/* ==========================================================================
   Mobile Hamburger Menu & Drawer Styles
   ========================================================================== */

/* Header fix: Prevent header backdrop-filter from creating a containing block
   that restricts fixed-positioned overlay and mobile drawer */
header.mobile-nav-open,
header:has(.hamburger-btn.is-active),
header:has(.hamburger-btn.open),
header:has(.mobile-nav-menu.is-active),
header:has(.mobile-nav-menu.open) {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* Hamburger Button */
.hamburger-btn {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 12px;
  cursor: pointer;
  z-index: 10001;
  position: relative;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.hamburger-btn:hover {
  background-color: rgba(241, 245, 249, 0.8);
  border-color: #cbd5e1;
}

.hamburger-btn:focus-visible {
  outline: 2px solid #008080;
  outline-offset: 2px;
}

/* Three spans / bars */
.hamburger-btn .bar,
.hamburger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #1e293b;
  border-radius: 2px;
  transform-origin: center;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease, background-color 0.3s ease;
}

.hamburger-btn .bar:not(:last-child),
.hamburger-btn span:not(:last-child) {
  margin-bottom: 5px;
}

/* Morphing Three Bars into 'X' when .is-active or .open */
.hamburger-btn.is-active .bar:nth-child(1),
.hamburger-btn.open .bar:nth-child(1),
.hamburger-btn.is-active span:nth-child(1),
.hamburger-btn.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.is-active .bar:nth-child(2),
.hamburger-btn.open .bar:nth-child(2),
.hamburger-btn.is-active span:nth-child(2),
.hamburger-btn.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger-btn.is-active .bar:nth-child(3),
.hamburger-btn.open .bar:nth-child(3),
.hamburger-btn.is-active span:nth-child(3),
.hamburger-btn.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Overlay / Backdrop */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  z-index: 9998;
  pointer-events: none;
}

.mobile-nav-overlay.is-active,
.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Mobile Navigation Container (<nav>) */
.mobile-nav-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: min(85vw, 340px);
  height: 100vh;
  height: 100dvh;
  background: #ffffff;
  color: #0f172a;
  border-right: 1px solid #e2e8f0;
  box-shadow: 10px 0 35px rgba(0, 0, 0, 0.12);
  transform: translateX(-100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  padding: 5rem 1.25rem 2rem 1.25rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  z-index: 9999;
}

/* Active State: Slides Menu Into View */
.mobile-nav-menu.is-active,
.mobile-nav-menu.open {
  transform: translateX(0);
}

/* Drawer Header, Links & Footer */
.mobile-nav-header {
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: #008080;
}

.mobile-nav-title {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: #0f172a;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.mobile-nav-link {
  display: block;
  padding: 0.8rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: #1e293b;
  text-decoration: none;
  border-radius: 14px;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.mobile-nav-link:hover {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #008080;
}

.mobile-nav-link.active {
  color: #008080;
  background: rgba(0, 128, 128, 0.08);
  border-color: rgba(0, 128, 128, 0.2);
}

.mobile-nav-footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid #f1f5f9;
}

.mobile-quote-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.85rem 1.25rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff !important;
  background: #008080;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 10px 25px -5px rgba(0, 128, 128, 0.35);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.mobile-quote-btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

/* Hide all mobile navigation elements on desktop screens (>= 1024px) */
@media (min-width: 1024px) {
  .hamburger-btn,
  .mobile-nav-menu,
  .mobile-nav-overlay {
    display: none !important;
  }
}