body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* Promo bar */
.promo-bar {
  background: var(--color-promo-bar);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  line-height: 1.4;
  overflow: hidden;
  position: relative;
}

.promo-bar__track {
  display: flex;
  width: max-content;
  will-change: transform;
  animation: promo-marquee 8s linear infinite;
}

.promo-bar__text {
  flex: 0 0 auto;
  padding: var(--space-2) 3rem;
  white-space: nowrap;
}

@keyframes promo-marquee {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .promo-bar__track {
    animation-duration: 24s;
  }
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-6);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  flex-shrink: 0;
}

.site-logo__icon {
  width: auto;
  height: 30px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex: 1;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-nav__link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  transition: color var(--transition);
  white-space: nowrap;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-primary);
}

.site-header__utils {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.site-header__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  border-radius: var(--radius-full);
  transition: background var(--transition);
}

.site-header__icon:hover {
  background: var(--color-bg-alt);
}

.site-header__icon svg {
  width: 20px;
  height: 20px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding-block: var(--space-16);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

.site-footer__brand {
  max-width: 260px;
}

.site-footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-5);
}

.site-footer__subscribe {
  display: flex;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-6);
}

.site-footer__subscribe input {
  flex: 1;
  background: transparent;
  border: none;
  color: white;
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
  outline: none;
}

.site-footer__subscribe input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.site-footer__subscribe button {
  color: white;
  padding: var(--space-2);
}

.site-footer__heading {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-4);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__link {
  font-size: var(--text-sm);
  transition: color var(--transition);
}

.site-footer__link:hover {
  color: var(--color-text-inverse);
}

.site-footer__contact p {
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
  line-height: 1.6;
}

.site-footer__contact a {
  text-decoration: underline;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  font-size: var(--text-sm);
}

.site-footer__social {
  display: flex;
  gap: var(--space-4);
}

.site-footer__social a {
  color: white;
  opacity: 0.85;
  transition: opacity var(--transition);
}

.site-footer__social a:hover {
  opacity: 1;
}

.site-footer__social svg {
  width: 20px;
  height: 20px;
}

/* Page hero with image */
.page-hero {
  position: relative;
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #333 center/cover no-repeat;
  color: white;
  text-align: center;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.page-hero__title {
  position: relative;
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  letter-spacing: 0.02em;
}

.page-hero--faq {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), #3a3a3a center/cover;
}

.page-hero--contact {
  background: linear-gradient(rgba(0,0,0,0.45), rgba(0,0,0,0.45)), #555 center/cover;
}

.page-hero--manual {
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), #2a2a2a center/cover;
}

.page-hero--quickstart {
  background: linear-gradient(rgba(0,0,0,0.55), rgba(0,0,0,0.55)), #1a1a2e center/cover;
}

/* Page header (simple) */
.page-header {
  padding-block: var(--space-12);
  text-align: center;
}

.page-header__title {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
}

.page-header__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.7;
}

.section {
  padding-block: var(--space-16);
}

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

.section--blue {
  background: var(--color-primary);
  color: white;
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-10);
}

.section__header--left {
  text-align: left;
  margin-inline: 0;
  max-width: none;
}

.section__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.section__title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.section__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.section--blue .section__desc {
  color: rgba(255, 255, 255, 0.9);
}

/* Two column layouts */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.split--reverse .split__media {
  order: -1;
}

/* Manual sidebar layout */
.layout-with-sidebar {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: var(--space-10);
  align-items: start;
}

@media (max-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .split {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .layout-with-sidebar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: calc(var(--header-height) + var(--promo-height));
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    padding: var(--space-8);
    background: var(--color-bg);
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
    justify-content: flex-start;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .site-nav__link {
    display: block;
    padding: var(--space-3);
    font-size: var(--text-base);
  }

  .site-header__utils .site-header__icon:not(:last-child) {
    display: none;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .page-hero__title {
    font-size: var(--text-3xl);
  }

  .section__title {
    font-size: var(--text-2xl);
  }
}