/* Vertikal Navigation Meny - CSS Styling */

/* Grundläggande layout och design */
.vertical-navigation {
  --nav-bg: var(--base-3, #ffffff);
  --nav-text: var(--contrast, #222222);
  --nav-hover: var(--accent, #1e73be);
  --nav-active: var(--accent, #1e73be);
  --nav-border: var(--contrast-3, #e0e0e0);
  --nav-icon: var(--contrast-2, #575760);
  --nav-spacing: 12px 20px;
  --nav-transition: 0.2s ease-in-out;

  width: 100%;
  background: var(--nav-bg);
  border-left: 3px solid var(--nav-active);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
}

/* Header med logotyp */
.nav-header {
  padding: 15px;
  background-color: #247FB4;
  text-align: center;
  border-bottom: 2px solid var(--nav-border);
}

.nav-logo img {
  max-width: 70px;
  height: auto;
  transition: transform var(--nav-transition);
}

.nav-logo a:hover img {
  transform: scale(1.05);
}

/* Huvudmeny */
.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  margin: 0;
  border-bottom: 1px solid var(--nav-border);
}

/* Länkar och knappar */
.nav-link,
.nav-sublink {
  display: flex;
  align-items: center;
  padding: var(--nav-spacing);
  color: var(--nav-text);
  text-decoration: none;
  transition: all var(--nav-transition);
  font-weight: 600;
  width: 100%;
  border: none;
  background: none;
  cursor: pointer;
  text-align: left;
}

.nav-link:hover,
.nav-sublink:hover {
  background-color: #f5faff;
  color: var(--nav-hover);
  padding-left: 24px;
}

/* Ikoner */
.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-right: 12px;
  color: var(--nav-icon);
}

.nav-icon--folder {
  position: relative;
}

.folder-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: opacity var(--nav-transition);
}

.folder-closed {
  opacity: 1;
}

.folder-open {
  opacity: 0;
}

[data-state="open"] .folder-closed {
  opacity: 0;
}

[data-state="open"] .folder-open {
  opacity: 1;
}

/* Pilikoner för undermenyer */
.nav-arrow {
  margin-left: auto;
  transition: transform var(--nav-transition);
}

[aria-expanded="true"] .nav-arrow {
  transform: rotate(90deg);
}

/* Undermeny */
.nav-submenu {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  background-color: #f8f9fa;
}

.nav-submenu[aria-hidden="false"] {
  display: block;
}

.nav-sublink {
  padding-left: 56px;
  font-weight: 500;
}

/* Aktiv länk */
.nav-link[aria-current="page"],
.nav-sublink[aria-current="page"] {
  color: var(--nav-active);
  background-color: #f0f7ff;
  border-right: 3px solid var(--nav-active);
}

/* Typografi */
.nav-text,
.nav-subtext {
  font-size: 15px;
  line-height: 1.4;
}

/* Responsiv design */
@media (max-width: 768px) {
  .nav-header {
    display: none;
  }
  
  .vertical-navigation {
    border-left: none;
  }
  
  .nav-link,
  .nav-sublink {
    padding: 10px 15px;
  }
  
  .nav-sublink {
    padding-left: 47px;
  }
}

/* Animationer */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-submenu[aria-hidden="false"] {
  animation: slideDown 0.2s ease-out;
}