.landing-shell {
  min-height: 100vh;
}

.site-header,
.landing-main,
.site-footer {
  width: min(calc(100% - 1.5rem), 48rem);
  margin: 0 auto;
}

.site-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 0 0.5rem;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-mark__icon {
  display: block;
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-mark__text {
  color: var(--page-text);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.site-nav a {
  color: var(--page-text-muted);
  font-size: 0.9rem;
}

.landing-main {
  padding: 1.5rem 0 3rem;
}

.intro-section {
  margin-bottom: 1rem;
}

.hero-card {
  border: 1px solid var(--page-border);
  border-radius: 1.5rem;
  background: linear-gradient(180deg, var(--theme-white-03), var(--theme-white-02));
  box-shadow: var(--page-shadow);
}

.hero-card {
  padding: 1rem;
}

.hero-card__eyebrow {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--page-accent-strong);
}

.hero-card__title {
  margin: 0;
  font-size: clamp(2rem, 10vw, 3.5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.hero-card__copy {
  max-width: 34rem;
  margin: 1rem 0 0;
  line-height: 1.7;
  color: var(--page-text-muted);
}

.hero-card__actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 0;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 3.1rem;
  padding: 0.85rem 1.2rem;
  border-radius: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.primary-action {
  border: 1px solid var(--page-accent);
  background: linear-gradient(135deg, var(--page-accent), var(--theme-orange-550));
  color: var(--theme-orange-050);
}

.secondary-action {
  border: 1px solid var(--theme-white-14);
  background: var(--theme-white-04);
  color: var(--page-text);
}

.setup-section {
  margin-top: 1.5rem;
}

.teaser-section {
  margin-top: 2rem;
  text-align: center;
}

.teaser-section__art {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
}

.teaser-section__logo {
  position: relative;
  z-index: 1;
  width: min(9rem, 42vw);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 1.2rem var(--theme-orange-18));
}

.teaser-section__particle {
  position: absolute;
  display: block;
  border-radius: 999px;
  pointer-events: none;
  background: radial-gradient(circle, var(--page-accent-strong) 0%, var(--theme-orange-08) 65%, transparent 100%);
  box-shadow:
    0 0 1.2rem var(--theme-orange-18),
    0 0 2.2rem var(--theme-orange-12);
}

.teaser-section__particle--one {
  width: 6rem;
  height: 6rem;
  transform: translate(-3.8rem, -1.8rem);
}

.teaser-section__particle--two {
  width: 3rem;
  height: 3rem;
  transform: translate(4.4rem, -2.4rem);
  background: radial-gradient(circle, var(--theme-orange-200) 0%, var(--theme-orange-08) 60%, transparent 100%);
}

.teaser-section__particle--three {
  width: 4rem;
  height: 4rem;
  transform: translate(-4.8rem, 2.5rem);
  background: radial-gradient(circle, var(--page-accent) 0%, var(--theme-orange-08) 58%, transparent 100%);
}

.teaser-section__particle--four {
  width: 7rem;
  height: 7rem;
  transform: translate(3.8rem, 2rem);
}

.teaser-section__copy {
  margin: 0.25rem 0 0;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--page-text-muted);
}

.server-address-section {
  margin-top: 1rem;
  text-align: center;
}

.server-address-section__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--page-accent-strong);
}

.server-address-section__value {
  margin: 0.45rem 0 0;
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--page-accent);
}

.setup-section__title {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--page-accent-strong);
}

.setup-grid {
  display: grid;
  gap: 1rem;
}

.setup-card {
  display: grid;
  gap: 0.55rem;
  padding: 1.2rem;
}

.setup-card {
  border: 1px solid var(--page-border);
  border-radius: 1.5rem;
  background: linear-gradient(180deg, var(--theme-white-03), var(--theme-white-02));
  box-shadow: var(--page-shadow);
}

.setup-card__label {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--page-text);
}

.setup-card__copy {
  line-height: 1.6;
  color: var(--page-text-muted);
}

.setup-card:hover,
.setup-card:focus-visible {
  border-color: var(--page-border-strong);
}

.site-footer {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0 0 2rem;
  color: var(--page-text-muted);
}

@media (min-width: 768px) {
  .site-header,
  .landing-main,
  .site-footer {
    width: min(calc(100% - 3rem), 64rem);
  }

  .site-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.5rem;
  }

  .hero-card {
    padding: 1rem;
  }

  .intro-section {
    margin-bottom: 1.25rem;
  }

  .hero-card__actions {
    flex-direction: row;
    justify-content: center;
  }

  .primary-action,
  .secondary-action {
    width: auto;
  }

  .setup-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .teaser-section {
    margin-top: 2.5rem;
  }

  .teaser-section__art {
    min-height: 14rem;
  }

  .teaser-section__logo {
    width: 10rem;
  }

  .site-footer {
    flex-direction: row;
    justify-content: space-between;
  }
}