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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100vh;
}

/* Desktop */
#desktop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 40px;
    padding: 20px;
}

#icons-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-content: flex-start;
}

.desktop-icon {
    width: 80px;
    text-align: center;
    cursor: pointer;
    user-select: none;
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.desktop-icon:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.desktop-icon-image {
    font-size: 48px;
    margin-bottom: 5px;
}

.desktop-icon-label {
    font-size: 12px;
    color: white;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* Taskbar */
#taskbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    padding: 0 10px;
    z-index: 9999;
}

#start-button {
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    color: white;
    cursor: pointer;
    border-radius: 4px;
    margin-right: 10px;
    transition: background 0.2s;
}

#start-button:hover {
    background: rgba(255, 255, 255, 0.2);
}

#taskbar-apps {
    flex: 1;
    display: flex;
    gap: 5px;
}

.taskbar-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 12px;
    color: white;
    cursor: pointer;
    border-radius: 4px;
    font-size: 14px;
    transition: background 0.2s;
}

.taskbar-item:hover {
    background: rgba(255, 255, 255, 0.2);
}

#taskbar-time {
    color: white;
    padding: 8px 12px;
    font-size: 12px;
    text-align: right;
    min-width: 140px;
}

.taskbar-time-display {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1.2;
}

.taskbar-time-time {
    font-size: 14px;
    font-weight: 500;
    font-family: 'Courier New', monospace;
}

.taskbar-time-date {
    font-size: 11px;
    opacity: 0.9;
    margin-top: 1px;
}

/* Start Menu */
#start-menu {
    position: fixed;
    bottom: 45px;
    left: 10px;
    width: 300px;
    background: rgba(0, 0, 0, 0.95);
    border-radius: 8px;
    padding: 10px;
    z-index: 10000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

#start-menu.hidden {
    display: none;
}

.start-menu-header {
    color: white;
    font-size: 16px;
    font-weight: bold;
    padding: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 10px;
}

.start-menu-category {
    margin-bottom: 5px;
}

.start-menu-category-header {
    color: rgba(255, 255, 255, 0.7);
    font-size: 12px;
    font-weight: 600;
    padding: 8px 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 5px;
}

.start-menu-category-items {
    margin-bottom: 5px;
}

.start-menu-item {
    color: white;
    padding: 10px 12px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: 8px;
}

.start-menu-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.app-icon {
    font-size: 20px;
}

/* Windows */
.window {
    position: absolute;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 300px;
    min-height: 200px;
}

.window.minimized {
    display: none;
}

.window.maximized {
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: calc(100% - 40px) !important;
    border-radius: 0;
}

/* Window Resizers */
.resizer {
    position: absolute;
    z-index: 1;
}

.resizer-n {
    top: 0;
    left: 5px;
    right: 5px;
    height: 5px;
    cursor: ns-resize;
}

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

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

.resizer-w {
    left: 0;
    top: 5px;
    bottom: 5px;
    width: 5px;
    cursor: ew-resize;
}

.resizer-nw {
    top: 0;
    left: 0;
    width: 10px;
    height: 10px;
    cursor: nw-resize;
}

.resizer-ne {
    top: 0;
    right: 0;
    width: 10px;
    height: 10px;
    cursor: ne-resize;
}

.resizer-sw {
    bottom: 0;
    left: 0;
    width: 10px;
    height: 10px;
    cursor: sw-resize;
}

.resizer-se {
    bottom: 0;
    right: 0;
    width: 10px;
    height: 10px;
    cursor: se-resize;
}

.window-titlebar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
}

.window-title {
    font-weight: 600;
    font-size: 14px;
}

.window-controls {
    display: flex;
    gap: 5px;
}

.window-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.2s;
}

.window-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.window-btn.close:hover {
    background: #e74c3c;
}

.window-content {
    flex: 1;
    overflow: auto;
    background: #f5f5f5;
}

/* File Manager */
.file-manager {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.file-manager-toolbar {
    background: white;
    padding: 10px;
    border-bottom: 1px solid #ddd;
    display: flex;
    gap: 10px;
    align-items: center;
}

.file-manager-toolbar button {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.file-manager-toolbar button:hover {
    background: #f0f0f0;
}

.file-manager-toolbar input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.file-manager-content {
    flex: 1;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 20px;
    align-content: flex-start;
    overflow: auto;
    background: white;
}

.file-item {
    text-align: center;
    cursor: pointer;
    padding: 10px;
    border-radius: 4px;
    transition: background 0.2s;
}

