/* ============================================
   OS Window Styles
   ============================================ */

.os-window
{
    position: absolute;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-window);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-window);
    overflow: hidden;
    min-width: var(--window-min-width);
    min-height: var(--window-min-height);
    will-change: transform, opacity;
}

.os-window.active
{
    box-shadow: var(--shadow-window), 0 0 0 1px var(--accent-primary);
}

.os-window.maximized
{
    border-radius: 0;
    border: none;
}

/* Window Chrome */
.window-chrome
{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background-color: var(--bg-window-chrome);
    border-bottom: 1px solid var(--border-light);
    cursor: grab;
    user-select: none;
    flex-shrink: 0;
}

.window-chrome:active
{
    cursor: grabbing;
}

.window-title
{
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    text-align: center;
    pointer-events: none;
}

.window-controls
{
    display: flex;
    gap: 6px;
}

.window-control-btn
{
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.window-control-btn:hover
{
    background-color: var(--bg-icon-hover);
    color: var(--text-primary);
}

.window-control-btn.close:hover
{
    background-color: #E81123;
    color: white;
}

/* Window Content */
.window-content
{
    flex: 1;
    overflow: auto;
    padding: 16px;
    position: relative;
}

/* Resize Handle */
.window-resize-handle
{
    position: absolute;
    bottom: 0;
    right: 0;
    width: 16px;
    height: 16px;
    cursor: se-resize;
    background: linear-gradient(135deg, transparent 50%, var(--border-medium) 50%);
    border-bottom-right-radius: var(--radius-lg);
}

.os-window.maximized .window-resize-handle
{
    display: none;
}

/* Tablet Adaptation */
@media (max-width: 1023px)
{
    .os-window
    {
        width: 100vw !important;
        height: calc(100vh - var(--taskbar-height)) !important;
        top: 0 !important;
        left: 0 !important;
        border-radius: 0;
        border: none;
    }

    .window-resize-handle
    {
        display: none;
    }

    .window-chrome
    {
        cursor: default;
    }
}