/* ==========================================================================
   شمس — layout.css
   الترويسة، التنقّل، ترويسات الصفحات، الشبكات، التذييل
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. الترويسة والتنقّل
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.site-header.is-stuck {
  background: color-mix(in srgb, var(--paper) 96%, transparent);
  border-bottom-color: var(--line);
  box-shadow: 0 6px 26px -20px rgba(27, 28, 51, 0.45);
}

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  justify-content: space-between;
}

/* الشعار */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  width: 30px;
  height: 41px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.32rem;
  color: var(--navy);
  letter-spacing: -0.01em;
}

.brand-sub {
  font-size: 0.68rem;
  color: var(--muted-2);
  letter-spacing: 0.01em;
  font-weight: 400;
}

/* قائمة التنقّل */
.nav {
  margin-inline-start: auto;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: clamp(0.35rem, 0.1rem + 0.85vw, 1.05rem);
  margin: 0;
  padding: 0;
}

.nav-list li {
  margin: 0;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.55rem 0.35rem;
  font-size: 0.945rem;
  font-weight: 400;
  color: var(--navy-700);
  text-decoration: none;
  white-space: nowrap;
}

.nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 0.35rem;
  bottom: 0.18rem;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: inline-end;
  transition: transform var(--dur) var(--ease-out);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--navy);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: inline-start;
}

.nav-link[aria-current="page"] {
  color: var(--navy);
  font-weight: 500;
}

.header-cta {
  flex-shrink: 0;
}

/* زر القائمة للجوال */
.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line-2);
  background: transparent;
  border-radius: var(--r-sm);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.nav-toggle:hover {
  background: var(--white);
  border-color: var(--navy-200);
}

.nav-toggle-bars {
  position: relative;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: background 0.2s var(--ease);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.32s var(--ease-out);
}

.nav-toggle-bars::before {
  top: -6.5px;
}
.nav-toggle-bars::after {
  top: 6.5px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
  transform: translateY(-6.5px) rotate(-45deg);
}

@media (max-width: 1080px) {
  .header-inner .header-cta {
    display: none;
  }
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 0;
    background: var(--paper);
    padding: 1.5rem var(--gutter) 3rem;
    overflow-y: auto;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease-out),
      visibility 0.3s;
  }

  .nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list li {
    border-bottom: 1px solid var(--line);
  }

  .nav-link {
    display: block;
    padding: 1.05rem 0.2rem;
    font-size: 1.12rem;
    font-family: var(--font-display);
  }

  .nav-link::after {
    display: none;
  }

  .nav-link[aria-current="page"] {
    color: var(--lime-700);
  }

  .nav-mobile-cta {
    margin-top: 1.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
}

@media (min-width: 981px) {
  .nav .nav-mobile-cta {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   2. ترويسة الصفحة الداخلية
   -------------------------------------------------------------------------- */
.page-head {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding-block: clamp(3.25rem, 2rem + 5vw, 6rem) clamp(3rem, 1.8rem + 4.4vw, 5.25rem);
  overflow: hidden;
  isolation: isolate;
}

.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      120% 90% at 88% -10%,
      color-mix(in srgb, var(--navy-500) 62%, transparent),
      transparent 62%
    ),
    linear-gradient(200deg, var(--navy-700), var(--navy-900));
  z-index: -2;
}

.page-head-art {
  position: absolute;
  inset-block: 0;
  inset-inline-end: -6%;
  width: min(520px, 58%);
  opacity: 0.5;
  z-index: -1;
  pointer-events: none;
}

.page-head .wrap {
  position: relative;
}

.page-head h1 {
  color: var(--white);
  max-width: 20ch;
  margin-bottom: 0.5rem;
}

.page-head .lead {
  color: color-mix(in srgb, var(--white) 76%, var(--navy-300));
  max-width: 62ch;
}

/* فتات الخبز */
.breadcrumb {
  margin-bottom: 1.5rem;
}

.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  font-size: var(--fs-xs);
}

.breadcrumb li {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: color-mix(in srgb, var(--white) 62%, var(--navy-300));
}

