/* =========================================================================
   layout.css
   تخطيط الهيكل العام: الرأس (Header) والتذييل (Footer) وشبكات الصفحات
   ========================================================================= */

/* ------------------------------------------------------------------- */
/* الرأس العلوي */
/* ------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: saturate(180%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-heading);
}

.brand img {
  height: 48px;
  width: auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.brand-text strong {
  color: var(--color-primary-dark);
  font-size: 17px;
}

.brand-text span {
  color: var(--color-text-muted);
  font-size: 12px;
}

/* التنقل الرئيسي */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.main-nav > ul {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.main-nav .nav-item {
  position: relative;
}

.main-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  color: var(--color-text);
  font-size: 15px;
}

.main-nav .nav-link:hover,
.main-nav .nav-item.active .nav-link {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.main-nav .nav-link .chevron {
  font-size: 10px;
  transition: transform var(--transition-fast);
}

/* القوائم المنسدلة */
.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 280px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-base);
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-item:hover .chevron {
  transform: rotate(180deg);
}

.dropdown li a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
}

.dropdown li a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.dropdown .dropdown-group-title {
  padding: 8px 14px 4px;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

/* زر قائمة الجوال */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  width: 26px;
  height: 3px;
  background: var(--color-primary-dark);
  border-radius: 2px;
  transition: var(--transition-base);
}

/* ------------------------------------------------------------------- */
/* التذييل */
/* ------------------------------------------------------------------- */
.site-footer {
  background: var(--color-bg-dark);
  color: #C7D5DB;
  padding-top: var(--space-7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: var(--space-3);
}

.footer-col p,
.footer-col li {
  font-size: 14px;
  color: #A7B7BF;
  margin-bottom: var(--space-2);
}

.footer-col a {
  color: #A7B7BF;
}

.footer-col a:hover {
  color: var(--color-accent);
}

.footer-brand img {
  height: 44px;
  margin-bottom: var(--space-3);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  font-size: 13px;
  color: #7E8F97;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.footer-bottom a {
  color: #A7B7BF;
}

/* ------------------------------------------------------------------- */
/* أزرار وشارات مشتركة على مستوى Layout */
/* ------------------------------------------------------------------- */
.breadcrumb {
  padding: var(--space-3) 0;
  font-size: 13px;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.breadcrumb .current {
  color: var(--color-primary-dark);
  font-weight: 700;
}

/* ------------------------------------------------------------------- */
/* استجابة (Responsive) */
/* ------------------------------------------------------------------- */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-base);
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .main-nav > ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    display: none;
    margin-right: var(--space-3);
  }

  .nav-item.open .dropdown {
    display: block;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}