.window {
    position: absolute;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #ffffff #000000 #000000 #ffffff;
    box-shadow: 2px 2px 5px rgba(0,0,0,0.3);
    min-width: 200px; min-height: 150px;
    display: flex; flex-direction: column;
}

.window-title-bar {
    background: #000080; color: white;
    padding: 4px 8px; font-weight: bold;
    display: flex; justify-content: space-between; align-items: center;
    cursor: grab; user-select: none;
}

.window-controls button {
    background: #c0c0c0; border: 1px outset #ffffff;
    width: 20px; height: 20px; line-height: 14px; cursor: pointer;
}
.window-controls button:active { border-style: inset; }

.window-body { padding: 10px; flex-grow: 1; overflow: auto; position: relative; }