/* ==========================================================================
   Burger Menu - Мобільне меню (250 рядків)
   ========================================================================== */

/* ===== БУРГЕР-МЕНЮ ===== */

/* Бургер-меню (кнопка) */
.burger-menu {
  z-index: 1001;
  width: var(--menu-size-xl);
  height: var(--menu-size-xl);
  min-width: var(--menu-size-xl);
  max-width: var(--menu-size-xl);
  padding: 0;
  background: var(--color-gray-light);
  border-radius: var(--radius-pill);
  display: none;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  flex-grow: 0;
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
  color: var(--color-white);
  touch-action: manipulation;
  box-shadow: none;
}

.burger-menu__icon {
  display: flex;
  flex-direction: column;
  gap: calc(5px * var(--menu-scale));
  width: calc(22px * var(--menu-scale));
  height: calc(18px * var(--menu-scale));
  justify-content: space-between;
  position: relative;
}

.burger-menu__line {
  width: 100%;
  height: var(--menu-border-md);
  background: var(--color-white);
  border-radius: calc(2px * var(--menu-scale));
  transition: all var(--transition-fast);
}

/* Анімація перетворення в X */
.burger-menu[aria-expanded="true"] .burger-menu__icon {
  gap: 0;
}

.burger-menu[aria-expanded="true"] .burger-menu__line:nth-child(1) {
  position: absolute;
  top: 50%;
  left: 50%;
  width: calc(22px * var(--menu-scale));
  transform: translate(-50%, -50%) rotate(45deg);
  transform-origin: center;
}

.burger-menu[aria-expanded="true"] .burger-menu__line:nth-child(2) {
  opacity: 0;
}

.burger-menu[aria-expanded="true"] .burger-menu__line:nth-child(3) {
  position: absolute;
  top: 50%;
  left: 50%;
  width: calc(22px * var(--menu-scale));
  transform: translate(-50%, -50%) rotate(-45deg);
  transform-origin: center;
}

/* Overlay */
.burger-menu__overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-menu-overlay);
  background: rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.burger-menu__overlay[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

/* Dropdown меню */
.burger-menu__dropdown {
  position: fixed;
  bottom: 0;
  left: max(10px, env(safe-area-inset-left, 10px));
  right: max(10px, env(safe-area-inset-right, 10px));
  z-index: 1000;
  background: var(--color-gray-light);
  border-radius: var(--radius-lg);
  padding: 10px;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-normal),
              opacity var(--transition-normal),
              visibility var(--transition-normal);
  max-height: 80vh;
  overflow-y: auto;
  box-sizing: border-box;
  max-width: 100%;
  scrollbar-width: none;
  -ms-overflow-style: none;
  transform: translateY(100%);
  -webkit-transform: translateY(100%);
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border-light);
}

.burger-menu__dropdown[aria-hidden="false"] {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  -webkit-transform: translateY(0);
}

.burger-menu__dropdown::-webkit-scrollbar {
  display: none;
}

.burger-menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.burger-menu__link {
  display: block;
  padding: var(--menu-spacing-md);
  color: var(--color-white);
  text-decoration: none;
  font-size: calc(16px * var(--menu-scale));
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-align: center;
  touch-action: manipulation;
}

.burger-menu__link:focus {
  background: var(--color-primary);
  border: 1px solid var(--color-white);
  color: var(--color-white);
}

@media (hover: hover) {
  .burger-menu__link:hover {
    background: var(--color-primary);
    border: 1px solid var(--color-white);
    color: var(--color-white);
  }
}

@media (hover: hover) {
  .burger-menu__link:hover {
    background: var(--color-primary);
    border: 1px solid var(--color-white);
  }
}

/* Мобільна версія */
@media (width <= 767px) {
  /* Бургер з'являється */
  .mobile-nav-container .burger-menu {
    display: flex;
    width: var(--menu-size-xl);
    height: auto;
    min-width: 3.7rem;
    max-width: 3.7rem;
    min-height: 3.7rem;
    max-height: 3.7rem;
    padding: var(--menu-size-xs) 0;
    position: static;
    align-self: center;
    flex-shrink: 0;
    flex-grow: 0;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid var(--color-border-light);
    box-sizing: border-box;
  }

  .burger-menu__dropdown {
    bottom: max(70px, calc(70px + env(safe-area-inset-bottom, 0px)));
  }
}

/* iOS Safari фікси */
@supports (-webkit-touch-callout: none) {
  .burger-menu__dropdown {
    max-height: 80dvh;
  }

  @media (width <= 767px) {
    .burger-menu__dropdown {
      bottom: max(70px, calc(70px + env(safe-area-inset-bottom, 0px)));
      max-height: calc(100dvh - 70px - env(safe-area-inset-bottom, 0px) - env(safe-area-inset-top, 0px));
      -webkit-overflow-scrolling: touch;
    }

    @supports (height: 100dvh) {
      .burger-menu__dropdown {
        max-height: calc(100dvh - 70px - env(safe-area-inset-bottom, 0px) - env(safe-area-inset-top, 0px));
      }
    }
  }
}

/* Світла тема */
[data-theme="light"] .burger-menu__dropdown {
  background: rgba(0, 0, 0, 0.85);
}

/* Темна тема */
[data-theme="dark"] .burger-menu__dropdown {
  background: rgba(0, 0, 0, 0.9);
}