: 1px solid var(--border);
}
.statement-index,
.feature-index {
  color: var(--purple);
  font-size: 11px;
  font-weight: 700;
}
.statement p {
  margin: 0;
  font-size: clamp(26px, 7vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.06em;
  font-weight: 700;
}
.statement em {
  color: var(--sub);
  font-style: normal;
}
.features,
.faq {
  max-width: 920px;
  margin: 0 auto;
  padding: 84px 20px;
  border-top: 1px solid var(--border);
}
.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}
.section-heading .eyebrow {
  color: var(--purple);
  margin: 0;
  font-size: 10px;
}
.section-heading span {
  color: var(--sub);
  font-size: 11px;
}
.faq-heading {
  display: block;
  text-align: center;
}
.faq-heading .eyebrow {
  justify-content: center;
}
.faq-heading h2 {
  margin: 0;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1;
  letter-spacing: -0.07em;
}
.faq-heading h2 span {
  color: var(--sub);
  font-size: inherit;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 22px;
  overflow: hidden;
}
.feature-card {
  min-height: 210px;
  padding: 26px;
  background: var(--surface);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.feature-card-large {
  grid-row: span 2;
  background: linear-gradient(145deg, var(--surface), rgba(175, 82, 222, 0.12));
}
.feature-topline {
  display: flex;
  justify-content: space-between;
}
.feature-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 15px;
  color: var(--purple);
  background: color-mix(in srgb, var(--purple) 14%, transparent);
}
.feature-icon svg {
  width: 24px;
  height: 24px;
}
.feature-card h2 {
  margin: 26px 0 8px;
  font-size: 25px;
  letter-spacing: -0.06em;
}
.feature-card p {
  margin: 0;
  color: var(--sub);
  font-size: 12px;
  line-height: 1.5;
  max-width: 270px;
}
.feature-card:nth-child(2) .feature-icon {
  color: var(--green);
}
.feature-card:nth-child(3) .feature-icon {
  color: #0a84ff;
}
.feature-card:nth-child(4) .feature-icon {
  color: var(--pink);
}

.faq details {
  border-top: 1px solid var(--border);
  padding: 26px 0;
}
.faq details:last-child {
  border-bottom: 1px solid var(--border);
}
.faq summary {
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary:after {
  content: "+";
  color: var(--purple);
}
.faq details[open] summary:after {
  content: "−";
}
.faq details p {
  max-width: 680px;
  margin: 16px 48px 2px 0;
  color: var(--sub);
  font-size: 13px;
  line-height: 1.7;
}
.workflow-section {
  max-width: 920px;
  margin: 0 auto;
  padding: 82px 20px;
  border-top: 1px solid var(--border);
}
.workflow-heading h2 {
  margin: 0 0 64px;
  font-size: clamp(42px, 8vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.08em;
}
.workflow-heading h2 span {
  color: var(--sub);
}
.workflow-list {
  border-top: 1px solid var(--border);
}
.workflow-step {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--border);
}
.workflow-number {
  color: var(--purple);
  font-weight: 700;
}
.workflow-step h3 {
  margin: 0 0 10px;
  font-size: 25px;
  letter-spacing: -0.06em;
}
.workflow-step p {
  margin: 0;
  color: var(--sub);
  font-size: 16px;
}

