:root {
    --desktop-color: #008080;
    --silver: #c0c0c0;
    --navy: #000080;
    --taskbar-height: 32px;
    --icon-size: 100px;
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
}

body {
    overflow: hidden;
}

.desktop {
    position: relative;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    background: var(--desktop-color);
    font-family: "Pixelated MS Sans Serif", Arial, sans-serif;
}

.desktop-icons {
    position: absolute;
    top: 22px;
    left: 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    z-index: 1;
}

.desktop-icon {
    width: 130px;
    min-width: 0;
    min-height: 130px;
    padding: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: white;
    background: transparent;
    border: 1px solid transparent;
    box-shadow: none;
    font-family: inherit;
    font-size: 11px;
    text-align: center;
    text-shadow: 1px 1px #000;
    cursor: pointer;
}

.desktop-icon:hover,
.desktop-icon:focus-visible {
    background: rgba(0, 0, 128, 0.35);
    outline: 1px dotted white;
}

.desktop-icon-symbol {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--icon-size);
    height: var(--icon-size);
    font-size: 80px;
    line-height: 1;
    text-shadow: none;
}

.desktop-icon-symbol img {
    display: block;
    width: var(--icon-size);
    height: var(--icon-size);
    object-fit: contain;
    image-rendering: pixelated;
}

.desktop-icon-label {
    line-height: 15px;
    overflow-wrap: anywhere;
}

.desktop > .app-window {
    position: absolute;
    top: 60px;
    left: 165px;
    width: 820px;
    height: 580px;
    max-width: calc(100% - 20px);
    max-height: calc(100% - 48px);
    display: flex;
    flex-direction: column;
    margin: 0;
    z-index: 10;
}

.desktop > .app-window[hidden] {
    display: none !important;
}

.desktop > #about {
    top: 75px;
    left: 230px;
    width: 620px;
    height: 580px;
}

.app-window .title-bar {
    flex-shrink: 0;
    min-height: 22px;
    cursor: grab;
    user-select: none;
    touch-action: none;
}

.app-window .title-bar:active {
    cursor: grabbing;
}

.app-window .title-bar-text {
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.app-window .title-bar-controls {
    flex-shrink: 0;
}

.app-window .title-bar-controls button {
    cursor: pointer;
}

.window-menu {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 19px;
    padding: 7px 9px;
    font-size: 11px;
}

.window-menu span {
    white-space: nowrap;
}

.desktop > .app-window > .window-body {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    margin: 0 4px 4px;
}

.address-bar {
    display: flex;
    align-items: center;
    gap: 9px;
    flex-shrink: 0;
    padding-bottom: 7px;
    font-size: 11px;
}

.address-field {
    flex: 1;
    min-width: 0;
    padding: 4px 6px;
    background: white;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.explorer-content {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 20px 16px;
    background: white;
}

.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 30px 18px;
    align-content: start;
}

.file {
    min-width: 0;
    padding: 7px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: black;
    text-align: center;
    text-decoration: none;
    font-family: inherit;
    font-size: 11px;
    line-height: 16px;
    overflow-wrap: anywhere;
}

.file-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 170px;
    background: #f2f2f2;
}

.file-icon img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: auto;
}

.file:hover,
.file:focus-visible {
    color: white;
    background: var(--navy);
    outline: 1px dotted white;
}

.file:hover .file-icon,
.file:focus-visible .file-icon {
    background: #e0e0e0;
}

.explorer-body .status-bar {
    flex-shrink: 0;
    margin-top: 4px;
}

.explorer-body .status-bar-field {
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.language-tabs {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    flex-shrink: 0;
    padding: 4px 5px 0;
}

.language-tab {
    position: relative;
    min-width: 110px;
    min-height: 27px;
    padding: 5px 14px;
    margin: 0;
    background: #c0c0c0;
    color: #000;
    border: 1px solid;
    border-color: #fff #808080 #808080 #fff;
    border-radius: 0;
    box-shadow: inset 1px 1px #dfdfdf;
    font-family: inherit;
    font-size: 11px;
    cursor: pointer;
}

