/* === NAVBAR === */
.navbar {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(248, 249, 251, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 250ms ease;
  height: var(--nav-height);
}

.navbar.is-scrolled {
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.navbar__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: opacity 150ms ease;
}

.navbar__logo:hover {
  opacity: 0.85;
}

.navbar__logo img {
  height: 32px;
  width: auto;
}

.navbar__nav {
  margin-inline: auto;
}

.navbar__links {
  display: flex;
  gap: var(--space-1);
}

.navbar__link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color 150ms ease, background 150ms ease;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: var(--space-3);
  right: var(--space-3);
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
}

.navbar__link:hover {
  color: var(--color-primary);
  background: rgba(27, 58, 92, 0.05);
}

.navbar__link.is-active {
  color: var(--color-accent-dark);
}

.navbar__link.is-active::after {
  transform: scaleX(1);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* === HAMBURGER === */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background 150ms ease;
}

.navbar__hamburger:hover {
  background: rgba(27, 58, 92, 0.06);
}

.navbar__bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform 300ms ease, opacity 300ms ease;
}

.navbar__hamburger[aria-expanded="true"] .navbar__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__hamburger[aria-expanded="true"] .navbar__bar:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger[aria-expanded="true"] .navbar__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* === MOBILE MENU === */
.navbar__mobile {
  display: none;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--space-6);
  position: absolute;
  top: var(--nav-height);
  left: 0;
  right: 0;
  box-shadow: var(--shadow-lg);
  z-index: 899;
}

.navbar__mobile.is-open {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.navbar__mobile-link {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  transition: color 150ms ease, background 150ms ease;
  display: block;
}

.navbar__mobile-link:hover,
.navbar__mobile-link.is-active {
  color: var(--color-primary);
  background: rgba(27, 58, 92, 0.05);
}

.navbar__mobile-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

@media (max-width: 767px) {
  .navbar__nav,
  .navbar__actions {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }
}