.cta-section {
  max-width: 920px;
  margin: 0 auto;
  padding: 20px 20px 100px;
}
.cta-content {
  padding: 58px 48px;
  border-radius: 26px;
  background: linear-gradient(120deg, var(--purple), #6b2b8d 70%, #24102f);
  color: #fff;
}
.cta-content h2 {
  margin: 0 0 12px;
  font-size: clamp(30px, 5vw, 54px);
  line-height: 1;
  letter-spacing: -0.07em;
}
.cta-content p {
  max-width: 420px;
  margin: 0 0 28px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}
.cta-button {
  background: #fff;
  color: #27102f;
  box-shadow: none;
}
.footer {
  max-width: none;
  padding: 62px max(20px, calc((100vw - 920px) / 2)) 24px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-content {
  max-width: 920px;
  margin: 0 auto 38px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 56px;
}
.footer-brand {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.08em;
}
.footer-intro p {
  max-width: 300px;
  margin: 18px 0 28px;
  color: var(--sub);
  font-size: 13px;
  line-height: 1.65;
}
.footer-contact {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 15px 18px;
  border-radius: 14px;
  background: var(--bg);
  color: var(--purple);
  font-size: 13px;
  font-weight: 600;
}
.footer-contact span {
  display: inline-flex;
}
.footer-contact span svg {
  width: 1em;
  height: 1em;
}
.footer-disclaimer {
  max-width: 920px;
  margin: 14px auto 0;
  color: var(--hint);
  font-size: 10px;
  line-height: 1.6;
}
.footer-section h4 {
  margin: 0 0 18px;
  font-size: 15px;
}
.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 11px;
}
.footer-section a {
  color: var(--sub);
  font-size: 12px;
}
.footer-meta {
  max-width: 920px;
  margin: auto;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  color: var(--hint);
  font-size: 10px;
}
.footer-legal {
  display: flex;
  gap: 24px;
}
@media (max-width: 699px) {
  .nav-link {
    display: none;
  }
  .story {
    min-height: calc(100svh - 64px);
    height: auto;
    padding-bottom: 48px;
    touch-action: pan-y;
  }
  .story-track {
    grid-template-columns: 1fr;
    gap: 20px;
    align-content: center;
    padding: 28px 0;
  }
  .story-copy h1 {
    font-size: clamp(44px, 12vw, 64px);
  }
  .story-prompt {
    margin-top: 20px;
  }
  .story-stage {
    min-height: 420px;
  }
  .story-screen {
    padding: 28px;
    border-radius: 24px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-card-large {
    grid-row: auto;
  }
  .section-heading {
    display: block;
  }
  .section-heading span {
    display: block;
    margin-top: 8px;
  }
  .faq-heading h2 {
    font-size: clamp(28px, 9vw, 38px);
  }
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 34px 18px;
  }
  .footer-intro {
    grid-column: 1/-1;
  }
  .footer-meta {
    flex-direction: column;
    gap: 16px;
  }
  .footer-legal {
    flex-wrap: wrap;
    gap: 12px 20px;
  }
  .cta-content {
    padding: 38px 24px;
  }
  .workflow-step {
    grid-template-columns: 42px 1fr;
  }
  .faq details p {
    margin-right: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .story-screen {
    transition: none;
  }
}

/* Прелоадер: закрывает страницу до полной загрузки шрифтов и изображений */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  transition:
    opacity 0.4s ease,
    visibility 0.4s ease;
}
.preloader-spinner {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--purple);
  animation: preloader-spin 0.8s linear infinite;
}
.preloader-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
@keyframes preloader-spin {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .preloader-spinner {
    animation: none;
  }
}

/* Toast (в исходнике стилей не было — без них текст был виден всегда) */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 10;
  padding: 12px 18px;
  border-radius: 14px;
  background: var(--text);
  color: var(--bg);
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  transform: translate(-50%, 16px);
  pointer-events: none;
  transition:
    opacity 0.25s,
    transform 0.25s;
}
.toast-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}
@media (prefers-reduced-motion: reduce) {
  .toast {
    transition: none;
  }
}

/* =====================================================
   Режим «презентации»: страница = набор слайдов
   ===================================================== */
:root {
  --top: calc(64px + env(safe-area-inset-top, 0px));
}
html,
body {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}
.site-shell {
  height: 100vh;
  height: 100dvh;
  min-height: 0;
}
.topbar {
  position: fixed;
  top: env(safe-area-inset-top, 0px);
  left: 0;
  right: 0;
  z-index: 5;
}
.deck {
  position: fixed;
  top: var(--top);
  right: 0;
  bottom: 0;
  left: 0;
  overflow: hidden;
}
.deck-track {
  height: 100%;
  display: flex;
  flex-direction: column;
  transform: translateY(calc((var(--i, 0) + var(--p, 0)) * -100%));
  transition: transform 0.7s cubic-bezier(0.22, 0.8, 0.2, 1);
  will-change: transform;
}
.deck-track.is-dragging {
  transition: none;
}
.slide {
  flex: none;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  touch-action: pan-y;
}
/* Секции внутри слайда: по центру, если помещаются; со скроллом, если нет */
.slide > section {
  width: 100%;
  margin: auto;
  border: 0;
  padding-top: 24px;
  padding-bottom: 24px;
}
.slide > .story {
  height: 100%;
  min-height: 0;
  padding-top: 0;
  padding-bottom: 0;
}
.slide > .story .story-track {
  padding: 24px 0;
}
.slide .story-copy h1 {
  font-size: clamp(40px, min(7vw, 8.5vh), 82px);
}
.slide > .statement {
  height: 100%;
  max-width: 1080px;
  padding-top: 0;
  padding-bottom: 0;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: 24px;
}
.slide > .statement p {
  font-size: clamp(30px, 4.4vw, 56px);
}
.slide .footer {
  flex: none;
}

