/* ============================================================
   SOLARA INVESTMENT — Navigation (RTL + Language Switcher)
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--nav-height);
  transition: background var(--transition-nav), border-color var(--transition-nav), box-shadow var(--transition-nav);
  border-bottom: 1px solid transparent;
  /* Safe area for iPhones with notch / Dynamic Island */
  padding-top: env(safe-area-inset-top, 0px);
}

.nav--scrolled {
  background: rgba(6, 13, 26, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 32px rgba(6,13,26,0.4);
}

/* === INNER === */
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding-inline: var(--space-gutter);
  max-width: var(--container-max);
  margin-inline: auto;
  gap: var(--space-4);
}

/* === LOGO === */
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  z-index: 101;
}

.nav__logo-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav__logo-text {
  font-family: var(--font-arabic);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.nav__logo-text em {
  color: var(--color-gold);
  font-style: normal;
}

/* === DESKTOP LINKS === */
.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-8);
  margin-inline: auto;
}

@media (min-width: 1024px) {
  .nav__links { display: flex; }
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding-bottom: 2px;
  white-space: nowrap;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  inset-inline-start: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-emerald);
  transition: width var(--transition-normal);
}

.nav__link:hover {
  color: var(--color-text-primary);
}

.nav__link:hover::after {
  width: 100%;
}

/* === RIGHT SIDE ACTIONS === */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* === LANGUAGE SWITCHER === */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--color-surface);
  border: var(--border-dark);
  border-radius: var(--radius-full);
  padding: 3px 4px;
}

.lang-btn {
  font-family: var(--font-latin);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  color: var(--color-text-tertiary);
  transition: all var(--transition-fast);
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
}

.lang-btn--active {
  background: var(--color-emerald);
  color: var(--color-night);
}

.lang-btn:not(.lang-btn--active):hover {
  color: var(--color-text-primary);
}

/* === CTA BUTTON === */
.nav__cta {
  display: none;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .nav__cta { display: inline-flex; }
}

/* === HAMBURGER === */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  z-index: 101;
}

@media (min-width: 1024px) {
  .nav__hamburger { display: none; }
}

.nav__hamburger-line {
  display: block;
  height: 2px;
  background: #F5F2EC;
  background: var(--color-text-primary, #F5F2EC);
  border-radius: 2px;
  transition: all var(--transition-normal);
  transform-origin: center;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

.nav__hamburger.is-open .nav__hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__hamburger.is-open .nav__hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__hamburger.is-open .nav__hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* === MOBILE MENU === */
.nav__mobile {
  position: fixed;
  inset: 0;
  background: rgba(6, 13, 26, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-nav);
}

.nav__mobile.is-open {
  opacity: 1;
  pointer-events: auto;
}

.nav__mobile-link {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  display: block;
  text-align: center;
}

.nav__mobile-link:hover {
  color: var(--color-emerald);
}

.nav__mobile-cta {
  margin-top: var(--space-4);
}

.nav__mobile-lang {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
  background: var(--color-surface);
  border: var(--border-dark);
  border-radius: var(--radius-full);
  padding: 4px 5px;
}

.nav__mobile-lang .lang-btn {
  font-size: var(--text-sm);
  padding: 8px 20px;
}