/* ============================================================
   04-header.css — FIX: .is-open بدل [hidden]
   ============================================================ */
.site-header {
  position: sticky; top: 0; left: 0; right: 0; z-index: 1000;
  background: #fff;
  border-bottom: 1px solid #f3f4f6;
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
  transition: background .25s, box-shadow .25s;
}
.header-inner { height: 80px; max-width:1280px; margin:0 auto; padding:0 24px; display: flex; align-items: center; justify-content:space-between; gap: 32px; }
.site-header.scrolled {
  background: #fff;
  backdrop-filter: none;
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
}
.logo { display: flex; align-items: center; height: 100%; text-decoration: none; }
.logo-img { height: 56px; width: auto; display: block; object-fit: contain; transition: opacity .3s; }
.site-header:not(.scrolled) .logo-main { color: var(--clr-dark); }
.site-header:not(.scrolled) .logo-sub  { color: var(--clr-muted); }

.primary-nav { flex: 1; display: none; }
@media(min-width:1024px){ .primary-nav { display: block; } }
.primary-nav ul { display: flex; gap: 40px; justify-content: center; }
.nav-link {
  font-family: var(--ff-body); font-weight: 500; font-size: 14px;
  color: var(--clr-text); padding: 0 0 4px; text-decoration: none;
  border-bottom: 2px solid transparent; border-radius: 0;
  transition: color .2s, border-color .2s;
}
.nav-link:hover, .nav-link.active { color: var(--clr-accent-dark); border-bottom-color: var(--clr-accent-dark); }
.site-header:not(.scrolled) .nav-link { color: var(--clr-text); }
.site-header:not(.scrolled) .nav-link:hover,
.site-header:not(.scrolled) .nav-link.active { color: var(--clr-accent-dark); }

.header-cta { display: none; gap: 10px; flex-shrink: 0; }
@media(min-width:900px){ .header-cta { display: flex; } }
.header-cta .btn { padding: 10px 24px; font-size: 14px; border-radius:6px; letter-spacing:.04em; }
.header-cta .btn--outline { display:none; }
.site-header:not(.scrolled) .header-cta .btn--outline { color: var(--clr-accent-dark); border-color: var(--clr-accent); }
.site-header:not(.scrolled) .header-cta .btn--outline:hover { background: var(--clr-accent); border-color: var(--clr-accent); color:var(--clr-dark); }

.hamburger { display: flex; flex-direction: column; gap: 5px; padding: 8px; margin-left: auto; background: none; border: none; cursor: pointer; }
@media(min-width:1024px){ .hamburger { display: none; } }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--clr-dark); border-radius: 2px; transition: all .3s; }
.site-header:not(.scrolled) .hamburger span { background: var(--clr-dark); }
.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 NAV — starts below header, no body/html touching
   ============================================================ */
.mobile-nav {
  position: fixed;
  top: var(--header-h); left: 0; right: 0; bottom: 0;
  z-index: 998;
  background: #fff;
  border-top: 3px solid var(--clr-red);
  box-shadow: 0 12px 32px rgba(0,0,0,.15);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  visibility: hidden;
  transition: opacity .28s ease, transform .28s ease, visibility 0s linear .28s;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  visibility: visible;
  transition: opacity .28s ease, transform .28s ease, visibility 0s linear 0s;
}


.mobile-nav ul { display: flex; flex-direction: column; margin: 0; padding: 0; list-style: none; }
.mobile-nav li:not(:last-child)::after {
  content: ''; display: block; height: 1px; margin: 0 24px;
  background: linear-gradient(to right, rgba(1,61,116,.18), rgba(1,61,116,.06));
}
.mobile-nav .nav-link {
  display: flex; align-items: center;
  padding: 15px 24px; text-decoration: none;
  font-family: var(--ff-display); font-size: 15px; font-weight: 600;
  color: #1a1a1a; letter-spacing: .01em;
  transition: color .2s, background .2s, padding-left .2s;
}
.mobile-nav .nav-link::after {
  content: '›'; margin-left: auto; font-size: 22px; line-height: 1;
  color: var(--clr-red); opacity: 0; transform: translateX(-6px);
  transition: opacity .2s, transform .2s;
}
.mobile-nav .nav-link:hover { color: var(--clr-red); background: rgba(1,61,116,.06); padding-left: 32px; }
.mobile-nav .nav-link:hover::after { opacity: 1; transform: translateX(0); }
.mobile-nav .nav-link.active { color: var(--clr-red); font-weight: 700; }

.mobile-cta-row { display: flex; gap: 12px; padding: 16px 24px 24px; border-top: 1px solid rgba(0,0,0,.07); margin-top: 4px; }
.mobile-cta-row::before { display: none; }
.mobile-nav li.mobile-cta-row::after { display: none; }
.mobile-cta-row .btn { flex: 1; justify-content: center; font-size: 14px; padding: 11px 16px; }

@media (max-width: 1023px) {
  .btn--pulse { animation: none !important; box-shadow: none !important; transform: none !important; }
}