.file-item:hover {
    background: #f0f0f0;
}

.file-item-icon {
    font-size: 48px;
    margin-bottom: 5px;
}

.file-item-name {
    font-size: 12px;
    word-wrap: break-word;
}

/* Context Menu */
.context-menu {
    position: fixed;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10001;
    min-width: 150px;
}

.context-menu-item {
    padding: 10px 15px;
    cursor: pointer;
    transition: background 0.2s;
}

.context-menu-item:hover {
    background: #f0f0f0;
}

/* Notepad */
.notepad {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.notepad-toolbar {
    background: white;
    padding: 10px;
    border-bottom: 1px solid #ddd;
    display: flex;
    gap: 10px;
}

.notepad-toolbar button {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.notepad-toolbar button:hover {
    background: #f0f0f0;
}

.notepad-textarea {
    flex: 1;
    border: none;
    padding: 15px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 14px;
    resize: none;
    outline: none;
}

/* Calculator */
.calculator {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #2c3e50;
    padding: 20px;
}

.calc-mode-toggle {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 10px;
}

.mode-toggle-btn {
    padding: 8px 16px;
    border: 1px solid #ecf0f1;
    background: transparent;
    color: #ecf0f1;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.mode-toggle-btn:hover {
    background: #ecf0f1;
    color: #2c3e50;
}

.calc-display {
    background: #34495e;
    color: white;
    font-size: 32px;
    padding: 20px;
    text-align: right;
    border-radius: 8px;
    margin-bottom: 20px;
    min-height: 60px;
    word-wrap: break-word;
}

.calc-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.calc-buttons button {
    padding: 20px;
    font-size: 18px;
    border: none;
    border-radius: 8px;
    background: #ecf0f1;
    cursor: pointer;
    transition: background 0.2s;
}

.calc-buttons button:hover {
    background: #bdc3c7;
}

.calc-buttons button.operator {
    background: #3498db;
    color: white;
}

.calc-buttons button.operator:hover {
    background: #2980b9;
}

.calc-buttons-sci {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.calc-buttons-sci button {
    padding: 15px 10px;
    font-size: 14px;
    border: none;
    border-radius: 6px;
    background: #ecf0f1;
    cursor: pointer;
    transition: background 0.2s;
}

.calc-buttons-sci button:hover {
    background: #bdc3c7;
}

.calc-buttons-sci button.operator {
    background: #3498db;
    color: white;
}

.calc-buttons-sci button.operator:hover {
    background: #2980b9;
}

/* Minesweeper */
.minesweeper {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 20px;
    background: #ecf0f1;
}

.mine-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.mine-toolbar button {
    padding: 8px 16px;
    border: 1px solid #bdc3c7;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.mine-toolbar button:hover {
    background: #f0f0f0;
}

.mine-board {
    display: grid;
    gap: 2px;
    background: #bdc3c7;
    padding: 2px;
    border-radius: 4px;
    width: fit-content;
    margin: 0 auto;
}

.mine-cell {
    width: 30px;
    height: 30px;
    background: #95a5a6;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: bold;
    font-size: 14px;
    user-select: none;
    transition: background 0.1s;
}

.mine-cell:hover:not(.revealed) {
    background: #7f8c8d;
}

.mine-cell.revealed {
    background: #ecf0f1;
    cursor: default;
}

/* Browser */
.browser {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.browser-toolbar {
    background: white;
    padding: 10px;
    border-bottom: 1px solid #ddd;
    display: flex;
    gap: 5px;
    align-items: center;
}

.browser-toolbar button {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.browser-toolbar button:hover:not(:disabled) {
    background: #f0f0f0;
}

.browser-toolbar button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.browser-toolbar input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.browser-content {
    flex: 1;
    background: white;
    overflow: hidden;
}

.browser-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.browser-home {
    padding: 40px;
    text-align: center;
}

.browser-home h1 {
    margin-bottom: 20px;
    color: #2c3e50;
}

.browser-home p {
    color: #7f8c8d;
    margin-bottom: 40px;
}

.browser-quicklinks {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin: 20px auto;
    max-width: 400px;
}

.browser-quicklinks h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.browser-quicklinks button {
    margin: 5px;
    padding: 10px 20px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.browser-quicklinks button:hover {
    background: #e9ecef;
}

.browser-notice {
    background: #fff3cd;
    border: 1px solid #ffc107;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    color: #856404;
    text-align: left;
}

.browser-error {
    padding: 40px;
    text-align: center;
}

.browser-error h2 {
    color: #e74c3c;
    margin-bottom: 20px;
}

.browser-error p {
    color: #7f8c8d;
    margin-bottom: 10px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    #desktop {
        padding: 0;
        bottom: 50px;
    }