.language-tab[aria-selected="true"] {
    z-index: 2;
    background: #fff;
    border-color: #fff #808080 #fff #fff;
    box-shadow: none;
    font-weight: bold;
    min-height: 29px;
    margin-bottom: -1px;
}

.language-tab[aria-selected="false"]:hover {
    background: #d4d4d4;
}

.language-tab:focus-visible {
    outline: 1px dotted #000;
    outline-offset: -5px;
}

.notepad-body {
    overflow: hidden;
}

.notepad-content {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 20px 24px;
    background: white;
    font-family: "Courier New", monospace;
    font-size: 13px;
    line-height: 1.65;
    scrollbar-gutter: stable;
}

.language-panel[hidden] {
    display: none !important;
}

.notepad-content h1 {
    margin: 0 0 18px;
    font-family: inherit;
    font-size: 19px;
    font-weight: bold;
}

.notepad-content h2 {
    margin: 30px 0 14px;
    font-family: inherit;
    font-size: 15px;
    font-weight: bold;
    color: #000080;
}

.notepad-content h3 {
    margin: 22px 0 10px;
    font-family: inherit;
    font-size: 13px;
    font-weight: bold;
}

.notepad-content p {
    margin: 0 0 16px;
    overflow-wrap: anywhere;
}

.notepad-content a {
    color: #0000ee;
}

.notepad-content a:hover {
    color: #000080;
}

.about-image {
    display: block;
    max-width: 260px;
    width: 100%;
    height: auto;
    margin: 0 0 22px;
    object-fit: contain;
}

.taskbar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--taskbar-height);
    padding: 3px;
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--silver);
    border-top: 2px solid white;
    z-index: 1000;
}

.start-button {
    flex-shrink: 0;
    min-width: 68px;
    height: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 3px 7px;
    font-family: inherit;
    font-size: 11px;
}

.start-button[aria-expanded="true"] {
    border-color: #808080 #fff #fff #808080;
    box-shadow: inset 1px 1px #808080;
    background: #b8b8b8;
}

.start-symbol {
    font-size: 15px;
    line-height: 1;
}

.taskbar-apps {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 4px;
}

.taskbar-app {
    flex: 0 1 160px;
    min-width: 0;
    height: 25px;
    padding: 3px 8px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    text-align: left;
    font-family: inherit;
    font-size: 11px;
}

.taskbar-clock {
    flex-shrink: 0;
    min-height: 24px;
    padding: 5px 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid;
    border-color: #808080 white white #808080;
    font-family: inherit;
    font-size: 11px;
    white-space: nowrap;
}

.desktop > .app-window.maximized {
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: calc(100% - var(--taskbar-height)) !important;
    max-width: none;
    max-height: none;
}

.start-menu {
    position: absolute;
    bottom: var(--taskbar-height);
    left: 2px;
    width: 260px;
    max-width: calc(100% - 4px);
    display: flex;
    background: #c0c0c0;
    border: 1px solid;
    border-color: #fff #000 #000 #fff;
    box-shadow:
            inset 1px 1px #dfdfdf,
            inset -1px -1px #808080,
            1px 1px 0 #000;
    padding: 3px;
    z-index: 2000;
    font-family: "Pixelated MS Sans Serif", Arial, sans-serif;
}

.start-menu[hidden] {
    display: none !important;
}

.start-menu-sidebar {
    flex-shrink: 0;
    width: 28px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    background: linear-gradient(#808080, #000080);
    overflow: hidden;
}

.start-menu-sidebar span {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    color: #fff;
    white-space: nowrap;
    font-size: 15px;
    font-weight: bold;
    padding: 12px 5px;
}

.start-menu-sidebar strong {
    color: #dfdfdf;
}

.start-menu-items {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    padding: 3px 2px;
}

