/* Mobile hamburger + drawer (≤880px). Uses page :root tokens: --line, --line-strong, --ink-0, --ink-1, --bg-0 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.nav-wrap {
  z-index: 122;
}

.nav-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0 0 0 8px;
  padding: 0;
  flex-shrink: 0;
  border-radius: 12px;
  border: 1px solid var(--line, rgba(255, 255, 255, 0.08));
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink-0, #fff);
  transition: background 0.15s ease;
}
.nav-menu-btn:hover {
  background: rgba(255, 255, 255, 0.08);
}
.nav-menu-bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 20px;
  height: 16px;
}
.nav-menu-bars span {
  display: block;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
  transform-origin: center;
}
.nav-menu-btn.is-open .nav-menu-bars span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-menu-btn.is-open .nav-menu-bars span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-menu-btn.is-open .nav-menu-bars span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile-backdrop {
  position: fixed;
  inset: 0;
  z-index: 120;
  background: rgba(3, 8, 26, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.nav-mobile-backdrop.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-mobile-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 92vw);
  z-index: 121;
  background: rgba(8, 14, 36, 0.98);
  border-left: 1px solid var(--line-strong, rgba(255, 255, 255, 0.14));
  box-shadow: -16px 0 48px rgba(0, 0, 0, 0.45);
  padding: calc(88px + env(safe-area-inset-top, 0px)) 20px calc(28px + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  pointer-events: none;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav-mobile-panel.is-open {
  transform: translateX(0);
  pointer-events: auto;
}

.nav-mobile-panel a {
  display: block;
  padding: 14px 16px;
  margin: 0 -8px;
  color: var(--ink-1, #dde3f2);
  font-size: 16px;
  font-weight: 500;
  border-radius: 12px;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-mobile-panel a:hover,
.nav-mobile-panel a:focus-visible {
  color: var(--ink-0, #fff);
  background: rgba(255, 255, 255, 0.06);
  outline: none;
}

.nav-mobile-install {
  margin-top: 20px !important;
  width: 100%;
  justify-content: center;
  box-sizing: border-box;
  display: inline-flex !important;
  padding: 11px 18px !important;
}

@media (max-width: 880px) {
  .nav-links {
    display: none !important;
  }
  .nav-cta {
    display: none !important;
  }
  .nav > .btn-primary {
    display: none !important;
  }
  .nav-cta-group .btn-primary {
    display: none !important;
  }
  .nav-menu-btn {
    display: inline-flex !important;
  }
}

/* Light theme (compare + article pages) */
[data-theme="light"] .nav-mobile-backdrop {
  background: rgba(250, 250, 252, 0.78);
}
[data-theme="light"] .nav-mobile-panel {
  background: rgba(255, 255, 255, 0.98);
  border-left-color: var(--line-strong);
  box-shadow: -16px 0 40px rgba(10, 16, 36, 0.12);
}
[data-theme="light"] .nav-mobile-panel a {
  color: var(--ink-1);
}
[data-theme="light"] .nav-mobile-panel a:hover,
[data-theme="light"] .nav-mobile-panel a:focus-visible {
  color: var(--ink-0);
  background: rgba(10, 16, 36, 0.05);
}
[data-theme="light"] .nav-menu-btn {
  background: rgba(10, 16, 36, 0.04);
  border-color: var(--line);
  color: var(--ink-0);
}
[data-theme="light"] .nav-menu-btn:hover {
  background: rgba(10, 16, 36, 0.08);
}

/* Compare article pages: gradient install in drawer (matches header CTA) */
.compare-page .nav-mobile-panel a.btn-primary.nav-mobile-install {
  background: var(--grad-cta);
  color: white;
  box-shadow: 0 8px 24px rgba(255, 90, 40, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}