/* Desktop top nav — case study pages only (min-width 961px) */
.desktop-nav {
  display: none;
}

@media (min-width: 961px) {
  .desktop-nav {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 150;
    height: var(--desktop-nav-height);
    background: var(--paper, #f0ede6);
    border-bottom: 1px solid var(--ink-border, rgba(19, 17, 33, 0.1));
  }

  .desktop-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    height: 100%;
    padding-left: 1.75rem;
    padding-right: clamp(1.5rem, 5vw, 3rem);
  }

  .desktop-nav__brand {
    display: flex;
    align-items: center;
    min-width: 0;
  }

  .desktop-nav__logo {
    font-family: var(--font-copy, "Geist Sans", system-ui, sans-serif);
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1;
    text-decoration: none;
    color: var(--ink, #1a1814);
  }

  .desktop-nav__links {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 2.5vw, 2rem);
    flex-shrink: 0;
  }

  .desktop-nav__links a,
  .desktop-nav__llm {
    font-family: var(--font-copy, "Geist Sans", system-ui, sans-serif);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--muted, rgba(0, 0, 0, 0.35));
    transition: color 180ms ease;
  }

  .desktop-nav__links a:hover,
  .desktop-nav__links a:focus-visible,
  .desktop-nav__llm:hover,
  .desktop-nav__llm:focus-visible {
    color: var(--ink, #1a1814);
  }

  .desktop-nav__llm {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
  }

  .desktop-nav__llm-icon {
    display: block;
    height: 0.95rem;
    width: auto;
    aspect-ratio: 66 / 81;
    fill: currentColor;
    color: var(--accent, #b03a39);
    flex-shrink: 0;
  }

  .sidebar {
    top: var(--desktop-nav-height);
    height: calc(100vh - var(--desktop-nav-height));
  }

  .main {
    padding-top: calc(clamp(48px, 6vw, 80px) + var(--desktop-nav-height));
  }
}