    #icons-container {
        gap: 15px;
    }

    .desktop-category {
        margin-bottom: 10px;
    }

    .desktop-category-header {
        font-size: 13px;
        margin-bottom: 8px;
    }

    .desktop-category-icons {
        gap: 12px;
    }

    .desktop-icon {
        width: 70px;
    }

    .desktop-icon-image {
        font-size: 36px;
    }

    .desktop-icon-label {
        font-size: 11px;
    }

    #taskbar {
        height: 50px;
        padding: 0 5px;
    }

    #start-button {
        padding: 10px 12px;
        font-size: 12px;
    }

    .taskbar-item {
        padding: 10px 8px;
        font-size: 12px;
    }

    #taskbar-time {
        padding: 10px 8px;
        font-size: 10px;
        min-width: 115px;
    }

    .taskbar-time-time {
        font-size: 12px;
    }

    .taskbar-time-date {
        font-size: 9px;
    }

    #start-menu {
        width: 250px;
        bottom: 55px;
    }

    .window {
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 50px !important;
        width: 100% !important;
        height: calc(100% - 50px) !important;
        max-width: none !important;
        border-radius: 0;
    }

    .window.maximized {
        height: calc(100% - 50px) !important;
        bottom: 50px !important;
    }

    .window-titlebar {
        padding: 12px;
    }

    .window-title {
        font-size: 13px;
    }

    .window-btn {
        width: 35px;
        height: 35px;
        font-size: 18px;
    }

    /* Hide minimize and maximize buttons on mobile */
    .window-btn.minimize,
    .window-btn.maximize {
        display: none;
    }

    /* Hide resize handles on mobile */
    .resizer {
        display: none;
    }

    /* App-specific mobile adjustments */
    .file-manager-toolbar,
    .notepad-toolbar,
    .browser-toolbar {
        flex-wrap: wrap;
    }

    .file-manager-toolbar button,
    .notepad-toolbar button,
    .browser-toolbar button {
        padding: 10px;
        font-size: 12px;
    }

    .file-manager-toolbar input,
    .browser-toolbar input {
        width: 100%;
        margin-top: 5px;
    }

    .file-item {
        padding: 8px;
    }

    .file-item-icon {
        font-size: 36px;
    }

    .calc-buttons button {
        padding: 15px;
        font-size: 16px;
    }

    .mine-cell {
        width: 25px;
        height: 25px;
        font-size: 12px;
    }

    .calculator {
        padding: 15px;
    }

    .calc-display {
        font-size: 24px;
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .desktop-category-header {
        font-size: 12px;
    }

    .desktop-category-icons {
        gap: 10px;
    }

    .desktop-icon {
        width: 60px;
    }

    .desktop-icon-image {
        font-size: 32px;
    }

    .taskbar-item {
        padding: 10px 6px;
        font-size: 11px;
        max-width: 80px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .file-manager-content {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 10px;
        padding: 10px;
    }

    .mine-cell {
        width: 22px;
        height: 22px;
        font-size: 11px;
    }
}

/* Terminal */
.terminal {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #1e1e1e;
    color: #00ff00;
    font-family: 'Courier New', Courier, monospace;
    padding: 15px;
}

.terminal-output {
    flex: 1;
    overflow-y: auto;
    margin-bottom: 10px;
}

.terminal-line {
    margin-bottom: 5px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.terminal-input-line {
    display: flex;
    align-items: center;
    gap: 5px;
}

.terminal-prompt {
    color: #00ff00;
    font-weight: bold;
}

.terminal-input {
    flex: 1;
    background: transparent;
    border: none;
    color: #00ff00;
    font-family: inherit;
    font-size: 14px;
    outline: none;
}

/* Settings */
.settings {
    display: flex;
    height: 100%;
    background: #f5f5f5;
}

.settings-sidebar {
    width: 200px;
    background: white;
    border-right: 1px solid #ddd;
    padding: 20px 0;
}

.settings-nav-item {
    padding: 12px 20px;
    cursor: pointer;
    transition: background 0.2s;
}

.settings-nav-item:hover {
    background: #f0f0f0;
}

.settings-nav-item.active {
    background: #e3f2fd;
    border-left: 3px solid #2196f3;
}

