:root {
  --bg: #131313;
  --surface: #1d1d1f;
  --surface-alt: #222226;
  --text: #f5f5f5;
  --muted: #c8c8d0;
  --accent: #ff7a2f;
  --accent-soft: #ffb347;
  --border: #2f2f34;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 12px;
  color: var(--muted);
}

ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 16px 32px;
  background: rgba(19, 19, 19, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.nav__logo {
  width: 46px;
  height: 40px;
}

.nav__name {
  font-size: 15px;
}

.nav__links {
  display: flex;
  gap: 18px;
  justify-content: center;
  font-size: 15px;
}

.nav__links a {
  padding: 8px 10px;
  color: var(--muted);
  transition: color 0.2s ease;
}

.nav__links a:hover {
  color: var(--text);
}

.nav__actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #0f0f11;
  box-shadow: 0 10px 30px rgba(255, 122, 47, 0.35);
}

.btn--secondary {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

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

main {
  padding: 32px 32px 64px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  padding: 48px;
  background: linear-gradient(135deg, rgba(255, 122, 47, 0.12), rgba(255, 179, 71, 0.08)) no-repeat, var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero__text h1 {
  font-size: clamp(32px, 4vw, 44px);
}

.lead {
  font-size: 17px;
}

.hero__cta {
  display: flex;
  gap: 12px;
  margin: 18px 0;
}

.hero__signals {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.hero__card {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow);
}

.card__header {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.card__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.stat__value {
  font-size: 28px;
  font-weight: 700;
}

.stat__label {
  color: var(--muted);
}

.card__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.card__footer p {
  margin: 0;
}

.section {
  margin: 64px 0 0;
}

.section--alt {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
}

.section__header {
  max-width: 760px;
  margin-bottom: 24px;
}

.cards {
  display: grid;
  gap: 18px;
}

.cards--grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.card ul {
  margin-bottom: 0;
}

.cards--cases .card--case {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cards--cases .chip {
  align-self: flex-start;
}

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

.step {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.step__number {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 122, 47, 0.14);
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--accent);
}

.stack {
  display: grid;
  gap: 18px;
}

.stack__group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.stack__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  font-size: 14px;
}

.chip--light {
  background: rgba(255, 255, 255, 0.14);
}

.chip--dark {
  background: rgba(0, 0, 0, 0.28);
  border-color: rgba(255, 255, 255, 0.08);
}

.chip--action {
  background: rgba(255, 122, 47, 0.12);
  border-color: rgba(255, 122, 47, 0.4);
  color: #ffd4b0;
}

.icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 122, 47, 0.2), rgba(255, 179, 71, 0.2));
  border: 1px solid rgba(255, 122, 47, 0.4);
  position: relative;
  margin-bottom: 12px;
}

.icon::after,
.icon::before {
  content: "";
  position: absolute;
  background: #ffd9b3;
}

.icon--bot::before {
  width: 20px;
  height: 12px;
  border-radius: 6px;
  top: 16px;
  left: 12px;
}

.icon--bot::after {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  top: 10px;
  left: 18px;
}

.icon--gear::before {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  top: 11px;
  left: 11px;
  transform: rotate(45deg);
}

.icon--api::before {
  width: 22px;
  height: 4px;
  border-radius: 4px;
  top: 16px;
  left: 11px;
}

.icon--api::after {
  width: 22px;
  height: 4px;
  border-radius: 4px;
  top: 24px;
  left: 11px;
}

.icon--ai::before {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  top: 13px;
  left: 13px;
}

.section--cta {
  margin-top: 64px;
}

.cta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  padding: 32px;
  background: linear-gradient(135deg, rgba(255, 122, 47, 0.14), rgba(255, 179, 71, 0.1)), var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
}

.cta__text h2 {
  margin-top: 10px;
}

.cta__contacts {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.cta__form {
  display: grid;
  gap: 12px;
}

.cta__form label {
  display: grid;
  gap: 6px;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
}

.cta__form input,
.cta__form textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
}

.cta__form input:focus,
.cta__form textarea:focus {
  outline: 1px solid rgba(255, 122, 47, 0.6);
}

.form__note {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.footer {
  margin-top: 48px;
  padding: 24px 32px 32px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  color: var(--muted);
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
}

.footer__links {
  display: flex;
  gap: 14px;
}

.footer__links a {
  color: var(--muted);
}

.footer__links a:hover {
  color: var(--text);
}

.footer__meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 880px) {
  .nav {
    grid-template-columns: 1fr;
    row-gap: 12px;
    padding: 14px 20px;
  }

  .nav__links {
    justify-content: flex-start;
    flex-wrap: wrap;
    font-size: 14px;
    gap: 12px;
  }

  .nav__actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  main {
    padding: 24px 18px 48px;
  }

  .hero {
    padding: 24px 20px;
    gap: 24px;
  }
  
  .hero__text h1 {
    font-size: 28px;
  }
  
  .lead {
    font-size: 16px;
  }
  
  .section--alt {
    padding: 24px 20px;
  }
  
  .cta {
    padding: 24px 20px;
  }
}

@media (max-width: 560px) {
  .nav {
    padding: 12px 16px;
  }
  
  .nav__logo {
    width: 36px;
    height: 32px;
  }
  
  .nav__name {
    font-size: 14px;
  }
  
  .nav__links {
    order: 3;
    width: 100%;
    gap: 8px;
  }
  
  .nav__actions {
    order: 2;
  }
  
  .btn {
    font-size: 14px;
    padding: 10px 14px;
  }
  
  main {
    padding: 20px 14px 40px;
  }
  
  .hero {
    padding: 20px 16px;
    grid-template-columns: 1fr;
  }
  
  .hero__text h1 {
    font-size: 24px;
    line-height: 1.2;
  }
  
  .lead {
    font-size: 15px;
  }

  .hero__cta {
    flex-direction: column;
    gap: 10px;
  }
  
  .hero__cta .btn {
    width: 100%;
  }
  
  .hero__signals {
    font-size: 13px;
  }
  
  .card__stats {
    grid-template-columns: 1fr;
  }
  
  .section {
    margin: 40px 0 0;
  }
  
  .section--alt {
    padding: 20px 16px;
    border-radius: 16px;
  }
  
  .section__header h2 {
    font-size: 24px;
  }
  
  .cards--grid {
    grid-template-columns: 1fr;
  }

  .step {
    grid-template-columns: 1fr;
    padding: 14px;
  }
  
  .step__number {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }
  
  .cta {
    padding: 20px 16px;
    grid-template-columns: 1fr;
  }
  
  .cta__text h2 {
    font-size: 22px;
  }
  
  .cta__form input,
  .cta__form textarea {
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  .footer {
    padding: 20px 16px 24px;
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .footer__brand,
  .footer__links,
  .footer__meta {
    justify-content: flex-start;
  }
}

/* Дополнительная адаптация для очень маленьких экранов */
@media (max-width: 360px) {
  .hero__text h1 {
    font-size: 22px;
  }
  
  .section__header h2,
  .cta__text h2 {
    font-size: 20px;
  }
  
  .btn {
    font-size: 13px;
    padding: 9px 12px;
  }
  
  .chip,
  .pill {
    font-size: 12px;
    padding: 6px 10px;
  }
}