/* Индикатор разделов: серая точка + фиолетовая «капсула», которая проявляется по мере жеста (--f от 0 до 1) */
.dots {
  position: fixed;
  top: var(--top);
  right: 4px;
  bottom: 0;
  z-index: 6;
  display: flex;
  flex-direction: column;
  justify-content: center;
  pointer-events: none;
}
.dot {
  position: relative;
  width: 16px;
  height: 22px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  pointer-events: auto;
}
.dot::before,
.dot::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 18px;
  margin: -9px 0 0 -3px;
  /* вертикальный радиус компенсирует scaleY — форма всегда остаётся ровной капсулой */
  border-radius: 3px / calc(3px / (0.33 + 0.67 * var(--f, 0)));
  transform: scaleY(calc(0.33 + 0.67 * var(--f, 0)));
  transition:
    opacity 0.3s,
    transform 0.3s,
    border-radius 0.3s;
}
.dot::before {
  background: var(--hint);
  opacity: calc(0.55 * (1 - var(--f, 0)));
}
.dot::after {
  background: var(--purple);
  opacity: var(--f, 0);
}
.dots.is-dragging .dot::before,
.dots.is-dragging .dot::after {
  transition: none;
}
.dot:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: -2px;
  border-radius: 6px;
}

/* Компактный первый слайд на телефонах, чтобы помещался в экран */
@media (max-width: 699px) {
  .slide > .story .story-track {
    gap: 14px;
    padding: 12px 0;
  }
  .slide .story-copy h1 {
    font-size: clamp(34px, 10.5vw, 52px);
  }
  .slide .story-copy .eyebrow {
    margin-bottom: 12px;
  }
  .slide .story-prompt {
    margin-top: 12px;
  }
  .slide .story-stage {
    min-height: min(360px, 50vh);
  }
  .slide .story-screen {
    padding: 22px;
  }
  .slide .story-screen-number {
    top: 22px;
    left: 22px;
  }
  .slide .story-screen-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 22px;
    font-size: 24px;
  }
  .slide .story-screen-icon svg {
    width: 24px;
    height: 24px;
  }
  .slide .story-screen h2 {
    font-size: clamp(24px, 7vw, 32px);
  }
  .slide .story-ui,
  .slide .story-status,
  .slide .story-flow {
    margin-top: 20px;
  }
  .slide .story-screen .primary-button {
    margin-top: 22px;
  }
}
/* Компактные слайды на телефонах: чтобы каждый слайд помещался в экран */
@media (max-width: 699px) {
  .slide > section {
    padding-top: 12px;
    padding-bottom: 12px;
  }
  .slide .story-screen {
    padding-top: 52px;
  }
  .slide .section-heading {
    margin-bottom: 12px;
  }
  .slide .section-heading span {
    margin-top: 4px;
  }
  .slide .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .slide .feature-card {
    min-height: 0;
    padding: 16px;
  }
  .slide .feature-card-large {
    grid-row: auto;
  }
  .slide .feature-icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
  }
  .slide .feature-icon svg {
    width: 18px;
    height: 18px;
  }
  .slide .feature-card h2 {
    margin: 12px 0 6px;
    font-size: 16px;
  }
  .slide .feature-card p {
    font-size: 11px;
    line-height: 1.45;
  }

  .slide .workflow-heading h2 {
    margin-bottom: 24px;
    font-size: clamp(34px, 10vw, 48px);
  }
  .slide .workflow-step {
    padding: 16px 0 18px;
  }
  .slide .workflow-step h3 {
    margin-bottom: 6px;
    font-size: 20px;
  }
  .slide .workflow-step p {
    font-size: 14px;
  }

