/* =============================================
   NAVBAR.CSS — Navigation Bar Styles
   ============================================= */

/* ── Base ── */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: box-shadow var(--transition-base), background var(--transition-base);
}

#navbar.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.92);
}

/* ── Inner wrapper ── */
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin-inline: auto;
  padding: 0 var(--space-6);
  height: 68px;
}

/* ── Logo ── */
.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #1a1a2e;
  letter-spacing: -0.3px;
  text-decoration: none;
  white-space: nowrap;
}

.nav-logo span {
  color: var(--orange);
}

/* ── Links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: #374151;
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-links a:hover {
  background: rgba(249, 115, 22, 0.08);
  color: var(--orange-dark);
}

.nav-links a.active {
  background: rgba(249, 115, 22, 0.12);
  color: var(--orange-dark);
  font-weight: 600;
}

/* ── Right controls ── */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 14px;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--orange-dark);
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.nav-lang-btn:hover {
  background: rgba(249, 115, 22, 0.08);
  border-color: rgba(249, 115, 22, 0.35);
}

.nav-theme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: #ffffff;
  border: 1px solid #e5e7eb;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-base);
}

.nav-theme-btn:hover {
  background: rgba(249, 115, 22, 0.08);
  border-color: rgba(249, 115, 22, 0.35);
  transform: rotate(22deg);
}

/* ── Hamburger ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #374151;
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile drawer ── */
.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-slow);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.nav-mobile.open {
  max-height: 400px;
}

.nav-mobile a {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: #374151;
  text-decoration: none;
  padding: 14px var(--space-6);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav-mobile a:hover,
.nav-mobile a.active {
  background: rgba(249, 115, 22, 0.07);
  color: var(--orange-dark);
}

.nav-mobile-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 14px var(--space-6);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links,
  .nav-controls {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }
}

/* ── Dark mode: control buttons ── */
html.dark .nav-lang-btn {
  background: #1a1a1a;
  border-color: #333333;
  color: var(--orange-light);
}

html.dark .nav-lang-btn:hover {
  background: #242424;
  border-color: rgba(249, 115, 22, 0.45);
}

html.dark .nav-theme-btn {
  background: #1a1a1a;
  border-color: #333333;
}

html.dark .nav-theme-btn:hover {
  background: #242424;
  border-color: rgba(249, 115, 22, 0.45);
}