.settings-content {
    flex: 1;
    overflow-y: auto;
    background: white;
}

.settings-section {
    padding: 30px;
}

.settings-section h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

.settings-group {
    margin-bottom: 25px;
}

.settings-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.settings-group select,
.settings-group input[type="text"] {
    width: 100%;
    max-width: 300px;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.settings-group button {
    padding: 10px 20px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
    margin-right: 10px;
}

.settings-group button:hover {
    background: #f0f0f0;
}

.settings-group button.danger-btn {
    background: #e74c3c;
    color: white;
    border-color: #e74c3c;
}

.settings-group button.danger-btn:hover {
    background: #c0392b;
}

.storage-bar {
    width: 100%;
    max-width: 400px;
    height: 20px;
    background: #ecf0f1;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.storage-bar-fill {
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s;
}

.about-info {
    line-height: 1.6;
}

.about-info h3 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.about-info h4 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: #34495e;
}

.about-info ul {
    list-style-position: inside;
}

.about-info li {
    margin-bottom: 5px;
}

/* Clock */
.clock-app {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: white;
}

.clock-tabs {
    display: flex;
    border-bottom: 1px solid #ddd;
    background: #f5f5f5;
}

.clock-tab {
    flex: 1;
    padding: 12px;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 14px;
}

.clock-tab:hover {
    background: rgba(0, 0, 0, 0.05);
}

.clock-tab.active {
    background: white;
    border-bottom: 2px solid #667eea;
}

.clock-content {
    flex: 1;
    overflow-y: auto;
}

.clock-display-container {
    padding: 40px;
    text-align: center;
}

.clock-time {
    font-size: 72px;
    font-weight: 300;
    color: #2c3e50;
    margin-bottom: 10px;
}

.clock-date {
    font-size: 24px;
    color: #7f8c8d;
    margin-bottom: 5px;
}

.clock-timezone {
    font-size: 18px;
    color: #95a5a6;
}

.timer-display,
.stopwatch-display {
    font-size: 64px;
    font-weight: 300;
    color: #2c3e50;
    margin-bottom: 30px;
}

.timer-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
}

.timer-controls input {
    width: 100px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    text-align: center;
}

.timer-buttons,
.stopwatch-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.timer-buttons button,
.stopwatch-buttons button {
    padding: 12px 24px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background 0.2s;
}

.timer-buttons button:hover,
.stopwatch-buttons button:hover {
    background: #f0f0f0;
}

.alarm-container {
    max-width: 400px;
    margin: 0 auto;
}

.alarm-controls {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.alarm-controls input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.alarm-controls button {
    padding: 10px 20px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.alarm-controls button:hover {
    background: #f0f0f0;
}

.alarm-status {
    margin-top: 20px;
    padding: 15px;
    border-radius: 4px;
    font-size: 16px;
}

/* World Clock */
.worldclock-app {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: white;
}

.worldclock-header {
    padding: 20px;
    border-bottom: 1px solid #ddd;
    background: #f8f9fa;
}

.worldclock-header h2 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-weight: 300;
}

.worldclock-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.timezone-select {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    background: white;
}

.add-timezone-btn {
    padding: 10px 16px;
    border: 1px solid #667eea;
    background: #667eea;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}

.add-timezone-btn:hover {
    background: #5a6fd8;
}

.worldclock-list {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.clock-item {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.clock-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.clock-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.clock-city {
    color: #2c3e50;
    font-size: 18px;
    font-weight: 500;
    margin: 0;
}

.remove-btn {
    background: #e74c3c;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-btn:hover {
    background: #c0392b;
}

.clock-item .clock-time {
    font-size: 32px;
    font-weight: 300;
    color: #2c3e50;
    margin-bottom: 5px;
    font-family: 'Courier New', monospace;
}

.clock-item .clock-date {
    font-size: 14px;
    color: #7f8c8d;
    margin-bottom: 5px;
}

.clock-offset {
    font-size: 12px;
    color: #95a5a6;
    background: #ecf0f1;
    padding: 2px 6px;
    border-radius: 3px;
    display: inline-block;
}

/* Responsive design for mobile */
@media (max-width: 768px) {
    .worldclock-list {
        grid-template-columns: 1fr;
        padding: 10px;
        gap: 15px;
    }
    
    .clock-item {
        padding: 15px;
    }
    
    .clock-item .clock-time {
        font-size: 28px;
    }
    
    .worldclock-controls {
        flex-direction: column;
        gap: 10px;
    }
    
    .timezone-select,
    .add-timezone-btn {
        width: 100%;
    }
}

/* Paint */
.paint-app {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #f5f5f5;
}