  .slide .faq details {
    padding: 18px 0;
  }
  .slide .cta-content {
    padding: 32px 22px;
  }
  .slide .footer {
    padding-top: 32px;
  }
}
/* Совсем низкие экраны телефонов: убираем декоративную иконку на первом слайде */
@media (max-width: 699px) and (max-height: 720px) {
  .slide .story-copy h1 {
    font-size: clamp(30px, 9vw, 44px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .deck-track,
  .dot::before,
  .dot::after {
    transition: none;
  }
}

/* =====================================================
   Первый слайд с телефоном, шаги, полировка
   ===================================================== */
button,
a {
  -webkit-tap-highlight-color: transparent;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--purple);
  outline-offset: 3px;
}

/* Скроллбар слайда не должен налезать на точки-навигацию (прокрутка работает как прежде) */
.slide {
  scrollbar-width: none;
}
.slide::-webkit-scrollbar {
  display: none;
}

/* Hero: заголовок + скриншот приложения (под текущую тему) */
.hero {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px;
}
.slide > .hero {
  height: 100%;
  padding-top: 0;
  padding-bottom: 0;
}
.hero-grid {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 400px);
  grid-template-rows: minmax(0, 1fr);
  align-items: center;
  gap: 32px;
  padding: 16px 0;
}
.hero-visual {
  position: relative;
  align-self: stretch;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual::before {
  content: "";
  position: absolute;
  inset: 14% -6%;
  border-radius: 50%;
  background: radial-gradient(
    closest-side,
    color-mix(in srgb, var(--purple) 22%, transparent),
    transparent
  );
  filter: blur(24px);
}
.phone {
  position: relative;
  display: block;
  width: auto;
  height: 100%;
  max-width: 100%;
  object-fit: contain;
}
.phone-dark {
  display: none;
}
:root.dark .phone-light {
  display: none;
}
:root.dark .phone-dark {
  display: block;
}

/* Слайд с шагами: слева список шагов, справа карточка */
.story-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--border);
}
.story-step {
  width: 100%;
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 20px 0;
  border: 0;
  border-top: 1px solid var(--border);
  background: none;
  color: var(--hint);
  font: inherit;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1.05;
  text-align: left;
  cursor: pointer;
  transition: color 0.3s;
}
.story-step span {
  flex: none;
  width: 28px;
  font-size: 11px;
  letter-spacing: 0;
}
.story-step:hover {
  color: var(--sub);
}
.story-step.is-active {
  color: var(--text);
}
.story-step.is-active span {
  color: var(--purple);
}

/* Возможности: последняя карточка на всю ширину — без пустой серой ячейки */

/* Футер внутри слайда: на всю ширину, прижат к низу, без «схлопывания» */
.slide .footer {
  width: 100%;
  margin: 0;
  padding: 40px max(20px, calc((100vw - 880px) / 2)) 20px;
}

@media (max-width: 699px) {
  .hero-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    align-items: start;
    gap: 4px;
    padding: 12px 0 8px;
  }
  .story-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    border: 0;
  }
  .story-step {
    position: relative;
    height: 18px;
    padding: 0;
    border: 0;
    font-size: 0;
  }
  .story-step span {
    display: none;
  }
  .story-step::before {
    content: "";
    position: absolute;
    top: 7px;
    right: 0;
    left: 0;
    height: 4px;
    border-radius: 99px;
    background: var(--surface-2);
    transition: background 0.3s;
  }
  .story-step.is-active::before {
    background: var(--purple);
  }
  .slide .story-stage {
    min-height: min(460px, 66vh);
    margin-top: 34px;
  }
  .slide .story-hint {
    bottom: -26px;
  }
  .slide .footer {
    padding-top: 20px;
    padding-bottom: 16px;
  }
  .slide .cta-content {
    padding: 26px 20px;
  }
  .slide .cta-content p {
    margin-bottom: 18px;
  }
  .slide .footer-content {
    gap: 16px 18px;
    margin-bottom: 14px;
  }
  .slide .footer-section h4 {
    margin-bottom: 10px;
  }
  .slide .footer-section ul {
    gap: 8px;
  }
  .slide .footer-brand {
    font-size: 24px;
  }
  .slide .footer-intro p {
    margin: 10px 0 16px;
    font-size: 12px;
  }
  .slide .footer-contact {
    padding: 12px 14px;
  }
  .slide .footer-meta {
    gap: 10px;
    padding-top: 14px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .story-step,
  .story-step::before {
    transition: none;
  }
}

