.container {
  width: min(1240px, 100% - 32px);
  margin: 0 auto;
  padding: 0;
}

.header {
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--color-border);
}

.header-top {
  min-height: 76px;
  gap: var(--space-4);
}

.main-nav ul {
  gap: var(--space-5);
}

.main-nav a {
  position: relative;
  font-weight: 600;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--duration-base) var(--ease-standard);
}

.main-nav a:hover::after {
  width: 100%;
}

.main-content {
  padding-top: var(--space-5);
}

.content-layout {
  gap: var(--space-5);
  align-items: start;
}

.sidebar {
  width: 320px;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 20px;
  line-height: 1;
}

@media (max-width: 1023px) {
  .content-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    width: 100%;
  }
}

@media (max-width: 767px) {
  .menu-toggle {
    display: block;
  }

  .main-nav.is-collapsed {
    display: none;
  }

  .main-nav.is-open {
    display: block;
    width: 100%;
    margin-top: 8px;
  }
}