.paint-toolbar {
    display: flex;
    gap: 15px;
    padding: 10px;
    background: white;
    border-bottom: 1px solid #ddd;
    flex-wrap: wrap;
}

.paint-tools {
    display: flex;
    gap: 5px;
}

.paint-tool {
    width: 40px;
    height: 40px;
    border: 2px solid transparent;
    background: #f0f0f0;
    border-radius: 4px;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.2s;
}

.paint-tool:hover {
    background: #e0e0e0;
}

.paint-tool.active {
    border-color: #667eea;
    background: #e3f2fd;
}

.paint-color-picker {
    display: flex;
    align-items: center;
    gap: 10px;
}

.paint-preset-colors {
    display: flex;
    gap: 5px;
}

.color-swatch {
    width: 30px;
    height: 30px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid #ddd;
    transition: transform 0.2s;
}

.color-swatch:hover {
    transform: scale(1.1);
}

.paint-size-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.paint-size-control label {
    font-size: 14px;
}

.paint-size-control input[type="range"] {
    width: 100px;
}

.paint-actions {
    display: flex;
    gap: 5px;
}

.paint-actions button {
    padding: 8px 12px;
    border: 1px solid #ddd;
    background: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.paint-actions button:hover {
    background: #f0f0f0;
}

.paint-canvas-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow: auto;
}

#paint-canvas {
    border: 1px solid #ddd;
    background: white;
    cursor: crosshair;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Music Player */
.music-player {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
}

.music-artwork {
    width: 200px;
    height: 200px;
    margin: 0 auto 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
}

.music-info {
    text-align: center;
    margin-bottom: 30px;
}

.music-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.music-artist {
    font-size: 16px;
    opacity: 0.8;
}

.music-progress {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
}

#progress-bar {
    flex: 1;
}

.music-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.music-controls button {
    width: 50px;
    height: 50px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    transition: background 0.2s;
}

.music-controls button:hover {
    background: rgba(255, 255, 255, 0.3);
}

.music-controls button:nth-child(2) {
    width: 60px;
    height: 60px;
    font-size: 28px;
}

.music-volume {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
}

#volume-slider {
    flex: 1;
}

.music-playlist-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.music-playlist-header h3 {
    margin: 0;
}

.music-playlist-header button {
    padding: 8px 16px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.music-playlist-header button:hover {
    background: rgba(255, 255, 255, 0.3);
}

.music-playlist {
    flex: 1;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    padding: 10px;
}

.playlist-empty {
    text-align: center;
    padding: 40px;
    opacity: 0.6;
}

.playlist-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.playlist-item:hover {
    background: rgba(255, 255, 255, 0.15);
}

.playlist-item.active {
    background: rgba(255, 255, 255, 0.25);
}

.playlist-item-info {
    flex: 1;
}

.playlist-item-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.playlist-item-artist {
    font-size: 12px;
    opacity: 0.8;
}

.playlist-item-remove {
    background: transparent;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.playlist-item-remove:hover {
    opacity: 1;
}

/* Help App */
.help-app {
    display: flex;
    height: 100%;
    background: #f5f5f5;
}

.help-sidebar {
    width: 220px;
    background: white;
    border-right: 1px solid #ddd;
    padding: 20px 0;
    overflow-y: auto;
}

.help-nav-item {
    padding: 12px 20px;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 14px;
}

.help-nav-item:hover {
    background: #f0f0f0;
}

.help-nav-item.active {
    background: #e3f2fd;
    border-left: 3px solid #667eea;
}

.help-content {
    flex: 1;
    overflow-y: auto;
    background: white;
}

.help-section {
    padding: 40px;
    max-width: 900px;
}

.help-section h1 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 32px;
}

.help-section h2 {
    color: #34495e;
    margin-top: 30px;
    margin-bottom: 15px;
    font-size: 24px;
}

.help-section h3 {
    color: #555;
    margin-top: 20px;
    margin-bottom: 10px;
    font-size: 18px;
}

.help-section p {
    line-height: 1.6;
    margin-bottom: 15px;
    color: #555;
}

.help-section ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.help-section ul li {
    margin-bottom: 8px;
    line-height: 1.6;
    color: #555;
}

.help-section strong {
    color: #2c3e50;
}

.code-block {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 20px 0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 14px;
    line-height: 1.5;
}

.code-block code {
    background: transparent;
    padding: 0;
}

code {
    background: #ecf0f1;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    color: #e74c3c;
}

.command-list {
    margin: 20px 0;
}

.command-list dt {
    font-weight: bold;
    margin-top: 15px;
    color: #2c3e50;
}

