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

body {
  font-family: Tahoma, "MS Sans Serif", sans-serif;
  font-size: 11px;
  background: #008080;
  overflow: hidden;
  height: 100vh;
}

.desktop {
  width: 100%;
  height: 100vh;
  position: relative;
}

.desktop-icon {
  position: absolute;
  bottom: 20px;
  left: 20px;
  text-align: center;
  color: white;
  cursor: pointer;
}

.desktop-icon img {
  width: 32px;
  height: 32px;
  margin-bottom: 4px;
}

.window {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 500px;
  background: #ECE9D8;
  border: 1px solid #000000;
  box-shadow:
      inset 1px 1px 0 #FFFFFF,
      inset -1px -1px 0 #808080,
      inset 2px 2px 0 #DFDFDF,
      inset -2px -2px 0 #404040,
      2px 2px 4px rgba(0,0,0,0.3);
}

@media (max-width: 768px) {
  body {
    overflow: auto;
  }

  .desktop {
    height: auto;
    min-height: 100vh;
    padding: 10px;
  }

  .window {
    position: relative;
    top: 0;
    left: 0;
    transform: none;
    width: 100%;
    height: auto;
    min-height: calc(100vh - 20px);
    margin: 0 auto;
  }
}

.titlebar {
  background: linear-gradient(to right, #0054E3, #3C8CF4);
  padding: 3px 5px;
  color: white;
  font-weight: bold;
  font-size: 11px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: move;
  border-bottom: 1px solid #000000;
}

@media (max-width: 768px) {
  .titlebar {
    cursor: default;
  }
}

.titlebar-text {
  display: flex;
  align-items: center;
  gap: 5px;
}

.titlebar-icon {
  width: 16px;
  height: 16px;
  background: url('/static/favicon.ico') no-repeat center;
  background-size: contain;
}

.titlebar-buttons {
  display: flex;
  gap: 2px;
}

.titlebar-button {
  width: 16px;
  height: 14px;
  background: #ECE9D8;
  border: 1px solid #000000;
  box-shadow:
      inset 1px 1px 0 #FFFFFF,
      inset -1px -1px 0 #808080;
  font-size: 9px;
  color: black;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.titlebar-button:active {
  box-shadow:
      inset -1px -1px 0 #FFFFFF,
      inset 1px 1px 0 #808080;
}

.sidebar {
  width: 150px;
  background: #FF6633;
  float: left;
  height: calc(100% - 24px);
  border-right: 1px solid #C04020;
}

@media (max-width: 768px) {
  .sidebar {
    width: 100%;
    height: auto;
    float: none;
    display: flex;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid #C04020;
  }
}

.sidebar-tab {
  background: #FF9966;
  color: white;
  padding: 8px;
  border-bottom: 1px solid #C04020;
  cursor: pointer;
  font-weight: bold;
}

@media (max-width: 768px) {
  .sidebar-tab {
    flex: 1;
    white-space: nowrap;
    border-bottom: none;
    border-right: 1px solid #C04020;
    text-align: center;
    min-width: 80px;
  }

  .sidebar-tab:last-child {
    border-right: none;
  }
}

.sidebar-tab.active {
  background: #ECE9D8;
  color: black;
}

.sidebar-tab:hover:not(.active) {
  background: #FF7744;
}

.content {
  margin-left: 150px;
  height: calc(100% - 24px);
  overflow-y: auto;
  background: #ECE9D8;
  padding: 15px;
  border-left: 1px solid #808080;
}

@media (max-width: 768px) {
  .content {
    margin-left: 0;
    height: auto;
    min-height: calc(100vh - 100px);
    padding: 10px;
    border-left: none;
    border-top: 1px solid #808080;
  }
}

.content h1 {
  font-size: 16px;
  color: #FF6633;
  margin-bottom: 10px;
  border-bottom: 2px solid #FF6633;
  padding-bottom: 5px;
}

