body.os-desktop {
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden;
    background: linear-gradient(135deg, #008080 0%, #006666 100%);
    font-family: "MS Sans Serif", "Microsoft Sans Serif", sans-serif;
    user-select: none;
}

.desktop {
    width: 100%;
    height: 100vh;
    position: relative;
    padding: 20px;
    box-sizing: border-box;
}

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

.desktop-icon {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: move;
    padding: 10px;
    border-radius: 3px;
    transition: background-color 0.1s;
    width: 80px;
    height: 80px;
}

.desktop-icon:hover {
    background-color: rgba(0, 0, 128, 0.3);
}

.desktop-icon.selected {
    background-color: rgba(0, 0, 128, 0.5);
}

.desktop-icon img {
    width: 48px;
    height: 48px;
    margin-bottom: 5px;
}

.desktop-icon span {
    color: white;
    font-size: 12px;
    text-align: center;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
    word-wrap: break-word;
    max-width: 80px;
}

.window {
    position: absolute;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #dfdfdf #000000 #000000 #dfdfdf;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
    min-width: 300px;
    min-height: 200px;
    display: none;
    z-index: 100;
}

.window.active {
    z-index: 200;
}

.resize-handle {
    position: absolute;
    z-index: 10;
}

.resize-right {
    right: 0;
    top: 0;
    bottom: 0;
    width: 5px;
    cursor: ew-resize;
}

.resize-bottom {
    left: 0;
    right: 0;
    bottom: 0;
    height: 5px;
    cursor: ns-resize;
}

.resize-corner {
    right: 0;
    bottom: 0;
    width: 15px;
    height: 15px;
    cursor: nwse-resize;
}

.window-titlebar {
    background: linear-gradient(90deg, #000080 0%, #1084d0 100%);
    color: white;
    padding: 3px 5px;
    font-weight: bold;
    font-size: 13px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
}

.window-title {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 5px;
}

.window-title img {
    width: 16px;
    height: 16px;
}

.window-controls {
    display: flex;
    gap: 2px;
}

.window-btn {
    width: 16px;
    height: 14px;
    background-color: #c0c0c0;
    border: 1px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    font-size: 10px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #000;
}

.window-btn:active {
    border-color: #000000 #ffffff #ffffff #000000;
}

.window-content {
    background-color: #ffffff;
    height: calc(100% - 25px);
    overflow-y: auto;
    padding: 20px;
    border: 2px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
}

.window-content::-webkit-scrollbar {
    width: 16px;
}

.window-content::-webkit-scrollbar-track {
    background: #c0c0c0;
}

.window-content::-webkit-scrollbar-thumb {
    background: #808080;
    border: 2px solid;
    border-color: #dfdfdf #000000 #000000 #dfdfdf;
}

.taskbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background-color: #c0c0c0;
    border-top: 2px solid #ffffff;
    display: flex;
    align-items: center;
    padding: 2px;
    z-index: 1000;
}

.start-button {
    height: 26px;
    padding: 0 15px;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    font-weight: bold;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
}

.start-button:active {
    border-color: #000000 #ffffff #ffffff #000000;
}

.start-button img {
    width: 16px;
    height: 16px;
}

.taskbar-tasks {
    flex: 1;
    display: flex;
    gap: 2px;
    margin-left: 5px;
}

.taskbar-btn {
    height: 22px;
    padding: 0 10px;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    font-size: 11px;
    cursor: pointer;
    display: flex;
    align-items: center;
    white-space: nowrap;
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.taskbar-btn:active,
.taskbar-btn.active {
    border-color: #000000 #ffffff #ffffff #000000;
    background-color: #808080;
    color: #ffffff;
}

.taskbar-time {
    padding: 0 10px;
    border: 1px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
    font-size: 11px;
    display: flex;
    align-items: center;
    height: 22px;
}

.icon-folder {
    background-color: #ffd700;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 2px solid #daa520;
    border-radius: 3px;
}

.icon-photo {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #000;
    border-radius: 3px;
    overflow: hidden;
    background-color: #ffffff;
}

.icon-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.icon-file {
    background-color: #ffffff;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 2px solid #000;
    border-radius: 3px;
}

.icon-github {
    background-color: #000000;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    border: 2px solid #333;
    border-radius: 3px;
}

.icon-game {
    background-color: #ff6b6b;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 2px solid #cc0000;
    border-radius: 3px;
}

.icon-snake {
    background-color: #4caf50;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 2px solid #2e7d32;
    border-radius: 3px;
}

.icon-chat {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    border: 2px solid #5568d3;
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.4);
}

