/* ==========================================================================
   LAMSET NOOR STUDIO — header.css
   Sticky header, desktop nav, controls, full-screen animated mobile menu
   ========================================================================== */

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-header);
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: height var(--t-mid) var(--ease-lux),
              background var(--t-mid) var(--ease-soft),
              border-color var(--t-mid),
              backdrop-filter var(--t-mid);
  border-block-end: 1px solid transparent;
}

.site-header.is-stuck {
  height: 68px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(22px) saturate(150%);
  border-block-end-color: var(--line);
}

.site-header.is-hidden { transform: translateY(-104%); }

.site-header__inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* ---------- Brand ---------- */
.brand {
  display: flex;
  align-items: center;
  gap: .85rem;
  flex-shrink: 0;
  z-index: 2;
}

.brand__mark {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--line);
  transition: transform var(--t-mid) var(--ease-back), box-shadow var(--t-mid);
}
.brand:hover .brand__mark { transform: rotate(-8deg) scale(1.06); box-shadow: var(--glow); }

.site-header.is-stuck .brand__mark { width: 38px; height: 38px; }

.brand__text { display: flex; flex-direction: column; line-height: 1.05; }

.brand__name {
  font-family: var(--font-display);
  font-size: 1.22rem;
  letter-spacing: .1em;
  background: var(--gold-grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}
html[lang='ar'] .brand__name { font-size: 1.18rem; letter-spacing: 0; }

.brand__tag {
  font-size: .56rem;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}
html[lang='ar'] .brand__tag { letter-spacing: .12em; text-transform: none; font-size: .64rem; }

/* ---------- Desktop nav ---------- */
.nav { display: flex; align-items: center; gap: clamp(.5rem, 1.6vw, 1.6rem); }

.nav__link {
  position: relative;
  padding: .5rem .2rem;
  font-size: .78rem;
  font-weight: 400;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--text-2);
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease-soft);
}
html[lang='ar'] .nav__link { letter-spacing: .02em; text-transform: none; font-size: .95rem; font-weight: 500; }

.nav__link::after {
  content: '';
  position: absolute;
  inset-block-end: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 1px;
  background: var(--gold-grad);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--t-mid) var(--ease-lux);
}
html[dir='rtl'] .nav__link::after { transform-origin: left; }

.nav__link:hover { color: var(--text); }
.nav__link:hover::after { transform: scaleX(1); transform-origin: left; }
html[dir='rtl'] .nav__link:hover::after { transform-origin: right; }

.nav__link.is-active { color: var(--gold-text); }
.nav__link.is-active::after { transform: scaleX(1); }

/* ---------- Controls ---------- */
.hdr-controls { display: flex; align-items: center; gap: .55rem; z-index: 2; }

.ctrl {
  position: relative;
  height: 38px;
  min-width: 38px;
  padding-inline: .5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  color: var(--text-2);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  transition: all var(--t-fast) var(--ease-lux);
  overflow: hidden;
}
.ctrl:hover {
  color: var(--gold-text);
  border-color: var(--gold-400);
  transform: translateY(-2px);
}
.ctrl svg { width: 17px; height: 17px; }

/* Lang toggle — reads "ENG" or "عربي" depending on where it takes you */
.ctrl--lang {
  min-width: 64px;
  padding-inline: .85rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--gold-text);
  border-color: var(--line);
}
html[lang='ar'] .ctrl--lang { font-size: .74rem; letter-spacing: .1em; }
html[lang='en'] .ctrl--lang [data-lang-face] { font-family: var(--font-ar-body); font-size: .92rem; letter-spacing: 0; }

/* Theme toggle: sun/moon crossfade */
.ctrl--theme .ctrl__ico {
  position: absolute;
  display: grid;
  place-items: center;
  transition: opacity var(--t-mid) var(--ease-lux), transform var(--t-mid) var(--ease-back);
}
html[data-theme='dark'] .ctrl--theme .ctrl__ico--sun { opacity: 1; transform: rotate(0) scale(1); }
html[data-theme='dark'] .ctrl--theme .ctrl__ico--moon { opacity: 0; transform: rotate(-90deg) scale(.4); }
html[data-theme='light'] .ctrl--theme .ctrl__ico--sun { opacity: 0; transform: rotate(90deg) scale(.4); }
html[data-theme='light'] .ctrl--theme .ctrl__ico--moon { opacity: 1; transform: rotate(0) scale(1); }

.hdr-cta { margin-inline-start: .3rem; }

/* ---------- Burger ---------- */
.burger {
  display: none;
  position: relative;
  width: 44px;
  height: 38px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-soft);
  background: color-mix(in srgb, var(--surface) 60%, transparent);
  z-index: 2;
}

.burger__box {
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  translate: -50% -50%;
  width: 19px;
  height: 12px;
}
html[dir='rtl'] .burger__box { translate: 50% -50%; }

.burger__bar {
  position: absolute;
  inset-inline-start: 0;
  width: 100%;
  height: 1.5px;
  border-radius: 2px;
  background: var(--gold-400);
  transition: transform var(--t-mid) var(--ease-lux), opacity .2s var(--ease-soft), width var(--t-mid) var(--ease-lux);
}
.burger__bar:nth-child(1) { inset-block-start: 0; }
.burger__bar:nth-child(2) { inset-block-start: 5.25px; width: 70%; }
.burger__bar:nth-child(3) { inset-block-start: 10.5px; }

