/* =========================================================
   NOOR JABAL DECORATION — Header & Navigation
   ========================================================= */

/* ── Header Base ──────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--dur-slow) var(--ease-out),
              backdrop-filter var(--dur-slow) var(--ease-out),
              border-color var(--dur-slow) var(--ease-out),
              height var(--dur-mid) var(--ease-out),
              box-shadow var(--dur-slow) var(--ease-out);
  border-bottom: 1px solid transparent;
}

/* Initial state — transparent over hero */
.site-header--transparent {
  background: transparent;
}

/* Scrolled state */
.site-header--scrolled {
  height: var(--header-h-sm);
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(201,164,92,0.15);
  box-shadow: 0 4px 40px rgba(0,0,0,0.3);
}

/* Light page hero variant */
.site-header--light {
  background: var(--clr-charcoal);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: var(--space-6);
}

/* ── Logo ─────────────────────────────────── */
.site-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: opacity var(--dur-fast);
}

.site-header__logo:hover {
  opacity: 0.85;
}

.site-header__logo img {
  height: 52px;
  width: auto;
  object-fit: contain;
}

.site-header--scrolled .site-header__logo img {
  height: 44px;
}

/* ── Nav ──────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.site-nav__link {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--dur-fast) var(--ease-out);
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--clr-gold);
  transition: width var(--dur-mid) var(--ease-out);
}

.site-nav__link:hover,
.site-nav__link.active {
  color: var(--clr-gold);
}

.site-nav__link:hover::after,
.site-nav__link.active::after {
  width: 100%;
}

.site-nav__link:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 4px;
}

/* ── CTA Button ───────────────────────────── */
.site-header__cta {
  flex-shrink: 0;
}

/* ── Hamburger ────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1010;
  position: relative;
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--clr-ivory);
  transition: transform var(--dur-mid) var(--ease-out),
              opacity var(--dur-mid) var(--ease-out),
              width var(--dur-mid) var(--ease-out);
  transform-origin: center;
}

.hamburger.open .hamburger__line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.open .hamburger__line:nth-child(2) {
  opacity: 0;
  width: 0;
}

.hamburger.open .hamburger__line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.hamburger:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 3px;
}

/* ── Mobile Nav ───────────────────────────── */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--clr-black);
  z-index: 1005;
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-h) + var(--space-8)) var(--container-pad) var(--space-12);
  transform: translateY(-100%);
  opacity: 0;
  transition: transform var(--dur-slow) var(--ease-out),
              opacity var(--dur-mid) var(--ease-out);
  overflow-y: auto;
}

.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
}

.mobile-nav__link {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 7vw, 3rem);
  font-weight: 400;
  color: var(--clr-ivory);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color var(--dur-fast);
}

.mobile-nav__link:hover {
  color: var(--clr-gold);
}

.mobile-nav__link:focus-visible {
  outline: 2px solid var(--clr-gold);
  outline-offset: 4px;
}

.mobile-nav__cta {
  margin-top: auto;
  padding-top: var(--space-8);
}

.mobile-nav__contact {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--clr-border);
}

.mobile-nav__contact p {
  font-size: var(--fs-xs);
  color: var(--clr-light-mid);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.mobile-nav__contact a {
  color: var(--clr-ivory);
  font-size: var(--fs-base);
  display: block;
}

/* ── Responsive ───────────────────────────── */
@media (max-width: 1024px) {
  .site-nav {
    gap: var(--space-5);
  }

  .site-header__cta {
    display: none;
  }
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}