/* ================================================================
   JESSY SAFETY INVISIBLE GRILLS
   Header & Navigation — header.css
   ================================================================ */

/* ── Site Header ────────────────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--grey-200);
  transition: all var(--t);
}

#site-header.scrolled {
  box-shadow: 0 4px 20px rgba(13,27,62,.12);
  border-bottom-color: transparent;
}

/* ── Nav Inner ──────────────────────────────────────────────────── */
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* ── Logo ───────────────────────────────────────────────────────── */
.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.nav-logo img {
  height: 54px;
  width: auto;
  display: block;
  transition: transform var(--t);
}
.nav-logo:hover img { transform: scale(1.03); }

/* ── Nav Links ──────────────────────────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
  flex: 1;
  justify-content: center;
}

.nav-links a,
.nav-dropdown > .nav-toggle {
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--grey-700);
  border-radius: var(--r-sm);
  transition: all var(--tf);
  position: relative;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font-sans);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-dropdown:hover > .nav-toggle {
  color: var(--blue);
  background: var(--sky);
}

.nav-links a.active {
  color: var(--blue);
  font-weight: 600;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
}

/* ── Dropdown ───────────────────────────────────────────────────── */
.nav-dropdown { position: relative; }

.dropdown-chevron {
  font-size: 0.65rem;
  transition: transform var(--t);
}
.nav-dropdown:hover .dropdown-chevron { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--white);
  border: 1px solid var(--grey-200);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-xl);
  min-width: 240px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s var(--ease);
  z-index: 100;
  padding: 0.5rem;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--grey-700);
  border-radius: var(--r-sm);
  transition: all var(--tf);
}
.dropdown-menu a::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--blue);
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity var(--tf);
}
.dropdown-menu a:hover {
  color: var(--blue);
  background: var(--sky);
}
.dropdown-menu a:hover::before { opacity: 1; }

/* ── Nav CTAs ───────────────────────────────────────────────────── */
.nav-ctas {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.nav-ctas .btn { font-size: 0.82rem; padding: 8px 18px; }

/* ── Hamburger ──────────────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: var(--r-sm);
  border: 1px solid var(--grey-200);
  background: var(--white);
  flex-shrink: 0;
  cursor: pointer;
  transition: all var(--tf);
}
.hamburger:hover { background: var(--grey-100); }
.hamburger span {
  display: block;
  width: 20px; height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Menu ────────────────────────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--white);
  z-index: 999;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
}
.mobile-menu.open { transform: translateX(0); }

.mobile-menu-inner {
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy);
  border-bottom: 1px solid var(--grey-100);
  transition: color var(--tf);
}
.mobile-nav-link:hover { color: var(--blue); }

.mobile-sub-links {
  display: flex;
  flex-direction: column;
  padding: 0.5rem 0 0.5rem 1rem;
  border-bottom: 1px solid var(--grey-100);
}
.mobile-sub-links a {
  padding: 0.6rem 0;
  font-size: 0.92rem;
  color: var(--grey-700);
  border-bottom: 1px dashed var(--grey-100);
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-sub-links a::before {
  content: '→';
  font-size: 0.75rem;
  color: var(--blue);
}
.mobile-sub-links a:hover { color: var(--blue); }

.mobile-cta-section {
  padding: 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.mobile-cta-section .btn { width: 100%; justify-content: center; padding: 15px; font-size: 0.95rem; }

.mobile-contact-strip {
  padding: 1.5rem 0;
  border-top: 1px solid var(--grey-100);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.mobile-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--grey-700);
}
.mobile-contact-icon {
  width: 36px; height: 36px;
  background: var(--sky);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

/* ── Responsive Breakpoints ─────────────────────────────────────── */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-ctas  { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }
}

@media (max-width: 768px) {
  .nav-inner { padding: 0 1.25rem; }
  .nav-logo img { height: 46px; }
}

@media (max-width: 480px) {
  .nav-logo img { height: 42px; }
}