/* Header – big white bar like PDFGO */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: #ffffff;
  border-bottom: 1px solid rgba(229, 231, 235, 0.9);
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.04);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px; /* bigger header */
}

.logo {
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 1.3rem;
  text-decoration: none;
  color: #0f172a;
}

.logo span {
  color: var(--accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.9rem;
}

.nav a,
.nav span {
  color: var(--text-muted);
  text-decoration: none;
}

.nav a {
  position: relative;
  padding-bottom: 2px;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.18s ease-out;
}

.nav a:hover {
  color: var(--text);
}

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

@media (max-width: 600px) {
  .header__inner {
    padding-inline: 12px;
  }

  .nav {
    font-size: 0.82rem;
    gap: 12px;
  }
}
.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.logo img {
  height: 32px;   /* adjust if you want bigger */
  width: auto;
  display: block;
}