/* NAVBAR — MINIMAL, CLEAN */

.main-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
}

.logo img {
  height: 36px;
  width: auto;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.logo-text .highlight {
  color: var(--primary);
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--primary);
}

.theme-link {
  color: var(--text-muted);
  font-size: 1rem;
  padding: 0.25rem;
  transition: color var(--transition);
}

.theme-link:hover {
  color: var(--primary);
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
}

@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav.active {
    max-height: 300px;
  }

  .nav-panel {
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.25rem;
    align-items: flex-start;
  }
}