/* MÀN HÌNH CHỜ LOCKSCREEN KHÓA TOÀN GIAO DIỆN */
#lockscreen {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 20, 28, 0.85);
    backdrop-filter: blur(25px);
    z-index: 999999; /* Đè lên toàn bộ Taskbar và Desktop */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.5s ease;
}
.lock-container {
    background: rgba(22, 27, 34, 0.8);
    border: 1px solid #30363d;
    border-radius: 16px;
    width: 480px;
    padding: 30px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    text-align: center;
}
.lock-title { font-size: 22px; font-weight: 600; color: #58a6ff; margin-bottom: 25px; }
.desktop-list-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 220px;
    overflow-y: auto;
    margin-bottom: 20px;
    padding-right: 5px;
}
/* CARD PHIÊN TRONG MÀN HÌNH CHỜ */
.desktop-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #21262d;
    border: 1px solid #30363d;
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}
.desktop-card.free:hover {
    background: rgba(56, 139, 253, 0.15);
    border-color: #58a6ff;
}
.desktop-card.mapping {
    opacity: 0.5;
    cursor: not-allowed;
    background: #161b22;
}
.desktop-card-info { text-align: left; }
.desktop-card-name { font-size: 14px; font-weight: 600; color: #c9d1d9; }
.desktop-card-id { font-size: 11px; color: #8b949e; font-family: monospace; }
.status-badge { font-size: 11px; padding: 2px 8px; border-radius: 12px; font-weight: bold; }
.status-badge.free { background: rgba(57, 211, 83, 0.15); color: #39d353; }
.status-badge.mapping { background: rgba(242, 95, 92, 0.15); color: #f25f5c; }

/* NÚT DESKTOP NEW */
.btn-new-desktop {
    width: 100%;
    background: #238636;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}
.btn-new-desktop:hover { background: #2ea043; }