body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background:
    radial-gradient(900px 500px at 90% -10%, rgba(139, 124, 255, 0.18), transparent 55%),
    radial-gradient(700px 400px at 0% 20%, rgba(46, 230, 214, 0.08), transparent 50%),
    var(--color-bg);
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--narrow {
  max-width: 760px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--space-sm);
  color: var(--color-cyan);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
}

.section__head {
  max-width: 36rem;
  margin-bottom: var(--space-2xl);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.3rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), background-color var(--transition), color var(--transition);
}

.btn--lg {
  padding: 1rem 1.6rem;
}

.btn--full {
  width: 100%;
}

.btn--cyan {
  background: var(--color-cyan);
  color: #06221f;
}

.btn--cyan:hover {
  background: #6ff3e7;
  transform: translateY(-1px);
}

.btn--ghost {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--ghost:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  height: var(--header-height);
  background: rgba(7, 11, 20, 0.4);
  transition: background-color var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.header--scrolled {
  background: rgba(7, 11, 20, 0.92);
  border-bottom-color: var(--color-border);
  backdrop-filter: blur(14px);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
}

.header__brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
}

.header__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-cyan);
}

.header__nav-list {
  display: flex;
  gap: 1.3rem;
}

.header__nav-link {
  color: var(--color-muted);
  font-size: 0.92rem;
}

.header__nav-link:hover {
  color: var(--color-cyan);
}

.header__menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  position: relative;
}

.header__menu-icon,
.header__menu-icon::before,
.header__menu-icon::after {
  position: absolute;
  left: 10px;
  width: 22px;
  height: 2px;
  background: var(--color-white);
}

.header__menu-icon {
  top: 20px;
}

.header__menu-icon::before {
  content: "";
  top: -7px;
}

.header__menu-icon::after {
  content: "";
  top: 7px;
}

.hero {
  padding: calc(var(--header-height) + 3.5rem) 0 4rem;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.hero__lead {
  color: var(--color-muted);
  font-size: 1.12rem;
  max-width: 34rem;
  margin-bottom: 1.8rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero__figure,
.about__media,
.banner img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.hero__figure img,
.about__media img,
.banner img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about__text p {
  color: var(--color-muted);
  margin-bottom: 1rem;
}

.about__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.2rem;
}

.about__pills li {
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  color: var(--color-cyan);
}

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.card {
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.card h3 {
  font-family: var(--font-display);
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--color-muted);
}

.banner {
  padding: 0 0 var(--space-3xl);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.steps li {
  padding: 1.3rem;
  border-top: 2px solid var(--color-violet);
  background: var(--color-surface);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.steps span {
  display: block;
  color: var(--color-violet);
  font-family: var(--font-display);
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.steps p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.stack li {
  padding: 0.7rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__item summary {
  cursor: pointer;
  padding: 1.1rem 0;
  font-weight: 600;
  list-style: none;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__item p {
  color: var(--color-muted);
  padding-bottom: 1.1rem;
}

.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact__lead,
.contact__meta {
  color: var(--color-muted);
  margin-bottom: 1rem;
}

.form {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.form label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.88rem;
  font-weight: 600;
}

.form input,
.form textarea {
  padding: 0.85rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: #0a1220;
  color: var(--color-text);
}

.form input:focus,
.form textarea:focus {
  outline: 1px solid var(--color-cyan);
}

.form__check {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  font-weight: 400;
  color: var(--color-muted);
}

.form__check a {
  color: var(--color-cyan);
  text-decoration: underline;
}

.form-note--error {
  color: #ff8a8a;
}

.form-note--success {
  color: var(--color-cyan);
}

.footer {
  padding: 2rem 0 2.4rem;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  gap: 0.8rem;
}

.footer__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
}

.footer__brand img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.footer__links {
  display: flex;
  gap: 1rem;
}

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

.privacy-page {
  padding: calc(var(--header-height) + 3rem) 0 5rem;
}

.privacy-page h1,
.privacy-page h2 {
  font-family: var(--font-display);
}

.privacy-page h1 {
  margin-bottom: 0.6rem;
}

.privacy-page h2 {
  margin: 1.8rem 0 0.6rem;
  color: var(--color-cyan);
}

.privacy-page p,
.privacy-page li {
  color: var(--color-muted);
  margin-bottom: 0.6rem;
}

.privacy-page ul {
  padding-left: 1.2rem;
  list-style: disc;
}

.privacy-page a {
  color: var(--color-cyan);
}

@media (max-width: 900px) {
  .header__nav {
    display: none;
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: rgba(7, 11, 20, 0.98);
    padding: 2rem 1.5rem;
  }

  .header__nav--open {
    display: block;
  }

  .header__nav-list {
    flex-direction: column;
    gap: 1.2rem;
  }

  .header__cta {
    display: none;
  }

  .header__menu-btn {
    display: block;
  }

  .hero__grid,
  .about,
  .cards,
  .steps,
  .contact {
    grid-template-columns: 1fr;
  }
}