@media (max-width: 768px) {
  .content h1 {
    font-size: 14px;
  }
}

.content h2 {
  font-size: 13px;
  color: #333;
  margin-top: 15px;
  margin-bottom: 8px;
}

@media (max-width: 768px) {
  .content h2 {
    font-size: 12px;
  }
}

.content p {
  margin-bottom: 10px;
  line-height: 1.4;
}

@media (max-width: 768px) {
  .content p,
  .content li {
    font-size: 12px;
    line-height: 1.5;
  }
}

.content ul {
  margin-left: 20px;
  margin-bottom: 10px;
}

.content li {
  margin-bottom: 5px;
}

.button {
  background: #ECE9D8;
  border: 1px solid #000000;
  box-shadow:
      inset 1px 1px 0 #FFFFFF,
      inset 2px 2px 0 #DFDFDF,
      inset -1px -1px 0 #808080,
      inset -2px -2px 0 #404040;
  padding: 5px 15px;
  cursor: pointer;
  font-family: Tahoma;
  font-size: 11px;
}

@media (max-width: 768px) {
  .button {
    padding: 10px 20px;
    font-size: 13px;
    min-height: 44px;
  }
}

.button:active {
  box-shadow:
      inset -1px -1px 0 #FFFFFF,
      inset -2px -2px 0 #DFDFDF,
      inset 1px 1px 0 #808080,
      inset 2px 2px 0 #404040;
}

.button:hover {
  background: #F5F2E8;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: bold;
}

@media (max-width: 768px) {
  .form-group label {
    font-size: 12px;
  }
}

.form-group input[type="text"],
.form-group input[type="file"] {
  width: 100%;
  padding: 3px;
  border: 1px solid #000000;
  box-shadow:
      inset -1px -1px 0 #FFFFFF,
      inset 1px 1px 0 #808080,
      inset -2px -2px 0 #DFDFDF,
      inset 2px 2px 0 #404040;
  background: white;
  font-family: Tahoma;
  font-size: 11px;
}

@media (max-width: 768px) {
  .form-group input[type="text"],
  .form-group input[type="file"] {
    padding: 8px;
    font-size: 14px;
    min-height: 44px;
  }
}

.info-box {
  background: #FFFFCC;
  border: 1px solid #000000;
  box-shadow:
      inset -1px -1px 0 #FFFFFF,
      inset 1px 1px 0 #808080;
  padding: 10px;
  margin: 10px 0;
}

.feature-list {
  background: white;
  border: 1px solid #000000;
  box-shadow:
      inset -1px -1px 0 #FFFFFF,
      inset 1px 1px 0 #808080,
      inset -2px -2px 0 #DFDFDF,
      inset 2px 2px 0 #404040;
  padding: 10px;
  margin: 10px 0;
}

.download-link {
  display: inline-block;
  background: #FF6633;
  color: white;
  padding: 8px 20px;
  text-decoration: none;
  margin: 5px;
  border: 1px solid #000000;
  box-shadow:
      inset 1px 1px 0 #FF9966,
      inset 2px 2px 0 #FFAA88,
      inset -1px -1px 0 #C04020,
      inset -2px -2px 0 #802010;
}

@media (max-width: 768px) {
  .download-link {
    display: block;
    padding: 12px 20px;
    margin: 10px 0;
    text-align: center;
    font-size: 13px;
  }
}

.download-link:hover {
  background: #FF7744;
}

.download-link:active {
  box-shadow:
      inset -1px -1px 0 #FF9966,
      inset -2px -2px 0 #FFAA88,
      inset 1px 1px 0 #C04020,
      inset 2px 2px 0 #802010;
}

.section {
  display: none;
}

.section.active {
  display: block;
}

.status-indicator {
  display: inline-block;
  width: 10px;
  height: 10px;
  background: #00FF00;
  border-radius: 50%;
  margin-right: 5px;
}

@media (max-width: 768px) {
  .titlebar {
    touch-action: none;
  }
}