/* ========================================
   Layout — Page Skeleton
   ======================================== */

/* --- Navbar --- */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 var(--space-lg);
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.navbar-brand {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.navbar-brand:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-brand .brand-icon {
  font-size: 1.3em;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* --- Page Container --- */
.page-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

/* --- Auth Page --- */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height));
  padding: var(--space-lg);
}

.auth-card {
  width: 100%;
  max-width: 400px;
}

/* --- Footer --- */
.footer {
  text-align: center;
  padding: var(--space-lg);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .navbar {
    padding: 0 var(--space-md);
  }
  .navbar-brand {
    font-size: var(--font-size-md);
  }
  .page-container {
    padding: var(--space-md);
  }
  .auth-card {
    max-width: 100%;
  }
}