/* ============================================
   Navbar
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  height: var(--navbar-height);
  background: var(--color-nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.navbar.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto minmax(170px, 1fr);
  align-items: center;
  gap: clamp(var(--space-4), 2vw, var(--space-8));
  height: 100%;
  max-width: 1280px;
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-xl);
  color: var(--color-text);
  text-decoration: none;
  justify-self: start;
  min-width: 0;
}

.navbar__logo-img {
  display: block;
  height: 52px;
  width: auto;
  max-width: 210px;
  object-fit: contain;
  object-position: left center;
}

.navbar__logo-img--dark {
  display: none;
}

[data-theme="dark"] .navbar__logo-img--light {
  display: none;
}

[data-theme="dark"] .navbar__logo-img--dark {
  display: block;
}

.logo-icon {
  display: none;
}

.logo-text {
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.navbar__menu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 4px;
  background: color-mix(in srgb, var(--color-surface) 72%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-border) 70%, transparent);
  border-radius: var(--radius-xl);
}

.navbar__link {
  display: block;
  padding: 0.625rem 0.75rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition: color var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  position: relative;
}

.navbar__link:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.navbar__link--active {
  color: var(--color-text);
  font-weight: var(--font-weight-semibold);
  background: var(--color-bg);
  box-shadow: 0 1px 2px rgba(6, 29, 58, 0.06), 0 0 0 1px rgba(6, 29, 58, 0.04);
}

.navbar__link--active::after {
  content: none;
}

.navbar__link:active,
.navbar__actions .btn:active,
.navbar__hamburger:active,
.theme-toggle:active {
  transform: scale(0.96);
}

.navbar__mobile-cta { display: none; }

.navbar__actions {
  display: flex;
  align-items: center;
  justify-self: end;
  gap: var(--space-2);
}

.navbar__actions .btn {
  min-height: 40px;
  padding-inline: var(--space-4);
  border-radius: var(--radius-lg);
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.navbar .theme-toggle {
  flex: 0 0 40px;
  background: transparent;
  transition: color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.navbar .theme-toggle:hover {
  color: var(--color-primary-fg);
  background: var(--color-surface-2);
  transform: none;
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--space-2);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.navbar__hamburger:hover {
  background: var(--color-surface-2);
  border-color: var(--color-border-dark);
}

.navbar__hamburger span {
  display: block;
  height: 2px;
  background: var(--color-text);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.navbar__hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1080px) {
  .navbar__inner {
    display: flex;
    gap: var(--space-3);
  }

  .navbar__logo-img {
    height: 48px;
    max-width: 190px;
  }

  .navbar__actions {
    margin-left: auto;
  }

  .navbar__menu {
    position: fixed;
    top: calc(var(--navbar-height) + var(--space-2));
    left: var(--container-padding);
    right: var(--container-padding);
    flex-direction: column;
    align-items: stretch;
    background: color-mix(in srgb, var(--color-bg) 96%, transparent);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2);
    gap: 2px;
    transform: translateY(calc(-100% - var(--navbar-height)));
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-fast), visibility var(--transition-fast);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }

  .navbar__menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .navbar__menu li { width: 100%; }

  .navbar__link {
    display: block;
    padding: 0.875rem var(--space-4);
    font-size: var(--font-size-base);
    border-radius: var(--radius-lg);
  }

  .navbar__link--active {
    color: var(--color-primary-fg);
    background: var(--color-surface);
    box-shadow: none;
  }

  .navbar__mobile-cta {
    display: block;
    margin-top: var(--space-2);
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border);
  }

  .navbar__link--cta {
    color: var(--color-on-primary);
    background: var(--color-primary);
    text-align: center;
    font-weight: var(--font-weight-semibold);
  }

  .navbar__link--cta:hover {
    color: var(--color-on-primary);
    background: var(--color-primary-dark);
  }

  .navbar__hamburger { display: flex; }
  .navbar__actions .btn-primary { display: none; }
}

@media (max-width: 480px) {
  .navbar__logo-img {
    height: 44px;
    max-width: 165px;
  }

  .navbar__inner {
    gap: var(--space-2);
  }

}

body > main,
body > #main-content {
  padding-top: var(--navbar-height);
}