.start-menu-item {
    width: 100%;
    min-width: 0;
    min-height: 46px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 6px 10px;
    margin: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    color: #000;
    font-family: inherit;
    font-size: 11px;
    font-weight: normal;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}

.start-menu-item img {
    flex-shrink: 0;
    display: block;
    width: 32px;
    height: 32px;
    object-fit: contain;
    image-rendering: pixelated;
}

.start-menu-symbol {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-family: Arial, sans-serif;
    font-size: 24px;
    font-weight: bold;
    color: #000080;
}

.start-menu-item:hover,
.start-menu-item:focus-visible {
    background: #000080;
    color: white;
    outline: none;
}

.start-menu-item:hover .start-menu-symbol,
.start-menu-item:focus-visible .start-menu-symbol {
    color: white;
}

.start-menu-divider {
    height: 2px;
    margin: 5px 5px;
    border-top: 1px solid #808080;
    border-bottom: 1px solid white;
}

@media (max-width: 700px) {
    .desktop-icons {
        top: 24px;
        left: 14px;
        gap: 14px;
    }

    .desktop-icon {
        width: 130px;
        min-height: 130px;
    }

    .desktop > .app-window,
    .desktop > #about,
    .desktop > .app-window.maximized {
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: calc(100% - var(--taskbar-height)) !important;
        max-width: none;
        max-height: none;
    }

    .app-window .title-bar {
        min-height: 30px;
        cursor: default;
    }

    .app-window .title-bar-controls {
        display: flex;
        align-items: center;
        gap: 3px;
    }

    .app-window .title-bar-controls button {
        width: 32px;
        height: 30px;
        min-width: 32px;
        min-height: 30px;
        padding: 0;
        flex-shrink: 0;
        background-position: center;
        background-repeat: no-repeat;
        background-size: auto;
    }

    .app-window .title-bar-controls button[data-action="maximize"] {
        display: none !important;
    }

    .window-menu {
        gap: 16px;
        padding: 8px 9px;
    }

    .explorer-content {
        padding: 12px 8px;
    }

    .file-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px 10px;
    }

    .file {
        padding: 5px;
        gap: 8px;
    }

    .file-icon {
        height: 140px;
    }

    .language-tabs {
        padding: 4px 3px 0;
    }

    .language-tab {
        flex: 1;
        min-width: 0;
        padding: 7px 5px;
        font-size: 11px;
    }

    .notepad-content {
        padding: 18px 14px;
        font-size: 13px;
    }

    .about-image {
        max-width: 220px;
    }

    .taskbar-app {
        flex: 0 1 110px;
        max-width: 110px;
        padding: 3px 5px;
    }

    .taskbar-clock {
        padding: 5px 6px;
    }

    .start-button {
        min-width: 58px;
    }

    .start-menu {
        width: min(280px, calc(100% - 4px));
    }

    .start-menu-item {
        min-height: 52px;
    }
}

@media (max-width: 360px) {
    .taskbar-clock {
        display: none;
    }

    .address-bar {
        gap: 5px;
    }

    .notepad-content {
        padding: 12px;
    }

    .file-icon {
        height: 120px;
    }
}

.desktop-icon img {
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}

.desktop-icon {
    user-select: none;
    -webkit-user-select: none;
}

@media (min-width: 701px) {
    .desktop-icon {
        cursor: grab;
    }

    .desktop-icon.is-dragging {
        cursor: grabbing;
    }
}

.start-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 25px;
    padding: 3px 8px;
}

.start-button img {
    display: block;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    object-fit: contain;
    image-rendering: pixelated;
}

.start-button strong {
    font-size: 11px;
    line-height: 1;
    white-space: nowrap;
}

@media (max-width: 700px) {
    .start-button {
        min-width: 70px;
        gap: 5px;
        padding: 3px 6px;
    }

    .start-button img {
        width: 18px;
        height: 18px;
    }
}