/* Hamburger Menu Animation */

.hamburger-btn {
  cursor: pointer;
  gap: 5px;
  padding: 0;
  width: 40px;
  height: 40px;
  overflow: visible; /* allow rotated arms to be visible */
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hamburger-line {
  display: block;
  width: 18px; /* shorter lines to avoid clipping at viewport edge */
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.25s ease;
  transform-origin: center;
}

.theme-light .hamburger-line {
  background: #111;
}

/* Default state (hamburger menu ≡) */
.hamburger-line-1 {
  transform: translateY(-5px);
}

.hamburger-line-2 {
  opacity: 1;
}

.hamburger-line-3 {
  transform: translateY(5px);
}

/* Active state (X icon ×) */
.hamburger-btn.active .hamburger-line-1 {
  transform: rotate(45deg) translateY(0) scaleX(1);
}

.hamburger-btn.active .hamburger-line-2 {
  opacity: 0;
}

.hamburger-btn.active .hamburger-line-3 {
  transform: rotate(-45deg) translateY(0) scaleX(1);
}