/* Слайд с фразой: текст + три экрана приложения (под текущую тему) */
.statement-copy {
  display: grid;
  grid-template-columns: 42px 1fr;
}
.statement-visual {
  align-self: stretch;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.shot {
  display: block;
  width: 100%;
  height: auto;
  max-height: 100%;
  object-fit: contain;
}
.shot-dark {
  display: none;
}
:root.dark .shot-light {
  display: none;
}
:root.dark .shot-dark {
  display: block;
}
@media (max-width: 799px) {
  .slide > .statement {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    align-items: start;
    gap: 8px;
    padding-top: 12px;
    padding-bottom: 8px;
  }
  .slide > .statement p {
    font-size: clamp(28px, 8.4vw, 40px);
  }
}

/* =====================================================
   Возможности и «Почему uChats»: отдельные карточки вместо цельного блока
   ===================================================== */
.slide .feature-grid {
  gap: 12px;
  border: 0;
  border-radius: 0;
  background: none;
  overflow: visible;
}
.slide .feature-card {
  border: 1px solid var(--border);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: 0 18px 36px -28px rgba(20, 10, 40, 0.4);
  transition:
    transform 0.3s,
    box-shadow 0.3s;
}
@media (hover: hover) {
  .slide .feature-card:hover {
    transform: translateY(-4px);
  }
}

/* Возможности — «бенто»: широкая, высокая и две малых карточки разных оттенков */
.slide .feature-grid {
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, minmax(clamp(190px, 28vh, 250px), auto));
}
.slide .feature-card {
  min-height: 0;
  padding: 24px;
}
.slide .feature-card-large {
  grid-column: span 2;
  grid-row: auto;
  background: linear-gradient(
    135deg,
    var(--surface),
    color-mix(in srgb, var(--purple) 18%, var(--surface))
  );
}
.slide .feature-card:nth-child(2) {
  grid-row: span 2;
  background: linear-gradient(
    180deg,
    var(--surface),
    color-mix(in srgb, var(--green) 16%, var(--surface))
  );
}
.slide .feature-card:nth-child(3) {
  background: linear-gradient(
    135deg,
    var(--surface),
    color-mix(in srgb, #0a84ff 14%, var(--surface))
  );
}
.slide .feature-card:nth-child(4) {
  grid-column: auto;
  background: linear-gradient(
    135deg,
    var(--surface),
    color-mix(in srgb, var(--pink) 14%, var(--surface))
  );
}
.slide .feature-card-large h2,
.slide .feature-card:nth-child(2) h2 {
  font-size: 30px;
}
.slide .feature-card-large p {
  max-width: 380px;
}

/* Телефоны: те же карточки, но компактнее */
@media (max-width: 699px) {
  .slide .feature-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: none;
    gap: 10px;
  }

  .slide .feature-card {
    padding: 14px;
    border-radius: 20px;
  }
  .slide .feature-card-large {
    grid-column: span 2;
  }
  .slide .feature-card:nth-child(2) {
    grid-row: auto;
  }
  .slide .feature-card:nth-child(4) {
    grid-column: span 2;
  }
  .slide .feature-card-large h2,
  .slide .feature-card:nth-child(2) h2 {
    font-size: 18px;
  }
  .slide .feature-card h2 {
    margin: 10px 0 4px;
  }
}

/* =====================================================
   Слайд 6: «Почему uChats» — крупные цветные иконки без карточек
   ===================================================== */
.pillars {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}
.pillars-head .eyebrow {
  margin: 0 0 18px;
}
.pillars-head h2 {
  margin: 0 0 clamp(28px, 6vh, 56px);
  font-size: clamp(38px, 6.4vw, 64px);
  line-height: 0.98;
  letter-spacing: -0.08em;
}
.pillars-head h2 span {
  color: var(--sub);
}
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.pillar-purple {
  --c1: #c26cf2;
  --c2: #8a3fe0;
}
.pillar-blue {
  --c1: #4fb0ff;
  --c2: #2f6df0;
}
.pillar-green {
  --c1: #4bd37f;
  --c2: #15a150;
}
.pillar-orange {
  --c1: #ffb340;
  --c2: #ff5a3c;
}
.pillar-icon {
  display: grid;
  place-items: center;
  width: 68px;
  height: 68px;
  margin: 0 auto 22px;
  border-radius: 24px;
  color: #fff;
  background: linear-gradient(145deg, var(--c1), var(--c2));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 16px 28px -14px var(--c2);
  transition: transform 0.35s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.pillar-icon svg {
  width: 30px;
  height: 30px;
}
.pillar h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.15;
  letter-spacing: -0.04em;
}
.pillar p {
  margin: 0;
  color: var(--sub);
  font-size: 13px;
  line-height: 1.55;
}
@media (hover: hover) {
  .pillar:hover .pillar-icon {
    transform: translateY(-4px) rotate(-4deg);
  }
}