.breadcrumb li + li::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--lime);
  flex-shrink: 0;
}

.breadcrumb a {
  color: color-mix(in srgb, var(--white) 72%, var(--navy-300));
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--lime-300);
}

.breadcrumb [aria-current="page"] {
  color: var(--white);
}

/* --------------------------------------------------------------------------
   3. الشبكات
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: clamp(1.1rem, 0.5rem + 1.7vw, 2rem);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

@media (max-width: 940px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* تخطيط عمودين: نص + جانب */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  align-items: center;
}

.split-text {
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}

.split-top {
  align-items: start;
}

@media (max-width: 900px) {
  .split,
  .split-text {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ترويسة القسم */
.section-head {
  max-width: 68ch;
  margin-bottom: clamp(2.1rem, 1.2rem + 2.6vw, 3.6rem);
}

.section-head.is-center {
  margin-inline: auto;
  text-align: center;
}

.section-head h2 {
  margin-bottom: 0.55rem;
}

.section-head .lead {
  margin-top: 0.85rem;
}

.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: clamp(2.1rem, 1.2rem + 2.6vw, 3.6rem);
}

.section-head-row .section-head {
  margin-bottom: 0;
}

/* خلفيات الأقسام */
.bg-white {
  background: var(--white);
}
.bg-paper2 {
  background: var(--paper-2);
}
.bg-sand {
  background: var(--sand);
}

.bg-navy {
  background: var(--navy);
  color: color-mix(in srgb, var(--white) 82%, var(--navy-200));
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.bg-navy::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      100% 80% at 12% 0%,
      color-mix(in srgb, var(--navy-500) 52%, transparent),
      transparent 60%
    ),
    linear-gradient(160deg, var(--navy-700), var(--navy-900));
  z-index: -1;
}

/* --------------------------------------------------------------------------
   4. التذييل
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--navy-900);
  color: color-mix(in srgb, var(--white) 72%, var(--navy-300));
  padding-block: clamp(3rem, 1.8rem + 4vw, 4.75rem) 0;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    130% 100% at 100% 0%,
    color-mix(in srgb, var(--navy-700) 78%, transparent),
    transparent 58%
  );
  z-index: -1;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: clamp(1.75rem, 1rem + 2.6vw, 3.25rem);
  padding-bottom: clamp(2.25rem, 1.5rem + 2vw, 3.25rem);
}

@media (max-width: 900px) {
  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .footer-top {
    grid-template-columns: minmax(0, 1fr);
  }
}

.footer-brand .brand-name {
  color: var(--white);
  font-size: 1.45rem;
}

.footer-brand .brand-sub {
  color: color-mix(in srgb, var(--white) 58%, var(--navy-300));
}

.footer-tag {
  margin-top: 1.15rem;
  max-width: 34ch;
  font-size: var(--fs-sm);
  line-height: 1.85;
  color: color-mix(in srgb, var(--white) 68%, var(--navy-300));
}

.footer-col h3 {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--lime-300);
  margin-bottom: 1.15rem;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col li {
  margin-bottom: 0.6rem;
}

.footer-col a,
.footer-contact a {
  color: color-mix(in srgb, var(--white) 74%, var(--navy-300));
  text-decoration: none;
  font-size: var(--fs-sm);
}

.footer-col a:hover,
.footer-contact a:hover {
  color: var(--lime-300);
}

.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--fs-sm);
  line-height: 1.9;
}

.footer-contact li {
  margin-bottom: 0.6rem;
  color: color-mix(in srgb, var(--white) 74%, var(--navy-300));
}

.footer-bottom {
  border-top: 1px solid color-mix(in srgb, var(--white) 12%, transparent);
  padding-block: 1.6rem 1.9rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.75rem;
  font-size: var(--fs-xs);
  color: color-mix(in srgb, var(--white) 58%, var(--navy-300));
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-legal li {
  margin: 0;
}

.footer-legal a {
  color: color-mix(in srgb, var(--white) 62%, var(--navy-300));
  text-decoration: none;
  font-size: var(--fs-xs);
}

.footer-legal a:hover {
  color: var(--lime-300);
}