.command-list dt code {
    font-size: 14px;
    background: #667eea;
    color: white;
    padding: 4px 8px;
}

.command-list dd {
    margin-left: 20px;
    margin-top: 5px;
    color: #555;
    line-height: 1.6;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.app-card {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    border: 2px solid #e9ecef;
    font-weight: 500;
    color: #495057;
}

.help-note {
    background: #e3f2fd;
    border-left: 4px solid #2196f3;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 4px;
}

.help-note strong {
    color: #1976d2;
}

.help-warning {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 4px;
    color: #856404;
}

.help-warning strong {
    color: #856404;
}

.help-tip {
    background: #d4edda;
    border-left: 4px solid #28a745;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 4px;
    color: #155724;
}

.help-tip strong {
    color: #155724;
}

/* Mobile adjustments for Help app */
@media (max-width: 768px) {
    .help-app {
        flex-direction: column;
    }

    .help-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #ddd;
        padding: 10px 0;
        max-height: 150px;
    }

    .help-nav-item {
        padding: 10px 15px;
        font-size: 13px;
    }

    .help-section {
        padding: 20px;
    }

    .help-section h1 {
        font-size: 24px;
    }

    .help-section h2 {
        font-size: 20px;
    }

    .help-section h3 {
        font-size: 16px;
    }

    .code-block {
        padding: 15px;
        font-size: 12px;
    }

    .app-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
    }
}

/* Snake Game */
.snake-game {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: #0f0f1e;
    height: 100%;
}

.snake-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 400px;
    margin-bottom: 20px;
    gap: 15px;
}

.snake-score {
    color: #4ecca3;
    font-size: 18px;
    font-weight: bold;
}

.snake-header button {
    padding: 8px 16px;
    border: none;
    background: #4ecca3;
    color: #0f0f1e;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.2s;
}

.snake-header button:hover:not(:disabled) {
    background: #45a293;
}

.snake-header button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#snake-canvas {
    border: 2px solid #4ecca3;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(78, 204, 163, 0.3);
}

.snake-controls {
    margin-top: 20px;
    text-align: center;
    color: #4ecca3;
}

.snake-mobile-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    margin-top: 15px;
}

.snake-mobile-controls button {
    width: 50px;
    height: 50px;
    border: none;
    background: #4ecca3;
    color: #0f0f1e;
    font-size: 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

.snake-mobile-controls button:hover {
    background: #45a293;
}

.snake-mobile-controls div {
    display: flex;
    gap: 5px;
}

/* Tic-Tac-Toe */
.tictactoe-game {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100%;
}

.tictactoe-header {
    text-align: center;
    margin-bottom: 20px;
    color: white;
}

.tictactoe-header h2 {
    margin-bottom: 15px;
}

.tictactoe-mode {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    justify-content: center;
}

.tictactoe-mode button {
    padding: 8px 16px;
    border: 2px solid white;
    background: transparent;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

.tictactoe-mode button.active,
.tictactoe-mode button:hover {
    background: white;
    color: #667eea;
}

.tictactoe-status {
    font-size: 18px;
    font-weight: bold;
}

.tictactoe-board {
    display: grid;
    grid-template-columns: repeat(3, 100px);
    grid-template-rows: repeat(3, 100px);
    gap: 10px;
    margin-bottom: 20px;
}

.ttt-cell {
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    font-weight: bold;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
    user-select: none;
}

.ttt-cell:hover {
    background: rgba(255, 255, 255, 0.8);
}

.ttt-reset {
    padding: 12px 24px;
    border: 2px solid white;
    background: white;
    color: #667eea;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.2s;
}

.ttt-reset:hover {
    background: transparent;
    color: white;
}

/* Memory Game */
.memory-game {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    height: 100%;
}

.memory-header {
    text-align: center;
    margin-bottom: 20px;
    color: white;
}

.memory-header h2 {
    margin-bottom: 15px;
}

.memory-stats {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: bold;
}

.memory-header button {
    padding: 10px 20px;
    border: 2px solid white;
    background: white;
    color: #f5576c;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s;
}

.memory-header button:hover {
    background: transparent;
    color: white;
}

.memory-board {
    display: grid;
    grid-template-columns: repeat(4, 80px);
    grid-template-rows: repeat(4, 80px);
    gap: 10px;
}

.memory-card {
    perspective: 1000px;
    cursor: pointer;
}

.memory-card.matched {
    cursor: default;
}

.memory-card-inner {
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
    position: relative;
}

.memory-card.flipped .memory-card-inner {
    transform: rotateY(180deg);
}

.memory-card-front,
.memory-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 40px;
    font-weight: bold;
}