/* =====================================================
   Слайд 7: «Точки входа» — цветные плитки-постеры
   ===================================================== */
.hub {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px;
}
.hub-head {
  text-align: center;
}
.hub-head .eyebrow {
  margin: 0 0 18px;
  justify-content: center;
}
.hub-head h2 {
  margin: 0 0 clamp(20px, 4vh, 36px);
  font-size: clamp(38px, 6.4vw, 64px);
  line-height: 0.98;
  letter-spacing: -0.08em;
}
.hub-head h2 span {
  color: var(--sub);
}
.hub-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 12px;
}
.hub-tile {
  --c1: #b862f2;
  --c2: #7a3ce6;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: clamp(150px, 21vh, 190px);
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: 28px;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(140deg, var(--c1), var(--c2));
  box-shadow: 0 24px 40px -28px var(--c2);
  transition:
    transform 0.3s,
    box-shadow 0.3s;
}
.hub-tile::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(
    120% 90% at 0% 0%,
    rgba(255, 255, 255, 0.3),
    transparent 55%
  );
}
.hub-tile:nth-child(1) {
  grid-column: span 7;
}
.hub-tile:nth-child(2) {
  grid-column: span 5;
}
.hub-tile:nth-child(3) {
  grid-column: span 5;
}
.hub-tile:nth-child(4) {
  grid-column: span 7;
}
.hub-tile:nth-child(5) {
  grid-column: span 12;
}
.hub-app {
  --c1: #4fb0ff;
  --c2: #4a4fe0;
}
.hub-channel {
  --c1: #2bcb70;
  --c2: #0b8a6f;
}
.hub-support {
  --c1: #ff8a4c;
  --c2: #e0245e;
}
.hub-docs {
  --c1: #8c93ff;
  --c2: #4b3ff2;
}
.hub-art {
  position: absolute;
  right: -12px;
  bottom: -20px;
  z-index: -1;
  width: 176px;
  height: 176px;
  color: #fff;
  opacity: 0.2;
  transform: rotate(-10deg);
  transition: transform 0.4s cubic-bezier(0.22, 0.8, 0.2, 1);
}
.hub-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hub-tag {
  padding: 6px 12px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.2);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0;
}
.hub-arrow {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  font-size: 16px;
  transition:
    transform 0.3s,
    background 0.3s,
    color 0.3s;
}
.hub-arrow svg {
  width: 16px;
  height: 16px;
}
.hub-body strong {
  display: block;
  font-size: 27px;
  letter-spacing: -0.05em;
}
.hub-body small {
  display: block;
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 13px;
}
@media (hover: hover) {
  .hub-tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 30px 44px -26px var(--c2);
  }
  .hub-tile:hover .hub-arrow {
    color: var(--c2);
    background: #fff;
    transform: translate(2px, -2px);
  }
  .hub-tile:hover .hub-art {
    transform: rotate(-4deg) scale(1.06);
  }
}

/* Телефоны */
@media (max-width: 699px) {
  .pillars-head .eyebrow,
  .hub-head .eyebrow {
    margin-bottom: 12px;
  }
  .pillars-head h2,
  .hub-head h2 {
    font-size: clamp(34px, 10vw, 44px);
  }
  .pillars-head h2 {
    margin-bottom: 26px;
  }
  .hub-head h2 {
    margin-bottom: 18px;
  }
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 16px;
  }
  .pillar-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 14px;
    border-radius: 19px;
  }
  .pillar-icon svg {
    width: 26px;
    height: 26px;
  }
  .pillar h3 {
    font-size: 16px;
  }
  .pillar p {
    font-size: 12px;
    line-height: 1.5;
  }
  .hub-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .hub-tile:nth-child(n) {
    grid-column: auto;
  }
  .hub-tile {
    min-height: 0;
    padding: 18px;
    border-radius: 22px;
  }
  .hub-top {
    position: absolute;
    top: 16px;
    right: 16px;
  }
  .hub-tag {
    display: none;
  }
  .hub-body {
    padding-right: 44px;
  }
  .hub-body strong {
    font-size: 22px;
  }
  .hub-art {
    right: 34px;
    bottom: -18px;
    width: 92px;
    height: 92px;
  }
}

