/* Mobile menu shell, burger button and mobile accordion groups. */

.top-menu-burger {
  display: none;
  width: 46px;
  height: 44px;
  flex: 0 0 46px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid rgba(255, 245, 220, .22);
  border-radius: 13px;
  color: var(--text);
  background: rgba(244, 241, 223, .025);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .20);
  cursor: pointer;
  padding: 0;
  transition: border-color .22s var(--ease), background-color .22s var(--ease), box-shadow .22s var(--ease);
}

.top-menu-burger span {
  width: 18px;
  height: 1px;
  display: block;
  background: currentColor;
  box-shadow: 0 0 12px rgba(255, 236, 190, .34);
  transition: opacity .25s var(--ease), rotate .25s var(--ease), translate .25s var(--ease);
}

.top-menu-burger:hover,
.top-menu-burger:focus-visible {
  border-color: rgba(255, 245, 220, .38);
  background: rgba(244, 241, 223, .045);
}

.top-menu-burger[aria-expanded="true"] span:nth-child(1) { translate: 0 6px; rotate: 45deg; }
.top-menu-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.top-menu-burger[aria-expanded="true"] span:nth-child(3) { translate: 0 -6px; rotate: -45deg; }

.top-menu-mobile {
  position: absolute;
  left: var(--page-gutter);
  right: var(--page-gutter);
  top: calc(100% + 10px);
  z-index: 78;
  border-radius: 18px;
  padding: 12px 12px calc(12px + var(--mobile-safe-bottom));
  max-height: calc(100dvh - var(--mobile-menu-top-space) - var(--mobile-safe-bottom));
  overflow-x: hidden;
  background: radial-gradient(circle at 74% 12%, var(--tech-line-soft), transparent 14rem), linear-gradient(135deg, rgba(31, 36, 30, .94), rgba(16, 20, 16, .92) 58%, rgba(25, 31, 25, .94));
  border: 1px solid rgba(244, 241, 223, .16);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .46), inset 0 1px 0 rgba(255, 255, 255, .10);
  backdrop-filter: blur(16px) saturate(118%);
}

.top-menu-mobile[hidden],
.top-menu-mobile-group[hidden] { display: none !important; }

.top-menu-mobile-nav { display: grid; gap: 7px; }
.top-menu-mobile-section { display: grid; gap: 5px; }

.top-menu-mobile-main,
.top-menu-mobile-trigger,
.top-menu-mobile-sub {
  width: 100%;
  display: grid;
  align-content: center;
  gap: 4px;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 13px;
  color: rgba(255, 248, 232, .94);
  font-size: .94rem;
  font-weight: 500;
  letter-spacing: .018em;
  text-transform: none;
  text-align: left;
  text-decoration: none;
  background: rgba(244, 241, 223, .020);
  border: 1px solid rgba(244, 241, 223, .045);
  transition: color .2s var(--ease), background-color .2s var(--ease), border-color .2s var(--ease), text-shadow .2s var(--ease);
  font-family: var(--font-menu);
}

.top-menu-mobile-trigger {
  grid-template-columns: 1fr auto;
  align-items: center;
  cursor: pointer;
}

.top-menu-mobile-main:hover,
.top-menu-mobile-main:focus-visible,
.top-menu-mobile-trigger:hover,
.top-menu-mobile-trigger:focus-visible,
.top-menu-mobile-sub:hover,
.top-menu-mobile-sub:focus-visible {
  color: #f4f1df;
  background: rgba(8, 10, 8, .36);
  border-color: var(--tech-line);
  text-shadow: 0 0 16px rgba(245, 242, 223, .20);
}

.top-menu-mobile-group {
  display: grid;
  gap: 5px;
  padding: 0 0 3px 14px;
}

.top-menu-mobile-sub {
  font-family: var(--font-ui);
  min-height: 58px;
  font-size: .86rem;
  color: rgba(255, 248, 232, .88);
  background: rgba(244, 241, 223, .012);
  letter-spacing: .01em;
}

.top-menu-mobile-sub span {
  display: block;
  color: #fffbea;
  font-family: var(--font-menu);
  font-size: .90rem;
  font-weight: 600;
  line-height: 1.2;
}

.top-menu-mobile-sub small {
  display: block;
  max-width: 94%;
  margin-top: 4px;
  color: rgba(255, 248, 232, .72);
  font-family: var(--font-ui);
  font-size: .73rem;
  font-weight: 400;
  line-height: 1.34;
  letter-spacing: 0;
}

.top-menu-mobile-overview {
  border-color: var(--tech-line-soft);
  background: rgba(199, 204, 189, .032);
}