/* =========================================
   LAYOUT — Navbar
   ========================================= */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  transition: background-color var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.navbar.is-scrolled {
  background-color: var(--color-bg-overlay);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border);
}

.navbar__inner {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: var(--weight-black);
  font-size: var(--text-xl);
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.navbar__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  overflow: hidden;
  flex-shrink: 0;
}

.navbar__logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

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

.navbar__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.navbar__link:hover,
.navbar__link.is-active {
  color: var(--color-text-primary);
}

.navbar__cta {
  margin-left: var(--space-4);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color var(--duration-fast) var(--ease-out);
}

.navbar__hamburger:hover {
  background-color: var(--color-bg-elevated);
}

.navbar__hamburger span {
  display: block;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out),
              width var(--duration-normal) var(--ease-out);
}

.navbar__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__hamburger.is-open span:nth-child(2) { opacity: 0; width: 0; }
.navbar__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
  .navbar__nav   { display: none; }
  .navbar__cta   { display: none; }
  .navbar__hamburger { display: flex; }
}