.page-shell {
  width: 100%;
  margin: 0;
}

.header-inner,
.content,
.site-footer-inner {
  width: min(1280px, 100%);
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 10;
}

.header-topbar {
  background: #0b79b7;
  color: #ffffff;
}

.header-main {
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid rgba(12, 18, 35, 0.08);
}

.header-main-inner {
  display: grid;
  grid-template-columns: 120px 1fr;
  align-items: center;
  gap: 16px;
  min-height: 148px;
}

.content {
  margin-top: 0;
  padding: 40px;
  border: 1px solid var(--border);
  border-radius: 0 0 28px 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.site-footer {
  width: 100%;
  margin-top: 32px;
  padding: 0;
  background: #1f2529;
  color: #f7f8fa;
}

.site-footer-inner {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: 48px;
  padding: 42px 32px 20px;
}

@media (max-width: 860px) {
  .header-main-inner {
    grid-template-columns: 96px auto;
    justify-items: stretch;
    align-items: center;
    padding: 20px 0 24px;
  }

  .info-grid,
  .site-footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: 100%;
  }

  .header-inner,
  .content,
  .site-footer-inner {
    width: min(100% - 20px, 1280px);
  }

  .content,
  .site-footer-inner {
    padding: 22px;
  }

  .info-grid,
  .site-footer-inner {
    grid-template-columns: 1fr;
  }
}