:root {
  --ink: #171717;
  --muted: #64615f;
  --line: #dfdad3;
  --paper: #f7f5f0;
  --white: #ffffff;
  --graphite: #222326;
  --cyan: #25b6c8;
  --coral: #e97860;
  --mint: #56b98f;
  --gold: #c9963d;
  --shadow: 0 22px 70px rgba(31, 29, 27, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Arial, sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  color: var(--white);
  background: linear-gradient(180deg, rgba(20, 20, 21, 0.72), rgba(20, 20, 21, 0));
}

.brand,
.nav-links,
.hero-actions,
.choose-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: #101112;
  background: var(--white);
  border-radius: 50%;
  font-size: 13px;
  letter-spacing: 0;
}

.nav-links {
  gap: 22px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
}

.header-action {
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  padding: 110px clamp(20px, 6vw, 76px) 64px;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(14, 15, 16, 0.88) 0%, rgba(14, 15, 16, 0.62) 41%, rgba(14, 15, 16, 0.18) 100%),
    linear-gradient(0deg, rgba(14, 15, 16, 0.36), rgba(14, 15, 16, 0.08));
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(44px, 7vw, 86px);
  line-height: 0.98;
  letter-spacing: 0;
  max-width: 760px;
}

.hero-copy {
  max-width: 660px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.55;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 800;
  line-height: 1;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #121314;
  background: var(--white);
  box-shadow: 0 12px 36px rgba(255, 255, 255, 0.18);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.hero-actions,
.choose-actions {
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.band {
  background: var(--white);
}

section:not(.hero) {
  padding: clamp(56px, 8vw, 104px) clamp(20px, 6vw, 76px);
}

.section-head {
  width: min(820px, 100%);
  margin-bottom: 34px;
}

.section-head.compact {
  margin-bottom: 28px;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 56px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  font-size: 23px;
  line-height: 1.18;
}

.use-grid,
.steps,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.use-grid article,
.steps article,
.price-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(247, 245, 240, 0.72);
}

.icon,
.steps span {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 16px;
  border-radius: 50%;
  color: var(--white);
  background: var(--graphite);
  font-size: 13px;
  font-weight: 900;
}

.use-grid p,
.steps p,
.price-card p,
.bot-copy p,
.demo-panel p,
.choose p {
  color: var(--muted);
  line-height: 1.65;
}

.bot-list {
  display: grid;
  gap: 22px;
}

.bot-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: clamp(22px, 4vw, 52px);
  align-items: stretch;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.bot-card.product {
  border-top: 6px solid var(--cyan);
}

.bot-card.doc {
  border-top: 6px solid var(--coral);
}

.bot-card.fashion {
  border-top: 6px solid var(--mint);
}

.bot-kicker {
  margin-bottom: 10px;
  color: var(--gold);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
}

.bot-copy .button {
  margin-top: 10px;
  color: var(--white);
  background: var(--graphite);
  box-shadow: none;
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 20px 0 22px;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  color: #2f2e2d;
  line-height: 1.45;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 8px;
  border-left: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  transform: rotate(-45deg);
}

.demo-panel {
  display: grid;
  align-content: space-between;
  min-height: 280px;
  padding: 24px;
  border-radius: 8px;
  color: var(--white);
  background:
    linear-gradient(145deg, rgba(34, 35, 38, 0.96), rgba(34, 35, 38, 0.82)),
    radial-gradient(circle at top right, rgba(37, 182, 200, 0.4), transparent 48%);
}

.demo-label {
  width: max-content;
  padding: 8px 12px;
  border-radius: 999px;
  color: #151617;
  background: var(--white);
  font-weight: 900;
  font-size: 13px;
}

.flow {
  display: grid;
  gap: 16px;
}

.flow div {
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.flow strong {
  display: block;
  margin-bottom: 7px;
}

.demo-panel p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.72);
}

.pricing-grid {
  align-items: stretch;
}

.price-card {
  background: var(--white);
}

.tariffs {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.tariffs span {
  display: block;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--paper);
  font-weight: 750;
}

.choose {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
}

.choose-content {
  max-width: 780px;
}

.choose .button.primary {
  color: var(--white);
  background: var(--graphite);
  box-shadow: none;
}

@media (max-width: 920px) {
  .site-header {
    position: absolute;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 860px;
    align-items: end;
  }

  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(14, 15, 16, 0.38) 0%, rgba(14, 15, 16, 0.68) 48%, rgba(14, 15, 16, 0.94) 100%),
      linear-gradient(90deg, rgba(14, 15, 16, 0.36), rgba(14, 15, 16, 0.22));
  }

  .use-grid,
  .steps,
  .pricing-grid,
  .bot-card,
  .choose {
    grid-template-columns: 1fr;
  }

  .demo-panel {
    min-height: 230px;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand span:last-child,
  .header-action {
    display: none;
  }

  .hero {
    min-height: 760px;
    padding: 92px 18px 40px;
  }

  h1 {
    font-size: 42px;
  }

  section:not(.hero) {
    padding: 52px 18px;
  }

  .button {
    width: 100%;
  }

  .bot-card,
  .use-grid article,
  .steps article,
  .price-card,
  .demo-panel {
    padding: 20px;
  }
}