/* Слайд 6: подпись по центру, описания выровнены по одной линии */
.pillars-head .eyebrow {
  justify-content: center;
}
@media (min-width: 700px) {
  .pillar h3 {
    min-height: 2.3em;
  }
}

/* =====================================================
   Кнопки в шапке — фирменный фиолетовый, а не серый
   ===================================================== */
.theme-button,
.try-button {
  background: var(--purple);
  color: #fff;
  text-decoration: none;
  transition:
    background 0.2s,
    transform 0.2s,
    box-shadow 0.2s;
  box-shadow: 0 8px 18px -10px
    color-mix(in srgb, var(--purple) 70%, transparent);
}
.theme-button:hover,
.try-button:hover {
  background: color-mix(in srgb, var(--purple) 82%, #000 18%);
  transform: translateY(-1px);
}
.theme-button:active,
.try-button:active {
  transform: translateY(0);
}

/* =====================================================
   Страницы «Политика конфиденциальности» и «Пользовательское соглашение»
   ===================================================== */
html.legal-html,
.legal-body {
  height: auto;
  overflow: visible;
  overscroll-behavior: auto;
}
.legal-shell {
  min-height: 100vh;
  min-height: 100dvh;
}
.legal-page {
  max-width: 920px;
  margin: 0 auto;
  padding: calc(64px + env(safe-area-inset-top, 0px) + 28px) 20px 0;
}
.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  color: var(--sub);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}
.legal-back:hover {
  color: var(--purple);
}
.legal-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.legal-head .eyebrow {
  margin-bottom: 14px;
}
.legal-head h1 {
  margin: 0 0 14px;
  font-size: clamp(32px, 5.5vw, 52px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.06em;
}
.legal-lead {
  margin: 0;
  color: var(--sub);
  font-size: 16px;
  line-height: 1.5;
}
.legal-updated {
  margin: 0;
  color: var(--hint);
  font-size: 12px;
}
.legal-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 20px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.legal-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--purple);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}
.legal-switch:hover {
  text-decoration: underline;
}
.legal-content {
  max-width: 720px;
  padding-bottom: 72px;
}
.legal-section {
  padding: 28px 0;
  border-top: 1px solid var(--border);
  scroll-margin-top: calc(64px + env(safe-area-inset-top, 0px) + 24px);
}
.legal-section:first-child {
  padding-top: 0;
  border-top: 0;
}
.legal-section h2 {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.legal-section h2 span {
  color: var(--purple);
  font-size: 13px;
  font-weight: 700;
}
.legal-section p {
  margin: 0 0 12px;
  color: var(--sub);
  font-size: 14.5px;
  line-height: 1.7;
}
.legal-section p:last-child {
  margin-bottom: 0;
}
.legal-section ul {
  margin: 0 0 12px;
  padding-left: 20px;
  color: var(--sub);
  font-size: 14.5px;
  line-height: 1.7;
}
.legal-section ul:last-child {
  margin-bottom: 0;
}
.legal-section li + li {
  margin-top: 4px;
}
.legal-section .ph,
.legal-footer-note .ph {
  padding: 1px 6px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--purple) 16%, transparent);
  color: var(--text);
  font-style: normal;
  font-weight: 600;
}
.legal-footer-note {
  margin-top: 8px;
  padding: 18px 20px;
  border: 1px dashed var(--border);
  border-radius: 16px;
}
.legal-footer-note p {
  margin: 0;
  color: var(--hint);
  font-size: 12.5px;
  line-height: 1.6;
}
.legal-page-footer {
  max-width: none;
  padding: 40px max(20px, calc((100vw - 880px) / 2)) 24px;
  border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
  .legal-page {
    padding-top: calc(64px + env(safe-area-inset-top, 0px) + 20px);
  }
  .legal-head {
    margin-bottom: 32px;
  }
  .legal-page-footer {
    padding-top: 28px;
  }
}