/* =========================================
   SHARARA — Header / Navigation
   ========================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.55);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base) var(--ease-out), background var(--t-base) var(--ease-out);
}

.header.is-scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(10, 10, 10, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

/* Logo */
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
}



.brand-mark img {
  width: 100px;
  height: 100px;
}

.brand-name span {
  color: var(--color-accent);
}

/* Desktop nav */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-7);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links a {
  position: relative;
  font-size: 15px;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  transition: color var(--t-fast) var(--ease-out);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--t-base) var(--ease-out);
  border-radius: var(--radius-full);
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
  width: 100%;
}

.nav-divider {
  width: 1px;
  height: 26px;
  background: var(--color-border);
}

/* CTA button in nav */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 26px;
  border-radius: var(--radius-full);
  transition: transform var(--t-fast) var(--ease-out), box-shadow var(--t-base) var(--ease-out), background var(--t-base) var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent-bright), var(--color-accent));
  color: #00201f;
  box-shadow: 0 6px 24px var(--color-accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px var(--color-accent-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-ghost {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-accent-dim);
  color: var(--color-accent-bright);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 13px;
}

.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Language toggle button */
.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.03em;
  flex-shrink: 0;
  transition: border-color var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out), background var(--t-fast) var(--ease-out);
}

.lang-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-dim);
}

/* Groups lang btn + hamburger on mobile */
.nav-end-mobile {
  display: none;
  align-items: center;
  gap: var(--space-3);
}

/* Hamburger (mobile menu trigger) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: transform var(--t-base) var(--ease-out), opacity var(--t-base) var(--ease-out);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile nav drawer */
.nav-mobile {
  position: fixed;
  top: var(--header-height-mobile);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 10, 0.98);
  backdrop-filter: blur(10px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--space-5);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--t-base) var(--ease-out), opacity var(--t-base) var(--ease-out);
  overflow-y: auto;
}

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

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.nav-mobile-links a {
  font-family: var(--font-display);
  font-size: 24px;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border-soft);
  color: var(--color-text);
}

.nav-mobile-links a .num {
  color: var(--color-text-faint);
  font-family: var(--font-body);
  font-size: 13px;
  margin-inline-end: var(--space-2);
}

.nav-mobile-cta {
  margin-top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.nav-mobile-social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-7);
  justify-content: center;
}

@media (max-width: 880px) {
  .nav-desktop {
    display: none;
  }
  .nav-end-mobile {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .header {
    height: var(--header-height-mobile);
  }
}