/* Full-screen navigation overlay — drawer slides up from bottom */

.overlay-menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  pointer-events: none;
  visibility: hidden;
  /* Let drawer + scrim finish before hiding subtree (otherwise close animation never shows). */
  transition: visibility 0s linear var(--drawer-duration);
  /* Backdrop dim */
  --overlay-scrim: rgba(0, 0, 0, 0.45);
  --drawer-duration: 0.52s;
  --drawer-ease: cubic-bezier(0.32, 0.72, 0, 1);
  --scrim-duration: 0.38s;
}

.overlay-menu::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  opacity: 0;
  transition: opacity var(--scrim-duration) ease;
  z-index: 0;
}

.overlay-menu.open {
  pointer-events: auto;
  visibility: visible;
  transition: visibility 0s;
}

.overlay-menu.open::before {
  opacity: 1;
}

.overlay-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 100%;
  padding: 2.2vh 1.5vw 4vh;
  display: flex;
  flex-direction: column;
  background: #000000;
  box-shadow: 0 -12px 60px rgba(0, 0, 0, 0.45);
  transform: translate3d(0, 100%, 0);
  transition: transform var(--drawer-duration) var(--drawer-ease);
  will-change: transform;
}

.overlay-menu.open .overlay-inner {
  transform: translate3d(0, 0, 0);
}

@media (prefers-reduced-motion: reduce) {
  .overlay-menu {
    --drawer-duration: 0.2s;
    --scrim-duration: 0.15s;
  }

  .overlay-menu::before {
    transition-duration: var(--scrim-duration);
  }

  .overlay-inner {
    transform: none;
    transition: opacity 0.2s ease;
    will-change: opacity;
    box-shadow: none;
  }

  .overlay-menu:not(.open) .overlay-inner {
    opacity: 0;
  }

  .overlay-menu.open .overlay-inner {
    opacity: 1;
  }
}

/* Close + links move as one block, vertically centered (avoids huge gap above nav) */
.overlay-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: clamp(12px, 2.5vh, 28px);
}

.overlay-top {
  display: flex;
  justify-content: center;
  flex-shrink: 0;
}

.menu-close {
  min-width: 48px;
  min-height: 48px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #ffffff;
  font-size: 36px;
  line-height: 1;
  cursor: pointer;
}

.overlay-nav {
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  flex: 0 0 auto;
}

.overlay-link {
  color: #ffffff;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 0.9;
  font-size: clamp(48px, 10vw, 140px);
  transition: transform 0.2s ease;
}

.overlay-link:hover {
  transform: scale(1.02);
}