:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --accent: #f093fb;
    --success: #11998e;
    --warning: #f5576c;
    --danger: #ff6b6b;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: rgba(0, 0, 0, 0.25);
    --taskbar-height: 56px;
    --window-radius: 12px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

body {
    font-family: 'Segoe UI', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    transition: background 0.2s;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

#desktop {
    width: 100vw;
    height: 100vh;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    position: relative;
    overflow: hidden;
}

#desktop::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 0;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.desktop-icons {
    position: absolute;
    top: 20px;
    left: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, 90px);
    grid-auto-rows: 100px;
    gap: 10px;
    padding: 20px;
    padding-right: 8px;
    z-index: 10;
    max-height: calc(100vh - var(--taskbar-height) - 40px);
    overflow-y: auto;
}

.desktop-icons::-webkit-scrollbar {
    width: 6px;
}

.desktop-icons::-webkit-scrollbar-track {
    background: transparent;
}

.desktop-icons::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    transition: background 0.2s;
}

.desktop-icons::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.desktop-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.desktop-icon:hover {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    transform: scale(1.05);
}

.desktop-icon:hover::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    pointer-events: none;
}

.desktop-icon:active {
    transform: scale(0.95);
}

.icon-image {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-normal);
}

.icon-image svg {
    width: 28px;
    height: 28px;
}

.desktop-icon:hover .icon-image {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.desktop-icon span {
    color: var(--text-primary);
    font-size: 12px;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#windows-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: var(--taskbar-height);
    z-index: 100;
    pointer-events: none;
}

.window {
    position: absolute;
    min-width: 400px;
    min-height: 300px;
    background: rgba(30, 30, 50, 0.85);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--window-radius);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    pointer-events: auto;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: windowOpen 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    transition: box-shadow var(--transition-normal);
}

.window:hover {
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.15) inset;
}

@keyframes windowOpen {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.window.maximized {
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    border-radius: 0;
}

.window.minimized {
    transform: scale(0.1);
    opacity: 0;
    pointer-events: none;
}

.window-header {
    height: 40px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    cursor: move;
    flex-shrink: 0;
}

.window-icon {
    width: 20px;
    height: 20px;
    margin-right: 10px;
}

.window-icon svg {
    width: 100%;
    height: 100%;
}

.window-title {
    flex: 1;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.window-controls {
    display: flex;
    gap: 8px;
    margin-left: auto;
}

.window-control {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.window-control::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    transform: translate(-50%, -50%) scale(0);
    transition: transform var(--transition-fast);
}

.window-control:hover::before {
    transform: translate(-50%, -50%) scale(1);
}

.window-control.close {
    background: #ff5f57;
}

.window-control.close::before {
    background: rgba(0, 0, 0, 0.6);
}

.window-control.close:hover {
    background: #ff3b30;
}

.window-control.minimize {
    background: #febc2e;
}

.window-control.minimize::before {
    background: rgba(0, 0, 0, 0.6);
}

.window-control.minimize:hover {
    background: #f5a623;
}

.window-control.maximize {
    background: #28c840;
}

.window-control.maximize::before {
    background: rgba(0, 0, 0, 0.6);
}

.window-control.maximize:hover {
    background: #1fb81f;
}

.window-content {
    flex: 1;
    overflow: auto;
    position: relative;
}

.window-content::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

.window-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
    transition: background 0.2s;
}

.window-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

#taskbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--taskbar-height);
    background: rgba(20, 20, 35, 0.85);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    padding: 0 12px;
    z-index: 1000;
    box-shadow: 0 -5px 30px rgba(0, 0, 0, 0.3);
}

#start-button {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

#start-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(102, 126, 234, 0.6);
}

#start-button:active {
    transform: scale(0.95);
}

#start-button svg {
    width: 24px;
    height: 24px;
    fill: white;
}

.taskbar-apps {
    display: flex;
    gap: 6px;
    margin-left: 16px;
    flex: 1;
    overflow-x: auto;
    padding: 4px 0;
}

.taskbar-apps::-webkit-scrollbar {
    height: 0;
}

.taskbar-app {
    width: 48px;
    height: 48px;
    background: var(--glass-bg);
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    position: relative;
    flex-shrink: 0;
}

