:root {
  --primary: #5e2028;
  --primary-light: rgba(94, 32, 40, 0.1);
  --background: #fff;
  --background-alt: #f8f9fa;
  --text: #333;
  --text-light: #6c757d;
  --border: #e9ecef;
  --shadow: rgba(0, 0, 0, 0.05);
  --sidebar-width: 260px;
  --border-radius: 8px;
  --transition: 200ms ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--text);
  background: var(--background);
  min-height: 100vh;
  display: flex;
}

.material-symbols-rounded {
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  font-size: 20px;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--background);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: fixed;
  box-shadow: 0 0 20px var(--shadow);
}

.sidebar-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo-container {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  cursor: pointer;
}

.logo-container img {
  height: 40px;
  width: auto;
}

.search-container {
  width: 100%;
  position: relative;
}

.search-container input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.25rem;
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  background: var(--background-alt);
}

.search-container input:focus {
  outline: none; /* Entfernt die Standard-Browser-Umrandung */
  border-color: var(--primary); /* Bordeaux-rote Umrandung */
  box-shadow: 0 0 0 2px rgba(94, 32, 40, 0.2); /* Sanfter bordeaux-roter Schatten */
  caret-color: var(--primary); /* Bordeaux-roter Cursor */
}

.search-container input:focus-visible {
  outline: none; /* Für bessere Browser-Kompatibilität */
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  pointer-events: none;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.current-category {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  padding: 0.75rem;
  margin-bottom: 1rem;
  border-radius: var(--border-radius);
  background: var(--background-alt);
}

.current-category .material-symbols-rounded {
  margin-right: 0.75rem;
  cursor: pointer;
  color: var(--primary);
}

.hidden {
  display: none;
}

.nav-section {
  margin-bottom: 1.25rem;
}

.nav-section-header {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.5rem;
}

.nav-items {
  list-style: none;
}

.nav-item {
  list-style: none;
  margin-bottom: 0.25rem;
}

.nav-button {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 0.6rem 0.75rem;
  border-radius: var(--border-radius);
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  text-align: left;
  transition: all var(--transition);
  background: none;
  border: none;
  cursor: pointer;
}

.nav-button .material-symbols-rounded {
  margin-right: 0.75rem;
}

.nav-button:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-button.active {
  background: var(--primary);
  color: white;
}

/* Submenu styles from original CSS */
.sub-nav-button {
  padding-left: 2.5rem;
  font-size: 0.8rem;
  position: relative;
  transition: all var(--transition);
}

.sub-nav-button:hover {
  transform: translateX(5px);
}

.sub-nav-button:hover .material-symbols-rounded {
  transform: translateX(2px);
}

.sub-nav-button.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.sub-nav-button.active::before {
  content: "";
  position: absolute;
  left: 0.75rem;
  top: 25%;
  bottom: 25%;
  width: 3px;
  background-color: var(--primary);
  border-radius: 2px;
}

/* Submenu section headers from original CSS */
.submenu-section-header {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  padding: 1rem 0 0.25rem 0.75rem;
  margin-top: 0.5rem;
  position: relative;
  cursor: default;
}

.submenu-section-header:first-child {
  padding-top: 0.5rem;
  margin-top: 0;
}

/* First section header has shorter line */
.submenu-section-header:first-child::before {
  top: 0.5rem;
}

/* Improved grouping of submenu items */
.submenu-section-header + .nav-item {
  margin-top: 0.25rem;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--border);
}

.login-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--border-radius);
  background-color: var(--primary);
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition);
  width: 100%;
  border: none;
  cursor: pointer;
}

.login-button:hover {
  background-color: #4a1a20;
}

.content {
  margin-left: var(--sidebar-width);
  padding: 2rem;
  flex: 1;
}

/* Article content styles */
.article-content {
  max-width: 800px;
  line-height: 1.6;
}

.article-content h1 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

.article-content h2 {
  font-size: 1.5rem;
  margin: 1.5rem 0 1rem;
  color: var(--text);
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 1.25rem 0 0.75rem;
  color: var(--text);
}

.article-content p {
  margin-bottom: 1rem;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content pre {
  background: var(--background-alt);
  padding: 1rem;
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin-bottom: 1rem;
}

.article-content code {
  background: var(--background-alt);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

.article-content blockquote {
  border-left: 4px solid var(--primary);
  padding-left: 1rem;
  margin-left: 0;
  margin-bottom: 1rem;
  color: var(--text-light);
}

/* Responsive Bilder */
.article-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1rem 0;
}

/* NEU: Zwei-Spalten-Layout */
.zwei-spalten-container {
  display: flex;
  gap: 2rem;
  margin: 2rem 0;
  align-items: flex-start;
}

.spalte-links,
.spalte-rechts {
  flex: 1;
}

.spalte-links img,
.spalte-rechts img {
  margin: 0.5rem 0;
}

/* Mobile styles */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  align-items: center;
  justify-content: center;
  border: none;
}

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 45;
  opacity: 0;
  transition: opacity var(--transition);
  backdrop-filter: blur(2px);
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(calc(var(--sidebar-width) * -1));
    transition: transform var(--transition);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .overlay.active {
    display: block;
    opacity: 1;
  }

  .content {
    margin-left: 0;
  }

  /* Mobile responsive Bilder */
  .article-content img {
    max-width: 100%;
    margin: 0.5rem 0;
  }

  /* Mobile: Spalten untereinander statt nebeneinander */
  .zwei-spalten-container {
    flex-direction: column;
    gap: 1rem;
  }
}