.memory-card-front {
    background: white;
    color: #f5576c;
}

.memory-card-back {
    background: #ffe66d;
    transform: rotateY(180deg);
}

.memory-card.matched .memory-card-front,
.memory-card.matched .memory-card-back {
    background: rgba(255, 255, 255, 0.3);
}

/* Mobile adjustments for games */
@media (max-width: 768px) {
    .tictactoe-board {
        grid-template-columns: repeat(3, 80px);
        grid-template-rows: repeat(3, 80px);
    }

    .ttt-cell {
        font-size: 36px;
    }

    .memory-board {
        grid-template-columns: repeat(4, 70px);
        grid-template-rows: repeat(4, 70px);
        gap: 8px;
    }

    .memory-card-front,
    .memory-card-back {
        font-size: 32px;
    }

    #snake-canvas {
        max-width: 100%;
        height: auto;
    }
}

@media (max-width: 480px) {
    .tictactoe-board {
        grid-template-columns: repeat(3, 70px);
        grid-template-rows: repeat(3, 70px);
        gap: 8px;
    }

    .ttt-cell {
        font-size: 32px;
    }

    .memory-board {
        grid-template-columns: repeat(4, 60px);
        grid-template-rows: repeat(4, 60px);
        gap: 6px;
    }

    .memory-card-front,
    .memory-card-back {
        font-size: 28px;
    }
}

/* Folder Windows */
.folder-content {
    padding: 20px;
    background: white;
    height: 100%;
    overflow: auto;
}

.folder-icons {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 20px;
    align-content: flex-start;
}

.folder-icon {
    text-align: center;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background 0.2s;
    user-select: none;
}

.folder-icon:hover {
    background: #f0f0f0;
}

.folder-icon-image {
    font-size: 48px;
    margin-bottom: 5px;
}

.folder-icon-label {
    font-size: 12px;
    color: #2c3e50;
    word-wrap: break-word;
}

/* AI Chat App */
.ai-chat-app {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #f8f9fa;
}

.ai-chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ai-chat-header h2 {
    margin: 0;
    font-size: 20px;
}

.ai-settings-btn,
.ai-back-btn {
    padding: 8px 16px;
    border: 2px solid white;
    background: transparent;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.ai-settings-btn:hover,
.ai-back-btn:hover {
    background: white;
    color: #667eea;
}

/* AI Setup */
.ai-setup {
    flex: 1;
    overflow-y: auto;
    padding: 30px;
}

.ai-setup-content {
    max-width: 600px;
    margin: 0 auto;
}

.ai-setup-content h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.ai-setup-content p {
    color: #7f8c8d;
    margin-bottom: 30px;
}

.ai-setup-form {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 25px;
}

.ai-setup-form label {
    display: block;
    margin-top: 15px;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.ai-setup-form label:first-child {
    margin-top: 0;
}

.ai-setup-form select,
.ai-setup-form input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.ai-save-btn {
    width: 100%;
    padding: 12px;
    margin-top: 20px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: transform 0.2s;
}

.ai-save-btn:hover {
    transform: translateY(-2px);
}

.ai-setup-info {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ai-setup-info h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.ai-setup-info ul {
    list-style: none;
    padding: 0;
}

.ai-setup-info li {
    margin-bottom: 10px;
    color: #555;
}

.ai-setup-info a {
    color: #667eea;
    text-decoration: none;
}

.ai-setup-info a:hover {
    text-decoration: underline;
}

.ai-privacy-note {
    margin-top: 15px;
    padding: 10px;
    background: #e3f2fd;
    border-radius: 4px;
    color: #1976d2;
    font-size: 13px;
}

/* AI Chat Container */
.ai-chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: white;
}

.ai-welcome-message {
    text-align: center;
    padding: 60px 20px;
    color: #7f8c8d;
}

.ai-welcome-message h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.ai-message {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-message-user {
    flex-direction: row-reverse;
}

.ai-message-avatar {
    font-size: 32px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ai-message-content {
    flex: 1;
    max-width: 70%;
}

.ai-message-text {
    padding: 12px 16px;
    border-radius: 12px;
    line-height: 1.5;
}

.ai-message-user .ai-message-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.ai-message-assistant .ai-message-text {
    background: #f0f0f0;
    color: #2c3e50;
}

.ai-message-text code {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
}

.ai-message-user .ai-message-text code {
    background: rgba(255, 255, 255, 0.2);
}

