:root {
  --nav-height: 72px;
  --nav-bg: rgba(255, 255, 255, 0.92);
  --nav-blur: blur(20px);
  --nav-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  --nav-link-size: 15px;
  --nav-link-color: var(--color-text-secondary);
  --nav-link-active-color: var(--color-primary);
  --nav-link-hover-color: var(--color-primary);
  --nav-link-gap: 32px;
  --nav-cta-bg: var(--color-accent);
  --nav-cta-hover-bg: var(--color-accent-hover);
  --nav-cta-color: #fff;
  --nav-cta-size: 15px;
  --nav-cta-padding: 10px 28px;
  --nav-cta-radius: var(--radius-btn);
  --nav-mobile-bg: rgba(255, 255, 255, 0.98);
  --nav-mobile-link-size: 18px;
  --nav-mobile-cta-size: 16px;
  --nav-mobile-cta-padding: 14px 32px;
  --nav-burger-width: 22px;
  --nav-burger-height: 2px;
  --nav-burger-gap: 5px;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: var(--nav-blur);
  -webkit-backdrop-filter: var(--nav-blur);
  box-shadow: var(--nav-shadow);
  transition: box-shadow var(--transition-fast);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo-link {
  display: flex;
  align-items: center;
}

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

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--nav-link-gap);
  list-style: none;
}

.nav__link {
  font-size: var(--nav-link-size);
  font-weight: 500;
  color: var(--nav-link-color);
  position: relative;
  padding: 4px 0;
  text-decoration: none;
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--nav-link-active-color);
  border-radius: 1px;
  transition: width var(--transition-fast);
}

.nav__link:hover {
  color: var(--nav-link-hover-color);
}

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

.nav__link--active {
  color: var(--nav-link-active-color);
}

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

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: var(--nav-cta-padding);
  background: var(--nav-cta-bg);
  color: var(--nav-cta-color);
  font-size: var(--nav-cta-size);
  font-weight: 600;
  border-radius: var(--nav-cta-radius);
  white-space: nowrap;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: all var(--transition-fast);
}

.nav__cta:hover {
  background: var(--nav-cta-hover-bg);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: var(--nav-burger-gap);
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}

.nav__burger span {
  display: block;
  width: var(--nav-burger-width);
  height: var(--nav-burger-height);
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__burger.active span:nth-child(2) {
  opacity: 0;
}

.nav__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.nav__mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--nav-mobile-bg);
  backdrop-filter: var(--nav-blur);
  padding: 32px 24px;
  z-index: 999;
}

.nav__mobile-menu.active {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.nav__mobile-link {
  display: block;
  padding: 16px 0;
  font-size: var(--nav-mobile-link-size);
  font-weight: 500;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}

.nav__mobile-link--active {
  color: var(--nav-link-active-color);
}

.nav__mobile-cta {
  margin-top: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--nav-mobile-cta-padding);
  background: var(--nav-cta-bg);
  color: var(--nav-cta-color);
  font-size: var(--nav-mobile-cta-size);
  font-weight: 600;
  border-radius: var(--nav-cta-radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

@media (max-width: 1023px) {
  .nav__menu { display: none; }
  .nav__cta:not(.nav__cta--always) { display: none; }
  .nav__burger { display: flex; }
}