.snake-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: #c0c0c0;
    border: 3px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    margin-bottom: 10px;
}

.snake-score, .snake-high-score {
    font-weight: bold;
    font-size: 16px;
    color: #000;
}

.snake-start-btn {
    padding: 8px 20px;
    background-color: #c0c0c0;
    border: 3px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
}

.snake-start-btn:active {
    border-color: #808080 #ffffff #ffffff #808080;
}

#snake-canvas {
    background-color: #000;
    border: 3px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    margin: 10px 0;
}

.snake-instructions {
    font-size: 12px;
    color: #666;
    margin-top: 10px;
}

.snake-game-over {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.snake-game-over-content {
    background-color: #c0c0c0;
    border: 3px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    padding: 30px;
    text-align: center;
    min-width: 250px;
}

.snake-game-over-content h2 {
    margin: 0 0 20px 0;
    color: #000;
    font-size: 24px;
}

.snake-game-over-content p {
    margin: 10px 0;
    font-size: 16px;
    font-weight: bold;
    color: #000;
}

.snake-restart-btn {
    margin-top: 20px;
    padding: 10px 30px;
    background-color: #c0c0c0;
    border: 3px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
}

.snake-restart-btn:active {
    border-color: #808080 #ffffff #ffffff #808080;
}

.minesweeper-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: #c0c0c0;
    border: 3px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    margin-bottom: 10px;
}

.mines-counter, .timer {
    background-color: #000;
    color: #ff0000;
    font-family: 'Courier New', monospace;
    font-size: 24px;
    font-weight: bold;
    padding: 5px 10px;
    border: 2px solid;
    border-color: #808080 #ffffff #ffffff #808080;
}

.reset-btn {
    width: 40px;
    height: 40px;
    font-size: 24px;
    background-color: #c0c0c0;
    border: 3px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reset-btn:active {
    border-color: #808080 #ffffff #ffffff #808080;
}

.minesweeper-board {
    display: inline-grid;
    gap: 0;
    background-color: #c0c0c0;
    border: 3px solid;
    border-color: #808080 #ffffff #ffffff #808080;
    padding: 5px;
}

.mine-cell {
    width: 30px;
    height: 30px;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #808080 #808080 #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
    cursor: pointer;
    user-select: none;
}

.mine-cell:active {
    border-color: #808080 #ffffff #ffffff #808080;
}

.mine-cell.revealed {
    background-color: #bfbfbf;
    border: 1px solid #7b7b7b;
    cursor: default;
}

.mine-cell.flagged::after {
    content: '🚩';
    font-size: 18px;
}

.mine-cell.revealed.mine::after {
    content: '💣';
    font-size: 18px;
}

.mine-cell.num-1 { color: #0000ff; }
.mine-cell.num-2 { color: #008000; }
.mine-cell.num-3 { color: #ff0000; }
.mine-cell.num-4 { color: #000080; }
.mine-cell.num-5 { color: #800000; }
.mine-cell.num-6 { color: #008080; }
.mine-cell.num-7 { color: #000000; }
.mine-cell.num-8 { color: #808080; }

.start-menu {
    position: fixed;
    bottom: 32px;
    left: 2px;
    width: 200px;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
    display: none;
    z-index: 2000;
}

.start-menu.show {
    display: block;
}

.start-menu-header {
    background: linear-gradient(90deg, #000080 0%, #1084d0 100%);
    color: white;
    padding: 5px 10px;
    font-weight: bold;
    font-size: 14px;
}

.start-menu-items {
    padding: 2px;
}

.start-menu-item {
    padding: 8px 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 12px;
}

.start-menu-item:hover {
    background-color: #000080;
    color: white;
}

.start-menu-item span:first-child {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

body.os-desktop.dark-mode {
    background: linear-gradient(135deg, #1a1a1a 0%, #0d0d0d 100%);
}

body.os-desktop.dark-mode .desktop-icon span {
    color: #e0e0e0;
}

body.os-desktop.dark-mode .window {
    background-color: #2b2b2b;
    border-color: #3a3a3a #000000 #000000 #3a3a3a;
}

body.os-desktop.dark-mode .window-titlebar {
    background: linear-gradient(90deg, #1a3a5a 0%, #2a5a8a 100%);
}

body.os-desktop.dark-mode .window-content {
    background-color: #1e1e1e;
    color: #e0e0e0;
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
}

body.os-desktop.dark-mode .window-content a {
    color: #6cb4ff;
}

body.os-desktop.dark-mode .window-btn {
    background-color: #2b2b2b;
    color: #e0e0e0;
}

