/* backend/src/main/resources/static/modules_styles/starter_standard/components/hamburger.css */

/* ==============================================
   HAMBURGER BUTTON — starter-standard

   Flat design, instant icon swap (no animation).
   Visible below lg (1024px).
   ============================================== */

.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--gb-border-default);
  border-radius: var(--gb-radius-md);
  cursor: pointer;
  position: relative;
  z-index: calc(var(--gb-z-overlay) + 1);
  transition:
    background var(--gb-transition-fast),
    border-color var(--gb-transition-fast);
}

.hamburger:hover {
  background: var(--gb-accent-subtle);
  border-color: var(--gb-border-strong);
}

.hamburger:focus-visible {
  outline: 2px solid var(--gb-accent-primary);
  outline-offset: 2px;
}

/* ==============================================
   LINES — hamburger icon (three horizontal lines)
   ============================================== */

.hamburger__line {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 2px;
  background: var(--gb-text-primary);
  border-radius: 1px;
  transform: translateX(-50%);
}

.hamburger__line:nth-child(1) {
  top: 11px;
}

.hamburger__line:nth-child(2) {
  top: 18px;
}

.hamburger__line:nth-child(3) {
  top: 25px;
}

/* ==============================================
   ACTIVE STATE — X icon (instant, no transition)
   ============================================== */

.hamburger--active .hamburger__line:nth-child(1) {
  top: 18px;
  transform: translateX(-50%) rotate(45deg);
}

.hamburger--active .hamburger__line:nth-child(2) {
  display: none;
}

.hamburger--active .hamburger__line:nth-child(3) {
  top: 18px;
  transform: translateX(-50%) rotate(-45deg);
}

/* ==============================================
   RESPONSIVE
   ============================================== */

@media screen and (max-width: 1023px) {
  .hamburger {
    display: flex;
  }
}

@media screen and (min-width: 1024px) {
  .hamburger {
    display: none;
  }
}