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

.navbar {
  background-color: var(--color-surface-container-lowest);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-ambient);
  overflow: hidden;
}

.navbar__nav {
  background-color: var(--color-surface-container-lowest);
  position: relative;
  z-index: 10;
}

/* ============================================================
   Navbar row (flex container)
   ============================================================ */

.navbar__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
}

/* ============================================================
   Hamburger toggle (mobile only)
   ============================================================ */

.navbar__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: var(--space-2);
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}

.navbar__toggle:hover {
  background-color: var(--color-bg-subtle);
}

.navbar__toggle:focus {
  outline: none;
  box-shadow: var(--shadow-focus);
}

@media (min-width: 768px) {
  .navbar__toggle {
    display: none;
  }
}

/* ============================================================
   Logo link
   ============================================================ */

.navbar__logo {
  color: var(--color-primary);
  font-size: var(--text-2xl);
  font-weight: 700;
  flex-grow: 1;
  text-align: center;
  text-decoration: none;
  font-family: var(--font-display);
  letter-spacing: var(--tracking-headline);
  transition: color 200ms ease;
}

.navbar__logo:hover {
  color: var(--color-primary-dim);
}

@media (min-width: 768px) {
  .navbar__logo {
    flex-grow: 0;
    text-align: left;
  }
}

/* ============================================================
   Desktop nav links
   ============================================================ */

.navbar__links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .navbar__links {
    display: flex;
  }
}

/* ============================================================
   Desktop actions (logout button area)
   ============================================================ */

.navbar__actions {
  display: none;
}

@media (min-width: 768px) {
  .navbar__actions {
    display: flex;
    align-items: center;
  }
}

/* ============================================================
   Nav link
   ============================================================ */

.navbar-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  position: relative;
  transition: color 200ms ease;
}

.navbar-link:hover {
  color: var(--color-text);
}

.navbar-link.active-tab-desktop::after {
  content: '';
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-focus-ring);
  position: absolute;
  bottom: -1px;
  left: 0;
  border-radius: 1px;
}

/* ============================================================
   Mobile dropdown
   ============================================================ */

.navbar__mobile {
  background-color: var(--color-surface-container-low);
}

@media (min-width: 768px) {
  .navbar__mobile {
    display: none !important;
  }
}

.navbar__mobile-content {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.navbar__mobile-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-primary-container);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  font-weight: 500;
  text-decoration: none;
  transition: background-color 200ms ease;
}

.navbar__mobile-link:hover {
  background-color: var(--color-action-border-subtle);
  color: var(--color-primary);
}

/* ============================================================
   Public login inline form (sessions#new)
   ============================================================ */

.navbar__mobile-sign-in-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--gradient-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  font-size: var(--text-base);
  flex-shrink: 0;
  transition: filter 200ms ease;
}

.navbar__mobile-sign-in-trigger:hover {
  filter: brightness(0.92);
}

@media (min-width: 768px) {
  .navbar__mobile-sign-in-trigger {
    display: none;
  }
}

.navbar__mobile-login:not(.hidden) {
  display: block;
  padding: var(--space-5);
  border-top: 1px solid var(--color-border-ghost);
  background-color: var(--color-surface-container-low);
}

@media (min-width: 768px) {
  .navbar__mobile-login {
    display: none !important;
  }
}

.navbar__login-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--gradient-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  cursor: pointer;
  user-select: none;
  border: none;
  transition: filter 200ms ease;
}

.navbar__login-trigger:hover {
  filter: brightness(0.92);
}

.navbar__login-panel:not(.hidden) {
  display: flex;
  align-items: flex-end;
  gap: var(--space-3);
}

.navbar__login-panel form {
  display: contents;
}

.navbar__login-panel .form-field {
  margin-bottom: 0;
}

.navbar__login-submit {
  flex-shrink: 0;
  white-space: nowrap;
}