body.os-desktop.dark-mode .taskbar {
    background-color: #2b2b2b;
    border-top: 2px solid #3a3a3a;
}

body.os-desktop.dark-mode .start-button {
    background-color: #2b2b2b;
    border-color: #3a3a3a #000000 #000000 #3a3a3a;
}

body.os-desktop.dark-mode .start-button:active {
    border-color: #000000 #3a3a3a #3a3a3a #000000;
}

body.os-desktop.dark-mode .taskbar-btn {
    background-color: #2b2b2b;
    color: #e0e0e0;
    border-color: #3a3a3a #000000 #000000 #3a3a3a;
}

body.os-desktop.dark-mode .taskbar-btn:active,
body.os-desktop.dark-mode .taskbar-btn.active {
    border-color: #000000 #3a3a3a #3a3a3a #000000;
    background-color: #1a1a1a;
}

body.os-desktop.dark-mode .taskbar-time {
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
    color: #e0e0e0;
}

body.os-desktop.dark-mode .start-menu {
    background-color: #2b2b2b;
    border-color: #3a3a3a #000000 #000000 #3a3a3a;
}

body.os-desktop.dark-mode .start-menu-header {
    background: linear-gradient(90deg, #1a3a5a 0%, #2a5a8a 100%);
}

body.os-desktop.dark-mode .start-menu-item {
    color: #e0e0e0;
}

body.os-desktop.dark-mode .start-menu-item:hover {
    background-color: #1a3a5a;
}

body.os-desktop.dark-mode .window-content::-webkit-scrollbar-track {
    background: #2b2b2b;
}

body.os-desktop.dark-mode .window-content::-webkit-scrollbar-thumb {
    background: #4a4a4a;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
}

body.os-desktop.dark-mode .minesweeper-header {
    background-color: #2b2b2b;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
}

body.os-desktop.dark-mode .reset-btn {
    background-color: #2b2b2b;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
}

body.os-desktop.dark-mode .reset-btn:active {
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
}

body.os-desktop.dark-mode .minesweeper-board {
    background-color: #2b2b2b;
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
}

body.os-desktop.dark-mode .mine-cell {
    background-color: #2b2b2b;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
}

body.os-desktop.dark-mode .mine-cell:active {
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
}

body.os-desktop.dark-mode .mine-cell.revealed {
    background-color: #1e1e1e;
    border: 1px solid #0a0a0a;
}

body.os-desktop.dark-mode .snake-header {
    background-color: #2b2b2b;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
}

body.os-desktop.dark-mode .snake-score,
body.os-desktop.dark-mode .snake-high-score {
    color: #e0e0e0;
}

body.os-desktop.dark-mode .snake-start-btn {
    background-color: #2b2b2b;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
    color: #e0e0e0;
}

body.os-desktop.dark-mode .snake-start-btn:active {
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
}

body.os-desktop.dark-mode #snake-canvas {
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
}

body.os-desktop.dark-mode .snake-instructions {
    color: #999;
}

body.os-desktop.dark-mode .snake-game-over-content {
    background-color: #2b2b2b;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
}

body.os-desktop.dark-mode .snake-game-over-content h2 {
    color: #e0e0e0;
}

body.os-desktop.dark-mode .snake-game-over-content p {
    color: #e0e0e0;
}

body.os-desktop.dark-mode .snake-restart-btn {
    background-color: #2b2b2b;
    border-color: #3a3a3a #0a0a0a #0a0a0a #3a3a3a;
    color: #e0e0e0;
}

body.os-desktop.dark-mode .snake-restart-btn:active {
    border-color: #0a0a0a #3a3a3a #3a3a3a #0a0a0a;
}

body.os-desktop.dark-mode .chat-messages {
    background: linear-gradient(to bottom, #1a1d29 0%, #252a3a 100%);
}

body.os-desktop.dark-mode .chat-message.bot {
    background-color: #2d3748;
    color: #e2e8f0;
    border-color: #4a5568;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

body.os-desktop.dark-mode .chat-message.user {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

body.os-desktop.dark-mode .chat-input-container {
    background: linear-gradient(to top, #1a202c 0%, #2d3748 100%);
    border-top-color: #4a5568;
}

body.os-desktop.dark-mode .chat-input {
    background-color: #2d3748;
    color: #e2e8f0;
    border-color: #4a5568;
}

body.os-desktop.dark-mode .chat-input::placeholder {
    color: #a0aec0;
}

body.os-desktop.dark-mode .chat-input:focus {
    border-color: #667eea;
    background-color: #374151;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

body.os-desktop.dark-mode .chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
}

body.os-desktop.dark-mode .chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}