.ai-chat-input-container {
    padding: 15px;
    background: white;
    border-top: 1px solid #ddd;
    display: flex;
    gap: 10px;
}

.ai-chat-input-container textarea {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    resize: none;
    font-family: inherit;
    font-size: 14px;
}

.ai-chat-input-container textarea:focus {
    outline: none;
    border-color: #667eea;
}

.ai-send-btn {
    padding: 10px 20px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s;
    white-space: nowrap;
}

.ai-send-btn:hover:not(:disabled) {
    transform: translateY(-2px);
}

.ai-send-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Mobile adjustments for AI Chat */
@media (max-width: 768px) {
    .ai-chat-header h2 {
        font-size: 16px;
    }

    .ai-setup {
        padding: 15px;
    }

    .ai-message-content {
        max-width: 85%;
    }

    .ai-message-avatar {
        font-size: 24px;
        width: 32px;
        height: 32px;
    }
}

/* Mobile App Grid Layout */
.mobile-app-grid {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    position: relative;
}

.mobile-pages-container {
    display: flex;
    height: 100%;
    width: 100%;
    transition: transform 0.3s ease;
    touch-action: pan-y;
}

.mobile-page {
    min-width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(5, 1fr);
    gap: 20px;
    padding: 40px 20px;
    align-content: start;
}

.mobile-app-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    padding: 10px;
    border-radius: 16px;
    transition: background-color 0.2s;
}

.mobile-app-icon:active {
    background-color: rgba(255, 255, 255, 0.2);
}

.mobile-app-icon-image {
    font-size: 56px;
    margin-bottom: 8px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.mobile-app-icon-label {
    font-size: 12px;
    color: white;
    text-align: center;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    word-wrap: break-word;
    max-width: 100%;
}

.mobile-page-indicator {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.page-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    transition: all 0.3s;
}

.page-dot.active {
    background: white;
    width: 20px;
    border-radius: 4px;
}

.mobile-nav-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    cursor: pointer;
    z-index: 100;
    transition: all 0.3s;
    user-select: none;
}

.mobile-nav-arrow:active {
    background: rgba(255, 255, 255, 0.4);
    transform: translateY(-50%) scale(0.9);
}

.mobile-nav-left {
    left: 10px;
}

.mobile-nav-right {
    right: 10px;
}

/* Mobile specific adjustments */
@media (max-width: 480px) {
    .mobile-page {
        grid-template-columns: repeat(4, 1fr);
        grid-template-rows: repeat(5, 1fr);
        gap: 15px;
        padding: 30px 15px;
    }

    .mobile-app-icon-image {
        font-size: 48px;
    }

    .mobile-app-icon-label {
        font-size: 11px;
    }
}

/* Custom App Builder */
.custom-app-builder {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #f8f9fa;
}

.builder-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    text-align: center;
}

.builder-header h2 {
    margin: 0 0 8px 0;
    font-size: 24px;
}

.builder-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 14px;
}

.builder-container {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 20px;
    overflow: auto;
}

.builder-form,
.builder-apps {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.builder-form h3,
.builder-apps h3 {
    margin: 0 0 20px 0;
    color: #2c3e50;
    font-size: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid #667eea;
}

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

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #2c3e50;
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
    font-family: 'Courier New', monospace;
}

.form-group small {
    display: block;
    margin-top: 4px;
    color: #7f8c8d;
    font-size: 12px;
}

.create-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.create-btn:hover {
    transform: translateY(-2px);
}

.custom-apps-list,
#custom-ext-apps-list,
#custom-apps-list {
    max-height: 500px;
    overflow-y: auto;
}

.empty-message {
    text-align: center;
    color: #95a5a6;
    padding: 40px 20px;
    font-style: italic;
}

.custom-app-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    margin-bottom: 10px;
    background: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e9ecef;
}

.app-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.app-icon-display {
    font-size: 28px;
}

.app-name-display {
    font-weight: 600;
    color: #2c3e50;
}

.app-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.app-desc {
    color: #7f8c8d;
    font-size: 12px;
}

.app-url {
    color: #3498db;
    font-size: 11px;
    word-break: break-all;
}

.app-actions {
    display: flex;
    gap: 8px;
}

.launch-btn,
.delete-btn {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.launch-btn {
    background: #667eea;
    color: white;
}

.launch-btn:hover {
    background: #5568d3;
}

.delete-btn {
    background: #e74c3c;
    color: white;
}

.delete-btn:hover {
    background: #c0392b;
}

@media (max-width: 768px) {
    .builder-container {
        grid-template-columns: 1fr;
    }
}