body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  font-family: Arial, sans-serif;
  background: url('../images/background.jpg') no-repeat center center/cover;
  color: white;
}

#boot-screen {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: black;
  color: #0f0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  font-family: monospace;
  font-size: 24px;
  z-index: 9999;
}

.welcome-banner {
  background-color: #f1f1f1;
  color: #333;
  padding: 10px 20px;
  text-align: center;
  position: fixed;
  top: 10px;
  right: 10px;
  z-index: 9999;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  max-width: 300px;
  width: 100%;
  display: none;
}
.welcome-banner button {
  background-color: #555;
  color: white;
  border: none;
  padding: 5px 10px;
  cursor: pointer;
  margin-top: 10px;
  border-radius: 3px;
}
.welcome-banner button:hover {
  background-color: #333;
}

.desktop {
  position: relative;
  height: calc(100vh - 40px);
  padding: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-content: flex-start;
}

.icon {
  width: 80px;
  text-align: center;
  cursor: pointer;
  color: white;
}
.icon img {
  width: 64px;
  height: 64px;
  margin-bottom: 5px;
}

.icon.bin {
  position: fixed;
  bottom: 50px;
  right: 20px;
  width: 80px;
  text-align: center;
  cursor: pointer;
  color: white;
}

.window {
  position: fixed;
  width: 600px;
  height: 400px;
  background-color: white;
  color: black;
  border: 1px solid #000;
  border-radius: 5px;
  display: none;
  z-index: 10;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  top: 50px;
  left: 50px;
  user-select: none;
  overflow: hidden;
  transition: top 0.2s ease-in-out, left 0.2s ease-in-out;
}
.window.active {
  display: block;
}
.window .title-bar {
  height: 30px;
  background: #0078d7;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 10px;
  cursor: move;
  border-radius: 5px 5px 0 0;
  user-select: none;
  font-weight: bold;
}
.window .content {
  padding: 10px;
  overflow-y: auto;
  height: calc(100% - 30px);
  box-sizing: border-box;
  background: white;
  color: black;
}
.close-btn {
  cursor: pointer;
  color: white;
  font-weight: bold;
}

#taskbar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 40px;
  background: linear-gradient(to bottom, #0a4ea8, #083d8a);
  border-top: 1px solid #000080;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.3);
  display: flex;
  align-items: center;
  padding: 0 5px;
  z-index: 1000;
  font-family: "Tahoma", Geneva, sans-serif;
  user-select: none;
}

#start-button {
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, #4caf50 0%, #2e7d32 100%); 
  border: 1px solid #1b5e20;
  box-shadow: inset 1px 1px 0 #81c784, inset -1px -1px 0 #145214;
  width: 90px;
  height: 28px;
  margin-right: 5px;
  cursor: pointer;
  padding: 0 8px;
  font-size: 12px;
  color: white;
  font-weight: bold;
  text-shadow: 1px 1px 0 #145214;
  border-radius: 3px;
  user-select: none;
}
#start-button:hover {
  background: linear-gradient(to bottom, #66bb6a 0%, #388e3c 100%);
}

#start-icon {
  width: 16px;
  height: 16px;
  margin-right: 5px;
  filter: drop-shadow(0 0 1px black);
}

#start-menu {
  display: none;
  position: absolute;
  bottom: 40px;
  left: 10px;
  background: #2e2e2e;
  color: white;
  border-radius: 5px;
  width: 180px;
  padding: 5px 0;
  box-shadow: 0 0 10px rgba(0,0,0,0.7);
  z-index: 2000;
  user-select: none;
}
#start-menu.active {
  display: block;
}
#start-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
#start-menu li {
  padding: 8px 15px;
  cursor: pointer;
  font-size: 14px;
}
#start-menu li:hover {
  background: #0078d7;
}

#system-tray {
  margin-left: auto;
  width: 150px;
  height: 28px;
  background: linear-gradient(to bottom, #4a90e2 0%, #77a7f7 100%);
  border: 1px solid #316ac5;
  box-shadow: inset 1px 1px 0 white, inset -1px -1px 0 #224e90;
  border-radius: 3px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 0 8px;
  font-size: 12px;
  color: white;
  user-select: none;
}

.clock {
  margin-left: auto;
  margin-right: 6px;
  padding: 0 6px;
  background-color: #d4d0c8;
  color: black;
  font-family: Tahoma, sans-serif;
  font-size: 11px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #ffffff;
  box-shadow: inset 1px 1px #808080;
  border-radius: 2px;
  min-width: 55px;
  user-select: none;
}