.burger:hover .burger__bar:nth-child(2) { width: 100%; }

.burger.is-open .burger__bar:nth-child(1) { transform: translateY(5.25px) rotate(45deg); }
.burger.is-open .burger__bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.burger.is-open .burger__bar:nth-child(3) { transform: translateY(-5.25px) rotate(-45deg); }

/* ---------- Full-screen mobile menu ---------- */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 1.5rem) var(--gutter) 2rem;
  background: var(--bg);
  clip-path: circle(0% at calc(100% - 46px) 42px);
  transition: clip-path .82s var(--ease-lux);
  overflow-y: auto;
  pointer-events: none;
}
html[dir='rtl'] .menu-overlay { clip-path: circle(0% at 46px 42px); }

.menu-overlay.is-open {
  clip-path: circle(160% at calc(100% - 46px) 42px);
  pointer-events: auto;
}
html[dir='rtl'] .menu-overlay.is-open { clip-path: circle(160% at 46px 42px); }

.menu-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 80% 0%, rgba(212, 175, 55, .16), transparent 60%),
    radial-gradient(ellipse 60% 50% at 10% 100%, rgba(212, 175, 55, .10), transparent 60%);
}

.menu-overlay__inner {
  position: relative;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

/* Menu links with staggered reveal */
.menu-nav { display: flex; flex-direction: column; gap: clamp(.15rem, 1.2vw, .5rem); }

.menu-nav__item {
  overflow: hidden;
  opacity: 0;
  transform: translateY(100%) rotate(4deg);
  transition: opacity .6s var(--ease-lux), transform .8s var(--ease-lux);
}
.menu-overlay.is-open .menu-nav__item {
  opacity: 1;
  transform: translateY(0) rotate(0);
}
.menu-overlay.is-open .menu-nav__item:nth-child(1) { transition-delay: .18s; }
.menu-overlay.is-open .menu-nav__item:nth-child(2) { transition-delay: .24s; }
.menu-overlay.is-open .menu-nav__item:nth-child(3) { transition-delay: .30s; }
.menu-overlay.is-open .menu-nav__item:nth-child(4) { transition-delay: .36s; }
.menu-overlay.is-open .menu-nav__item:nth-child(5) { transition-delay: .42s; }
.menu-overlay.is-open .menu-nav__item:nth-child(6) { transition-delay: .48s; }
.menu-overlay.is-open .menu-nav__item:nth-child(7) { transition-delay: .54s; }
.menu-overlay.is-open .menu-nav__item:nth-child(8) { transition-delay: .60s; }
.menu-overlay.is-open .menu-nav__item:nth-child(9) { transition-delay: .66s; }

.menu-nav__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 4.1rem);
  font-weight: 300;
  line-height: 1.18;
  color: var(--text);
  transition: color var(--t-fast) var(--ease-soft), padding-inline-start var(--t-mid) var(--ease-lux);
}
html[lang='ar'] .menu-nav__link { font-family: var(--font-ar-display); font-weight: 700; font-size: clamp(1.8rem, 6vw, 3.4rem); }

.menu-nav__link:hover { color: var(--gold-text); padding-inline-start: 1.1rem; }

.menu-nav__idx {
  font-family: var(--font-body);
  font-size: .66rem;
  letter-spacing: .2em;
  color: var(--gold-400);
  opacity: .55;
}

.menu-nav__link.is-active { color: var(--gold-text); }
.menu-nav__link.is-active::before {
  content: '';
  position: absolute;
  inset-inline-start: -1.1rem;
  inset-block-start: 50%;
  translate: 0 -50%;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--gold-400);
  box-shadow: 0 0 12px var(--gold-400);
}

/* Menu aside panel */
.menu-aside {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease-lux) .5s, transform .7s var(--ease-lux) .5s;
}
.menu-overlay.is-open .menu-aside { opacity: 1; transform: translateY(0); }

.menu-aside__block { display: flex; flex-direction: column; gap: .45rem; }

.menu-aside__label {
  font-size: var(--fs-micro);
  letter-spacing: var(--track-wide);
  text-transform: uppercase;
  color: var(--gold-text);
}
html[lang='ar'] .menu-aside__label { letter-spacing: .05em; text-transform: none; }

.menu-aside__value { color: var(--text-2); font-size: .96rem; line-height: 1.7; }
.menu-aside__value a { transition: color var(--t-fast); }
.menu-aside__value a:hover { color: var(--gold-text); }

.menu-socials { display: flex; gap: .6rem; flex-wrap: wrap; }

.menu-figure {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4 / 3;
}
.menu-figure img { width: 100%; height: 100%; object-fit: cover; opacity: .85; }

/* ---------- Breakpoints ---------- */
@media (max-width: 1140px) {
  .nav { display: none; }
  .burger { display: block; }
  .hdr-cta { display: none; }
}

@media (max-width: 860px) {
  .menu-overlay__inner { grid-template-columns: 1fr; align-content: center; }
  .menu-figure { display: none; }
  .menu-overlay { justify-content: flex-start; padding-block-start: calc(var(--header-h) + 2.5rem); }
}

@media (max-width: 520px) {
  .brand__text { display: none; }
  .ctrl--lang { min-width: 50px; font-size: .62rem; }
  .menu-aside { gap: 1.1rem; }
}