.taskbar-app:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.taskbar-app.active {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--glass-border);
}

.taskbar-app.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.taskbar-app svg {
    width: 26px;
    height: 26px;
}

.taskbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

#systemTray {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
}

.tray-icon {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tray-icon:hover {
    color: var(--primary);
    transform: scale(1.1);
}

.tray-icon svg {
    width: 100%;
    height: 100%;
}

.taskbar-time {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    min-width: 100px;
}

.taskbar-time:hover {
    background: rgba(255, 255, 255, 0.1);
}

#start-menu {
    position: fixed;
    bottom: calc(var(--taskbar-height) + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 650px;
    max-width: calc(100vw - 40px);
    background: rgba(30, 30, 50, 0.95);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
    z-index: 1001;
    animation: menuSlideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    overflow: hidden;
}

@keyframes menuSlideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0) scale(1);
    }
}

.start-menu-content {
    display: flex;
    height: 450px;
}

.start-menu-left {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    border-right: 1px solid var(--glass-border);
}

.pinned-apps h3 {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.pinned-apps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.pinned-app {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 8px;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pinned-app:hover {
    background: var(--glass-bg);
}

.pinned-app:active {
    transform: scale(0.95);
}

.pinned-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-normal);
}

.pinned-app:hover .pinned-icon {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.pinned-icon svg {
    width: 22px;
    height: 22px;
}

.pinned-app span {
    color: var(--text-primary);
    font-size: 11px;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.start-menu-right {
    width: 200px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.user-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.user-avatar svg {
    width: 36px;
    height: 36px;
    fill: white;
}

.user-info {
    text-align: center;
}

.user-name {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
}

.user-status {
    display: block;
    color: var(--success);
    font-size: 12px;
    margin-top: 4px;
}

.power-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    background: rgba(255, 107, 107, 0.2);
    border: 1px solid rgba(255, 107, 107, 0.3);
    border-radius: 10px;
    color: var(--danger);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.power-button:hover {
    background: rgba(255, 107, 107, 0.3);
    transform: translateY(-2px);
}

.power-button svg {
    width: 18px;
    height: 18px;
}

#control-center {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 350px;
    background: rgba(30, 30, 50, 0.95);
    backdrop-filter: blur(30px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
    z-index: 1002;
    animation: controlCenterSlide 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    padding: 20px;
}

@keyframes controlCenterSlide {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.control-center-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.control-tile {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.control-tile:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.control-tile svg {
    width: 24px;
    height: 24px;
    color: var(--text-primary);
}

.control-tile span {
    color: var(--text-primary);
    font-size: 11px;
}

.slider-tile {
    grid-column: span 3;
    padding: 12px 16px;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.slider-container svg {
    flex-shrink: 0;
}

.slider-container input[type="range"] {
    flex: 1;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.5);
}

#login-screen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    text-align: center;
    animation: loginFadeIn 0.8s ease;
}

@keyframes loginFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.login-header {
    margin-bottom: 40px;
}

.login-time {
    font-size: 72px;
    font-weight: 300;
    color: var(--text-primary);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    margin-bottom: 8px;
}

.login-date {
    font-size: 20px;
    color: var(--text-secondary);
}

.login-avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.5);
    animation: avatarPulse 3s ease-in-out infinite;
}

@keyframes avatarPulse {
    0%, 100% { box-shadow: 0 10px 40px rgba(102, 126, 234, 0.5); }
    50% { box-shadow: 0 15px 60px rgba(102, 126, 234, 0.7); }
}

.login-avatar svg {
    width: 60px;
    height: 60px;
    fill: white;
}

.login-user {
    font-size: 24px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 40px;
}

.login-button {
    padding: 16px 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.4);
}

.login-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(102, 126, 234, 0.6);
}

.login-button:active {
    transform: translateY(0);
}

.hidden {
    display: none !important;
}

.app-file-explorer .window-content {
    display: flex;
    flex-direction: column;
}

.file-explorer-sidebar {
    width: 200px;
    background: rgba(0, 0, 0, 0.2);
    border-right: 1px solid var(--glass-border);
    padding: 12px;
    flex-shrink: 0;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 4px;
}

.sidebar-item:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
}

.sidebar-item.active {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.3), transparent);
    color: var(--text-primary);
}

.sidebar-item svg {
    width: 18px;
    height: 18px;
}

.file-explorer-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.file-explorer-path {
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.file-explorer-path input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
}

.file-explorer-path input:focus {
    border-color: var(--primary);
}

.file-explorer-content {
    flex: 1;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 16px;
    align-content: start;
    overflow-y: auto;
}

.file-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 8px;
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-item:hover {
    background: var(--glass-bg);
}

.file-item svg {
    width: 48px;
    height: 48px;
    margin-bottom: 8px;
}

.file-item span {
    color: var(--text-primary);
    font-size: 12px;
    text-align: center;
    word-break: break-word;
}

.app-settings .window-content {
    display: flex !important;
    flex-direction: row !important;
    overflow: hidden !important;
    width: 100% !important;
    height: 100% !important;
    position: relative !important;
}

.settings-sidebar {
    width: 220px !important;
    flex: 0 0 auto !important;
    background: rgba(0, 0, 0, 0.2) !important;
    border-right: 1px solid var(--glass-border) !important;
    padding: 20px 12px !important;
    overflow-y: auto !important;
    float: none !important;
    position: relative !important;
    display: block !important;
}

.settings-main {
    flex: 1 1 auto !important;
    padding: 24px !important;
    overflow-y: auto !important;
    min-width: 0 !important;
    float: none !important;
    position: relative !important;
    display: block !important;
}

.settings-sidebar-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 6px;
}

.settings-sidebar-item:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
}

.settings-sidebar-item.active {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.3), transparent);
    color: var(--text-primary);
}

.settings-sidebar-item svg {
    width: 20px;
    height: 20px;
}

.settings-main {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.settings-section {
    margin-bottom: 32px;
}

.settings-section h3 {
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: var(--glass-bg);
    border-radius: 10px;
    margin-bottom: 12px;
}

.settings-item-info h4 {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.settings-item-info p {
    color: var(--text-muted);
    font-size: 12px;
}

.toggle-switch {
    width: 48px;
    height: 26px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 13px;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.toggle-switch.active {
    background: var(--primary);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: all var(--transition-normal);
}

.toggle-switch.active::after {
    left: 25px;
}

.app-calculator .window-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.calculator-display {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    text-align: right;
}

.calculator-expression {
    color: var(--text-muted);
    font-size: 16px;
    min-height: 24px;
    margin-bottom: 8px;
}

.calculator-result {
    color: var(--text-primary);
    font-size: 36px;
    font-weight: 300;
}

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

.calc-btn {
    padding: 20px;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--glass-bg);
    color: var(--text-primary);
}

.calc-btn:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.2);
}

.calc-btn:active {
    transform: scale(0.95);
}

.calc-btn.operator {
    background: rgba(102, 126, 234, 0.3);
}

.calc-btn.operator:hover {
    background: rgba(102, 126, 234, 0.5);
}

.calc-btn.equals {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    grid-column: span 2;
}

.app-terminal .window-content {
    background: rgba(0, 0, 0, 0.8);
    padding: 16px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    color: #00ff00;
    overflow-y: auto;
}

.terminal-line {
    margin-bottom: 8px;
}

.terminal-prompt {
    color: var(--primary);
}

.terminal-output {
    color: var(--text-primary);
    white-space: pre-wrap;
}

.terminal-input {
    display: flex;
    align-items: center;
    margin-top: 8px;
}

.terminal-input span {
    color: var(--primary);
    margin-right: 8px;
}

.terminal-input input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

.app-notepad .window-content {
    display: flex;
    flex-direction: column;
}

.notepad-toolbar {
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    gap: 8px;
}

.notepad-toolbar button {
    padding: 6px 12px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.notepad-toolbar button:hover {
    background: rgba(255, 255, 255, 0.15);
}

.notepad-content {
    flex: 1;
    padding: 16px;
}

.notepad-content textarea {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Segoe UI', sans-serif;
    line-height: 1.6;
    resize: none;
    outline: none;
}

.app-browser .window-content {
    display: flex;
    flex-direction: column;
}

.browser-toolbar {
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.browser-nav-btn {
    width: 32px;
    height: 32px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.browser-nav-btn:hover {
    background: rgba(255, 255, 255, 0.15);
}

.browser-nav-btn svg {
    width: 16px;
    height: 16px;
}

.browser-url-bar {
    flex: 1;
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 0 12px;
}

.browser-url-bar input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    padding: 8px 0;
    outline: none;
}

.browser-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.browser-welcome h2 {
    color: var(--text-primary);
    font-size: 28px;
    margin-bottom: 16px;
}

.browser-welcome p {
    color: var(--text-secondary);
    font-size: 14px;
    max-width: 400px;
}

.browser-bookmarks {
    display: flex;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.bookmark-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    background: var(--glass-bg);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-width: 100px;
}

.bookmark-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

.bookmark-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    margin-bottom: 8px;
}

.bookmark-item span {
    color: var(--text-primary);
    font-size: 12px;
}

.app-music .window-content {
    display: flex;
    flex-direction: column;
    padding: 24px;
}

.music-cover {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 16px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
}

.music-cover svg {
    width: 80px;
    height: 80px;
    fill: white;
}

.music-info {
    text-align: center;
    margin-bottom: 24px;
}

.music-title {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.music-artist {
    color: var(--text-secondary);
    font-size: 14px;
}

.music-progress {
    margin-bottom: 24px;
}

.progress-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin-bottom: 8px;
    cursor: pointer;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
    width: 35%;
    transition: width 0.1s linear;
}

.progress-time {
    display: flex;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 11px;
}

.music-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.music-control {
    width: 48px;
    height: 48px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.music-control:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.music-control.play {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
}

.music-control svg {
    width: 24px;
    height: 24px;
}

.app-camera .window-content {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
    flex: 1;
}

.camera-viewfinder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 18px;
}

.app-photos .window-content {
    padding: 20px;
    overflow-y: auto;
}

.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
}

.photo-item {
    aspect-ratio: 1;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 12px;
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
}

.photo-item:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.app-clock .window-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.clock-display {
    font-size: 80px;
    font-weight: 200;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-variant-numeric: tabular-nums;
}

.clock-date {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.clock-tabs {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.clock-tab {
    padding: 8px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.clock-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    color: white;
}

.world-clocks {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    width: 100%;
    max-width: 600px;
}

.world-clock {
    background: var(--glass-bg);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.world-clock-city {
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 8px;
}

.world-clock-time {
    color: var(--text-primary);
    font-size: 24px;
    font-weight: 500;
}

@media (max-width: 768px) {
    :root {
        --taskbar-height: 50px;
    }

    .desktop-icons {
        grid-template-columns: repeat(auto-fill, 70px);
        grid-auto-rows: 85px;
        gap: 6px;
    }

    .icon-image {
        width: 40px;
        height: 40px;
    }

    .icon-image svg {
        width: 22px;
        height: 22px;
    }

    .desktop-icon span {
        font-size: 10px;
    }

    .window {
        min-width: 300px;
        min-height: 250px;
    }

    #start-menu {
        width: calc(100vw - 20px);
        left: 10px;
        transform: none;
    }

    .start-menu-content {
        flex-direction: column;
        height: auto;
        max-height: 60vh;
    }

    .start-menu-right {
        width: 100%;
        border-top: 1px solid var(--glass-border);
        border-right: none;
    }

    .pinned-apps-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    #control-center {
        width: calc(100vw - 40px);
        right: 10px;
    }

    .control-center-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .slider-tile {
        grid-column: span 2;
    }

    .login-time {
        font-size: 48px;
    }

    .file-explorer-sidebar {
        display: none;
    }

    .settings-sidebar {
        display: none;
    }
}

@media (max-width: 480px) {
    .desktop-icons {
        top: 10px;
        left: 10px;
        padding: 10px;
    }

    .taskbar-apps {
        gap: 4px;
    }

    .taskbar-app {
        width: 40px;
        height: 40px;
    }

    #systemTray {
        display: none;
    }

    .pinned-apps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .world-clocks {
        grid-template-columns: 1fr;
    }

    .music-cover {
        width: 150px;
        height: 150px;
    }

    .clock-display {
        font-size: 56px;
    }
}